mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
c09aca1ba4
Motivation is as follows: - etcdctl we only depend on clientv3 APIs, no dependencies of bolt, backend, mvcc, file-layout - etcdctl can be officially supported across wide range of versions, while etcdutl is pretty specific to file format at particular version. it's step towards desired modules layout, documented in: https://etcd.io/docs/next/dev-internal/modules/
102 lines
2.5 KiB
Go
102 lines
2.5 KiB
Go
// Copyright 2016 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package command
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"os"
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"strconv"
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"go.etcd.io/etcd/client/v3"
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)
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type jsonPrinter struct {
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isHex bool
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printer
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}
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func newJSONPrinter(isHex bool) printer {
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return &jsonPrinter{
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isHex: isHex,
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printer: &printerRPC{newPrinterUnsupported("json"), printJSON},
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}
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}
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func (p *jsonPrinter) EndpointHealth(r []epHealth) { printJSON(r) }
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func (p *jsonPrinter) EndpointStatus(r []epStatus) { printJSON(r) }
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func (p *jsonPrinter) EndpointHashKV(r []epHashKV) { printJSON(r) }
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func (p *jsonPrinter) MemberList(r clientv3.MemberListResponse) {
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if p.isHex {
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printMemberListWithHexJSON(r)
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} else {
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printJSON(r)
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}
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}
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func printJSON(v interface{}) {
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b, err := json.Marshal(v)
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if err != nil {
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fmt.Fprintf(os.Stderr, "%v\n", err)
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return
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}
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fmt.Println(string(b))
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}
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func printMemberListWithHexJSON(r clientv3.MemberListResponse) {
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var buffer bytes.Buffer
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var b []byte
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buffer.WriteString("{\"header\":{\"cluster_id\":\"")
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b = strconv.AppendUint(nil, r.Header.ClusterId, 16)
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buffer.Write(b)
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buffer.WriteString("\",\"member_id\":\"")
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b = strconv.AppendUint(nil, r.Header.MemberId, 16)
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buffer.Write(b)
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buffer.WriteString("\",\"raft_term\":")
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b = strconv.AppendUint(nil, r.Header.RaftTerm, 16)
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buffer.Write(b)
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buffer.WriteByte('}')
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for i := 0; i < len(r.Members); i++ {
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if i == 0 {
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buffer.WriteString(",\"members\":[{\"ID\":\"")
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} else {
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buffer.WriteString(",{\"ID\":\"")
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}
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b = strconv.AppendUint(nil, r.Members[i].ID, 16)
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buffer.Write(b)
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buffer.WriteString("\",\"name\":\"" + r.Members[i].Name + "\"," + "\"peerURLs\":")
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b, err := json.Marshal(r.Members[i].PeerURLs)
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if err != nil {
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return
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}
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buffer.Write(b)
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buffer.WriteString(",\"clientURLS\":")
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b, err = json.Marshal(r.Members[i].ClientURLs)
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if err != nil {
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return
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}
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buffer.Write(b)
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buffer.WriteByte('}')
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if i == len(r.Members)-1 {
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buffer.WriteString("]")
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}
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}
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buffer.WriteString("}")
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fmt.Println(buffer.String())
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}
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