// 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 datanode import ( "context" "errors" "github.com/milvus-io/milvus/internal/util/commonpbutil" "github.com/milvus-io/milvus/internal/util/metautil" "github.com/milvus-io/milvus-proto/go-api/commonpb" "github.com/milvus-io/milvus/internal/proto/rootcoordpb" "github.com/milvus-io/milvus/internal/types" ) type allocatorInterface interface { allocID() (UniqueID, error) allocIDBatch(count uint32) (UniqueID, uint32, error) genKey(ids ...UniqueID) (key string, err error) } type allocator struct { rootCoord types.RootCoord } // check if allocator implements allocatorInterface var _ allocatorInterface = &allocator{} func newAllocator(s types.RootCoord) *allocator { return &allocator{ rootCoord: s, } } // allocID allocates one ID from rootCoord func (alloc *allocator) allocID() (UniqueID, error) { ctx := context.TODO() resp, err := alloc.rootCoord.AllocID(ctx, &rootcoordpb.AllocIDRequest{ Base: commonpbutil.NewMsgBase( commonpbutil.WithMsgType(commonpb.MsgType_RequestID), commonpbutil.WithMsgID(1), // GOOSE TODO commonpbutil.WithTimeStamp(0), // GOOSE TODO commonpbutil.WithSourceID(Params.DataNodeCfg.GetNodeID()), ), Count: 1, }) if err != nil { return 0, err } if resp.GetStatus().GetErrorCode() != commonpb.ErrorCode_Success { return 0, errors.New(resp.GetStatus().GetReason()) } return resp.ID, nil } // allocIDBatch allocates IDs in batch from rootCoord func (alloc *allocator) allocIDBatch(count uint32) (UniqueID, uint32, error) { ctx := context.Background() resp, err := alloc.rootCoord.AllocID(ctx, &rootcoordpb.AllocIDRequest{ Base: commonpbutil.NewMsgBase( commonpbutil.WithMsgType(commonpb.MsgType_RequestID), commonpbutil.WithSourceID(Params.DataNodeCfg.GetNodeID()), ), Count: count, }) if err != nil { return 0, 0, err } if resp.GetStatus().GetErrorCode() != commonpb.ErrorCode_Success { return 0, 0, errors.New(resp.GetStatus().GetReason()) } return resp.GetID(), resp.GetCount(), nil } // genKey gives a valid key string for lists of UniqueIDs: func (alloc *allocator) genKey(ids ...UniqueID) (string, error) { idx, err := alloc.allocID() if err != nil { return "", err } ids = append(ids, idx) return metautil.JoinIDPath(ids...), nil }