/
topics.go
106 lines (90 loc) · 2.5 KB
/
topics.go
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// Copyright © 2017 NAME HERE <EMAIL ADDRESS>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"fmt"
"os"
"github.com/Shopify/sarama"
"github.com/spf13/cobra"
)
type Topic struct {
Name string
Partitions []int32 //partition ids
Replicas [][]int32 //replica id of partition
LatestOffset []int64 //latest offset of partition
}
func (t Topic) String() string {
topic := fmt.Sprintf("%-15s\t", t.Name)
for _, p := range t.Partitions {
topic += fmt.Sprintf("%d%d:%d ", p, t.Replicas[p], t.LatestOffset[p])
}
return topic
}
func displayTopics() {
names, err := c.Topics()
if err != nil {
fmt.Println(err)
os.Exit(-1)
}
fmt.Printf("%-15s\tpartition[replicaid...]:offset ...\n", "topic")
fmt.Printf("--------------------------------------------------\n")
for i := range names {
t := Topic{Name: names[i]}
ps, err := c.Partitions(names[i])
if err != nil {
fmt.Println(err)
os.Exit(-1)
}
if len(ps) < 1 {
continue
}
replicas := make([][]int32, ps[len(ps)-1]+1)
offsets := make([]int64, ps[len(ps)-1]+1)
for _, p := range ps {
rs, err := c.Replicas(names[i], p)
if err != nil {
fmt.Println(err)
os.Exit(-1)
}
replicas[p] = rs
ofs, err := c.GetOffset(names[i], p, sarama.OffsetNewest)
if err != nil {
fmt.Println(err)
os.Exit(-1)
}
offsets[p] = ofs
}
t.Partitions = ps
t.Replicas = replicas
t.LatestOffset = offsets
fmt.Println(t)
}
}
// topicCmd represents the topic command
var topicsCmd = &cobra.Command{
Use: "topics",
Short: "list all topics",
Run: func(cmd *cobra.Command, args []string) {
displayTopics()
},
}
func init() {
RootCmd.AddCommand(topicsCmd)
// Here you will define your flags and configuration settings.
// Cobra supports Persistent Flags which will work for this command
// and all subcommands, e.g.:
// topicCmd.PersistentFlags().String("foo", "", "A help for foo")
// Cobra supports local flags which will only run when this command
// is called directly, e.g.:
}