sub

6 files changed, 197 insertions, 194 deletions

diff --git a/weed/mq/broker/brokder_grpc_sub.go b/weed/mq/broker/brokder_grpc_sub.go
new file mode 100644
index 000000000..e5cbde83f
--- /dev/null
+++ b/weed/mq/broker/brokder_grpc_sub.go
@@ -0,0 +1,40 @@
+package broker
+
+import (
+	"github.com/seaweedfs/seaweedfs/weed/glog"
+	"github.com/seaweedfs/seaweedfs/weed/mq/topic"
+	"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
+	"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
+	"time"
+)
+
+func (broker *MessageQueueBroker) Subscribe(req *mq_pb.SubscribeRequest, stream mq_pb.SeaweedMessaging_SubscribeServer) error {
+
+	localTopicPartition := broker.localTopicManager.GetTopicPartition(topic.FromPbTopic(req.Init.Topic),
+		topic.FromPbPartition(req.Init.Partition))
+	if localTopicPartition == nil {
+		stream.Send(&mq_pb.SubscribeResponse{
+			Message: &mq_pb.SubscribeResponse_Ctrl{
+				&mq_pb.SubscribeResponse_CtrlMessage{
+					Error: "not found",
+				},
+			},
+		})
+		return nil
+	}
+
+	localTopicPartition.Subscribe("client", time.Now(), func(logEntry *filer_pb.LogEntry) error {
+		if err := stream.Send(&mq_pb.SubscribeResponse{Message: &mq_pb.SubscribeResponse_Data{
+			Data: &mq_pb.DataMessage{
+				Key:   []byte("hello"),
+				Value: []byte("world"),
+			},
+		}}); err != nil {
+			glog.Errorf("Error sending setup response: %v", err)
+			return err
+		}
+		return nil
+	})
+
+	return nil
+}
diff --git a/weed/mq/client/pub_client/publisher.go b/weed/mq/client/pub_client/publisher.go
new file mode 100644
index 000000000..790580777
--- /dev/null
+++ b/weed/mq/client/pub_client/publisher.go
@@ -0,0 +1,5 @@
+package main
+
+func main() {
+
+}
diff --git a/weed/mq/topic/local_partition.go b/weed/mq/topic/local_partition.go
index 3fc41f65a..6dbaaea39 100644
--- a/weed/mq/topic/local_partition.go
+++ b/weed/mq/topic/local_partition.go
@@ -2,6 +2,7 @@ package topic
 
 import (
 	"github.com/seaweedfs/seaweedfs/weed/pb"
+	"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
 	"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
 	"github.com/seaweedfs/seaweedfs/weed/util/log_buffer"
 	"time"
@@ -14,10 +15,18 @@ type LocalPartition struct {
 	logBuffer       *log_buffer.LogBuffer
 }
 
+type OnEachMessageFn func(logEntry *filer_pb.LogEntry) error
+
 func (p LocalPartition) Publish(message *mq_pb.DataMessage) {
 	p.logBuffer.AddToBuffer(message.Key, message.Value, time.Now().UnixNano())
 }
 
+func (p LocalPartition) Subscribe(clientName string, startReadTime time.Time, eachMessageFn OnEachMessageFn) {
+	p.logBuffer.LoopProcessLogData(clientName, startReadTime, 0, func() bool {
+		return true
+	}, eachMessageFn)
+}
+
 func FromPbBrokerPartitionsAssignment(self pb.ServerAddress, assignment *mq_pb.BrokerPartitionsAssignment) *LocalPartition {
 	isLeaer := assignment.LeaderBroker == string(self)
 	localPartition := &LocalPartition{
diff --git a/weed/pb/mq.proto b/weed/pb/mq.proto
index 5ba859774..efdec44d6 100644
--- a/weed/pb/mq.proto
+++ b/weed/pb/mq.proto
@@ -34,7 +34,7 @@ service SeaweedMessaging {
     // data plane
     rpc Publish (stream PublishRequest) returns (stream PublishResponse) {
     }
-    rpc Subscribe (stream SubscribeRequest) returns (stream SubscribeResponse) {
+    rpc Subscribe (SubscribeRequest) returns (stream SubscribeResponse) {
     }
 }
 
