mirror of
https://gitee.com/rainbond/Rainbond.git
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131 lines
3.4 KiB
Go
131 lines
3.4 KiB
Go
// Copyright (C) 2014-2018 Goodrain Co., Ltd.
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// RAINBOND, Application Management Platform
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version. For any non-GPL usage of Rainbond,
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// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
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// must be obtained first.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package client
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import (
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"encoding/json"
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"fmt"
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"time"
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"github.com/Sirupsen/logrus"
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"github.com/goodrain/rainbond/mq/api/grpc/pb"
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clientv3 "github.com/coreos/etcd/clientv3"
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etcdnaming "github.com/coreos/etcd/clientv3/naming"
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context "golang.org/x/net/context"
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grpc "google.golang.org/grpc"
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)
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//BuilderTopic builder for linux
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var BuilderTopic = "builder"
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//WindowsBuilderTopic builder for windows
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var WindowsBuilderTopic = "windows_builder"
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//WorkerTopic worker topic
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var WorkerTopic = "worker"
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//MQClient mq client
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type MQClient interface {
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pb.TaskQueueClient
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Close()
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SendBuilderTopic(t TaskStruct) error
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}
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type mqClient struct {
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pb.TaskQueueClient
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ctx context.Context
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cancel context.CancelFunc
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}
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//NewMqClient new a mq client
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func NewMqClient(etcdendpoints []string, defaultserver string) (MQClient, error) {
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ctx, cancel := context.WithCancel(context.Background())
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var conn *grpc.ClientConn
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if etcdendpoints != nil && len(defaultserver) > 1 {
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c, err := clientv3.New(clientv3.Config{Endpoints: etcdendpoints, Context: ctx})
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if err != nil {
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return nil, err
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}
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r := &etcdnaming.GRPCResolver{Client: c}
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b := grpc.RoundRobin(r)
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conn, err = grpc.DialContext(ctx, "/rainbond/discover/rainbond_mq", grpc.WithBalancer(b), grpc.WithInsecure())
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if err != nil {
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return nil, err
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}
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} else {
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var err error
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conn, err = grpc.DialContext(ctx, defaultserver, grpc.WithInsecure())
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if err != nil {
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return nil, err
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}
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}
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cli := pb.NewTaskQueueClient(conn)
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client := &mqClient{
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ctx: ctx,
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cancel: cancel,
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}
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client.TaskQueueClient = cli
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return client, nil
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}
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//Close mq grpc client must be closed after uesd
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func (m *mqClient) Close() {
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m.cancel()
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}
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//TaskStruct task struct
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type TaskStruct struct {
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Topic string
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TaskType string
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TaskBody interface{}
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}
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//buildTask build task
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func buildTask(t TaskStruct) (*pb.EnqueueRequest, error) {
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var er pb.EnqueueRequest
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taskJSON, err := json.Marshal(t.TaskBody)
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if err != nil {
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logrus.Errorf("tran task json error")
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return &er, err
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}
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er.Topic = t.Topic
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er.Message = &pb.TaskMessage{
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TaskType: t.TaskType,
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CreateTime: time.Now().Format(time.RFC3339),
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TaskBody: taskJSON,
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User: "rainbond",
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}
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return &er, nil
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}
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func (m *mqClient) SendBuilderTopic(t TaskStruct) error {
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request, err := buildTask(t)
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if err != nil {
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return fmt.Errorf("create task body error %s", err.Error())
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}
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ctx, cancel := context.WithTimeout(m.ctx, time.Second*5)
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defer cancel()
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_, err = m.TaskQueueClient.Enqueue(ctx, request)
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if err != nil {
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return fmt.Errorf("send enqueue request error %s", err.Error())
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}
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return nil
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}
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