Chris Lu
5 years ago
3 changed files with 99 additions and 88 deletions
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88weed/messaging/broker_grpc_server.go
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90weed/messaging/broker_grpc_server_publish.go
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9weed/messaging/broker_grpc_server_subscribe.go
@ -0,0 +1,90 @@ |
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package messaging |
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import ( |
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"fmt" |
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"io" |
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"time" |
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"github.com/golang/protobuf/proto" |
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"github.com/chrislusf/seaweedfs/weed/filer2" |
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"github.com/chrislusf/seaweedfs/weed/glog" |
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"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb" |
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"github.com/chrislusf/seaweedfs/weed/util/log_buffer" |
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) |
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func (broker *MessageBroker) Publish(stream messaging_pb.SeaweedMessaging_PublishServer) error { |
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// process initial request
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in, err := stream.Recv() |
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if err == io.EOF { |
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return nil |
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} |
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if err != nil { |
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return err |
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} |
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namespace, topic, partition := in.Init.Namespace, in.Init.Topic, in.Init.Partition |
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updatesChan := make(chan int32) |
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// TODO look it up
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topicConfig := &messaging_pb.TopicConfiguration{ |
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} |
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go func() { |
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for update := range updatesChan { |
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if err := stream.Send(&messaging_pb.PublishResponse{ |
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Config: &messaging_pb.PublishResponse_ConfigMessage{ |
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PartitionCount: update, |
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}, |
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}); err != nil { |
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glog.V(0).Infof("err sending publish response: %v", err) |
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return |
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} |
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} |
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}() |
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logBuffer := log_buffer.NewLogBuffer(time.Minute, func(startTime, stopTime time.Time, buf []byte) { |
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targetFile := fmt.Sprintf( |
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"%s/%s/%s/%04d-%02d-%02d/%02d-%02d.part%02d", |
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filer2.TopicsDir, namespace, topic, |
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startTime.Year(), startTime.Month(), startTime.Day(), startTime.Hour(), startTime.Minute(), |
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partition, |
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) |
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if err := broker.appendToFile(targetFile, topicConfig, buf); err != nil { |
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glog.V(0).Infof("log write failed %s: %v", targetFile, err) |
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} |
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}, func() { |
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// notify subscribers
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}) |
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for { |
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in, err := stream.Recv() |
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if err == io.EOF { |
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return nil |
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} |
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if err != nil { |
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return err |
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} |
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m := &messaging_pb.Message{ |
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Timestamp: time.Now().UnixNano(), |
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Key: in.Data.Key, |
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Value: in.Data.Value, |
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Headers: in.Data.Headers, |
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} |
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data, err := proto.Marshal(m) |
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if err != nil { |
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glog.Errorf("marshall error: %v\n", err) |
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continue |
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} |
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logBuffer.AddToBuffer(in.Data.Key, data) |
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} |
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} |
@ -0,0 +1,9 @@ |
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package messaging |
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import ( |
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"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb" |
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) |
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func (broker *MessageBroker) Subscribe(server messaging_pb.SeaweedMessaging_SubscribeServer) error { |
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panic("implement me") |
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} |
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