fix listing topics

weed/mq/balancer/balancer.go

@@ -3,6 +3,7 @@ package balancer
 import (
 	"fmt"
 	cmap "github.com/orcaman/concurrent-map/v2"
+	"github.com/seaweedfs/seaweedfs/weed/mq/topic"
 	"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
 )
 
@@ -30,7 +31,7 @@ func (bs *BrokerStats) UpdateStats(stats *mq_pb.BrokerStats) {
 	currentTopicPartitions := bs.Stats.Items()
 	for _, topicPartitionStats := range stats.Stats {
 		tps := &TopicPartitionStats{
-			TopicPartition: TopicPartition{
+			TopicPartition: topic.TopicPartition{
 				Namespace:  topicPartitionStats.Topic.Namespace,
 				Topic:      topicPartitionStats.Topic.Name,
 				RangeStart: topicPartitionStats.Partition.RangeStart,
@@ -52,20 +53,28 @@ func (bs *BrokerStats) UpdateStats(stats *mq_pb.BrokerStats) {
 
 }
 
+func (bs *BrokerStats) RegisterAssignment(t *mq_pb.Topic, partition *mq_pb.Partition) {
+	tps := &TopicPartitionStats{
+		TopicPartition: topic.TopicPartition{
+			Namespace:  t.Namespace,
+			Topic:      t.Name,
+			RangeStart: partition.RangeStart,
+			RangeStop:  partition.RangeStop,
+		},
+		ConsumerCount: 0,
+		IsLeader:      true,
+	}
+	key := tps.TopicPartition.String()
+	bs.Stats.Set(key, tps)
+}
+
 func (bs *BrokerStats) String() string {
 	return fmt.Sprintf("BrokerStats{TopicPartitionCount:%d, ConsumerCount:%d, CpuUsagePercent:%d, Stats:%+v}",
 		bs.TopicPartitionCount, bs.ConsumerCount, bs.CpuUsagePercent, bs.Stats.Items())
 }
 
-type TopicPartition struct {
-	Namespace  string
-	Topic      string
-	RangeStart int32
-	RangeStop  int32
-}
-
 type TopicPartitionStats struct {
-	TopicPartition
+	topic.TopicPartition
 	ConsumerCount int32
 	IsLeader      bool
 }
@@ -81,7 +90,3 @@ func NewBrokerStats() *BrokerStats {
 		Stats: cmap.New[*TopicPartitionStats](),
 	}
 }
-
-func (tp *TopicPartition) String() string {
-	return fmt.Sprintf("%v.%v-%04d-%04d", tp.Namespace, tp.Topic, tp.RangeStart, tp.RangeStop)
-}