77 lines
1.8 KiB
Go
77 lines
1.8 KiB
Go
// Copyright 2015 CoreOS, Inc.
|
|
//
|
|
// 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 raft
|
|
|
|
import (
|
|
"fmt"
|
|
"log"
|
|
|
|
pb "github.com/coreos/etcd/raft/raftpb"
|
|
)
|
|
|
|
type Status struct {
|
|
ID uint64
|
|
|
|
pb.HardState
|
|
SoftState
|
|
|
|
Applied uint64
|
|
Progress map[uint64]Progress
|
|
}
|
|
|
|
// getStatus gets a copy of the current raft status.
|
|
func getStatus(r *raft) Status {
|
|
s := Status{ID: r.id}
|
|
s.HardState = r.HardState
|
|
s.SoftState = *r.softState()
|
|
|
|
s.Applied = r.raftLog.applied
|
|
|
|
if s.RaftState == StateLeader {
|
|
s.Progress = make(map[uint64]Progress)
|
|
for id, p := range r.prs {
|
|
s.Progress[id] = *p
|
|
}
|
|
}
|
|
|
|
return s
|
|
}
|
|
|
|
// TODO: try to simplify this by introducing ID type into raft
|
|
func (s Status) MarshalJSON() ([]byte, error) {
|
|
j := fmt.Sprintf(`{"id":"%x","term":%d,"vote":"%x","commit":%d,"lead":"%x","raftState":"%s","progress":{`,
|
|
s.ID, s.Term, s.Vote, s.Commit, s.Lead, s.RaftState)
|
|
|
|
if len(s.Progress) == 0 {
|
|
j += "}}"
|
|
} else {
|
|
for k, v := range s.Progress {
|
|
subj := fmt.Sprintf(`"%x":{"match":%d,"next":%d},`, k, v.Match, v.Next)
|
|
j += subj
|
|
}
|
|
// remove the trailing ","
|
|
j = j[:len(j)-1] + "}}"
|
|
}
|
|
return []byte(j), nil
|
|
}
|
|
|
|
func (s Status) String() string {
|
|
b, err := s.MarshalJSON()
|
|
if err != nil {
|
|
log.Panicf("unexpected error: %v", err)
|
|
}
|
|
return string(b)
|
|
}
|