1 package org.eclipse.aether.named.providers;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.util.concurrent.TimeUnit;
23
24 import javax.inject.Named;
25 import javax.inject.Singleton;
26
27 import org.eclipse.aether.named.support.NamedLockFactorySupport;
28 import org.eclipse.aether.named.support.NamedLockSupport;
29
30 /**
31 * A no-op lock factory, that creates no-op locks.
32 */
33 @Singleton
34 @Named( NoopNamedLockFactory.NAME )
35 public class NoopNamedLockFactory
36 extends NamedLockFactorySupport
37 {
38 public static final String NAME = "noop";
39
40 @Override
41 protected NoopNamedLock createLock( final String name )
42 {
43 return new NoopNamedLock( name, this );
44 }
45
46 private static final class NoopNamedLock extends NamedLockSupport
47 {
48 private NoopNamedLock( final String name, final NamedLockFactorySupport factory )
49 {
50 super( name, factory );
51 }
52
53 @Override
54 public boolean lockShared( final long time, final TimeUnit unit )
55 {
56 return true;
57 }
58
59 @Override
60 public boolean lockExclusively( final long time, final TimeUnit unit )
61 {
62 return true;
63 }
64
65 @Override
66 public void unlock()
67 {
68 // no-op
69 }
70 }
71 }