@@ -171,11 +171,8 @@ message SubscribeRequest {
         Topic topic = 1;
         Partition partition = 2;
     }
-    oneof message {
-        InitMessage init = 1;
-        DataMessage data = 2;
-    }
-    int64 sequence = 3;
+    InitMessage init = 1;
+    int64 sequence = 2;
 }
 message SubscribeResponse {
     message CtrlMessage {
diff --git a/weed/pb/mq_pb/mq.pb.go b/weed/pb/mq_pb/mq.pb.go
index 6d37a6c1a..a34e23194 100644
--- a/weed/pb/mq_pb/mq.pb.go
+++ b/weed/pb/mq_pb/mq.pb.go
@@ -1442,12 +1442,8 @@ type SubscribeRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// Types that are assignable to Message:
-	//
-	//	*SubscribeRequest_Init
-	//	*SubscribeRequest_Data
-	Message  isSubscribeRequest_Message `protobuf_oneof:"message"`
-	Sequence int64                      `protobuf:"varint,3,opt,name=sequence,proto3" json:"sequence,omitempty"`
+	Init     *SubscribeRequest_InitMessage `protobuf:"bytes,1,opt,name=init,proto3" json:"init,omitempty"`
+	Sequence int64                         `protobuf:"varint,2,opt,name=sequence,proto3" json:"sequence,omitempty"`
 }
 
 func (x *SubscribeRequest) Reset() {
@@ -1482,27 +1478,13 @@ func (*SubscribeRequest) Descriptor() ([]byte, []int) {
 	return file_mq_proto_rawDescGZIP(), []int{25}
 }
 
-func (m *SubscribeRequest) GetMessage() isSubscribeRequest_Message {
-	if m != nil {
-		return m.Message
-	}
-	return nil
-}
-
 func (x *SubscribeRequest) GetInit() *SubscribeRequest_InitMessage {
-	if x, ok := x.GetMessage().(*SubscribeRequest_Init); ok {
+	if x != nil {
 		return x.Init
 	}
 	return nil
 }
 
-func (x *SubscribeRequest) GetData() *DataMessage {
-	if x, ok := x.GetMessage().(*SubscribeRequest_Data); ok {
-		return x.Data
-	}
-	return nil
-}
-
 func (x *SubscribeRequest) GetSequence() int64 {
 	if x != nil {
 		return x.Sequence
@@ -1510,22 +1492,6 @@ func (x *SubscribeRequest) GetSequence() int64 {
 	return 0
 }
 
