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1   package org.apache.maven.artifact.resolver.filter;
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  /**
23   * Filter to only retain objects in the given artifactScope or better.
24   *
25   * @author <a href="mailto:brett@apache.org">Brett Porter</a>
26   * @version $Id: ScopeArtifactFilter.java 829934 2009-10-26 20:16:00Z bentmann $
27   */
28  public class ScopeArtifactFilter
29      extends AbstractScopeArtifactFilter
30  {
31  
32      private final String scope;
33  
34      public ScopeArtifactFilter( String scope )
35      {
36          this.scope = scope;
37  
38          addScopeInternal( scope );
39      }
40  
41      public String getScope()
42      {
43          return scope;
44      }
45  
46      @Override
47      public int hashCode()
48      {
49          int hash = 17;
50  
51          hash = hash * 31 + ( scope != null ? scope.hashCode() : 0 );
52  
53          return hash;
54      }
55  
56      @Override
57      public boolean equals( Object obj )
58      {
59          if ( this == obj )
60          {
61              return true;
62          }
63  
64          if ( !( obj instanceof ScopeArtifactFilter ) )
65          {
66              return false;
67          }
68  
69          ScopeArtifactFilter other = (ScopeArtifactFilter) obj;
70  
71          return equals( scope, other.scope );
72      }
73  
74      private static <T> boolean equals( T str1, T str2 )
75      {
76          return str1 != null ? str1.equals( str2 ) : str2 == null;
77      }
78  
79  }