// Licensed to the LF AI & Data foundation under one // or more contributor license agreements. See the NOTICE file // distributed with this work for additional information // regarding copyright ownership. The ASF licenses this file // to you 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 datacoord import ( "context" "github.com/milvus-io/milvus/internal/types" "github.com/milvus-io/milvus/internal/proto/commonpb" "github.com/milvus-io/milvus/internal/proto/rootcoordpb" ) // allocator is the interface for allocating `UniqueID` or `Timestamp` type allocator interface { allocTimestamp(context.Context) (Timestamp, error) allocID(context.Context) (UniqueID, error) } // make sure rootCoordAllocator implements allocator interface var _ allocator = (*rootCoordAllocator)(nil) // rootCoordAllocator use RootCoord as allocator type rootCoordAllocator struct { types.RootCoord } // newRootCoordAllocator gets an allocator from RootCoord func newRootCoordAllocator(rootCoordClient types.RootCoord) allocator { return &rootCoordAllocator{ RootCoord: rootCoordClient, } } // allocTimestamp allocates a Timestamp // invoking RootCoord `AllocTimestamp` func (alloc *rootCoordAllocator) allocTimestamp(ctx context.Context) (Timestamp, error) { resp, err := alloc.AllocTimestamp(ctx, &rootcoordpb.AllocTimestampRequest{ Base: &commonpb.MsgBase{ MsgType: commonpb.MsgType_RequestTSO, MsgID: 0, Timestamp: 0, SourceID: Params.NodeID, }, Count: 1, }) if err = VerifyResponse(resp, err); err != nil { return 0, err } return resp.Timestamp, nil } // allocID allocates an `UniqueID` from RootCoord, invoking AllocID grpc func (alloc *rootCoordAllocator) allocID(ctx context.Context) (UniqueID, error) { resp, err := alloc.AllocID(ctx, &rootcoordpb.AllocIDRequest{ Base: &commonpb.MsgBase{ MsgType: commonpb.MsgType_RequestID, MsgID: 0, Timestamp: 0, SourceID: Params.NodeID, }, Count: 1, }) if err = VerifyResponse(resp, err); err != nil { return 0, err } return resp.ID, nil }