-type isSubscribeRequest_Message interface {
-	isSubscribeRequest_Message()
-}
-
-type SubscribeRequest_Init struct {
-	Init *SubscribeRequest_InitMessage `protobuf:"bytes,1,opt,name=init,proto3,oneof"`
-}
-
-type SubscribeRequest_Data struct {
-	Data *DataMessage `protobuf:"bytes,2,opt,name=data,proto3,oneof"`
-}
-
-func (*SubscribeRequest_Init) isSubscribeRequest_Message() {}
-
-func (*SubscribeRequest_Data) isSubscribeRequest_Message() {}
-
 type SubscribeResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1965,106 +1931,102 @@ var file_mq_proto_rawDesc = []byte{
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 	0x4e, 0x0a, 0x0c, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2e, 0x6d, 0x71, 0x42,
 	0x10, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x51, 0x75, 0x65, 0x75, 0x65, 0x50, 0x72, 0x6f, 0x74,
 	0x6f, 0x5a, 0x2c, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x73, 0x65,
@@ -2136,38 +2098,37 @@ var file_mq_proto_depIdxs = []int32{
 	27, // 14: messaging_pb.PublishRequest.init:type_name -> messaging_pb.PublishRequest.InitMessage
 	22, // 15: messaging_pb.PublishRequest.data:type_name -> messaging_pb.DataMessage
 	28, // 16: messaging_pb.SubscribeRequest.init:type_name -> messaging_pb.SubscribeRequest.InitMessage
-	22, // 17: messaging_pb.SubscribeRequest.data:type_name -> messaging_pb.DataMessage
-	29, // 18: messaging_pb.SubscribeResponse.ctrl:type_name -> messaging_pb.SubscribeResponse.CtrlMessage
-	22, // 19: messaging_pb.SubscribeResponse.data:type_name -> messaging_pb.DataMessage
-	3,  // 20: messaging_pb.PublishRequest.InitMessage.topic:type_name -> messaging_pb.Topic
-	4,  // 21: messaging_pb.PublishRequest.InitMessage.partition:type_name -> messaging_pb.Partition
-	3,  // 22: messaging_pb.SubscribeRequest.InitMessage.topic:type_name -> messaging_pb.Topic
-	4,  // 23: messaging_pb.SubscribeRequest.InitMessage.partition:type_name -> messaging_pb.Partition
-	1,  // 24: messaging_pb.SeaweedMessaging.FindBrokerLeader:input_type -> messaging_pb.FindBrokerLeaderRequest
-	6,  // 25: messaging_pb.SeaweedMessaging.AssignSegmentBrokers:input_type -> messaging_pb.AssignSegmentBrokersRequest
-	8,  // 26: messaging_pb.SeaweedMessaging.CheckSegmentStatus:input_type -> messaging_pb.CheckSegmentStatusRequest
-	10, // 27: messaging_pb.SeaweedMessaging.CheckBrokerLoad:input_type -> messaging_pb.CheckBrokerLoadRequest
-	12, // 28: messaging_pb.SeaweedMessaging.FindTopicBrokers:input_type -> messaging_pb.FindTopicBrokersRequest
-	16, // 29: messaging_pb.SeaweedMessaging.RequestTopicPartitions:input_type -> messaging_pb.RequestTopicPartitionsRequest
-	18, // 30: messaging_pb.SeaweedMessaging.AssignTopicPartitions:input_type -> messaging_pb.AssignTopicPartitionsRequest
-	20, // 31: messaging_pb.SeaweedMessaging.CheckTopicPartitionsStatus:input_type -> messaging_pb.CheckTopicPartitionsStatusRequest
-	23, // 32: messaging_pb.SeaweedMessaging.Publish:input_type -> messaging_pb.PublishRequest
-	25, // 33: messaging_pb.SeaweedMessaging.Subscribe:input_type -> messaging_pb.SubscribeRequest
-	2,  // 34: messaging_pb.SeaweedMessaging.FindBrokerLeader:output_type -> messaging_pb.FindBrokerLeaderResponse
-	7,  // 35: messaging_pb.SeaweedMessaging.AssignSegmentBrokers:output_type -> messaging_pb.AssignSegmentBrokersResponse
-	9,  // 36: messaging_pb.SeaweedMessaging.CheckSegmentStatus:output_type -> messaging_pb.CheckSegmentStatusResponse
-	11, // 37: messaging_pb.SeaweedMessaging.CheckBrokerLoad:output_type -> messaging_pb.CheckBrokerLoadResponse
-	13, // 38: messaging_pb.SeaweedMessaging.FindTopicBrokers:output_type -> messaging_pb.FindTopicBrokersResponse
-	17, // 39: messaging_pb.SeaweedMessaging.RequestTopicPartitions:output_type -> messaging_pb.RequestTopicPartitionsResponse
-	19, // 40: messaging_pb.SeaweedMessaging.AssignTopicPartitions:output_type -> messaging_pb.AssignTopicPartitionsResponse
-	21, // 41: messaging_pb.SeaweedMessaging.CheckTopicPartitionsStatus:output_type -> messaging_pb.CheckTopicPartitionsStatusResponse
-	24, // 42: messaging_pb.SeaweedMessaging.Publish:output_type -> messaging_pb.PublishResponse
-	26, // 43: messaging_pb.SeaweedMessaging.Subscribe:output_type -> messaging_pb.SubscribeResponse
-	34, // [34:44] is the sub-list for method output_type
-	24, // [24:34] is the sub-list for method input_type
-	24, // [24:24] is the sub-list for extension type_name
-	24, // [24:24] is the sub-list for extension extendee
-	0,  // [0:24] is the sub-list for field type_name
+	29, // 17: messaging_pb.SubscribeResponse.ctrl:type_name -> messaging_pb.SubscribeResponse.CtrlMessage
+	22, // 18: messaging_pb.SubscribeResponse.data:type_name -> messaging_pb.DataMessage
+	3,  // 19: messaging_pb.PublishRequest.InitMessage.topic:type_name -> messaging_pb.Topic
+	4,  // 20: messaging_pb.PublishRequest.InitMessage.partition:type_name -> messaging_pb.Partition
+	3,  // 21: messaging_pb.SubscribeRequest.InitMessage.topic:type_name -> messaging_pb.Topic
+	4,  // 22: messaging_pb.SubscribeRequest.InitMessage.partition:type_name -> messaging_pb.Partition
+	1,  // 23: messaging_pb.SeaweedMessaging.FindBrokerLeader:input_type -> messaging_pb.FindBrokerLeaderRequest
+	6,  // 24: messaging_pb.SeaweedMessaging.AssignSegmentBrokers:input_type -> messaging_pb.AssignSegmentBrokersRequest
+	8,  // 25: messaging_pb.SeaweedMessaging.CheckSegmentStatus:input_type -> messaging_pb.CheckSegmentStatusRequest
+	10, // 26: messaging_pb.SeaweedMessaging.CheckBrokerLoad:input_type -> messaging_pb.CheckBrokerLoadRequest
+	12, // 27: messaging_pb.SeaweedMessaging.FindTopicBrokers:input_type -> messaging_pb.FindTopicBrokersRequest
+	16, // 28: messaging_pb.SeaweedMessaging.RequestTopicPartitions:input_type -> messaging_pb.RequestTopicPartitionsRequest
+	18, // 29: messaging_pb.SeaweedMessaging.AssignTopicPartitions:input_type -> messaging_pb.AssignTopicPartitionsRequest
+	20, // 30: messaging_pb.SeaweedMessaging.CheckTopicPartitionsStatus:input_type -> messaging_pb.CheckTopicPartitionsStatusRequest
+	23, // 31: messaging_pb.SeaweedMessaging.Publish:input_type -> messaging_pb.PublishRequest
+	25, // 32: messaging_pb.SeaweedMessaging.Subscribe:input_type -> messaging_pb.SubscribeRequest
+	2,  // 33: messaging_pb.SeaweedMessaging.FindBrokerLeader:output_type -> messaging_pb.FindBrokerLeaderResponse
+	7,  // 34: messaging_pb.SeaweedMessaging.AssignSegmentBrokers:output_type -> messaging_pb.AssignSegmentBrokersResponse
+	9,  // 35: messaging_pb.SeaweedMessaging.CheckSegmentStatus:output_type -> messaging_pb.CheckSegmentStatusResponse
+	11, // 36: messaging_pb.SeaweedMessaging.CheckBrokerLoad:output_type -> messaging_pb.CheckBrokerLoadResponse
+	13, // 37: messaging_pb.SeaweedMessaging.FindTopicBrokers:output_type -> messaging_pb.FindTopicBrokersResponse
+	17, // 38: messaging_pb.SeaweedMessaging.RequestTopicPartitions:output_type -> messaging_pb.RequestTopicPartitionsResponse
+	19, // 39: messaging_pb.SeaweedMessaging.AssignTopicPartitions:output_type -> messaging_pb.AssignTopicPartitionsResponse
+	21, // 40: messaging_pb.SeaweedMessaging.CheckTopicPartitionsStatus:output_type -> messaging_pb.CheckTopicPartitionsStatusResponse
+	24, // 41: messaging_pb.SeaweedMessaging.Publish:output_type -> messaging_pb.PublishResponse
+	26, // 42: messaging_pb.SeaweedMessaging.Subscribe:output_type -> messaging_pb.SubscribeResponse
+	33, // [33:43] is the sub-list for method output_type
+	23, // [23:33] is the sub-list for method input_type
+	23, // [23:23] is the sub-list for extension type_name
+	23, // [23:23] is the sub-list for extension extendee
+	0,  // [0:23] is the sub-list for field type_name
 }
 
