sub

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{