feat: modbus

apps/dgiot_atomgit/README.md

@@ -103,4 +103,36 @@
 <img src="https://dgiot-1253666439.cos.ap-shanghai-fsi.myqcloud.com/atom/viewps.jpg" width = "100%" />
 
 
+## **六：gRPC**
+### 1:grpc介绍
+  gRPC是一个高性能，开源和通用的RPC框架，基于Protobuf序列化协议开发，且支持众多开发语言。gRPC基于以下理念：定义一个服务，指定其能够被远程调用的方法（包含参数和返回类型）。在服务端实现这个接口。并运行一个gRPC服务器来处理客户端调用。在客户端拥有一个存根能够向服务端一样的方法。
+###  2:dgiot_grpc_python连接
+  ![1.png](http://dgiot-1253666439.cos.ap-shanghai-fsi.myqcloud.com/dgiot_web/doc_gjb/grpc/1.png)
+### 3:Dgiot客户端
+dgiot通过grpc与其他语言相互通信以及函数调用。在dgiot中，以一个grpc通道处理所有交互。而grpc相关函数定义在dgiot_dlink下，分为login,logout,send三个函数。
+![1.png](http://dgiot-1253666439.cos.ap-shanghai-fsi.myqcloud.com/dgiot_web/doc_gjb/grpc/2.png)
+  + login
+    login函数用于登录grpc服务端，其参数为ClinetId，为客户端编号。建立grpc通道后，将会在通道启动时以通道id为ClinetId登录python服务器。
+  + send
+    send函数用于向python客户端发送消息。send函数位于通道的handle_message函数中。在通道接收到消息，并且匹配上Message中内容后即可根据消息内容执行send函数调用python服务。
+    send函数以map的格式发送消息，消息在发送前将经过base64编码。
+  + logout
+   logout函数用于断开与python服务的连接，一般在通道的关闭函数stop中调用。
 
+### 4:Python 程序文件
+  python程序示例位于插件\priv\example\python3目录下，其目录结构如下：
+  ![1.png](http://dgiot-1253666439.cos.ap-shanghai-fsi.myqcloud.com/dgiot_web/doc_gjb/grpc/3.png)
+
+  运行dlink_server文件即可启动python服务，接收信息函数位于Dlink类下SayHello方法。其接收request和context两个参数，参数含义如下：
+  + 1.request：接收参数，request下name属性为接收到的信息。
+  + 2.context：接收参数，当前的环境
+
+  通过对request.name使用base64解码并转为字典后即可获取原本的信息。
+  ![1.png](http://dgiot-1253666439.cos.ap-shanghai-fsi.myqcloud.com/dgiot_web/doc_gjb/grpc/4.png)
+  接收参数后通过HelloReply的message字段返回一条信息：
+  ![1.png](http://dgiot-1253666439.cos.ap-shanghai-fsi.myqcloud.com/dgiot_web/doc_gjb/grpc/5.png)
+  完整交互结果如下图：
+  ![1.png](http://dgiot-1253666439.cos.ap-shanghai-fsi.myqcloud.com/dgiot_web/doc_gjb/grpc/6.png)
+
+### 5:gRPC官方文档
+  https://grpc.io/docs/

apps/dgiot_atomgit/include/dgiot_atomgit.hrl

@@ -1,4 +1,4 @@
--define(ATOMGIT, <<"ATOMGIT">>).
+-define(atomgit, <<"atomgit">>).
 
 -record(state, {
     id,

apps/dgiot_atomgit/priv/example/Erlang/.gitignore

@@ -0,0 +1,23 @@
+.rebar3
+_*
+.eunit
+*.o
+*.beam
+*.plt
+*.swp
+*.swo
+.erlang.cookie
+ebin
+log
+erl_crash.dump
+.rebar
+logs
+_build
+.idea
+*.iml
+rebar3.crashdump
+*~
+rebar.lock
+src/route_guide_pb.erl
+src/routeguide_route_guide_bhvr.erl
+src/routeguide_route_guide_client.erl

apps/dgiot_atomgit/priv/example/Erlang/LICENSE

@@ -0,0 +1,191 @@
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apps/dgiot_atomgit/priv/example/Erlang/README.md

@@ -0,0 +1,53 @@
+# route_guide
+
+The example application for grpc
+
+## Build
+
+```
+rebar3 compile
+```
+
+## Usage
+
+1. Start the rebar3 shell
+
+    ```
+    rebar3 shell
+    ```
+
+2. Start the `route_guide` services in the rebar3 shell
+
+    ```erl
+    1> route_guide:start_services().
+    Start service route_guide on 10000 successfully!
+    ```
+
+3. Start the client channel
+
+    ```erl
+    2> route_guide:start_client_channel().
+    Start client channel channel1 for http://127.0.0.1:10000 successfully!
+    ```
+
+4. Call the `get_feature` method of route_guide services
+
+    ```erl
+    3> routeguide_route_guide_client:get_feature(#{latitude => 1, longitude => 1}, #{channel => channel1}).
+    {ok,#{name => <<>>},
+        [{<<"grpc-message">>,<<>>},{<<"grpc-status">>,<<"0">>}]}
+    ```
+
+## Project Structure
+
+```
+├── priv
+│   └── route_guide.proto       %% The grpc services defined file
+└── src
+    ├── route_guide.app.src
+    ├── route_guide.erl         %% mainly example codes
+    ├── route_guide_pb.erl      %% generated by gpb
+    ├── route_guide_svr.erl     %% the route_guide service implementation
+    ├── routeguide_route_guide_bhvr.erl   %% generated by grpc-plugin
+    └── routeguide_route_guide_client.erl %% generated by grpc-plugin
+```

apps/dgiot_atomgit/priv/example/Erlang/priv/route_guide.proto

@@ -0,0 +1,125 @@
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+syntax = "proto3";
+
+option java_multiple_files = true;
+option java_package = "io.grpc.examples.routeguide";
+option java_outer_classname = "RouteGuideProto";
+
+package routeguide;
+
+// Interface exported by the server.
+service RouteGuide {
+  // A simple RPC.
+  //
+  // Obtains the feature at a given position.
+  //
+  // A feature with an empty name is returned if there's no feature at the given
+  // position.
+  rpc GetFeature(Point) returns (Feature) {}
+
+  // A server-to-client streaming RPC.
+  //
+  // Obtains the Features available within the given Rectangle.  Results are
+  // streamed rather than returned at once (e.g. in a response message with a
+  // repeated field), as the rectangle may cover a large area and contain a
+  // huge number of features.
+  rpc ListFeatures(Rectangle) returns (stream Feature) {}
+
+  // A client-to-server streaming RPC.
+  //
+  // Accepts a stream of Points on a route being traversed, returning a
+  // RouteSummary when traversal is completed.
+  rpc RecordRoute(stream Point) returns (RouteSummary) {}
+
+  // A Bidirectional streaming RPC.
+  //
+  // Accepts a stream of RouteNotes sent while a route is being traversed,
+  // while receiving other RouteNotes (e.g. from other users).
+  rpc RouteChat(stream RouteNote) returns (stream RouteNote) {}
+}
+
+// Points are represented as latitude-longitude pairs in the E7 representation
+// (degrees multiplied by 10**7 and rounded to the nearest integer).
+// Latitudes should be in the range +/- 90 degrees and longitude should be in
+// the range +/- 180 degrees (inclusive).
+message Point {
+  int32 latitude = 1;
+  int32 longitude = 2;
+}
+
+// A latitude-longitude rectangle, represented as two diagonally opposite
+// points "lo" and "hi".
+message Rectangle {
+  // One corner of the rectangle.
+  Point lo = 1;
+
+  // The other corner of the rectangle.
+  Point hi = 2;
+}
+
+// A feature names something at a given point.
+//
+// If a feature could not be named, the name is empty.
+message Feature {
+  // The name of the feature.
+  string name = 1;
+
+  // The point where the feature is detected.
+  Point location = 2;
+}
+
+// A RouteNote is a message sent while at a given point.
+message RouteNote {
+  // The location from which the message is sent.
+  Point location = 1;
+
+  // The message to be sent.
+  string message = 2;
+}
+
+// A RouteSummary is received in response to a RecordRoute rpc.
+//
+// It contains the number of individual points received, the number of
+// detected features, and the total distance covered as the cumulative sum of
+// the distance between each point.
+message RouteSummary {
+  // The number of points received.
+  int32 point_count = 1;
+
+  // The number of known features passed while traversing the route.
+  int32 feature_count = 2;
+
+  // The distance covered in metres.
+  int32 distance = 3;
+
+  // The duration of the traversal in seconds.
+  int32 elapsed_time = 4;
+}

apps/dgiot_atomgit/priv/example/Erlang/rebar.config

@@ -0,0 +1,22 @@
+{erl_opts, [debug_info]}.
+
+{plugins,
+ [rebar3_proper,
+  {grpc_plugin, {git, "https://gitee.com/fastdgiot/grpc_plugin.git", {tag, "v0.10.3"}}}
+ ]}.
+
+{deps,
+ [{grpc, {git, "https://gitee.com/fastdgiot/grpc-erl", {tag, "0.6.4"}}}
+ ]}.
+
+{grpc,
+ [ {type, all}
+ , {protos, ["priv/"]}
+ , {out_dir, "src/"}
+ , {gpb_opts, [{module_name_suffix, "_pb"}]}
+ ]}.
+
+{provider_hooks,
+ [{pre, [{compile, {grpc, gen}},
+         {clean, {grpc, clean}}]}
+ ]}.

apps/dgiot_atomgit/priv/example/Erlang/src/route_guide.app.src

@@ -0,0 +1,11 @@
+{application, route_guide,
+ [{description, "An OTP application"},
+  {vsn, "0.1.0"},
+  {registered, []},
+  {mod, {route_guide, []}},
+  {applications, [kernel,stdlib,grpc]},
+  {env,[]},
+  {modules, []},
+  {licenses, ["Apache 2.0"]},
+  {links, []}
+ ]}.

apps/dgiot_atomgit/priv/example/Erlang/src/route_guide.erl

@@ -0,0 +1,64 @@
+-module(route_guide).
+
+-behaviour(supervisor).
+-behaviour(application).
+
+-export([start/2, stop/1]).
+-export([init/1]).
+
+-export([start_services/0, start_client_channel/0,
+         stop_services/0, stop_client_channel/0]).
+
+%%--------------------------------------------------------------------
+%% APIs
+
+-define(SERVER_NAME, route_guide).
+-define(CHANN_NAME,  channel1).
+
+start_services() ->
+    Services = #{protos => [route_guide_pb],
+                 services => #{'routeguide.RouteGuide' => route_guide_svr}
+                },
+    Options = [],
+    {ok, _} = grpc:start_server(?SERVER_NAME, 10000, Services, Options),
+    io:format("Start service ~s on 10000 successfully!~n", [?SERVER_NAME]).
+
+start_client_channel() ->
+    ClientOps = #{},
+    SvrAddr = "http://127.0.0.1:10000",
+    {ok, _} = grpc_client_sup:create_channel_pool(
+                ?CHANN_NAME,
+                SvrAddr,
+                ClientOps
+               ),
+    io:format("Start client channel ~s for ~s successfully!~n~n"
+              "Call the 'routeguide_route_guide_client' module exported functions "
+              "to use it. e.g:~n"
+              "  routeguide_route_guide_client:get_feature(#{latitude => 1"
+              ", longitude => 1}, #{channel => channel1}).~n",
+              [?CHANN_NAME, SvrAddr]).
+
+stop_services() ->
+    grpc:stop_server(?SERVER_NAME).
+
+stop_client_channel() ->
+    grpc_client_sup:stop_channel_pool(?CHANN_NAME).
+
+%%--------------------------------------------------------------------
+%% APIs for application
+
+start(_StartType, _StartArgs) ->
+    supervisor:start_link({local, ?MODULE}, ?MODULE, []).
+
+stop(_State) ->
+    ok.
+
+%%--------------------------------------------------------------------
+%% callbacks for supervisor
+
+init([]) ->
+    SupFlags = #{strategy => one_for_all,
+                 intensity => 0,
+                 period => 1},
+    ChildSpecs = [],
+    {ok, {SupFlags, ChildSpecs}}.

apps/dgiot_atomgit/priv/example/Erlang/src/route_guide_svr.erl

@@ -0,0 +1,56 @@
+-module(route_guide_svr).
+
+-behavior(routeguide_route_guide_bhvr).
+
+-compile(export_all).
+-compile(nowarn_export_all).
+
+-define(LOG(Fmt, Args), io:format(standard_error, "[Svr] " ++ Fmt, Args)).
+
+%%--------------------------------------------------------------------
+%% Callbacks
+
+get_feature(Request, _Md) ->
+    ?LOG("~p: ~0p~n", [?FUNCTION_NAME, Request]),
+    {ok, #{}, _Md}.
+
+list_features(Stream, _Md) ->
+    {eos, [Request], NStream} = grpc_stream:recv(Stream),
+    ?LOG("~p: ~0p~n", [?FUNCTION_NAME, Request]),
+
+    grpc_stream:reply(Stream, [#{name => "City1", location => #{latitude => 1, longitude => 1}}]),
+    grpc_stream:reply(Stream, [#{name => "City2", location => #{latitude => 2, longitude => 2}}]),
+    grpc_stream:reply(Stream, [#{name => "City3", location => #{latitude => 3, longitude => 3}}]),
+    {ok, NStream}.
+
+record_route(Stream, _Md) ->
+    LoopRecv = fun _Lp(St, Acc) ->
+        case grpc_stream:recv(St) of
+            {more, Reqs, NSt} ->
+                ?LOG("~p: ~0p~n", [?FUNCTION_NAME, Reqs]),
+                _Lp(NSt, Acc ++ Reqs);
+            {eos, Reqs, NSt} ->
+                ?LOG("~p: ~0p~n", [?FUNCTION_NAME, Reqs]),
+                {NSt, Acc ++ Reqs}
+        end
+    end,
+    {NStream, Points} = LoopRecv(Stream, []),
+    grpc_stream:reply(NStream, #{point_count => length(Points)}),
+    {ok, NStream}.
+
+route_chat(Stream, _Md) ->
+    grpc_stream:reply(Stream, [#{name => "City1", location => #{latitude => 1, longitude => 1}}]),
+    grpc_stream:reply(Stream, [#{name => "City2", location => #{latitude => 2, longitude => 2}}]),
+    LoopRecv = fun _Lp(St) ->
+        case grpc_stream:recv(St) of
+            {more, Reqs, NSt} ->
+                ?LOG("~p: ~0p~n", [?FUNCTION_NAME, Reqs]),
+                _Lp(NSt);
+            {eos, Reqs, NSt} ->
+                ?LOG("~p: ~0p~n", [?FUNCTION_NAME, Reqs]),
+                NSt
+        end
+    end,
+    NStream = LoopRecv(Stream),
+    grpc_stream:reply(NStream, [#{name => "City3", location => #{latitude => 3, longitude => 3}}]),
+    {ok, NStream}.

