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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   */
27  public class ScopeArtifactFilter
28      extends AbstractScopeArtifactFilter
29  {
30  
31      private final String scope;
32  
33      public ScopeArtifactFilter( String scope )
34      {
35          this.scope = scope;
36  
37          addScopeInternal( scope );
38      }
39  
40      public String getScope()
41      {
42          return scope;
43      }
44  
45      @Override
46      public int hashCode()
47      {
48          int hash = 17;
49  
50          hash = hash * 31 + ( scope != null ? scope.hashCode() : 0 );
51  
52          return hash;
53      }
54  
55      @Override
56      public boolean equals( Object obj )
57      {
58          if ( this == obj )
59          {
60              return true;
61          }
62  
63          if ( !( obj instanceof ScopeArtifactFilter ) )
64          {
65              return false;
66          }
67  
68          ScopeArtifactFilter other = (ScopeArtifactFilter) obj;
69  
70          return equals( scope, other.scope );
71      }
72  
73      private static <T> boolean equals( T str1, T str2 )
74      {
75          return str1 != null ? str1.equals( str2 ) : str2 == null;
76      }
77  
78  }