/
GroupMember.java
87 lines (78 loc) · 2.64 KB
/
GroupMember.java
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
/*
* Copyright 2015 the original author or authors.
*
* 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 io.atomix.copycat.coordination;
import io.atomix.catalyst.util.Assert;
import io.atomix.copycat.coordination.state.MembershipGroupCommands;
import java.time.Duration;
import java.time.Instant;
import java.util.concurrent.CompletableFuture;
/**
* Group member.
*
* @author <a href="http://github.com/kuujo>Jordan Halterman</a>
*/
public class GroupMember {
private final long memberId;
private final DistributedMembershipGroup group;
GroupMember(long memberId, DistributedMembershipGroup group) {
this.memberId = memberId;
this.group = Assert.notNull(group, "group");
}
/**
* Returns the member ID.
*
* @return The member ID.
*/
public long id() {
return memberId;
}
/**
* Schedules a callback to run at the given instant.
*
* @param instant The instant at which to run the callback.
* @param callback The callback to run.
* @return A completable future to be completed once the callback has been scheduled.
*/
public CompletableFuture<Void> schedule(Instant instant, Runnable callback) {
return schedule(instant.minusMillis(System.currentTimeMillis()), callback);
}
/**
* Schedules a callback to run after the given delay on the member.
*
* @param delay The delay after which to run the callback.
* @param callback The callback to run.
* @return A completable future to be completed once the callback has been scheduled.
*/
public CompletableFuture<Void> schedule(Duration delay, Runnable callback) {
return group.submit(MembershipGroupCommands.Schedule.builder()
.withMember(memberId)
.withDelay(delay.toMillis())
.withCallback(callback)
.build());
}
/**
* Executes a callback on the group member.
*
* @param callback The callback to execute.
* @return A completable future to be completed once the callback has completed.
*/
public CompletableFuture<Void> execute(Runnable callback) {
return group.submit(MembershipGroupCommands.Execute.builder()
.withMember(memberId)
.withCallback(callback)
.build());
}
}