Merge pull request #1318 from chrislusf/msg_channel

Add messaging, add channel

1 files changed, 0 insertions, 91 deletions

diff --git a/weed/messaging/client/subscriber.go b/weed/messaging/client/subscriber.go
deleted file mode 100644
index 53e7ffc7d..000000000
--- a/weed/messaging/client/subscriber.go
+++ /dev/null
@@ -1,91 +0,0 @@
-package client
-
-import (
-	"context"
-	"io"
-	"time"
-
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
-)
-
-type Subscriber struct {
-	subscriberClients []messaging_pb.SeaweedMessaging_SubscribeClient
-	subscriberId      string
-}
-
-func (mc *MessagingClient) NewSubscriber(subscriberId, namespace, topic string, startTime time.Time) (*Subscriber, error) {
-	// read topic configuration
-	topicConfiguration := &messaging_pb.TopicConfiguration{
-		PartitionCount: 4,
-	}
-	subscriberClients := make([]messaging_pb.SeaweedMessaging_SubscribeClient, topicConfiguration.PartitionCount)
-
-	for i := 0; i < int(topicConfiguration.PartitionCount); i++ {
-		client, err := mc.setupSubscriberClient(subscriberId, namespace, topic, int32(i), startTime)
-		if err != nil {
-			return nil, err
-		}
-		subscriberClients[i] = client
-	}
-
-	return &Subscriber{
-		subscriberClients: subscriberClients,
-		subscriberId:      subscriberId,
-	}, nil
-}
-
-func (mc *MessagingClient) setupSubscriberClient(subscriberId, namespace, topic string, partition int32, startTime time.Time) (messaging_pb.SeaweedMessaging_SubscribeClient, error) {
-
-	stream, err := messaging_pb.NewSeaweedMessagingClient(mc.grpcConnection).Subscribe(context.Background())
-	if err != nil {
-		return nil, err
-	}
-
-	// send init message
-	err = stream.Send(&messaging_pb.SubscriberMessage{
-		Init: &messaging_pb.SubscriberMessage_InitMessage{
-			Namespace:     namespace,
-			Topic:         topic,
-			Partition:     partition,
-			StartPosition: messaging_pb.SubscriberMessage_InitMessage_TIMESTAMP,
-			TimestampNs:   startTime.UnixNano(),
-			SubscriberId:  subscriberId,
-		},
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	// process init response
-	initResponse, err := stream.Recv()
-	if err != nil {
-		return nil, err
-	}
-	if initResponse.Redirect != nil {
-		// TODO follow redirection
-	}
-
-	return stream, nil
-
-}
-
-func (s *Subscriber) doSubscribe(partition int, processFn func(m *messaging_pb.Message)) error {
-	for {
-		resp, listenErr := s.subscriberClients[partition].Recv()
-		if listenErr == io.EOF {
-			return nil
-		}
-		if listenErr != nil {
-			println(listenErr.Error())
-			return listenErr
-		}
-		processFn(resp.Data)
-	}
-}
-
-// Subscribe starts goroutines to process the messages
-func (s *Subscriber) Subscribe(processFn func(m *messaging_pb.Message)) {
-	for i := 0; i < len(s.subscriberClients); i++ {
-		go s.doSubscribe(i, processFn)
-	}
-}