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1   package org.eclipse.aether.named.hazelcast;
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 com.hazelcast.client.HazelcastClient;
23  
24  import javax.inject.Inject;
25  import javax.inject.Named;
26  import javax.inject.Singleton;
27  
28  /**
29   * Provider of {@link HazelcastSemaphoreNamedLockFactory} using Hazelcast Client and {@link
30   * com.hazelcast.core.HazelcastInstance#getCPSubsystem()} method to get CP semaphore. For this to work, the Hazelcast
31   * cluster the client is connecting to must be CP enabled cluster.
32   */
33  @Singleton
34  @Named( HazelcastClientCPSemaphoreNamedLockFactory.NAME )
35  public class HazelcastClientCPSemaphoreNamedLockFactory
36      extends HazelcastSemaphoreNamedLockFactory
37  {
38    public static final String NAME = "semaphore-hazelcast-client";
39  
40    @Inject
41    public HazelcastClientCPSemaphoreNamedLockFactory()
42    {
43      super(
44          HazelcastClient.newHazelcastClient(),
45          ( hazelcastInstance, name ) -> hazelcastInstance.getCPSubsystem().getSemaphore( NAME_PREFIX + name ),
46          false,
47          true
48      );
49    }
50  }