blob: 779c46a3f0d94470377e7a4fee067787f4bb654f (
plain) (
blame)
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
|
// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.curator.recipes;
import com.yahoo.vespa.curator.Curator;
import org.apache.curator.framework.recipes.locks.InterProcessLock;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
/**
* @author lulf
* @since 5.1
*/
public class CuratorLock implements Lock {
private final InterProcessLock mutex;
public CuratorLock(Curator curator, String lockPath) {
this.mutex = curator.createMutex(lockPath);
}
public boolean hasLock() {
return mutex.isAcquiredInThisProcess();
}
@Override
public void lock() {
try {
mutex.acquire();
} catch (Exception e) {
throw new CuratorLockException(e);
}
}
@Override
public void lockInterruptibly() throws InterruptedException {
throw new UnsupportedOperationException();
}
@Override
public boolean tryLock() {
try {
return tryLock(0, TimeUnit.MILLISECONDS);
} catch (InterruptedException e) {
throw new CuratorLockException(e);
}
}
@Override
public boolean tryLock(long time, TimeUnit unit) throws InterruptedException {
try {
return mutex.acquire(time, unit);
} catch (InterruptedException e) {
throw e;
} catch (Exception e) {
throw new CuratorLockException(e);
}
}
@Override
public void unlock() {
try {
mutex.release();
} catch (Exception e) {
throw new CuratorLockException(e);
}
}
@Override
public Condition newCondition() {
throw new UnsupportedOperationException();
}
@Override
public String toString() {
return mutex.toString();
}
}
|