apps/dgiot_atomgit/priv/example/java/dlink_client.java

@@ -0,0 +1,100 @@
+/*
+ * Copyright 2015 The gRPC Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.grpc.examples.helloworld;
+
+import io.grpc.Channel;
+import io.grpc.ManagedChannel;
+import io.grpc.ManagedChannelBuilder;
+import io.grpc.StatusRuntimeException;
+import java.util.concurrent.TimeUnit;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * https://github.com/grpc/grpc-java/blob/v1.47.0/examples/src/main/java/io/grpc/examples/helloworld/HelloWorldClient.java
+ * A simple client that requests a greeting from the {@link HelloWorldServer}.
+ */
+public class HelloWorldClient {
+  private static final Logger logger = Logger.getLogger(HelloWorldClient.class.getName());
+
+  private final GreeterGrpc.GreeterBlockingStub blockingStub;
+
+  /** Construct client for accessing HelloWorld server using the existing channel. */
+  public HelloWorldClient(Channel channel) {
+    // 'channel' here is a Channel, not a ManagedChannel, so it is not this code's responsibility to
+    // shut it down.
+
+    // Passing Channels to code makes code easier to test and makes it easier to reuse Channels.
+    blockingStub = GreeterGrpc.newBlockingStub(channel);
+  }
+
+  /** Say hello to server. */
+  public void greet(String name) {
+    logger.info("Will try to greet " + name + " ...");
+    HelloRequest request = HelloRequest.newBuilder().setName(name).build();
+    HelloReply response;
+    try {
+      response = blockingStub.sayHello(request);
+    } catch (StatusRuntimeException e) {
+      logger.log(Level.WARNING, "RPC failed: {0}", e.getStatus());
+      return;
+    }
+    logger.info("Greeting: " + response.getMessage());
+  }
+
+  /**
+   * Greet server. If provided, the first element of {@code args} is the name to use in the
+   * greeting. The second argument is the target server.
+   */
+  public static void main(String[] args) throws Exception {
+    String user = "world";
+    // Access a service running on the local machine on port 50051
+    String target = "localhost:50051";
+    // Allow passing in the user and target strings as command line arguments
+    if (args.length > 0) {
+      if ("--help".equals(args[0])) {
+        System.err.println("Usage: [name [target]]");
+        System.err.println("");
+        System.err.println("  name    The name you wish to be greeted by. Defaults to " + user);
+        System.err.println("  target  The server to connect to. Defaults to " + target);
+        System.exit(1);
+      }
+      user = args[0];
+    }
+    if (args.length > 1) {
+      target = args[1];
+    }
+
+    // Create a communication channel to the server, known as a Channel. Channels are thread-safe
+    // and reusable. It is common to create channels at the beginning of your application and reuse
+    // them until the application shuts down.
+    ManagedChannel channel = ManagedChannelBuilder.forTarget(target)
+            // Channels are secure by default (via SSL/TLS). For the example we disable TLS to avoid
+            // needing certificates.
+            .usePlaintext()
+            .build();
+    try {
+      HelloWorldClient client = new HelloWorldClient(channel);
+      client.greet(user);
+    } finally {
+      // ManagedChannels use resources like threads and TCP connections. To prevent leaking these
+      // resources the channel should be shut down when it will no longer be used. If it may be used
+      // again leave it running.
+      channel.shutdownNow().awaitTermination(5, TimeUnit.SECONDS);
+    }
+  }
+}

apps/dgiot_atomgit/priv/example/java/dlink_server.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright 2015 The gRPC Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.grpc.examples.helloworld;
+
+import io.grpc.Server;
+import io.grpc.ServerBuilder;
+import io.grpc.stub.StreamObserver;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+import java.util.logging.Logger;
+
+/**
+ * https://github.com/grpc/grpc-java/blob/v1.47.0/examples/src/main/java/io/grpc/examples/helloworld/HelloWorldClient.java
+ * Server that manages startup/shutdown of a {@code Greeter} server.
+ */
+public class HelloWorldServer {
+  private static final Logger logger = Logger.getLogger(HelloWorldServer.class.getName());
+
+  private Server server;
+
+  private void start() throws IOException {
+    /* The port on which the server should run */
+    int port = 50051;
+    server = ServerBuilder.forPort(port)
+        .addService(new GreeterImpl())
+        .build()
+        .start();
+    logger.info("Server started, listening on " + port);
+    Runtime.getRuntime().addShutdownHook(new Thread() {
+      @Override
+      public void run() {
+        // Use stderr here since the logger may have been reset by its JVM shutdown hook.
+        System.err.println("*** shutting down gRPC server since JVM is shutting down");
+        try {
+          HelloWorldServer.this.stop();
+        } catch (InterruptedException e) {
+          e.printStackTrace(System.err);
+        }
+        System.err.println("*** server shut down");
+      }
+    });
+  }
+
+  private void stop() throws InterruptedException {
+    if (server != null) {
+      server.shutdown().awaitTermination(30, TimeUnit.SECONDS);
+    }
+  }
+
+  /**
+   * Await termination on the main thread since the grpc library uses daemon threads.
+   */
+  private void blockUntilShutdown() throws InterruptedException {
+    if (server != null) {
+      server.awaitTermination();
+    }
+  }
+
+  /**
+   * Main launches the server from the command line.
+   */
+  public static void main(String[] args) throws IOException, InterruptedException {
+    final HelloWorldServer server = new HelloWorldServer();
+    server.start();
+    server.blockUntilShutdown();
+  }
+
+  static class GreeterImpl extends GreeterGrpc.GreeterImplBase {
+
+    @Override
+    public void sayHello(HelloRequest req, StreamObserver<HelloReply> responseObserver) {
+      HelloReply reply = HelloReply.newBuilder().setMessage("Hello " + req.getName()).build();
+      responseObserver.onNext(reply);
+      responseObserver.onCompleted();
+    }
+  }
+}

apps/dgiot_atomgit/priv/example/java/pom.xml

@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.1.5.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.dgiot.dataserver</groupId>
+    <artifactId>grpcserver</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>grpcserver</name>
+    <description>grpcserver project for Spring Boot</description>
+
+    <properties>
+        <java.version>1.8</java.version>
+        <protobuf.version>3.19.4</protobuf.version>
+        <grpc.version>1.26.0</grpc.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.google.protobuf</groupId>
+            <artifactId>protobuf-java</artifactId>
+            <version>${protobuf.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>io.grpc</groupId>
+            <artifactId>grpc-all</artifactId>
+            <version>${grpc.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <!-- os系统信息插件, protobuf-maven-plugin需要获取系统信息下载相应的protobuf程序 -->
+        <extensions>
+            <extension>
+                <groupId>kr.motd.maven</groupId>
+                <artifactId>os-maven-plugin</artifactId>
+                <version>1.6.2</version>
+            </extension>
+        </extensions>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+
+            <plugin>
+                <groupId>org.xolstice.maven.plugins</groupId>
+                <artifactId>protobuf-maven-plugin</artifactId>
+                <version>0.6.1</version>
+
+                <configuration>
+                    <protocArtifact>com.google.protobuf:protoc:${protobuf.version}:exe:${os.detected.classifier}</protocArtifact>
+                    <pluginId>grpc-java</pluginId>
+                    <pluginArtifact>io.grpc:protoc-gen-grpc-java:${grpc.version}:exe:${os.detected.classifier}</pluginArtifact>
+
+                    <!-- proto文件目录 -->
+                    <protoSourceRoot>${project.basedir}/src/main/proto</protoSourceRoot>
+                    <!-- 生成的Java文件目录 -->
+                    <outputDirectory>${project.basedir}/src/main/java/</outputDirectory>
+                    <clearOutputDirectory>false</clearOutputDirectory>
+                    <!--<outputDirectory>${project.build.directory}/generated-sources/protobuf</outputDirectory>-->
+                </configuration>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>compile</goal>
+                            <goal>compile-custom</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>

apps/dgiot_atomgit/priv/example/java/src/main/java/com/dgiot/dataserver/grpcserver/TestServer.java

@@ -0,0 +1,136 @@
+package com.dgiot.dataserver.grpcserver;
+
+import io.grpc.Server;
+import io.grpc.ServerBuilder;
+import io.grpc.examples.dlink.DlinkGrpc;
+import io.grpc.examples.dlink.HelloRequest;
+import io.grpc.examples.dlink.HelloReply;
+import io.grpc.examples.dlink.HealthCheckRequest;
+import io.grpc.examples.dlink.HealthCheckResponse;
+import io.grpc.stub.StreamObserver;
+
+import java.io.IOException;
+
+/**
+ * 服务端
+ */
+
+public class TestServer {
+    //定义端口
+    private final int port = 50051;
+    //服务
+    private Server server;
+
+    //启动服务,并且接受请求
+    private void start() throws IOException {
+        server = ServerBuilder.forPort(port).addService(new DlinkImpl()).build().start();
+        System.out.println("服务开始启动-------");
+        Runtime.getRuntime().addShutdownHook(new Thread() {
+            @Override
+            public void run() {
+                System.err.println("------shutting down gRPC server since JVM is shutting down-------");
+                TestServer.this.stop();
+                System.err.println("------server shut down------");
+            }
+        });
+
+    }
+
+    //stop服务
+    private void stop() {
+        if (server != null) {
+            server.shutdown();
+        }
+    }
+    //server阻塞到程序退出
+    private void  blockUntilShutdown() throws InterruptedException {
+        if (server!=null){
+            server.awaitTermination();
+        }
+    }
+
+    //实现服务接口的类
+    private class DlinkImpl extends DlinkGrpc.DlinkImplBase {
+        // Sends a greeting
+        @Override
+        public void sayHello (HelloRequest request, StreamObserver<HelloReply> responseObserver) {
+            HelloReply build = HelloReply.newBuilder().setMessage(request.getName()).build();
+            //onNext()方法向客户端返回结果
+            responseObserver.onNext(build);
+            //告诉客户端这次调用已经完成
+            responseObserver.onCompleted();
+        }
+
+
+        // If the requested service is unknown, the call will fail with status
+        // NOT_FOUND.
+        @Override
+        public void check(HealthCheckRequest checkRequest, StreamObserver<HealthCheckResponse> responseObserver) {
+            System.out.println("健康检查:"+ checkRequest.getService());
+            HealthCheckResponse.ServingStatus servingStatus =getServingStatus(checkRequest);
+            HealthCheckResponse response = HealthCheckResponse.newBuilder()
+                    .setStatus(servingStatus)
+                    .build();
+
+            //onNext()方法向客户端返回结果
+            responseObserver.onNext(response);
+            //告诉客户端这次调用已经完成
+            responseObserver.onCompleted();
+        }
+
+        // Performs a watch for the serving status of the requested service.
+        // The server will immediately send back a message indicating the current
+        // serving status.  It will then subsequently send a new message whenever
+        // the service's serving status changes.
+        //
+        // If the requested service is unknown when the call is received, the
+        // server will send a message setting the serving status to
+        // SERVICE_UNKNOWN but will *not* terminate the call.  If at some
+        // future point, the serving status of the service becomes known, the
+        // server will send a new message with the service's serving status.
+        //
+        // If the call terminates with status UNIMPLEMENTED, then clients
+        // should assume this method is not supported and should not retry the
+        // call.  If the call terminates with any other status (including OK),
+        // clients should retry the call with appropriate exponential backoff.
+        @Override
+        public void watch(HealthCheckRequest checkRequest, StreamObserver<HealthCheckResponse> responseObserver) {
+            System.out.println("健康检查 Stream:"+ checkRequest.getService());
+            HealthCheckResponse.ServingStatus servingStatus =getServingStatus(checkRequest);
+            HealthCheckResponse response = HealthCheckResponse.newBuilder()
+                    .setStatus(servingStatus)
+                    .build();
+            responseObserver.onNext(response);
+
+        }
+
+        private HealthCheckResponse.ServingStatus getServingStatus(HealthCheckRequest request){
+            HealthCheckResponse.ServingStatus servingStatus;
+            String service = request.getService();
+            switch(service){
+                case"":
+                    servingStatus = HealthCheckResponse.ServingStatus.SERVING;
+                    break;
+                case"mysql":
+                    servingStatus = HealthCheckResponse.ServingStatus.SERVING; //checkMySQL();
+                    break;
+                case"redis":
+                    servingStatus  = HealthCheckResponse.ServingStatus.SERVING;//checkRedis();
+                    break;
+                default:
+                    servingStatus = HealthCheckResponse.ServingStatus.UNKNOWN;
+                    break;
+            }
+            return servingStatus;
+        }
+
+    }
+
+    public static void main(String[] args) throws IOException, InterruptedException {
+
+        final  TestServer server=new TestServer();
+        server.start();
+        server.blockUntilShutdown();
+
+    }
+}

apps/dgiot_atomgit/priv/example/java/src/main/java/io/grpc/examples/dlink/DlinkGrpc.java