 func init() { file_mq_proto_init() }
@@ -2541,10 +2502,6 @@ func file_mq_proto_init() {
 		(*PublishRequest_Init)(nil),
 		(*PublishRequest_Data)(nil),
 	}
-	file_mq_proto_msgTypes[25].OneofWrappers = []interface{}{
-		(*SubscribeRequest_Init)(nil),
-		(*SubscribeRequest_Data)(nil),
-	}
 	file_mq_proto_msgTypes[26].OneofWrappers = []interface{}{
 		(*SubscribeResponse_Ctrl)(nil),
 		(*SubscribeResponse_Data)(nil),
diff --git a/weed/pb/mq_pb/mq_grpc.pb.go b/weed/pb/mq_pb/mq_grpc.pb.go
index f655c4e5b..2b8d11cc8 100644
--- a/weed/pb/mq_pb/mq_grpc.pb.go
+++ b/weed/pb/mq_pb/mq_grpc.pb.go
@@ -35,7 +35,7 @@ type SeaweedMessagingClient interface {
 	CheckTopicPartitionsStatus(ctx context.Context, in *CheckTopicPartitionsStatusRequest, opts ...grpc.CallOption) (*CheckTopicPartitionsStatusResponse, error)
 	// data plane
 	Publish(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_PublishClient, error)
-	Subscribe(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_SubscribeClient, error)
+	Subscribe(ctx context.Context, in *SubscribeRequest, opts ...grpc.CallOption) (SeaweedMessaging_SubscribeClient, error)
 }
 
 type seaweedMessagingClient struct {
@@ -149,17 +149,22 @@ func (x *seaweedMessagingPublishClient) Recv() (*PublishResponse, error) {
 	return m, nil
 }
 
