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