@@ -0,0 +1,517 @@
+package io.grpc.examples.dlink;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+import static io.grpc.stub.ClientCalls.asyncBidiStreamingCall;
+import static io.grpc.stub.ClientCalls.asyncClientStreamingCall;
+import static io.grpc.stub.ClientCalls.asyncServerStreamingCall;
+import static io.grpc.stub.ClientCalls.asyncUnaryCall;
+import static io.grpc.stub.ClientCalls.blockingServerStreamingCall;
+import static io.grpc.stub.ClientCalls.blockingUnaryCall;
+import static io.grpc.stub.ClientCalls.futureUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncBidiStreamingCall;
+import static io.grpc.stub.ServerCalls.asyncClientStreamingCall;
+import static io.grpc.stub.ServerCalls.asyncServerStreamingCall;
+import static io.grpc.stub.ServerCalls.asyncUnaryCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
+import static io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall;
+
+/**
+ * <pre>
+ * The dlink service definition.
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler (version 1.26.0)",
+    comments = "Source: dlink.proto")
+public final class DlinkGrpc {
+
+  private DlinkGrpc() {}
+
+  public static final String SERVICE_NAME = "dgiot.Dlink";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<io.grpc.examples.dlink.HelloRequest,
+      io.grpc.examples.dlink.HelloReply> getSayHelloMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "SayHello",
+      requestType = io.grpc.examples.dlink.HelloRequest.class,
+      responseType = io.grpc.examples.dlink.HelloReply.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<io.grpc.examples.dlink.HelloRequest,
+      io.grpc.examples.dlink.HelloReply> getSayHelloMethod() {
+    io.grpc.MethodDescriptor<io.grpc.examples.dlink.HelloRequest, io.grpc.examples.dlink.HelloReply> getSayHelloMethod;
+    if ((getSayHelloMethod = DlinkGrpc.getSayHelloMethod) == null) {
+      synchronized (DlinkGrpc.class) {
+        if ((getSayHelloMethod = DlinkGrpc.getSayHelloMethod) == null) {
+          DlinkGrpc.getSayHelloMethod = getSayHelloMethod =
+              io.grpc.MethodDescriptor.<io.grpc.examples.dlink.HelloRequest, io.grpc.examples.dlink.HelloReply>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "SayHello"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  io.grpc.examples.dlink.HelloRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  io.grpc.examples.dlink.HelloReply.getDefaultInstance()))
+              .setSchemaDescriptor(new DlinkMethodDescriptorSupplier("SayHello"))
+              .build();
+        }
+      }
+    }
+    return getSayHelloMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<io.grpc.examples.dlink.HealthCheckRequest,
+      io.grpc.examples.dlink.HealthCheckResponse> getCheckMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "Check",
+      requestType = io.grpc.examples.dlink.HealthCheckRequest.class,
+      responseType = io.grpc.examples.dlink.HealthCheckResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<io.grpc.examples.dlink.HealthCheckRequest,
+      io.grpc.examples.dlink.HealthCheckResponse> getCheckMethod() {
+    io.grpc.MethodDescriptor<io.grpc.examples.dlink.HealthCheckRequest, io.grpc.examples.dlink.HealthCheckResponse> getCheckMethod;
+    if ((getCheckMethod = DlinkGrpc.getCheckMethod) == null) {
+      synchronized (DlinkGrpc.class) {
+        if ((getCheckMethod = DlinkGrpc.getCheckMethod) == null) {
+          DlinkGrpc.getCheckMethod = getCheckMethod =
+              io.grpc.MethodDescriptor.<io.grpc.examples.dlink.HealthCheckRequest, io.grpc.examples.dlink.HealthCheckResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "Check"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  io.grpc.examples.dlink.HealthCheckRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  io.grpc.examples.dlink.HealthCheckResponse.getDefaultInstance()))
+              .setSchemaDescriptor(new DlinkMethodDescriptorSupplier("Check"))
+              .build();
+        }
+      }
+    }
+    return getCheckMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<io.grpc.examples.dlink.HealthCheckRequest,
+      io.grpc.examples.dlink.HealthCheckResponse> getWatchMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "Watch",
+      requestType = io.grpc.examples.dlink.HealthCheckRequest.class,
+      responseType = io.grpc.examples.dlink.HealthCheckResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.SERVER_STREAMING)
+  public static io.grpc.MethodDescriptor<io.grpc.examples.dlink.HealthCheckRequest,
+      io.grpc.examples.dlink.HealthCheckResponse> getWatchMethod() {
+    io.grpc.MethodDescriptor<io.grpc.examples.dlink.HealthCheckRequest, io.grpc.examples.dlink.HealthCheckResponse> getWatchMethod;
+    if ((getWatchMethod = DlinkGrpc.getWatchMethod) == null) {
+      synchronized (DlinkGrpc.class) {
+        if ((getWatchMethod = DlinkGrpc.getWatchMethod) == null) {
+          DlinkGrpc.getWatchMethod = getWatchMethod =
+              io.grpc.MethodDescriptor.<io.grpc.examples.dlink.HealthCheckRequest, io.grpc.examples.dlink.HealthCheckResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.SERVER_STREAMING)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "Watch"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  io.grpc.examples.dlink.HealthCheckRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  io.grpc.examples.dlink.HealthCheckResponse.getDefaultInstance()))
+              .setSchemaDescriptor(new DlinkMethodDescriptorSupplier("Watch"))
+              .build();
+        }
+      }
+    }
+    return getWatchMethod;
+  }
+
+  /**
+   * Creates a new async stub that supports all call types for the service
+   */
+  public static DlinkStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<DlinkStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<DlinkStub>() {
+        @java.lang.Override
+        public DlinkStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new DlinkStub(channel, callOptions);
+        }
+      };
+    return DlinkStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static DlinkBlockingStub newBlockingStub(
+      io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<DlinkBlockingStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<DlinkBlockingStub>() {
+        @java.lang.Override
+        public DlinkBlockingStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new DlinkBlockingStub(channel, callOptions);
+        }
+      };
+    return DlinkBlockingStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new ListenableFuture-style stub that supports unary calls on the service
+   */
+  public static DlinkFutureStub newFutureStub(
+      io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<DlinkFutureStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<DlinkFutureStub>() {
+        @java.lang.Override
+        public DlinkFutureStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new DlinkFutureStub(channel, callOptions);
+        }
+      };
+    return DlinkFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   * <pre>
+   * The dlink service definition.
+   * </pre>
+   */
+  public static abstract class DlinkImplBase implements io.grpc.BindableService {
+
+    /**
+     * <pre>
+     * Sends a greeting
+     * </pre>
+     */
+    public void sayHello(io.grpc.examples.dlink.HelloRequest request,
+        io.grpc.stub.StreamObserver<io.grpc.examples.dlink.HelloReply> responseObserver) {
+      asyncUnimplementedUnaryCall(getSayHelloMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * If the requested service is unknown, the call will fail with status
+     * NOT_FOUND.
+     * </pre>
+     */
+    public void check(io.grpc.examples.dlink.HealthCheckRequest request,
+        io.grpc.stub.StreamObserver<io.grpc.examples.dlink.HealthCheckResponse> responseObserver) {
+      asyncUnimplementedUnaryCall(getCheckMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Performs a watch for the serving status of the requested service.
+     * The server will immediately send back a message indicating the current
+     * serving status.  It will then subsequently send a new message whenever
+     * the service's serving status changes.
+     * If the requested service is unknown when the call is received, the
+     * server will send a message setting the serving status to
+     * SERVICE_UNKNOWN but will *not* terminate the call.  If at some
+     * future point, the serving status of the service becomes known, the
+     * server will send a new message with the service's serving status.
+     * If the call terminates with status UNIMPLEMENTED, then clients
+     * should assume this method is not supported and should not retry the
+     * call.  If the call terminates with any other status (including OK),
+     * clients should retry the call with appropriate exponential backoff.
+     * </pre>
+     */
+    public void watch(io.grpc.examples.dlink.HealthCheckRequest request,
+        io.grpc.stub.StreamObserver<io.grpc.examples.dlink.HealthCheckResponse> responseObserver) {
+      asyncUnimplementedUnaryCall(getWatchMethod(), responseObserver);
+    }
+
+    @java.lang.Override public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+            getSayHelloMethod(),
+            asyncUnaryCall(
+              new MethodHandlers<
+                io.grpc.examples.dlink.HelloRequest,
+                io.grpc.examples.dlink.HelloReply>(
+                  this, METHODID_SAY_HELLO)))
+          .addMethod(
+            getCheckMethod(),
+            asyncUnaryCall(
+              new MethodHandlers<
+                io.grpc.examples.dlink.HealthCheckRequest,
+                io.grpc.examples.dlink.HealthCheckResponse>(
+                  this, METHODID_CHECK)))
+          .addMethod(
+            getWatchMethod(),
+            asyncServerStreamingCall(
+              new MethodHandlers<
+                io.grpc.examples.dlink.HealthCheckRequest,
+                io.grpc.examples.dlink.HealthCheckResponse>(
+                  this, METHODID_WATCH)))
+          .build();
+    }
+  }
+
+  /**
+   * <pre>
+   * The dlink service definition.
+   * </pre>
+   */
+  public static final class DlinkStub extends io.grpc.stub.AbstractAsyncStub<DlinkStub> {
+    private DlinkStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected DlinkStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new DlinkStub(channel, callOptions);
+    }
+
+    /**
+     * <pre>
+     * Sends a greeting
+     * </pre>
+     */
+    public void sayHello(io.grpc.examples.dlink.HelloRequest request,
+        io.grpc.stub.StreamObserver<io.grpc.examples.dlink.HelloReply> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getSayHelloMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * If the requested service is unknown, the call will fail with status
+     * NOT_FOUND.
+     * </pre>
+     */
+    public void check(io.grpc.examples.dlink.HealthCheckRequest request,
+        io.grpc.stub.StreamObserver<io.grpc.examples.dlink.HealthCheckResponse> responseObserver) {
+      asyncUnaryCall(
+          getChannel().newCall(getCheckMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Performs a watch for the serving status of the requested service.
+     * The server will immediately send back a message indicating the current
+     * serving status.  It will then subsequently send a new message whenever
+     * the service's serving status changes.
+     * If the requested service is unknown when the call is received, the
+     * server will send a message setting the serving status to
+     * SERVICE_UNKNOWN but will *not* terminate the call.  If at some
+     * future point, the serving status of the service becomes known, the
+     * server will send a new message with the service's serving status.
+     * If the call terminates with status UNIMPLEMENTED, then clients
+     * should assume this method is not supported and should not retry the
+     * call.  If the call terminates with any other status (including OK),
+     * clients should retry the call with appropriate exponential backoff.
+     * </pre>
+     */
+    public void watch(io.grpc.examples.dlink.HealthCheckRequest request,
+        io.grpc.stub.StreamObserver<io.grpc.examples.dlink.HealthCheckResponse> responseObserver) {
+      asyncServerStreamingCall(
+          getChannel().newCall(getWatchMethod(), getCallOptions()), request, responseObserver);
+    }
+  }
+
+  /**
+   * <pre>
+   * The dlink service definition.
+   * </pre>
+   */
+  public static final class DlinkBlockingStub extends io.grpc.stub.AbstractBlockingStub<DlinkBlockingStub> {
+    private DlinkBlockingStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected DlinkBlockingStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new DlinkBlockingStub(channel, callOptions);
+    }
+
+    /**
+     * <pre>
+     * Sends a greeting
+     * </pre>
+     */
+    public io.grpc.examples.dlink.HelloReply sayHello(io.grpc.examples.dlink.HelloRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getSayHelloMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * If the requested service is unknown, the call will fail with status
+     * NOT_FOUND.
+     * </pre>
+     */
+    public io.grpc.examples.dlink.HealthCheckResponse check(io.grpc.examples.dlink.HealthCheckRequest request) {
+      return blockingUnaryCall(
+          getChannel(), getCheckMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Performs a watch for the serving status of the requested service.
+     * The server will immediately send back a message indicating the current
+     * serving status.  It will then subsequently send a new message whenever
+     * the service's serving status changes.
+     * If the requested service is unknown when the call is received, the
+     * server will send a message setting the serving status to
+     * SERVICE_UNKNOWN but will *not* terminate the call.  If at some
+     * future point, the serving status of the service becomes known, the
+     * server will send a new message with the service's serving status.
+     * If the call terminates with status UNIMPLEMENTED, then clients
+     * should assume this method is not supported and should not retry the
+     * call.  If the call terminates with any other status (including OK),
+     * clients should retry the call with appropriate exponential backoff.
+     * </pre>
+     */
+    public java.util.Iterator<io.grpc.examples.dlink.HealthCheckResponse> watch(
+        io.grpc.examples.dlink.HealthCheckRequest request) {
+      return blockingServerStreamingCall(
+          getChannel(), getWatchMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   * <pre>
+   * The dlink service definition.
+   * </pre>
+   */
+  public static final class DlinkFutureStub extends io.grpc.stub.AbstractFutureStub<DlinkFutureStub> {
+    private DlinkFutureStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected DlinkFutureStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new DlinkFutureStub(channel, callOptions);
+    }
+
+    /**
+     * <pre>
+     * Sends a greeting
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<io.grpc.examples.dlink.HelloReply> sayHello(
+        io.grpc.examples.dlink.HelloRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getSayHelloMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * If the requested service is unknown, the call will fail with status
+     * NOT_FOUND.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<io.grpc.examples.dlink.HealthCheckResponse> check(
+        io.grpc.examples.dlink.HealthCheckRequest request) {
+      return futureUnaryCall(
+          getChannel().newCall(getCheckMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_SAY_HELLO = 0;
+  private static final int METHODID_CHECK = 1;
+  private static final int METHODID_WATCH = 2;
+
+  private static final class MethodHandlers<Req, Resp> implements
+      io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final DlinkImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(DlinkImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_SAY_HELLO:
+          serviceImpl.sayHello((io.grpc.examples.dlink.HelloRequest) request,
+              (io.grpc.stub.StreamObserver<io.grpc.examples.dlink.HelloReply>) responseObserver);
+          break;
+        case METHODID_CHECK:
+          serviceImpl.check((io.grpc.examples.dlink.HealthCheckRequest) request,
+              (io.grpc.stub.StreamObserver<io.grpc.examples.dlink.HealthCheckResponse>) responseObserver);
+          break;
+        case METHODID_WATCH:
+          serviceImpl.watch((io.grpc.examples.dlink.HealthCheckRequest) request,
+              (io.grpc.stub.StreamObserver<io.grpc.examples.dlink.HealthCheckResponse>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private static abstract class DlinkBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier, io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    DlinkBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return io.grpc.examples.dlink.DlinkProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Dlink");
+    }
+  }
+
+  private static final class DlinkFileDescriptorSupplier
+      extends DlinkBaseDescriptorSupplier {
+    DlinkFileDescriptorSupplier() {}
+  }
+
+  private static final class DlinkMethodDescriptorSupplier
+      extends DlinkBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    DlinkMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (DlinkGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor = result = io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+              .setSchemaDescriptor(new DlinkFileDescriptorSupplier())
+              .addMethod(getSayHelloMethod())
+              .addMethod(getCheckMethod())
+              .addMethod(getWatchMethod())
+              .build();
+        }
+      }
+    }
+    return result;
+  }
+}

apps/dgiot_atomgit/priv/example/java/src/main/java/io/grpc/examples/dlink/DlinkProto.java

