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1   package org.eclipse.aether.util.concurrency;
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.Future;
23  import java.util.concurrent.TimeUnit;
24  
25  /**
26   * Wraps a result value as a Future.
27   *
28   * @param <T> result type
29   */
30  public class FutureResult<T>
31      implements Future<T>
32  {
33      private final T value;
34  
35      public FutureResult( T value )
36      {
37          this.value = value;
38      }
39  
40      @Override
41      public boolean cancel( boolean mayInterruptIfRunning )
42      {
43          return false;
44      }
45  
46      @Override
47      public boolean isCancelled()
48      {
49          return false;
50      }
51  
52      @Override
53      public boolean isDone()
54      {
55          return true;
56      }
57  
58      @Override
59      public T get()
60      {
61          return value;
62      }
63  
64      @Override
65      public T get( long timeout, TimeUnit unit )
66      {
67          return value;
68      }
69  }