109 lines
2.7 KiB
Go
109 lines
2.7 KiB
Go
/*
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* Copyright 2025 coze-dev Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package kafka
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import (
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"context"
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"time"
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"github.com/IBM/sarama"
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"github.com/coze-dev/coze-studio/backend/infra/contract/eventbus"
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"github.com/coze-dev/coze-studio/backend/pkg/lang/signal"
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"github.com/coze-dev/coze-studio/backend/pkg/logs"
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"github.com/coze-dev/coze-studio/backend/pkg/safego"
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)
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type consumerImpl struct {
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broker string
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topic string
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groupID string
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handler eventbus.ConsumerHandler
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consumerGroup sarama.ConsumerGroup
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}
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func RegisterConsumer(broker string, topic, groupID string, handler eventbus.ConsumerHandler, opts ...eventbus.ConsumerOpt) error {
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config := sarama.NewConfig()
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config.Consumer.Offsets.Initial = sarama.OffsetOldest // 从最早消息开始消费
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config.Consumer.Group.Session.Timeout = 30 * time.Second
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o := &eventbus.ConsumerOption{}
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for _, opt := range opts {
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opt(o)
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}
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// TODO: orderly
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consumerGroup, err := sarama.NewConsumerGroup([]string{broker}, groupID, config)
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if err != nil {
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return err
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}
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c := &consumerImpl{
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broker: broker,
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topic: topic,
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groupID: groupID,
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handler: handler,
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consumerGroup: consumerGroup,
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}
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ctx := context.Background()
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safego.Go(ctx, func() {
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for {
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if err := consumerGroup.Consume(ctx, []string{topic}, c); err != nil {
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logs.Errorf("consumer group consume: %v", err)
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break
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}
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}
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})
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safego.Go(ctx, func() {
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signal.WaitExit()
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if err := c.consumerGroup.Close(); err != nil {
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logs.Errorf("consumer group close: %v", err)
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}
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})
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return nil
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}
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func (c *consumerImpl) Setup(sess sarama.ConsumerGroupSession) error {
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return nil
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}
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func (c *consumerImpl) Cleanup(sess sarama.ConsumerGroupSession) error {
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return nil
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}
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func (c *consumerImpl) ConsumeClaim(sess sarama.ConsumerGroupSession, claim sarama.ConsumerGroupClaim) error {
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ctx := context.Background()
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for msg := range claim.Messages() {
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m := &eventbus.Message{
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Topic: msg.Topic,
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Group: c.groupID,
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Body: msg.Value,
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}
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if err := c.handler.HandleMessage(ctx, m); err != nil {
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continue
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}
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sess.MarkMessage(msg, "") // TODO: 消费策略可以配置
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}
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return nil
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}
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