@@ -0,0 +1,92 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: dlink.proto
+
+package io.grpc.examples.dlink;
+
+public final class DlinkProto {
+  private DlinkProto() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_dgiot_HelloRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_dgiot_HelloRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_dgiot_HelloReply_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_dgiot_HelloReply_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_dgiot_HealthCheckRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_dgiot_HealthCheckRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_dgiot_HealthCheckResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_dgiot_HealthCheckResponse_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\013dlink.proto\022\005dgiot\"\034\n\014HelloRequest\022\014\n\004" +
+      "name\030\001 \001(\t\"\035\n\nHelloReply\022\017\n\007message\030\001 \001(" +
+      "\t\"%\n\022HealthCheckRequest\022\017\n\007service\030\001 \001(\t" +
+      "\"\240\001\n\023HealthCheckResponse\0228\n\006status\030\001 \001(\016" +
+      "2(.dgiot.HealthCheckResponse.ServingStat" +
+      "us\"O\n\rServingStatus\022\013\n\007UNKNOWN\020\000\022\013\n\007SERV" +
+      "ING\020\001\022\017\n\013NOT_SERVING\020\002\022\023\n\017SERVICE_UNKNOW" +
+      "N\020\0032\277\001\n\005Dlink\0224\n\010SayHello\022\023.dgiot.HelloR" +
+      "equest\032\021.dgiot.HelloReply\"\000\022>\n\005Check\022\031.d" +
+      "giot.HealthCheckRequest\032\032.dgiot.HealthCh" +
+      "eckResponse\022@\n\005Watch\022\031.dgiot.HealthCheck" +
+      "Request\032\032.dgiot.HealthCheckResponse0\001B.\n" +
+      "\026io.grpc.examples.dlinkB\nDlinkProtoP\001\242\002\005" +
+      "dlinkb\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+        });
+    internal_static_dgiot_HelloRequest_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_dgiot_HelloRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_dgiot_HelloRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_dgiot_HelloReply_descriptor =
+      getDescriptor().getMessageTypes().get(1);
+    internal_static_dgiot_HelloReply_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_dgiot_HelloReply_descriptor,
+        new java.lang.String[] { "Message", });
+    internal_static_dgiot_HealthCheckRequest_descriptor =
+      getDescriptor().getMessageTypes().get(2);
+    internal_static_dgiot_HealthCheckRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_dgiot_HealthCheckRequest_descriptor,
+        new java.lang.String[] { "Service", });
+    internal_static_dgiot_HealthCheckResponse_descriptor =
+      getDescriptor().getMessageTypes().get(3);
+    internal_static_dgiot_HealthCheckResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_dgiot_HealthCheckResponse_descriptor,
+        new java.lang.String[] { "Status", });
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

apps/dgiot_atomgit/priv/example/java/src/main/java/io/grpc/examples/dlink/HealthCheckRequest.java

@@ -0,0 +1,557 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: dlink.proto
+
+package io.grpc.examples.dlink;
+
+/**
+ * Protobuf type {@code dgiot.HealthCheckRequest}
+ */
+public final class HealthCheckRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:dgiot.HealthCheckRequest)
+    HealthCheckRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use HealthCheckRequest.newBuilder() to construct.
+  private HealthCheckRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private HealthCheckRequest() {
+    service_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new HealthCheckRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private HealthCheckRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            service_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HealthCheckRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HealthCheckRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            io.grpc.examples.dlink.HealthCheckRequest.class, io.grpc.examples.dlink.HealthCheckRequest.Builder.class);
+  }
+
+  public static final int SERVICE_FIELD_NUMBER = 1;
+  private volatile java.lang.Object service_;
+  /**
+   * <code>string service = 1;</code>
+   * @return The service.
+   */
+  @java.lang.Override
+  public java.lang.String getService() {
+    java.lang.Object ref = service_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      service_ = s;
+      return s;
+    }
+  }
+  /**
+   * <code>string service = 1;</code>
+   * @return The bytes for service.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getServiceBytes() {
+    java.lang.Object ref = service_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      service_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(service_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, service_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(service_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, service_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof io.grpc.examples.dlink.HealthCheckRequest)) {
+      return super.equals(obj);
+    }
+    io.grpc.examples.dlink.HealthCheckRequest other = (io.grpc.examples.dlink.HealthCheckRequest) obj;
+
+    if (!getService()
+        .equals(other.getService())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + SERVICE_FIELD_NUMBER;
+    hash = (53 * hash) + getService().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static io.grpc.examples.dlink.HealthCheckRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static io.grpc.examples.dlink.HealthCheckRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(io.grpc.examples.dlink.HealthCheckRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * Protobuf type {@code dgiot.HealthCheckRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:dgiot.HealthCheckRequest)
+      io.grpc.examples.dlink.HealthCheckRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HealthCheckRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HealthCheckRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              io.grpc.examples.dlink.HealthCheckRequest.class, io.grpc.examples.dlink.HealthCheckRequest.Builder.class);
+    }
+
+    // Construct using io.grpc.examples.dlink.HealthCheckRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      service_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HealthCheckRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public io.grpc.examples.dlink.HealthCheckRequest getDefaultInstanceForType() {
+      return io.grpc.examples.dlink.HealthCheckRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public io.grpc.examples.dlink.HealthCheckRequest build() {
+      io.grpc.examples.dlink.HealthCheckRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public io.grpc.examples.dlink.HealthCheckRequest buildPartial() {
+      io.grpc.examples.dlink.HealthCheckRequest result = new io.grpc.examples.dlink.HealthCheckRequest(this);
+      result.service_ = service_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof io.grpc.examples.dlink.HealthCheckRequest) {
+        return mergeFrom((io.grpc.examples.dlink.HealthCheckRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(io.grpc.examples.dlink.HealthCheckRequest other) {
+      if (other == io.grpc.examples.dlink.HealthCheckRequest.getDefaultInstance()) return this;
+      if (!other.getService().isEmpty()) {
+        service_ = other.service_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      io.grpc.examples.dlink.HealthCheckRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (io.grpc.examples.dlink.HealthCheckRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object service_ = "";
+    /**
+     * <code>string service = 1;</code>
+     * @return The service.
+     */
+    public java.lang.String getService() {
+      java.lang.Object ref = service_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        service_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <code>string service = 1;</code>
+     * @return The bytes for service.
+     */
+    public com.google.protobuf.ByteString
+        getServiceBytes() {
+      java.lang.Object ref = service_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        service_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string service = 1;</code>
+     * @param value The service to set.
+     * @return This builder for chaining.
+     */
+    public Builder setService(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      service_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string service = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearService() {
+      
+      service_ = getDefaultInstance().getService();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string service = 1;</code>
+     * @param value The bytes for service to set.
+     * @return This builder for chaining.
+     */
+    public Builder setServiceBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      service_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:dgiot.HealthCheckRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:dgiot.HealthCheckRequest)
+  private static final io.grpc.examples.dlink.HealthCheckRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new io.grpc.examples.dlink.HealthCheckRequest();
+  }
+
+  public static io.grpc.examples.dlink.HealthCheckRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<HealthCheckRequest>
+      PARSER = new com.google.protobuf.AbstractParser<HealthCheckRequest>() {
+    @java.lang.Override
+    public HealthCheckRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new HealthCheckRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<HealthCheckRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<HealthCheckRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public io.grpc.examples.dlink.HealthCheckRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+

apps/dgiot_atomgit/priv/example/java/src/main/java/io/grpc/examples/dlink/HealthCheckRequestOrBuilder.java

@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: dlink.proto
+
+package io.grpc.examples.dlink;
+
+public interface HealthCheckRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:dgiot.HealthCheckRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string service = 1;</code>
+   * @return The service.
+   */
+  java.lang.String getService();
+  /**
+   * <code>string service = 1;</code>
+   * @return The bytes for service.
+   */
+  com.google.protobuf.ByteString
+      getServiceBytes();
+}

apps/dgiot_atomgit/priv/example/java/src/main/java/io/grpc/examples/dlink/HealthCheckResponse.java

@@ -0,0 +1,649 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: dlink.proto
+
+package io.grpc.examples.dlink;
+
+/**
+ * Protobuf type {@code dgiot.HealthCheckResponse}
+ */
+public final class HealthCheckResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:dgiot.HealthCheckResponse)
+    HealthCheckResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use HealthCheckResponse.newBuilder() to construct.
+  private HealthCheckResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private HealthCheckResponse() {
+    status_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new HealthCheckResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private HealthCheckResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 8: {
+            int rawValue = input.readEnum();
+
+            status_ = rawValue;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HealthCheckResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HealthCheckResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            io.grpc.examples.dlink.HealthCheckResponse.class, io.grpc.examples.dlink.HealthCheckResponse.Builder.class);
+  }
+
+  /**
+   * Protobuf enum {@code dgiot.HealthCheckResponse.ServingStatus}
+   */
+  public enum ServingStatus
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <code>UNKNOWN = 0;</code>
+     */
+    UNKNOWN(0),
+    /**
+     * <code>SERVING = 1;</code>
+     */
+    SERVING(1),
+    /**
+     * <code>NOT_SERVING = 2;</code>
+     */
+    NOT_SERVING(2),
+    /**
+     * <pre>
+     * Used only by the Watch method.
+     * </pre>
+     *
+     * <code>SERVICE_UNKNOWN = 3;</code>
+     */
+    SERVICE_UNKNOWN(3),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <code>UNKNOWN = 0;</code>
+     */
+    public static final int UNKNOWN_VALUE = 0;
+    /**
+     * <code>SERVING = 1;</code>
+     */
+    public static final int SERVING_VALUE = 1;
+    /**
+     * <code>NOT_SERVING = 2;</code>
+     */
+    public static final int NOT_SERVING_VALUE = 2;
+    /**
+     * <pre>
+     * Used only by the Watch method.
+     * </pre>
+     *
+     * <code>SERVICE_UNKNOWN = 3;</code>
+     */
+    public static final int SERVICE_UNKNOWN_VALUE = 3;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static ServingStatus valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static ServingStatus forNumber(int value) {
+      switch (value) {
+        case 0: return UNKNOWN;
+        case 1: return SERVING;
+        case 2: return NOT_SERVING;
+        case 3: return SERVICE_UNKNOWN;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<ServingStatus>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        ServingStatus> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<ServingStatus>() {
+            public ServingStatus findValueByNumber(int number) {
+              return ServingStatus.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return io.grpc.examples.dlink.HealthCheckResponse.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final ServingStatus[] VALUES = values();
+
+    public static ServingStatus valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private ServingStatus(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:dgiot.HealthCheckResponse.ServingStatus)
+  }
+
+  public static final int STATUS_FIELD_NUMBER = 1;
+  private int status_;
+  /**
+   * <code>.dgiot.HealthCheckResponse.ServingStatus status = 1;</code>
+   * @return The enum numeric value on the wire for status.
+   */
+  @java.lang.Override public int getStatusValue() {
+    return status_;
+  }
+  /**
+   * <code>.dgiot.HealthCheckResponse.ServingStatus status = 1;</code>
+   * @return The status.
+   */
+  @java.lang.Override public io.grpc.examples.dlink.HealthCheckResponse.ServingStatus getStatus() {
+    @SuppressWarnings("deprecation")
+    io.grpc.examples.dlink.HealthCheckResponse.ServingStatus result = io.grpc.examples.dlink.HealthCheckResponse.ServingStatus.valueOf(status_);
+    return result == null ? io.grpc.examples.dlink.HealthCheckResponse.ServingStatus.UNRECOGNIZED : result;
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (status_ != io.grpc.examples.dlink.HealthCheckResponse.ServingStatus.UNKNOWN.getNumber()) {
+      output.writeEnum(1, status_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (status_ != io.grpc.examples.dlink.HealthCheckResponse.ServingStatus.UNKNOWN.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeEnumSize(1, status_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof io.grpc.examples.dlink.HealthCheckResponse)) {
+      return super.equals(obj);
+    }
+    io.grpc.examples.dlink.HealthCheckResponse other = (io.grpc.examples.dlink.HealthCheckResponse) obj;
+
+    if (status_ != other.status_) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + STATUS_FIELD_NUMBER;
+    hash = (53 * hash) + status_;
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static io.grpc.examples.dlink.HealthCheckResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HealthCheckResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HealthCheckResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HealthCheckResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HealthCheckResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HealthCheckResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HealthCheckResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static io.grpc.examples.dlink.HealthCheckResponse parseFrom(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+  public static io.grpc.examples.dlink.HealthCheckResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
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+  public static io.grpc.examples.dlink.HealthCheckResponse parseDelimitedFrom(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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+  public static io.grpc.examples.dlink.HealthCheckResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static io.grpc.examples.dlink.HealthCheckResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(io.grpc.examples.dlink.HealthCheckResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
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+  /**
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+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:dgiot.HealthCheckResponse)
+      io.grpc.examples.dlink.HealthCheckResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HealthCheckResponse_descriptor;
+    }
+
+    @java.lang.Override
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+
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+    private Builder() {
+      maybeForceBuilderInitialization();
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+
+    @java.lang.Override
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+      io.grpc.examples.dlink.HealthCheckResponse result = buildPartial();
+      if (!result.isInitialized()) {
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+
+    @java.lang.Override
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+      io.grpc.examples.dlink.HealthCheckResponse result = new io.grpc.examples.dlink.HealthCheckResponse(this);
+      result.status_ = status_;
+      onBuilt();
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+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
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+    @java.lang.Override
+    public Builder clearOneof(
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+      return super.clearOneof(oneof);
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+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof io.grpc.examples.dlink.HealthCheckResponse) {
+        return mergeFrom((io.grpc.examples.dlink.HealthCheckResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(io.grpc.examples.dlink.HealthCheckResponse other) {
+      if (other == io.grpc.examples.dlink.HealthCheckResponse.getDefaultInstance()) return this;
+      if (other.status_ != 0) {
+        setStatusValue(other.getStatusValue());
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
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+
+    @java.lang.Override
+    public final boolean isInitialized() {
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+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      io.grpc.examples.dlink.HealthCheckResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (io.grpc.examples.dlink.HealthCheckResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
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+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private int status_ = 0;
+    /**
+     * <code>.dgiot.HealthCheckResponse.ServingStatus status = 1;</code>
+     * @return The enum numeric value on the wire for status.
+     */
+    @java.lang.Override public int getStatusValue() {
+      return status_;
+    }
+    /**
+     * <code>.dgiot.HealthCheckResponse.ServingStatus status = 1;</code>
+     * @param value The enum numeric value on the wire for status to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStatusValue(int value) {
+      
+      status_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>.dgiot.HealthCheckResponse.ServingStatus status = 1;</code>
+     * @return The status.
+     */
+    @java.lang.Override
+    public io.grpc.examples.dlink.HealthCheckResponse.ServingStatus getStatus() {
+      @SuppressWarnings("deprecation")
+      io.grpc.examples.dlink.HealthCheckResponse.ServingStatus result = io.grpc.examples.dlink.HealthCheckResponse.ServingStatus.valueOf(status_);
+      return result == null ? io.grpc.examples.dlink.HealthCheckResponse.ServingStatus.UNRECOGNIZED : result;
+    }
+    /**
+     * <code>.dgiot.HealthCheckResponse.ServingStatus status = 1;</code>
+     * @param value The status to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStatus(io.grpc.examples.dlink.HealthCheckResponse.ServingStatus value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      
+      status_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>.dgiot.HealthCheckResponse.ServingStatus status = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearStatus() {
+      
+      status_ = 0;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
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+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:dgiot.HealthCheckResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:dgiot.HealthCheckResponse)
+  private static final io.grpc.examples.dlink.HealthCheckResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new io.grpc.examples.dlink.HealthCheckResponse();
+  }
+
+  public static io.grpc.examples.dlink.HealthCheckResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<HealthCheckResponse>
+      PARSER = new com.google.protobuf.AbstractParser<HealthCheckResponse>() {
+    @java.lang.Override
+    public HealthCheckResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new HealthCheckResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<HealthCheckResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<HealthCheckResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public io.grpc.examples.dlink.HealthCheckResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+

apps/dgiot_atomgit/priv/example/java/src/main/java/io/grpc/examples/dlink/HealthCheckResponseOrBuilder.java

