mirror of
https://gitee.com/milvus-io/milvus.git
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94 lines
2.7 KiB
Go
94 lines
2.7 KiB
Go
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License.
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package mqclient
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import (
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"strconv"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/milvus-io/milvus/internal/util/rocksmq/client/rocksmq"
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)
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type rmqClient struct {
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client rocksmq.Client
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}
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// NewRmqClient returns a new rmqClient object
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func NewRmqClient(opts rocksmq.ClientOptions) (*rmqClient, error) {
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c, err := rocksmq.NewClient(opts)
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if err != nil {
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log.Error("Set rmq client failed, error", zap.Error(err))
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return nil, err
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}
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return &rmqClient{client: c}, nil
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}
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// CreateProducer creates a producer for rocksmq client
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func (rc *rmqClient) CreateProducer(options ProducerOptions) (Producer, error) {
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rmqOpts := rocksmq.ProducerOptions{Topic: options.Topic}
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pp, err := rc.client.CreateProducer(rmqOpts)
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if err != nil {
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return nil, err
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}
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rp := rmqProducer{p: pp}
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return &rp, nil
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}
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// Subscribe subscribes a consumer in rmq client
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func (rc *rmqClient) Subscribe(options ConsumerOptions) (Consumer, error) {
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receiveChannel := make(chan rocksmq.ConsumerMessage, options.BufSize)
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cli, err := rc.client.Subscribe(rocksmq.ConsumerOptions{
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Topic: options.Topic,
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SubscriptionName: options.SubscriptionName,
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MessageChannel: receiveChannel,
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SubscriptionInitialPosition: rocksmq.SubscriptionInitialPosition(options.SubscriptionInitialPosition),
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})
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if err != nil {
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return nil, err
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}
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rConsumer := &RmqConsumer{c: cli, closeCh: make(chan struct{})}
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return rConsumer, nil
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}
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// EarliestMessageID returns the earliest message ID for rmq client
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func (rc *rmqClient) EarliestMessageID() MessageID {
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rID := rocksmq.EarliestMessageID()
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return &rmqID{messageID: rID}
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}
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// StringToMsgID converts string id to MessageID
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func (rc *rmqClient) StringToMsgID(id string) (MessageID, error) {
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rID, err := strconv.ParseInt(id, 10, 64)
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if err != nil {
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return nil, err
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}
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return &rmqID{messageID: rID}, nil
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}
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func (rc *rmqClient) BytesToMsgID(id []byte) (MessageID, error) {
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rID, err := DeserializeRmqID(id)
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if err != nil {
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return nil, err
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}
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return &rmqID{messageID: rID}, nil
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}
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func (rc *rmqClient) Close() {
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// TODO(yukun): What to do here?
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// rc.client.Close()
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}
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