You are viewing a plain text version of this content. The canonical link for it is here.
Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2021/11/15 06:31:53 UTC
[GitHub] [dubbo-go-pixiu] tydhot commented on a change in pull request #300: [feature eventmesh]eventmesh
tydhot commented on a change in pull request #300:
URL: https://github.com/apache/dubbo-go-pixiu/pull/300#discussion_r749036145
##########
File path: pkg/client/mq/kafka_facade.go
##########
@@ -0,0 +1,237 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) 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 mq
+
+import (
+ "bytes"
+ "context"
+ "encoding/json"
+ "net/http"
+ "strconv"
+ "sync"
+ "time"
+)
+
+import (
+ "github.com/apache/dubbo-go-pixiu/pkg/filter/event"
+ "github.com/apache/dubbo-go-pixiu/pkg/logger"
+)
+
+import (
+ "github.com/Shopify/sarama"
+ perrors "github.com/pkg/errors"
+)
+
+func NewKafkaConsumerFacade(config event.KafkaConsumerConfig) (*KafkaConsumerFacade, error) {
+ c := sarama.NewConfig()
+ c.ClientID = config.ClientID
+ c.Metadata.Full = config.Metadata.Full
+ c.Metadata.Retry.Max = config.Metadata.Retry.Max
+ c.Metadata.Retry.Backoff = config.Metadata.Retry.Backoff
+ if config.ProtocolVersion != "" {
+ version, err := sarama.ParseKafkaVersion(config.ProtocolVersion)
+ if err != nil {
+ return nil, err
+ }
+ c.Version = version
+ }
+ consumer, err := sarama.NewConsumer(config.Brokers, c)
+ if err != nil {
+ return nil, err
+ }
+
+ return &KafkaConsumerFacade{consumer: consumer, httpClient: &http.Client{Timeout: 5 * time.Second}, done: make(chan struct{})}, nil
+}
+
+type KafkaConsumerFacade struct {
+ consumer sarama.Consumer
+ consumerManager map[string]func()
+ rwLock sync.RWMutex
+ httpClient *http.Client
+ wg sync.WaitGroup
+ done chan struct{}
+}
+
+func (f *KafkaConsumerFacade) Subscribe(ctx context.Context, opts ...Option) error {
+ cOpt := DefaultOptions()
+ cOpt.ApplyOpts(opts...)
+ partConsumer, err := f.consumer.ConsumePartition(cOpt.Topic, int32(cOpt.Partition), sarama.OffsetOldest)
+ if err != nil {
+ return err
+ }
+ c, cancel := context.WithCancel(ctx)
+ key := GetConsumerManagerKey(cOpt.Topic, int32(cOpt.Partition))
+ f.rwLock.Lock()
+ defer f.rwLock.Unlock()
+ f.consumerManager[key] = cancel
+ f.wg.Add(2)
+ go f.ConsumePartitions(c, partConsumer, cOpt.ConsumeUrl)
+ go f.checkConsumerIsAlive(c, key, cOpt.CheckUrl)
+ return nil
+}
+
+// ConsumePartitions consume function
+func (f *KafkaConsumerFacade) ConsumePartitions(ctx context.Context, partConsumer sarama.PartitionConsumer, consumeUrl string) {
+ defer f.wg.Done()
+
+ for {
+ select {
+ case <-f.done:
+ logger.Info()
+ case msg := <-partConsumer.Messages():
+ data, err := json.Marshal(event.MQMsgPush{Msg: []string{string(msg.Value)}})
+ if err != nil {
+ logger.Warn()
+ continue
+ }
+
+ req, err := http.NewRequest(http.MethodPost, consumeUrl, bytes.NewReader(data))
+ if err != nil {
+ logger.Warn()
+ continue
+ }
+
+ for i := 0; i < 5; i++ {
+ err := func() error {
+ resp, err := f.httpClient.Do(req)
+ if err != nil {
+ return err
+ }
+ defer resp.Body.Close()
+
+ if resp.StatusCode == http.StatusOK {
+ return nil
+ }
+ return perrors.New("failed send msg to consumer with status code " + strconv.Itoa(resp.StatusCode))
Review comment:
got it
##########
File path: pkg/client/mq/kafka_facade.go
##########
@@ -0,0 +1,237 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) 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 mq
+
+import (
+ "bytes"
+ "context"
+ "encoding/json"
+ "net/http"
+ "strconv"
+ "sync"
+ "time"
+)
+
+import (
+ "github.com/apache/dubbo-go-pixiu/pkg/filter/event"
+ "github.com/apache/dubbo-go-pixiu/pkg/logger"
+)
+
+import (
+ "github.com/Shopify/sarama"
+ perrors "github.com/pkg/errors"
+)
+
+func NewKafkaConsumerFacade(config event.KafkaConsumerConfig) (*KafkaConsumerFacade, error) {
+ c := sarama.NewConfig()
+ c.ClientID = config.ClientID
+ c.Metadata.Full = config.Metadata.Full
+ c.Metadata.Retry.Max = config.Metadata.Retry.Max
+ c.Metadata.Retry.Backoff = config.Metadata.Retry.Backoff
+ if config.ProtocolVersion != "" {
+ version, err := sarama.ParseKafkaVersion(config.ProtocolVersion)
+ if err != nil {
+ return nil, err
+ }
+ c.Version = version
+ }
+ consumer, err := sarama.NewConsumer(config.Brokers, c)
+ if err != nil {
+ return nil, err
+ }
+
+ return &KafkaConsumerFacade{consumer: consumer, httpClient: &http.Client{Timeout: 5 * time.Second}, done: make(chan struct{})}, nil
+}
+
+type KafkaConsumerFacade struct {
+ consumer sarama.Consumer
+ consumerManager map[string]func()
+ rwLock sync.RWMutex
+ httpClient *http.Client
+ wg sync.WaitGroup
+ done chan struct{}
+}
+
+func (f *KafkaConsumerFacade) Subscribe(ctx context.Context, opts ...Option) error {
+ cOpt := DefaultOptions()
+ cOpt.ApplyOpts(opts...)
+ partConsumer, err := f.consumer.ConsumePartition(cOpt.Topic, int32(cOpt.Partition), sarama.OffsetOldest)
+ if err != nil {
+ return err
+ }
+ c, cancel := context.WithCancel(ctx)
+ key := GetConsumerManagerKey(cOpt.Topic, int32(cOpt.Partition))
+ f.rwLock.Lock()
+ defer f.rwLock.Unlock()
+ f.consumerManager[key] = cancel
+ f.wg.Add(2)
+ go f.ConsumePartitions(c, partConsumer, cOpt.ConsumeUrl)
+ go f.checkConsumerIsAlive(c, key, cOpt.CheckUrl)
+ return nil
+}
+
+// ConsumePartitions consume function
+func (f *KafkaConsumerFacade) ConsumePartitions(ctx context.Context, partConsumer sarama.PartitionConsumer, consumeUrl string) {
+ defer f.wg.Done()
+
+ for {
+ select {
+ case <-f.done:
+ logger.Info()
Review comment:
ok
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: notifications-unsubscribe@dubbo.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: notifications-unsubscribe@dubbo.apache.org
For additional commands, e-mail: notifications-help@dubbo.apache.org