@@ -0,0 +1,20 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: dlink.proto
+
+package io.grpc.examples.dlink;
+
+public interface HealthCheckResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:dgiot.HealthCheckResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>.dgiot.HealthCheckResponse.ServingStatus status = 1;</code>
+   * @return The enum numeric value on the wire for status.
+   */
+  int getStatusValue();
+  /**
+   * <code>.dgiot.HealthCheckResponse.ServingStatus status = 1;</code>
+   * @return The status.
+   */
+  io.grpc.examples.dlink.HealthCheckResponse.ServingStatus getStatus();
+}

apps/dgiot_atomgit/priv/example/java/src/main/java/io/grpc/examples/dlink/HelloReply.java

@@ -0,0 +1,565 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: dlink.proto
+
+package io.grpc.examples.dlink;
+
+/**
+ * <pre>
+ * The response message containing the greetings
+ * </pre>
+ *
+ * Protobuf type {@code dgiot.HelloReply}
+ */
+public final class HelloReply extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:dgiot.HelloReply)
+    HelloReplyOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use HelloReply.newBuilder() to construct.
+  private HelloReply(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
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+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
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+  }
+
+  @java.lang.Override
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+  getUnknownFields() {
+    return this.unknownFields;
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+  private HelloReply(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+    this();
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+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
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+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static io.grpc.examples.dlink.HelloReply parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(io.grpc.examples.dlink.HelloReply prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * The response message containing the greetings
+   * </pre>
+   *
+   * Protobuf type {@code dgiot.HelloReply}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:dgiot.HelloReply)
+      io.grpc.examples.dlink.HelloReplyOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HelloReply_descriptor;
+    }
+
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+        internalGetFieldAccessorTable() {
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+    }
+
+    // Construct using io.grpc.examples.dlink.HelloReply.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
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+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
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+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      message_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HelloReply_descriptor;
+    }
+
+    @java.lang.Override
+    public io.grpc.examples.dlink.HelloReply getDefaultInstanceForType() {
+      return io.grpc.examples.dlink.HelloReply.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public io.grpc.examples.dlink.HelloReply build() {
+      io.grpc.examples.dlink.HelloReply result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public io.grpc.examples.dlink.HelloReply buildPartial() {
+      io.grpc.examples.dlink.HelloReply result = new io.grpc.examples.dlink.HelloReply(this);
+      result.message_ = message_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof io.grpc.examples.dlink.HelloReply) {
+        return mergeFrom((io.grpc.examples.dlink.HelloReply)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(io.grpc.examples.dlink.HelloReply other) {
+      if (other == io.grpc.examples.dlink.HelloReply.getDefaultInstance()) return this;
+      if (!other.getMessage().isEmpty()) {
+        message_ = other.message_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      io.grpc.examples.dlink.HelloReply parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (io.grpc.examples.dlink.HelloReply) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object message_ = "";
+    /**
+     * <code>string message = 1;</code>
+     * @return The message.
+     */
+    public java.lang.String getMessage() {
+      java.lang.Object ref = message_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        message_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <code>string message = 1;</code>
+     * @return The bytes for message.
+     */
+    public com.google.protobuf.ByteString
+        getMessageBytes() {
+      java.lang.Object ref = message_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        message_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <code>string message = 1;</code>
+     * @param value The message to set.
+     * @return This builder for chaining.
+     */
+    public Builder setMessage(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      message_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string message = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearMessage() {
+      
+      message_ = getDefaultInstance().getMessage();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string message = 1;</code>
+     * @param value The bytes for message to set.
+     * @return This builder for chaining.
+     */
+    public Builder setMessageBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      message_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:dgiot.HelloReply)
+  }
+
+  // @@protoc_insertion_point(class_scope:dgiot.HelloReply)
+  private static final io.grpc.examples.dlink.HelloReply DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new io.grpc.examples.dlink.HelloReply();
+  }
+
+  public static io.grpc.examples.dlink.HelloReply getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<HelloReply>
+      PARSER = new com.google.protobuf.AbstractParser<HelloReply>() {
+    @java.lang.Override
+    public HelloReply parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new HelloReply(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<HelloReply> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<HelloReply> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public io.grpc.examples.dlink.HelloReply getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+

apps/dgiot_atomgit/priv/example/java/src/main/java/io/grpc/examples/dlink/HelloReplyOrBuilder.java

@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: dlink.proto
+
+package io.grpc.examples.dlink;
+
+public interface HelloReplyOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:dgiot.HelloReply)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string message = 1;</code>
+   * @return The message.
+   */
+  java.lang.String getMessage();
+  /**
+   * <code>string message = 1;</code>
+   * @return The bytes for message.
+   */
+  com.google.protobuf.ByteString
+      getMessageBytes();
+}

apps/dgiot_atomgit/priv/example/java/src/main/java/io/grpc/examples/dlink/HelloRequest.java

@@ -0,0 +1,565 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: dlink.proto
+
+package io.grpc.examples.dlink;
+
+/**
+ * <pre>
+ * The request message containing the user's name.
+ * </pre>
+ *
+ * Protobuf type {@code dgiot.HelloRequest}
+ */
+public final class HelloRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:dgiot.HelloRequest)
+    HelloRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use HelloRequest.newBuilder() to construct.
+  private HelloRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
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+  private HelloRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new HelloRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private HelloRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
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+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+
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+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HelloRequest_descriptor;
+  }
+
+  @java.lang.Override
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+      internalGetFieldAccessorTable() {
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+
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+  private volatile java.lang.Object name_;
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+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  @java.lang.Override
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+   */
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+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
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+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
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+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
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+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HelloRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HelloRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HelloRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HelloRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static io.grpc.examples.dlink.HelloRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HelloRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static io.grpc.examples.dlink.HelloRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static io.grpc.examples.dlink.HelloRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static io.grpc.examples.dlink.HelloRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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+  public static io.grpc.examples.dlink.HelloRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static io.grpc.examples.dlink.HelloRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(io.grpc.examples.dlink.HelloRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * The request message containing the user's name.
+   * </pre>
+   *
+   * Protobuf type {@code dgiot.HelloRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:dgiot.HelloRequest)
+      io.grpc.examples.dlink.HelloRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HelloRequest_descriptor;
+    }
+
+    @java.lang.Override
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+        internalGetFieldAccessorTable() {
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+              io.grpc.examples.dlink.HelloRequest.class, io.grpc.examples.dlink.HelloRequest.Builder.class);
+    }
+
+    // Construct using io.grpc.examples.dlink.HelloRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
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+      if (com.google.protobuf.GeneratedMessageV3
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+    @java.lang.Override
+    public Builder clear() {
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+      name_ = "";
+
+      return this;
+    }
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+    @java.lang.Override
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+        getDescriptorForType() {
+      return io.grpc.examples.dlink.DlinkProto.internal_static_dgiot_HelloRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public io.grpc.examples.dlink.HelloRequest getDefaultInstanceForType() {
+      return io.grpc.examples.dlink.HelloRequest.getDefaultInstance();
+    }
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+    @java.lang.Override
+    public io.grpc.examples.dlink.HelloRequest build() {
+      io.grpc.examples.dlink.HelloRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
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+      return result;
+    }
+
+    @java.lang.Override
+    public io.grpc.examples.dlink.HelloRequest buildPartial() {
+      io.grpc.examples.dlink.HelloRequest result = new io.grpc.examples.dlink.HelloRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
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+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
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+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
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+      if (other instanceof io.grpc.examples.dlink.HelloRequest) {
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+    public Builder mergeFrom(io.grpc.examples.dlink.HelloRequest other) {
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+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <code>string name = 1;</code>
+     * @return The name.
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+      java.lang.Object ref = name_;
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+      if (ref instanceof String) {
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+        return b;
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+    /**
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:dgiot.HelloRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:dgiot.HelloRequest)
+  private static final io.grpc.examples.dlink.HelloRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new io.grpc.examples.dlink.HelloRequest();
+  }
+
+  public static io.grpc.examples.dlink.HelloRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<HelloRequest>
+      PARSER = new com.google.protobuf.AbstractParser<HelloRequest>() {
+    @java.lang.Override
+    public HelloRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new HelloRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<HelloRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<HelloRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public io.grpc.examples.dlink.HelloRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+

apps/dgiot_atomgit/priv/example/java/src/main/java/io/grpc/examples/dlink/HelloRequestOrBuilder.java

@@ -0,0 +1,21 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: dlink.proto
+
+package io.grpc.examples.dlink;
+
+public interface HelloRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:dgiot.HelloRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}

apps/dgiot_atomgit/priv/example/java/src/main/proto/dlink.proto

@@ -0,0 +1,64 @@
+// copy from: https://grpc.io/docs/what-is-grpc/introduction/
+
+
+syntax = "proto3";
+
+option java_multiple_files = true;
+option java_package = "io.grpc.examples.dlink";
+option java_outer_classname = "DlinkProto";
+option objc_class_prefix = "dlink";
+
+package dgiot;
+
+// The dlink service definition.
+service Dlink {
+  // Sends a greeting
+  rpc SayHello (HelloRequest) returns (HelloReply) {}
+
+  // If the requested service is unknown, the call will fail with status
+  // NOT_FOUND.
+  rpc Check(HealthCheckRequest) returns (HealthCheckResponse);
+
+  // Performs a watch for the serving status of the requested service.
+  // The server will immediately send back a message indicating the current
+  // serving status.  It will then subsequently send a new message whenever
+  // the service's serving status changes.
+  //
+  // If the requested service is unknown when the call is received, the
+  // server will send a message setting the serving status to
+  // SERVICE_UNKNOWN but will *not* terminate the call.  If at some
+  // future point, the serving status of the service becomes known, the
+  // server will send a new message with the service's serving status.
+  //
+  // If the call terminates with status UNIMPLEMENTED, then clients
+  // should assume this method is not supported and should not retry the
+  // call.  If the call terminates with any other status (including OK),
+  // clients should retry the call with appropriate exponential backoff.
+  rpc Watch(HealthCheckRequest) returns (stream HealthCheckResponse);
+
+}
+
+// The request message containing the user's name.
+message HelloRequest {
+  string name = 1;
+}
+
+// The response message containing the greetings
+message HelloReply {
+  string message = 1;
+}
+
+
+message HealthCheckRequest {
+  string service = 1;
+}
+
+message HealthCheckResponse {
+  enum ServingStatus {
+    UNKNOWN = 0;
+    SERVING = 1;
+    NOT_SERVING = 2;
+    SERVICE_UNKNOWN = 3;  // Used only by the Watch method.
+  }
+  ServingStatus status = 1;
+}

apps/dgiot_atomgit/priv/example/java/src/main/resources/application-dev.properties

@@ -0,0 +1,12 @@
+spring.application.name=DgIoT_Grpc
+logging.config=classpath:logback.xml
+
+
+#################################### please modify config below #####################################
+
+server.port=50051
+
+
+
+
+

apps/dgiot_atomgit/priv/example/java/src/main/resources/logback.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<configuration scan="true" scanPeriod="120 seconds">
+
+    <property name="log.base" value="logs"/>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>
+                %date{yyyy-MM-dd HH:mm:ss.SSS} [%level] %logger{96}:[%line] - %msg%n
+            </pattern>
+            <charset>UTF-8</charset>
+        </encoder>
+    </appender>
+
+    <appender name="LOGFILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${log.base}/dbapi-standalone.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
+            <fileNamePattern>${log.base}/dbapi-standalone.%d{yyyy-MM-dd}.%i.log</fileNamePattern>
+            <maxHistory>168</maxHistory>
+            <maxFileSize>200MB</maxFileSize>
+        </rollingPolicy>
+        <encoder>
+            <pattern>
+                %date{yyyy-MM-dd HH:mm:ss.SSS} [%level] %logger{96}:[%line] - %msg%n
+            </pattern>
+            <charset>UTF-8</charset>
+        </encoder>
+    </appender>
+
+    <logger name="org.apache.zookeeper" level="WARN"/>
+    <logger name="org.apache.hbase" level="WARN"/>
+    <logger name="org.apache.hadoop" level="WARN"/>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT"/>
+        <appender-ref ref="LOGFILE"/>
+    </root>
+
+</configuration>

apps/dgiot_atomgit/priv/example/java/src/test/java/com/dgiot/dataserver/test/TestClient.java

