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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.shared.jar.identification.repository;
20  
21  import javax.inject.Named;
22  import javax.inject.Singleton;
23  
24  import java.util.Collections;
25  import java.util.List;
26  
27  import org.apache.maven.artifact.Artifact;
28  
29  /**
30   * Empty repository hash search.  Always returns an empty list.
31   *
32   * Used for local only implementation of a RepositoryHashSearch. It is expected for the users of this library to provide
33   * an implementation of a {@link org.apache.maven.shared.jar.identification.repository.RepositoryHashSearch} against a
34   * real repository.
35   */
36  @Singleton
37  @Named("empty")
38  public class EmptyRepositoryHashSearch implements RepositoryHashSearch {
39      public List<Artifact> searchBytecodeHash(String hash) {
40          return Collections.emptyList();
41      }
42  
43      public List<Artifact> searchFileHash(String hash) {
44          return Collections.emptyList();
45      }
46  }