RobertIndie commented on code in PR #1210:
URL: https://github.com/apache/pulsar-client-go/pull/1210#discussion_r1610912960


##########
pulsar/internal/connection.go:
##########
@@ -928,6 +937,51 @@ func (c *connection) handleCloseProducer(closeProducer 
*pb.CommandCloseProducer)
        }
 }
 
+func (c *connection) getMigratedBrokerServiceURL(commandTopicMigrated 
*pb.CommandTopicMigrated) string {
+       if c.tlsOptions == nil {
+               if commandTopicMigrated.GetBrokerServiceUrl() != "" {
+                       return commandTopicMigrated.GetBrokerServiceUrl()
+               }
+       } else if commandTopicMigrated.GetBrokerServiceUrlTls() != "" {
+               return commandTopicMigrated.GetBrokerServiceUrlTls()
+       }
+       return ""
+}
+
+func (c *connection) handleTopicMigrated(commandTopicMigrated 
*pb.CommandTopicMigrated) {
+       resourceID := commandTopicMigrated.GetResourceId()
+       migratedBrokerServiceURL := 
c.getMigratedBrokerServiceURL(commandTopicMigrated)
+       if migratedBrokerServiceURL == "" {
+               c.log.Warnf("Failed to find the migrated broker url for 
resource: %s, migratedBrokerUrl: %s, migratedBrokerUrlTls:%s",
+                       resourceID,
+                       commandTopicMigrated.GetBrokerServiceUrl(),
+                       commandTopicMigrated.GetBrokerServiceUrlTls())
+               return
+       }
+       if commandTopicMigrated.ResourceType.Number() == 0 {

Review Comment:
   Can we use the const value `pb.CommandTopicMigrated_Producer` here?



##########
pulsar/internal/connection.go:
##########
@@ -928,6 +937,51 @@ func (c *connection) handleCloseProducer(closeProducer 
*pb.CommandCloseProducer)
        }
 }
 
+func (c *connection) getMigratedBrokerServiceURL(commandTopicMigrated 
*pb.CommandTopicMigrated) string {
+       if c.tlsOptions == nil {
+               if commandTopicMigrated.GetBrokerServiceUrl() != "" {
+                       return commandTopicMigrated.GetBrokerServiceUrl()
+               }
+       } else if commandTopicMigrated.GetBrokerServiceUrlTls() != "" {
+               return commandTopicMigrated.GetBrokerServiceUrlTls()
+       }
+       return ""
+}
+
+func (c *connection) handleTopicMigrated(commandTopicMigrated 
*pb.CommandTopicMigrated) {
+       resourceID := commandTopicMigrated.GetResourceId()
+       migratedBrokerServiceURL := 
c.getMigratedBrokerServiceURL(commandTopicMigrated)
+       if migratedBrokerServiceURL == "" {
+               c.log.Warnf("Failed to find the migrated broker url for 
resource: %s, migratedBrokerUrl: %s, migratedBrokerUrlTls:%s",
+                       resourceID,
+                       commandTopicMigrated.GetBrokerServiceUrl(),
+                       commandTopicMigrated.GetBrokerServiceUrlTls())
+               return
+       }
+       if commandTopicMigrated.ResourceType.Number() == 0 {
+               c.listenersLock.RLock()
+               producer, ok := c.listeners[resourceID]
+               c.listenersLock.RUnlock()
+               if ok {
+                       
producer.SetRedirectedClusterURI(migratedBrokerServiceURL)
+                       c.log.Infof("producerID:{%d} migrated to 
RedirectedClusterURI:{%s}",
+                               resourceID, migratedBrokerServiceURL)
+               } else {
+                       c.log.WithField("producerID", resourceID).Warn("Failed 
to SetRedirectedClusterURI")
+               }
+       } else {
+               consumer, ok := c.consumerHandler(resourceID)

Review Comment:
   Can we also register the consumer as a listener? This way, we won't need two 
separate logic.



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