@@ -0,0 +1,60 @@
+package com.dgiot.dataserver.test;
+
+import io.grpc.ManagedChannel;
+import io.grpc.ManagedChannelBuilder;
+import io.grpc.examples.dlink.DlinkGrpc;
+import io.grpc.examples.dlink.HelloRequest;
+import io.grpc.examples.dlink.HelloReply;
+import io.grpc.examples.dlink.HealthCheckRequest;
+import io.grpc.examples.dlink.HealthCheckResponse;
+import java.util.concurrent.TimeUnit;
+
+import java.util.Iterator;
+
+/**
+ * 客户端
+ */
+public class TestClient {
+    private final ManagedChannel channel;
+    private final DlinkGrpc.DlinkBlockingStub blockingStub;
+    private static final String host="127.0.0.1";
+    private static final int ip=50051;
+    public TestClient(String host,int port){
+        //usePlaintext表示明文传输，否则需要配置ssl
+        //channel  表示通信通道
+//        channel= ManagedChannelBuilder.forAddress(host, port).usePlaintext(true).build();
+        channel = ManagedChannelBuilder.forAddress(host, port).usePlaintext().build();
+        //存根
+        blockingStub=DlinkGrpc.newBlockingStub(channel);
+    }
+    public void shutdown() throws InterruptedException {
+        channel.shutdown().awaitTermination(5, TimeUnit.SECONDS);
+    }
+
+    public void  testSayHello(String name){
+        HelloRequest request=HelloRequest.newBuilder().setName(name).build();
+        HelloReply response=blockingStub.sayHello(request);
+        System.out.println(response.getMessage());
+    }
+
+    public void  testCheck(String name){
+        HealthCheckRequest request=HealthCheckRequest.newBuilder().build();
+        HealthCheckResponse response=blockingStub.check(request);
+        System.out.println(response.getStatus().toString());
+    }
+
+    public void  testWatch(String name){
+        HealthCheckRequest request=HealthCheckRequest.newBuilder().build();
+        Iterator<HealthCheckResponse> response =blockingStub.watch(request);
+        while (response.hasNext()) {
+            System.out.println(response.next());
+        }
+    }
+
+    public static void main(String[] args) {
+        TestClient client=new TestClient(host,ip);
+        for (int i=0;i<=5;i++){
+            client.testSayHello("<<<<<result>>>>>:"+i);
+        }
+    }
+}

apps/dgiot_atomgit/priv/example/php/GreeterClient.php

@@ -0,0 +1,50 @@
+<?php
+// GENERATED CODE -- DO NOT EDIT!
+
+// Original file comments:
+// Copyright 2015 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+namespace dlink;
+
+/**
+ * The greeting service definition.
+ */
+class GreeterClient extends \Grpc\BaseStub {
+
+    /**
+     * @param string $hostname hostname
+     * @param array $opts channel options
+     * @param \Grpc\Channel $channel (optional) re-use channel object
+     */
+    public function __construct($hostname, $opts, $channel = null) {
+        parent::__construct($hostname, $opts, $channel);
+    }
+
+    /**
+     * Sends a greeting
+     * @param \dlink\HelloRequest $argument input argument
+     * @param array $metadata metadata
+     * @param array $options call options
+     * @return \Grpc\UnaryCall
+     */
+    public function SayHello(\dlink\HelloRequest $argument,
+      $metadata = [], $options = []) {
+        return $this->_simpleRequest('/dlink.Greeter/SayHello',
+        $argument,
+        ['\dlink\HelloReply', 'decode'],
+        $metadata, $options);
+    }
+
+}

apps/dgiot_atomgit/priv/example/php/GreeterStub.php

@@ -0,0 +1,58 @@
+<?php
+// GENERATED CODE -- DO NOT EDIT!
+
+// Original file comments:
+// Copyright 2015 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+namespace dlink;
+
+/**
+ * The greeting service definition.
+ */
+class GreeterStub {
+
+    /**
+     * Sends a greeting
+     * @param \Helloworld\HelloRequest $request client request
+     * @param \Grpc\ServerContext $context server request context
+     * @return \Helloworld\HelloReply for response data, null if if error occured
+     *     initial metadata (if any) and status (if not ok) should be set to $context
+     */
+    public function SayHello(
+        \dlink\HelloRequest $request,
+        \Grpc\ServerContext $context
+    ): ?\dlink\HelloReply {
+        $context->setStatus(\Grpc\Status::unimplemented());
+        return null;
+    }
+
+    /**
+     * Get the method descriptors of the service for server registration
+     *
+     * @return array of \Grpc\MethodDescriptor for the service methods
+     */
+    public final function getMethodDescriptors(): array
+    {
+        return [
+            '/dlink.Greeter/SayHello' => new \Grpc\MethodDescriptor(
+                $this,
+                'SayHello',
+                '\dlink\HelloRequest',
+                \Grpc\MethodDescriptor::UNARY_CALL
+            ),
+        ];
+    }
+
+}

apps/dgiot_atomgit/priv/example/php/HelloReply.php

@@ -0,0 +1,60 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: dlink.proto
+
+namespace Helloworld;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The response message containing the greetings
+ *
+ * Generated from protobuf message <code>dlink.HelloReply</code>
+ */
+class HelloReply extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Generated from protobuf field <code>string message = 1;</code>
+     */
+    protected $message = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $message
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Helloworld::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Generated from protobuf field <code>string message = 1;</code>
+     * @return string
+     */
+    public function getMessage()
+    {
+        return $this->message;
+    }
+
+    /**
+     * Generated from protobuf field <code>string message = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setMessage($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->message = $var;
+
+        return $this;
+    }
+
+}
+

apps/dgiot_atomgit/priv/example/php/HelloRequest.php

@@ -0,0 +1,60 @@
+<?php
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: helloworld.proto
+
+namespace Helloworld;
+
+use Google\Protobuf\Internal\GPBType;
+use Google\Protobuf\Internal\RepeatedField;
+use Google\Protobuf\Internal\GPBUtil;
+
+/**
+ * The request message containing the user's name.
+ *
+ * Generated from protobuf message <code>helloworld.HelloRequest</code>
+ */
+class HelloRequest extends \Google\Protobuf\Internal\Message
+{
+    /**
+     * Generated from protobuf field <code>string name = 1;</code>
+     */
+    protected $name = '';
+
+    /**
+     * Constructor.
+     *
+     * @param array $data {
+     *     Optional. Data for populating the Message object.
+     *
+     *     @type string $name
+     * }
+     */
+    public function __construct($data = NULL) {
+        \GPBMetadata\Helloworld::initOnce();
+        parent::__construct($data);
+    }
+
+    /**
+     * Generated from protobuf field <code>string name = 1;</code>
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Generated from protobuf field <code>string name = 1;</code>
+     * @param string $var
+     * @return $this
+     */
+    public function setName($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->name = $var;
+
+        return $this;
+    }
+
+}
+

apps/dgiot_atomgit/priv/example/python3/dlink_pb2.py

@@ -0,0 +1,275 @@
+# -*- coding: utf-8 -*-
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: dlink.proto
+"""Generated protocol buffer code."""
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import symbol_database as _symbol_database
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+
+
+DESCRIPTOR = _descriptor.FileDescriptor(
+  name='dlink.proto',
+  package='dgiot',
+  syntax='proto3',
+  serialized_options=b'\n\026io.grpc.examples.dlinkB\nDlinkProtoP\001\242\002\005dlink',
+  create_key=_descriptor._internal_create_key,
+  serialized_pb=b'\n\x0b\x64link.proto\x12\x05\x64giot\"\x1c\n\x0cHelloRequest\x12\x0c\n\x04name\x18\x01 \x01(\t\"\x1d\n\nHelloReply\x12\x0f\n\x07message\x18\x01 \x01(\t\"%\n\x12HealthCheckRequest\x12\x0f\n\x07service\x18\x01 \x01(\t\"\xa0\x01\n\x13HealthCheckResponse\x12\x38\n\x06status\x18\x01 \x01(\x0e\x32(.dgiot.HealthCheckResponse.ServingStatus\"O\n\rServingStatus\x12\x0b\n\x07UNKNOWN\x10\x00\x12\x0b\n\x07SERVING\x10\x01\x12\x0f\n\x0bNOT_SERVING\x10\x02\x12\x13\n\x0fSERVICE_UNKNOWN\x10\x03\x32\xbf\x01\n\x05\x44link\x12\x34\n\x08SayHello\x12\x13.dgiot.HelloRequest\x1a\x11.dgiot.HelloReply\"\x00\x12>\n\x05\x43heck\x12\x19.dgiot.HealthCheckRequest\x1a\x1a.dgiot.HealthCheckResponse\x12@\n\x05Watch\x12\x19.dgiot.HealthCheckRequest\x1a\x1a.dgiot.HealthCheckResponse0\x01\x42.\n\x16io.grpc.examples.dlinkB\nDlinkProtoP\x01\xa2\x02\x05\x64linkb\x06proto3'
+)
+
+
+
+_HEALTHCHECKRESPONSE_SERVINGSTATUS = _descriptor.EnumDescriptor(
+  name='ServingStatus',
+  full_name='dgiot.HealthCheckResponse.ServingStatus',
+  filename=None,
+  file=DESCRIPTOR,
+  create_key=_descriptor._internal_create_key,
+  values=[
+    _descriptor.EnumValueDescriptor(
+      name='UNKNOWN', index=0, number=0,
+      serialized_options=None,
+      type=None,
+      create_key=_descriptor._internal_create_key),
+    _descriptor.EnumValueDescriptor(
+      name='SERVING', index=1, number=1,
+      serialized_options=None,
+      type=None,
+      create_key=_descriptor._internal_create_key),
+    _descriptor.EnumValueDescriptor(
+      name='NOT_SERVING', index=2, number=2,
+      serialized_options=None,
+      type=None,
+      create_key=_descriptor._internal_create_key),
+    _descriptor.EnumValueDescriptor(
+      name='SERVICE_UNKNOWN', index=3, number=3,
+      serialized_options=None,
+      type=None,
+      create_key=_descriptor._internal_create_key),
+  ],
+  containing_type=None,
+  serialized_options=None,
+  serialized_start=204,
+  serialized_end=283,
+)
+_sym_db.RegisterEnumDescriptor(_HEALTHCHECKRESPONSE_SERVINGSTATUS)
+
+
+_HELLOREQUEST = _descriptor.Descriptor(
+  name='HelloRequest',
+  full_name='dgiot.HelloRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  create_key=_descriptor._internal_create_key,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='name', full_name='dgiot.HelloRequest.name', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=b"".decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      serialized_options=None, file=DESCRIPTOR,  create_key=_descriptor._internal_create_key),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  serialized_options=None,
+  is_extendable=False,
+  syntax='proto3',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=22,
+  serialized_end=50,
+)
+
+
+_HELLOREPLY = _descriptor.Descriptor(
+  name='HelloReply',
+  full_name='dgiot.HelloReply',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  create_key=_descriptor._internal_create_key,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='message', full_name='dgiot.HelloReply.message', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=b"".decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      serialized_options=None, file=DESCRIPTOR,  create_key=_descriptor._internal_create_key),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  serialized_options=None,
+  is_extendable=False,
+  syntax='proto3',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=52,
+  serialized_end=81,
+)
+
+
+_HEALTHCHECKREQUEST = _descriptor.Descriptor(
+  name='HealthCheckRequest',
+  full_name='dgiot.HealthCheckRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  create_key=_descriptor._internal_create_key,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='service', full_name='dgiot.HealthCheckRequest.service', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=b"".decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      serialized_options=None, file=DESCRIPTOR,  create_key=_descriptor._internal_create_key),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  serialized_options=None,
+  is_extendable=False,
+  syntax='proto3',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=83,
+  serialized_end=120,
+)
+
+
+_HEALTHCHECKRESPONSE = _descriptor.Descriptor(
+  name='HealthCheckResponse',
+  full_name='dgiot.HealthCheckResponse',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  create_key=_descriptor._internal_create_key,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='status', full_name='dgiot.HealthCheckResponse.status', index=0,
+      number=1, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      serialized_options=None, file=DESCRIPTOR,  create_key=_descriptor._internal_create_key),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+    _HEALTHCHECKRESPONSE_SERVINGSTATUS,
+  ],
+  serialized_options=None,
+  is_extendable=False,
+  syntax='proto3',
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=123,
+  serialized_end=283,
+)
+
+_HEALTHCHECKRESPONSE.fields_by_name['status'].enum_type = _HEALTHCHECKRESPONSE_SERVINGSTATUS
+_HEALTHCHECKRESPONSE_SERVINGSTATUS.containing_type = _HEALTHCHECKRESPONSE
+DESCRIPTOR.message_types_by_name['HelloRequest'] = _HELLOREQUEST
+DESCRIPTOR.message_types_by_name['HelloReply'] = _HELLOREPLY
+DESCRIPTOR.message_types_by_name['HealthCheckRequest'] = _HEALTHCHECKREQUEST
+DESCRIPTOR.message_types_by_name['HealthCheckResponse'] = _HEALTHCHECKRESPONSE
+_sym_db.RegisterFileDescriptor(DESCRIPTOR)
+
+HelloRequest = _reflection.GeneratedProtocolMessageType('HelloRequest', (_message.Message,), {
+  'DESCRIPTOR' : _HELLOREQUEST,
+  '__module__' : 'dlink_pb2'
+  # @@protoc_insertion_point(class_scope:dgiot.HelloRequest)
+  })
+_sym_db.RegisterMessage(HelloRequest)
+
+HelloReply = _reflection.GeneratedProtocolMessageType('HelloReply', (_message.Message,), {
+  'DESCRIPTOR' : _HELLOREPLY,
+  '__module__' : 'dlink_pb2'
+  # @@protoc_insertion_point(class_scope:dgiot.HelloReply)
+  })
+_sym_db.RegisterMessage(HelloReply)
+
+HealthCheckRequest = _reflection.GeneratedProtocolMessageType('HealthCheckRequest', (_message.Message,), {
+  'DESCRIPTOR' : _HEALTHCHECKREQUEST,
+  '__module__' : 'dlink_pb2'
+  # @@protoc_insertion_point(class_scope:dgiot.HealthCheckRequest)
+  })
+_sym_db.RegisterMessage(HealthCheckRequest)
+
+HealthCheckResponse = _reflection.GeneratedProtocolMessageType('HealthCheckResponse', (_message.Message,), {
+  'DESCRIPTOR' : _HEALTHCHECKRESPONSE,
+  '__module__' : 'dlink_pb2'
+  # @@protoc_insertion_point(class_scope:dgiot.HealthCheckResponse)
+  })
+_sym_db.RegisterMessage(HealthCheckResponse)
+
+
+DESCRIPTOR._options = None
+
+_DLINK = _descriptor.ServiceDescriptor(
+  name='Dlink',
+  full_name='dgiot.Dlink',
+  file=DESCRIPTOR,
+  index=0,
+  serialized_options=None,
+  create_key=_descriptor._internal_create_key,
+  serialized_start=286,
+  serialized_end=477,
+  methods=[
+  _descriptor.MethodDescriptor(
+    name='SayHello',
+    full_name='dgiot.Dlink.SayHello',
+    index=0,
+    containing_service=None,
+    input_type=_HELLOREQUEST,
+    output_type=_HELLOREPLY,
+    serialized_options=None,
+    create_key=_descriptor._internal_create_key,
+  ),
+  _descriptor.MethodDescriptor(
+    name='Check',
+    full_name='dgiot.Dlink.Check',
+    index=1,
+    containing_service=None,
+    input_type=_HEALTHCHECKREQUEST,
+    output_type=_HEALTHCHECKRESPONSE,
+    serialized_options=None,
+    create_key=_descriptor._internal_create_key,
+  ),
+  _descriptor.MethodDescriptor(
+    name='Watch',
+    full_name='dgiot.Dlink.Watch',
+    index=2,
+    containing_service=None,
+    input_type=_HEALTHCHECKREQUEST,
+    output_type=_HEALTHCHECKRESPONSE,
+    serialized_options=None,
+    create_key=_descriptor._internal_create_key,
+  ),
+])
+_sym_db.RegisterServiceDescriptor(_DLINK)
+
+DESCRIPTOR.services_by_name['Dlink'] = _DLINK
+
+# @@protoc_insertion_point(module_scope)

