1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*
* Copyright 2014-2015 Open Networking Laboratory
*
* 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 org.onosproject.cluster;
import java.util.Objects;
import org.onosproject.event.AbstractEvent;
import com.google.common.base.MoreObjects;
/**
* Describes leadership-related event.
*/
public class LeadershipEvent extends AbstractEvent<LeadershipEvent.Type, Leadership> {
/**
* Type of leadership-related events.
*/
public enum Type {
/**
* Signifies that the leader has been elected. The event subject is the
* new leader.
*/
LEADER_ELECTED,
/**
* Signifies that the leader has been re-elected. The event subject is the
* leader.
*/
LEADER_REELECTED,
/**
* Signifies that the leader has been booted and lost leadership. The
* event subject is the former leader.
*/
LEADER_BOOTED,
/**
* Signifies that the list of candidates for leadership for a topic has
* changed. This event does not guarantee accurate leader information.
*/
CANDIDATES_CHANGED
}
/**
* Creates an event of a given type and for the specified instance and the
* current time.
*
* @param type leadership event type
* @param leadership event subject
*/
public LeadershipEvent(Type type, Leadership leadership) {
super(type, leadership);
}
/**
* Creates an event of a given type and for the specified subject and time.
*
* @param type leadership event type
* @param leadership event subject
* @param time occurrence time
*/
public LeadershipEvent(Type type, Leadership leadership, long time) {
super(type, leadership, time);
}
@Override
public int hashCode() {
return Objects.hash(type(), subject(), time());
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof LeadershipEvent) {
final LeadershipEvent other = (LeadershipEvent) obj;
return Objects.equals(this.type(), other.type()) &&
Objects.equals(this.subject(), other.subject()) &&
Objects.equals(this.time(), other.time());
}
return false;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this.getClass())
.add("type", type())
.add("subject", subject())
.add("time", time())
.toString();
}
}
|