-func (c *seaweedMessagingClient) Subscribe(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_SubscribeClient, error) {
+func (c *seaweedMessagingClient) Subscribe(ctx context.Context, in *SubscribeRequest, opts ...grpc.CallOption) (SeaweedMessaging_SubscribeClient, error) {
 	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[1], "/messaging_pb.SeaweedMessaging/Subscribe", opts...)
 	if err != nil {
 		return nil, err
 	}
 	x := &seaweedMessagingSubscribeClient{stream}
+	if err := x.ClientStream.SendMsg(in); err != nil {
+		return nil, err
+	}
+	if err := x.ClientStream.CloseSend(); err != nil {
+		return nil, err
+	}
 	return x, nil
 }
 
 type SeaweedMessaging_SubscribeClient interface {
-	Send(*SubscribeRequest) error
 	Recv() (*SubscribeResponse, error)
 	grpc.ClientStream
 }
@@ -168,10 +173,6 @@ type seaweedMessagingSubscribeClient struct {
 	grpc.ClientStream
 }
 
-func (x *seaweedMessagingSubscribeClient) Send(m *SubscribeRequest) error {
-	return x.ClientStream.SendMsg(m)
-}
-
 func (x *seaweedMessagingSubscribeClient) Recv() (*SubscribeResponse, error) {
 	m := new(SubscribeResponse)
 	if err := x.ClientStream.RecvMsg(m); err != nil {
@@ -197,7 +198,7 @@ type SeaweedMessagingServer interface {
 	CheckTopicPartitionsStatus(context.Context, *CheckTopicPartitionsStatusRequest) (*CheckTopicPartitionsStatusResponse, error)
 	// data plane
 	Publish(SeaweedMessaging_PublishServer) error
-	Subscribe(SeaweedMessaging_SubscribeServer) error
+	Subscribe(*SubscribeRequest, SeaweedMessaging_SubscribeServer) error
 	mustEmbedUnimplementedSeaweedMessagingServer()
 }
 
@@ -232,7 +233,7 @@ func (UnimplementedSeaweedMessagingServer) CheckTopicPartitionsStatus(context.Co
 func (UnimplementedSeaweedMessagingServer) Publish(SeaweedMessaging_PublishServer) error {
 	return status.Errorf(codes.Unimplemented, "method Publish not implemented")
 }
-func (UnimplementedSeaweedMessagingServer) Subscribe(SeaweedMessaging_SubscribeServer) error {
+func (UnimplementedSeaweedMessagingServer) Subscribe(*SubscribeRequest, SeaweedMessaging_SubscribeServer) error {
 	return status.Errorf(codes.Unimplemented, "method Subscribe not implemented")
 }
 func (UnimplementedSeaweedMessagingServer) mustEmbedUnimplementedSeaweedMessagingServer() {}
@@ -419,12 +420,15 @@ func (x *seaweedMessagingPublishServer) Recv() (*PublishRequest, error) {
 }
 
 func _SeaweedMessaging_Subscribe_Handler(srv interface{}, stream grpc.ServerStream) error {
-	return srv.(SeaweedMessagingServer).Subscribe(&seaweedMessagingSubscribeServer{stream})
+	m := new(SubscribeRequest)
+	if err := stream.RecvMsg(m); err != nil {
+		return err
+	}
+	return srv.(SeaweedMessagingServer).Subscribe(m, &seaweedMessagingSubscribeServer{stream})
 }
 
 type SeaweedMessaging_SubscribeServer interface {
 	Send(*SubscribeResponse) error
-	Recv() (*SubscribeRequest, error)
 	grpc.ServerStream
 }
 
@@ -436,14 +440,6 @@ func (x *seaweedMessagingSubscribeServer) Send(m *SubscribeResponse) error {
 	return x.ServerStream.SendMsg(m)
 }
 
-func (x *seaweedMessagingSubscribeServer) Recv() (*SubscribeRequest, error) {
-	m := new(SubscribeRequest)
-	if err := x.ServerStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
 // SeaweedMessaging_ServiceDesc is the grpc.ServiceDesc for SeaweedMessaging service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -495,7 +491,6 @@ var SeaweedMessaging_ServiceDesc = grpc.ServiceDesc{
 			StreamName:    "Subscribe",
 			Handler:       _SeaweedMessaging_Subscribe_Handler,
 			ServerStreams: true,
-			ClientStreams: true,
 		},
 	},
 	Metadata: "mq.proto",