apps/dgiot_atomgit/priv/example/python3/dlink_pb2_grpc.py

@@ -0,0 +1,153 @@
+# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!
+"""Client and server classes corresponding to protobuf-defined services."""
+import grpc
+
+import dlink_pb2 as dlink__pb2
+
+
+class DlinkStub(object):
+    """The dlink service definition.
+    """
+
+    def __init__(self, channel):
+        """Constructor.
+
+        Args:
+            channel: A grpc.Channel.
+        """
+        self.SayHello = channel.unary_unary(
+                '/dgiot.Dlink/SayHello',
+                request_serializer=dlink__pb2.HelloRequest.SerializeToString,
+                response_deserializer=dlink__pb2.HelloReply.FromString,
+                )
+        self.Check = channel.unary_unary(
+                '/dgiot.Dlink/Check',
+                request_serializer=dlink__pb2.HealthCheckRequest.SerializeToString,
+                response_deserializer=dlink__pb2.HealthCheckResponse.FromString,
+                )
+        self.Watch = channel.unary_stream(
+                '/dgiot.Dlink/Watch',
+                request_serializer=dlink__pb2.HealthCheckRequest.SerializeToString,
+                response_deserializer=dlink__pb2.HealthCheckResponse.FromString,
+                )
+
+
+class DlinkServicer(object):
+    """The dlink service definition.
+    """
+
+    def SayHello(self, request, context):
+        """Sends a greeting
+        """
+        context.set_code(grpc.StatusCode.UNIMPLEMENTED)
+        context.set_details('Method not implemented!')
+        raise NotImplementedError('Method not implemented!')
+
+    def Check(self, request, context):
+        """If the requested service is unknown, the call will fail with status
+        NOT_FOUND.
+        """
+        context.set_code(grpc.StatusCode.UNIMPLEMENTED)
+        context.set_details('Method not implemented!')
+        raise NotImplementedError('Method not implemented!')
+
+    def Watch(self, request, context):
+        """Performs a watch for the serving status of the requested service.
+        The server will immediately send back a message indicating the current
+        serving status.  It will then subsequently send a new message whenever
+        the service's serving status changes.
+
+        If the requested service is unknown when the call is received, the
+        server will send a message setting the serving status to
+        SERVICE_UNKNOWN but will *not* terminate the call.  If at some
+        future point, the serving status of the service becomes known, the
+        server will send a new message with the service's serving status.
+
+        If the call terminates with status UNIMPLEMENTED, then clients
+        should assume this method is not supported and should not retry the
+        call.  If the call terminates with any other status (including OK),
+        clients should retry the call with appropriate exponential backoff.
+        """
+        context.set_code(grpc.StatusCode.UNIMPLEMENTED)
+        context.set_details('Method not implemented!')
+        raise NotImplementedError('Method not implemented!')
+
+
+def add_DlinkServicer_to_server(servicer, server):
+    rpc_method_handlers = {
+            'SayHello': grpc.unary_unary_rpc_method_handler(
+                    servicer.SayHello,
+                    request_deserializer=dlink__pb2.HelloRequest.FromString,
+                    response_serializer=dlink__pb2.HelloReply.SerializeToString,
+            ),
+            'Check': grpc.unary_unary_rpc_method_handler(
+                    servicer.Check,
+                    request_deserializer=dlink__pb2.HealthCheckRequest.FromString,
+                    response_serializer=dlink__pb2.HealthCheckResponse.SerializeToString,
+            ),
+            'Watch': grpc.unary_stream_rpc_method_handler(
+                    servicer.Watch,
+                    request_deserializer=dlink__pb2.HealthCheckRequest.FromString,
+                    response_serializer=dlink__pb2.HealthCheckResponse.SerializeToString,
+            ),
+    }
+    generic_handler = grpc.method_handlers_generic_handler(
+            'dgiot.Dlink', rpc_method_handlers)
+    server.add_generic_rpc_handlers((generic_handler,))
+
+
+ # This class is part of an EXPERIMENTAL API.
+class Dlink(object):
+    """The dlink service definition.
+    """
+
+    @staticmethod
+    def SayHello(request,
+            target,
+            options=(),
+            channel_credentials=None,
+            call_credentials=None,
+            insecure=False,
+            compression=None,
+            wait_for_ready=None,
+            timeout=None,
+            metadata=None):
+        return grpc.experimental.unary_unary(request, target, '/dgiot.Dlink/SayHello',
+            dlink__pb2.HelloRequest.SerializeToString,
+            dlink__pb2.HelloReply.FromString,
+            options, channel_credentials,
+            insecure, call_credentials, compression, wait_for_ready, timeout, metadata)
+
+    @staticmethod
+    def Check(request,
+            target,
+            options=(),
+            channel_credentials=None,
+            call_credentials=None,
+            insecure=False,
+            compression=None,
+            wait_for_ready=None,
+            timeout=None,
+            metadata=None):
+        return grpc.experimental.unary_unary(request, target, '/dgiot.Dlink/Check',
+            dlink__pb2.HealthCheckRequest.SerializeToString,
+            dlink__pb2.HealthCheckResponse.FromString,
+            options, channel_credentials,
+            insecure, call_credentials, compression, wait_for_ready, timeout, metadata)
+
+    @staticmethod
+    def Watch(request,
+            target,
+            options=(),
+            channel_credentials=None,
+            call_credentials=None,
+            insecure=False,
+            compression=None,
+            wait_for_ready=None,
+            timeout=None,
+            metadata=None):
+        return grpc.experimental.unary_stream(request, target, '/dgiot.Dlink/Watch',
+            dlink__pb2.HealthCheckRequest.SerializeToString,
+            dlink__pb2.HealthCheckResponse.FromString,
+            options, channel_credentials,
+            insecure, call_credentials, compression, wait_for_ready, timeout, metadata)

apps/dgiot_atomgit/priv/example/python3/dlink_server.py

@@ -0,0 +1,47 @@
+# Copyright 2015 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""The Python implementation of the GRPC helloworld.Greeter server."""
+import json
+from concurrent import futures
+import logging
+import grpc
+import dlink_pb2
+import dlink_pb2_grpc
+import base64
+import datetime
+
+class Dlink(dlink_pb2_grpc.DlinkServicer):
+
+    def SayHello(self, request, context):
+        print(datetime.datetime.now().strftime('%Y-%m-%d-%H-%M-%S'))
+        print( request.name)
+        print( context)
+        json_request = json.loads(base64.b64decode(request.name).decode("utf-8"))
+        print(json_request)
+        return dlink_pb2.HelloReply(message="parameter received")
+
+
+def serve():
+    server = grpc.server(futures.ThreadPoolExecutor(max_workers=10))
+    dlink_pb2_grpc.add_DlinkServicer_to_server(Dlink(), server)
+    server.add_insecure_port('[::]:30051')
+    server.start()
+    server.wait_for_termination()
+
+
+if __name__ == '__main__':
+    logging.basicConfig()
+    serve()
+
+

apps/dgiot_atomgit/src/dgiot_atomgit.app.src

@@ -1,5 +1,5 @@
 {application, dgiot_atomgit,
-    [{description, "DGIOT ATOMGIT"},
+    [{description, "DGIOT atomgit"},
         {vsn, "4.3.0"},
         {registered, []},
         {mod, {dgiot_atomgit_app, []}},

apps/dgiot_atomgit/src/dgiot_atomgit_channel.erl

@@ -21,7 +21,7 @@
 -include_lib("dgiot/include/dgiot_socket.hrl").
 -include_lib("dgiot/include/logger.hrl").
 -include("dgiot_atomgit.hrl").
--define(TYPE, <<"ATOMGIT">>).
+-define(TYPE, <<"atomgit">>).
 %% API
 -export([start/2]).
 
@@ -33,10 +33,10 @@
     cType => ?TYPE,
     type => ?PROTOCOL_CHL,
     title => #{
-        zh => <<"ATOMGIT测试通道"/utf8>>
+        zh => <<"atomgit测试通道"/utf8>>
     },
     description => #{
-        zh => <<"ATOMGIT测试通道"/utf8>>
+        zh => <<"atomgit测试通道"/utf8>>
     }
 }).
 %% 注册通道参数

apps/dgiot_atomgit/src/protocol/dgiot_atomgit_decoder.erl

@@ -17,7 +17,7 @@
 -module(dgiot_atomgit_decoder).
 -include_lib("dgiot_atomgit.hrl").
 -include_lib("dgiot/include/logger.hrl").
--protocol([?ATOMGIT]).
+-protocol([?atomgit]).
 -define(CRLF, "\r\n").
 %% API
 -export([parse_frame/2, to_frame/1]).

apps/dgiot_bamis/src/dgiot_view_channel.erl

@@ -113,9 +113,23 @@ handle_message({sync_parse, Pid, 'after', get, Token, <<"View">>, #{<<"data">> :
     dgiot_parse_hook:publish(Pid, ResBody1),
     {ok, State};
 
-handle_message({sync_parse, _Pid, 'after', post, _Token, <<"View">>, QueryData}, State) ->
-%%    io:format("~s ~p ~p ~p ~n", [?FILE, ?LINE, _Pid, QueryData]),
+handle_message({sync_parse, _Pid, 'after', post, SessionToken, <<"View">>, #{<<"objectId">> := ViewId} = QueryData}, State) ->
+%%    io:format("~s ~p ~p ~p ~n", [?FILE, ?LINE, SessionToken, QueryData]),
     dgiot_view:post('after', QueryData),
+    case dgiot_auth:get_session(dgiot_utils:to_binary(SessionToken)) of
+        #{<<"roles">> := Roles} ->
+            maps:fold(fun(RoleId, _, _) ->
+                dgiot_parse:update_object(<<"_Role">>, RoleId, #{
+                    <<"views">> => #{
+                        <<"__op">> => <<"AddRelation">>,
+                        <<"objects">> => [#{
+                            <<"__type">> => <<"Pointer">>,
+                            <<"className">> => <<"View">>,
+                            <<"objectId">> => ViewId}]}})
+                      end, [], Roles);
+        _ ->
+            pass
+    end,
     {ok, State};
 
 handle_message({sync_parse, _Pid, 'after', put, _Token, <<"View">>, QueryData}, State) ->

apps/dgiot_device/src/utils/dgiot_device_card.erl

@@ -34,7 +34,7 @@ get_device_card(Channel, ProductId, DeviceId, Args) ->
     Chartdata = get_card(ProductId, Results, DeviceId, Args, dgiot_data:get({shard_storage, ProductId})),
     {ok, #{<<"data">> => Chartdata}}.
 
-decode_shard_data(Data) ->
+decode_shard_data(Data, Result) ->
     case binary:split(Data, <<$,>>, [global, trim]) of
         List when length(List) > 0 ->
             lists:foldl(fun(<<Len:1/binary, Rest/binary>>, Acc) ->
@@ -45,9 +45,9 @@ decode_shard_data(Data) ->
                     _ ->
                         Acc
                 end
-                        end, #{}, List);
+                        end, Result, List);
         _ ->
-            #{}
+            Result
     end.
 
 %% 分片存储 dgiot_data:get({shard_storage, <<"857ed41119">>}).
@@ -64,9 +64,9 @@ get_card(ProductId, Results, DeviceId, Args, true) ->
                     Acc
             end
                     end, <<>>, lists:seq(1, maps:size(Result))),
-    NewResult = dgiot_dlink_proctol:parse_payload(ProductId, decode_shard_data(Buff)),
+    NewResult = dgiot_dlink_proctol:parse_payload(ProductId, decode_shard_data(Buff, Result)),
 %%    io:format("success NewResult = ~ts~n", [unicode:characters_to_list(dgiot_json:encode(NewResult))]),
-    get_card(ProductId, [NewResult#{<<"createdat">> => Createdat}], DeviceId, Args, false);
+    get_card(ProductId, [dgiot_map:merge(NewResult#{<<"createdat">> => Createdat}, Result)], DeviceId, Args, false);
 
 get_card(ProductId, Results, DeviceId, Args, _) ->
     [Result | _] = Results,
@@ -132,10 +132,12 @@ get_card(ProductId, Results, DeviceId, Args, _) ->
 %%                {Color, _, _} = dgiot_device:get_color(DeviceId, Identifier),
                 {Value, Number} =
                     case maps:find(Identifier, Result) of
-                        error ->
+                        {ok, null} ->
                             {<<>>, <<"--">>};
                         {ok, V} ->
-                            {V, dgiot_product_tdengine:check_field(Typea, V, #{<<"datatype">> => DataType, <<"specs">> => Specs, <<"deviceid">> => DeviceId})}
+                            {V, dgiot_product_tdengine:check_field(Typea, V, #{<<"datatype">> => DataType, <<"specs">> => Specs, <<"deviceid">> => DeviceId})};
+                        _ ->
+                            {<<>>, <<"--">>}
                     end,
                 Acc ++ [#{<<"identifier">> => Identifier, <<"name">> => Name,
                     <<"type">> => Typea, <<"number">> => Number, <<"value">> => Value,

apps/dgiot_modbus/src/dgiot_modbusc_tcp.erl

@@ -78,7 +78,7 @@ handle_info({tcp, Buff}, #dclient{channel = ChannelId,
             erlang:send_after(Freq * 1000, self(), read),
             {noreply, Dclient#dclient{child = ChildState#{di => StartAddr, data => <<>>}}};
         _ ->
-            erlang:send_after(1 * 1500, self(), read),
+            erlang:send_after(1 * 1000, self(), read),
             {noreply, Dclient#dclient{child = ChildState#{di => Address + Step, data => <<OldData/binary, Data/binary>>}}}
     end;
 

