package shell import ( "context" "encoding/json" "flag" "fmt" "github.com/seaweedfs/seaweedfs/weed/pb" "github.com/seaweedfs/seaweedfs/weed/pb/mq_pb" "io" ) func init() { Commands = append(Commands, &commandMqTopicConfigure{}) } type commandMqTopicConfigure struct { } func (c *commandMqTopicConfigure) Name() string { return "mq.topic.configure" } func (c *commandMqTopicConfigure) Help() string { return `configure a topic with a given name Example: mq.topic.configure -namespace -topic -partition_count ` } func (c *commandMqTopicConfigure) HasTag(CommandTag) bool { return false } func (c *commandMqTopicConfigure) Do(args []string, commandEnv *CommandEnv, writer io.Writer) error { // parse parameters mqCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError) namespace := mqCommand.String("namespace", "", "namespace name") topicName := mqCommand.String("topic", "", "topic name") partitionCount := mqCommand.Int("partitionCount", 6, "partition count") if err := mqCommand.Parse(args); err != nil { return err } // find the broker balancer brokerBalancer, err := findBrokerBalancer(commandEnv) if err != nil { return err } fmt.Fprintf(writer, "current balancer: %s\n", brokerBalancer) // create topic return pb.WithBrokerGrpcClient(false, brokerBalancer, commandEnv.option.GrpcDialOption, func(client mq_pb.SeaweedMessagingClient) error { resp, err := client.ConfigureTopic(context.Background(), &mq_pb.ConfigureTopicRequest{ Topic: &mq_pb.Topic{ Namespace: *namespace, Name: *topicName, }, PartitionCount: int32(*partitionCount), }) if err != nil { return err } output, _ := json.MarshalIndent(resp, "", " ") fmt.Fprintf(writer, "response:\n%+v\n", string(output)) return nil }) }