apps/dgiot_modbus/src/modbus/modbus_tcp.erl

@@ -29,7 +29,7 @@
     build_req_message/1,
     get_addr/4,
     set_addr/3,
-    shard_data/1,
+    shard_data/2,
     change_data/2
 ]
 ).
@@ -308,7 +308,7 @@ parse_frame(StartAddr, FileName, Data) ->
                                     {Value1, _Rest} ->
                                         Value1;
                                     _ ->
-                                        V
+                                        null
                                 end;
                             _ ->
                                 null
@@ -323,7 +323,7 @@ parse_frame(StartAddr, FileName, Data) ->
 %%                                        io:format("~s ~p ~p => ~p => ~p => ~p => ~p => ~p ~n", [?FILE, ?LINE, NewAddress, IntOffset, NewIntOffset, IntLen, V, Value1]),
                                         Value1;
                                     _ ->
-                                        V
+                                        null
                                 end;
                             _ ->
                                 null
@@ -344,6 +344,10 @@ parse_frame(StartAddr, FileName, Data) ->
                           DeviceId = dgiot_parse_id:get_deviceid(ProductId1, Devaddr1),
 %%                          NewAck = change_data(ProductId1, Ack),
                           CacheAck = dgiot_task:merge_cache_data(ProductId1, Ack, -1),
+                          NewResult = dgiot_dlink_proctol:parse_payload(ProductId1, CacheAck),
+                          Props = dgiot_task:get_props(ProductId1),
+                          Calculated = get_calculated(ProductId1, Devaddr1, NewResult, Props),
+
                           dgiot_task:save_cache_data(ProductId1, CacheAck),
                           BinData =
                               maps:fold(fun(K, V, Acc) ->
@@ -352,7 +356,8 @@ parse_frame(StartAddr, FileName, Data) ->
                                   BinV = dgiot_utils:to_binary(V),
                                   <<Acc/binary, Len/binary, BinK/binary, BinV/binary, ",">>
                                         end, <<>>, CacheAck),
-                          Shard_data = modbus_tcp:shard_data(BinData),
+
+                          Shard_data = modbus_tcp:shard_data(BinData, Calculated),
                           case dgiot_data:get({modbus_tcp, dgiot_datetime:now_secs()}) of
                               not_find ->
                                   spawn(fun() ->
@@ -372,8 +377,8 @@ parse_frame(StartAddr, FileName, Data) ->
                   end, #{}, AllData),
     NewAllData.
 
-shard_data(Data) ->
-    shard_data(Data, 1, #{}).
+shard_data(Data, Acc) ->
+    shard_data(Data, 1, Acc).
 
 shard_data(<<>>, _, Acc) ->
     Acc;
@@ -546,6 +551,8 @@ modbus_tcp_decoder(ProductId, Slaveid, Address, Data, Acc1) ->
                                         maps:merge(Acc, Value);
                                     {Value, _Rest} ->
                                         Acc#{Identifier => Value};
+                                    null ->
+                                        Acc;
                                     _ ->
                                         Acc
                                 end;
@@ -606,6 +613,8 @@ format_value(Buff, #{<<"identifier">> := BitIdentifier,
                                 case format_value(V, X, Props) of
                                     {Value1, _Rest} ->
                                         Value1;
+                                    null ->
+                                        null;
                                     _ ->
                                         V
                                 end;
@@ -614,6 +623,8 @@ format_value(Buff, #{<<"identifier">> := BitIdentifier,
                                 case format_value(V, X, Props) of
                                     {Value1, _Rest} ->
                                         Value1;
+                                    null ->
+                                        null;
                                     _ ->
                                         V
                                 end
@@ -716,8 +727,12 @@ format_value(Buff, #{<<"dataSource">> := #{
     IntNum = dgiot_utils:to_int(Num),
     Size = IntNum * 4 * 8,
     <<H:2/binary, L:2/binary, Rest/binary>> = Buff,
-    <<Value:Size/float>> = <<H/binary, L/binary>>,
-    {Value, Rest};
+    case catch <<H/binary, L/binary>> of
+        <<Value:Size/float>> ->
+            {Value, Rest};
+        _ ->
+            null
+    end;
 
 format_value(Buff, #{<<"dataSource">> := #{
     <<"registersnumber">> := Num,
@@ -726,14 +741,18 @@ format_value(Buff, #{<<"dataSource">> := #{
     IntNum = dgiot_utils:to_int(Num),
     Size = IntNum * 4 * 8,
     <<H:2/binary, L:2/binary, Rest/binary>> = Buff,
-    <<Value:Size/float>> = <<L/binary, H/binary>>,
-    {Value, Rest};
+    case catch <<L/binary, H/binary>> of
+        <<Value:Size/float>> ->
+            {Value, Rest};
+        _ ->
+            null
+    end;
 
 %% @todo 其它类型处理
-format_value(Buff, #{<<"identifier">> := Field, <<"originaltype">> := Originaltype}, _Props) ->
-    ?LOG(error, "Field ~p originaltype ~p", [Field, Originaltype]),
+format_value(_Buff, #{<<"identifier">> := _Field, <<"originaltype">> := _Originaltype}, _Props) ->
+%%    ?LOG(error, "Field ~p originaltype ~p", [Field, Originaltype]),
 %%    throw({field_error, <<Field/binary, "_", Originaltype/binary, " is not validate">>}),
-    {<<"">>, Buff}.
+    null.
 
 %% 获取寄存器字节长度
 get_len(IntNum, <<"bool">>) ->
@@ -785,3 +804,33 @@ get_addr(ChannelId, Min, Max, Step) ->
 
 set_addr(ChannelId, Min, Max) ->
     dgiot_data:set_consumer(?consumer(ChannelId), Min, Max).
+
+
+get_calculated(ProductId, DevAddr, Calculated, Props) ->
+    lists:foldl(fun(X, Acc) ->
+        case X of
+            #{<<"isaccumulate">> := true,
+                <<"isstorage">> := true,
+                <<"identifier">> := Identifier,
+                <<"dataForm">> := #{<<"strategy">> := <<"计算值"/utf8>>},
+                <<"dataSource">> := #{<<"key">> := Key} = DataSource
+            } ->
+                case maps:get(Key, Calculated, not_find) of
+                    not_find ->
+                        Acc;
+                    KeyValue ->
+                        dgiot_task:get_statistic(ProductId, DevAddr, Key, Identifier, dgiot_utils:to_int(KeyValue), DataSource, Acc)
+                end;
+            #{<<"isstorage">> := true,
+                <<"identifier">> := Identifier
+            } ->
+                case maps:get(Identifier, Calculated, not_find) of
+                    not_find ->
+                        Acc;
+                    Value ->
+                        Acc#{Identifier => Value}
+                end;
+            _ ->
+                Acc
+        end
+                end, #{}, Props).

apps/dgiot_task/src/dgiot_task.erl

@@ -20,8 +20,8 @@
 -include_lib("dgiot_bridge/include/dgiot_bridge.hrl").
 
 -export([start/1, start/2, send/3, get_pnque_len/1, save_pnque/4, get_pnque/1, del_pnque/1, save_td/4, merge_cache_data/3, save_cache_data/2]).
--export([get_props/1, get_control/3, get_collection/4, get_calculated/4, get_instruct/2, get_storage/2, string2value/2, string2value/3]).
--export([save_td_no_match/4]).
+-export([get_props/1, get_control/3, get_collection/4, get_calculated/4, get_instruct/2, get_storage/2, string2value/2, string2value/3, get_statistic/7]).
+-export([save_td_no_match/4, get_last_value/4]).
 
 %% 注册协议类型
 -protocol_type(#{
@@ -155,8 +155,9 @@ compare(_, _, _) ->
 
 %% 查询上次值
 %% select last(devaddr) as devaddr FROM  _24b9b4bc50._1c9966755d;
-get_last_value(ProductId, DevAddr, Identifier) ->
-    case dgiot_data:get({last_value, ProductId, DevAddr, Identifier}) of
+%% dgiot_data:get({last_value, <<"857ed41119">>, <<"PDJ">>, <<"m583_10">>, <<"bc11c_failnum">>})
+get_last_value(ProductId, DevAddr, Key, Identifier) ->
+    case dgiot_data:get({last_value, ProductId, DevAddr, Key, Identifier}) of
         not_find ->
             case dgiot_tdengine:get_channel(ProductId) of
                 {ok, Channel} ->
@@ -180,38 +181,51 @@ get_last_value(ProductId, DevAddr, Identifier) ->
     end.
 
 %% 统计时长
-get_statistic(ProductId, DevAddr, Identifier, KeyValue, #{<<"type">> := <<"duration">>, <<"comparetype">> := Comparetype, <<"value">> := Value}, Acc) ->
-    Last_Value = get_last_value(ProductId, DevAddr, Identifier),
+get_statistic(ProductId, DevAddr, Key, Identifier, KeyValue, #{<<"type">> := <<"duration">>, <<"comparetype">> := Comparetype, <<"value">> := Value}, Acc) ->
+    Last_Value = get_last_value(ProductId, DevAddr, Key, Identifier),
     case compare(KeyValue, Comparetype, dgiot_utils:to_int(Value)) of
         true ->
-            Last_Value = get_last_value(ProductId, DevAddr, Identifier),
             Time =
-                case dgiot_data:get({last_time, ProductId, DevAddr, Identifier}) of
+                case dgiot_data:get({last_time, ProductId, DevAddr, Key, Identifier}) of
                     {true, OldTime} ->
                         dgiot_datetime:now_secs() - OldTime;
                     _ ->
                         0
                 end,
-            dgiot_data:insert({last_time, ProductId, DevAddr, Identifier}, {true, dgiot_datetime:now_secs()}),
-            dgiot_data:insert({last_value, ProductId, DevAddr, Identifier}, Last_Value + Time),
+            dgiot_data:insert({last_time, ProductId, DevAddr, Key, Identifier}, {true, dgiot_datetime:now_secs()}),
+            dgiot_data:insert({last_value, ProductId, DevAddr, Key, Identifier}, Last_Value + Time),
             Acc#{Identifier => Last_Value + Time};
         _ ->
-            dgiot_data:insert({last_time, ProductId, DevAddr, Identifier}, {false, dgiot_datetime:now_secs()}),
+            dgiot_data:insert({last_time, ProductId, DevAddr, Key, Identifier}, {false, dgiot_datetime:now_secs()}),
+            dgiot_data:insert({last_value, ProductId, DevAddr, Key, Identifier}, Last_Value),
             Acc#{Identifier => Last_Value}
     end;
 
 %% 次数累加
-get_statistic(ProductId, DevAddr, Identifier, KeyValue, #{<<"type">> := <<"frequency">>, <<"comparetype">> := Comparetype, <<"value">> := Value}, Acc) ->
-    Num = get_last_value(ProductId, DevAddr, Identifier),
-    case compare(KeyValue, Comparetype, Value) of
+%% dgiot_data:get({last_flag, <<"857ed41119">>, <<"PDJ">>, <<"m583_10">>, <<"bc11c_failnum">>}).
+get_statistic(ProductId, DevAddr, Key, Identifier, KeyValue, #{<<"type">> := <<"frequency">>, <<"comparetype">> := Comparetype, <<"value">> := Value}, Acc) ->
+    Num = get_last_value(ProductId, DevAddr, Key, Identifier),
+    case compare(KeyValue, Comparetype, dgiot_utils:to_int(Value)) of
         true ->
-            dgiot_data:insert({last_value, ProductId, DevAddr, Identifier}, Num + 1),
-            Acc#{Identifier => Num + 1};
+            case dgiot_data:get({last_flag, ProductId, DevAddr, Key, Identifier}) of
+                not_find when Num =:= 0 ->
+                    dgiot_data:insert({last_value, ProductId, DevAddr, Key, Identifier}, Num + 1),
+                    dgiot_data:insert({last_flag, ProductId, DevAddr, Key, Identifier}, true),
+                    Acc#{Identifier => Num + 1};
+                false ->
+                    dgiot_data:insert({last_value, ProductId, DevAddr, Key, Identifier}, Num + 1),
+                    dgiot_data:insert({last_flag, ProductId, DevAddr, Key, Identifier}, true),
+                    Acc#{Identifier => Num + 1};
+                _ ->
+                    Acc#{Identifier => Num}
+            end;
         _ ->
+            dgiot_data:insert({last_value, ProductId, DevAddr, Key, Identifier}, Num),
+            dgiot_data:insert({last_flag, ProductId, DevAddr, Key, Identifier}, false),
             Acc#{Identifier => Num}
     end;
 
-get_statistic(_, _, _, _, _, Acc) ->
+get_statistic(_, _, _, _, _, _, Acc) ->
     Acc.
 
 %%获取计算值，必须返回物模型里面的数据表示，不能用寄存器地址
@@ -232,7 +246,7 @@ get_calculated(ProductId, DevAddr, Calculated, Props) ->
                             not_find ->
                                 Acc;
                             KeyValue ->
-                                get_statistic(ProductId, DevAddr, Identifier, dgiot_utils:to_int(KeyValue), DataSource, Acc)
+                                get_statistic(ProductId, DevAddr, Key, Identifier, dgiot_utils:to_int(KeyValue), DataSource, Acc)
                         end;
                     #{<<"isstorage">> := true,
                         <<"identifier">> := Identifier,

dgiot_install.sh

@@ -941,6 +941,7 @@ function atomgit_plugin() {
   if [ -d ${script_dir}/apps/dgiot_atomgit/ ]; then
     mv ${script_dir}/apps/dgiot_atomgit ${script_dir}/apps/dgiot_${dgiotmd5}
     for file in `find ${script_dir}/apps/dgiot_${dgiotmd5}/ -type f`; do
+      if [[ $file != *HJ212-2017.pdf* ]]; then
         new_name=$(echo "$file" | sed "s/atomgit/${dgiotmd5}/")
         echo -e "$(date +%F_%T) $LINENO: ${GREEN} file= $file${NC}"
         sed -i "s/atomgit/${dgiotmd5}/g" $file
@@ -951,6 +952,7 @@ function atomgit_plugin() {
           echo -e "$(date +%F_%T) $LINENO: ${GREEN} new_name= ${new_name}${NC}"
           mv "${file}" "${new_name}"
         fi
+      fi
     done
     sed -i "s/atomgit/${dgiotmd5}/g" ${script_dir}/rebar.config.erl
     sed -i "s/atomgit/${dgiotmd5}/g" ${script_dir}/data/loaded_plugins.tmpl

rebar.config.erl

@@ -271,7 +271,6 @@ relx_apps(ReleaseType) ->
         , jsx
         , jesse
         , jwerl
-        , odbc
         , erlydtl
         , erlport
         , ecpool