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1   package org.apache.maven.shared.dependency.graph.internal.maven30;
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 org.apache.maven.shared.dependency.graph.internal.maven30.ConflictResolver.ScopeContext;
23  import org.apache.maven.shared.dependency.graph.internal.maven30.ConflictResolver.ScopeDeriver;
24  import org.sonatype.aether.RepositoryException;
25  import org.sonatype.aether.util.artifact.JavaScopes;
26  
27  /**
28   * This class is a copy of their homonymous in the Eclipse Aether library, adapted to work with Sonatype Aether.
29   * 
30   * @author Gabriel Belingueres
31   * @since 3.1.0
32   */
33  public class JavaScopeDeriver
34      extends ScopeDeriver
35  {
36  
37      @Override
38      public void deriveScope( ScopeContext context )
39          throws RepositoryException
40      {
41          context.setDerivedScope( getDerivedScope( context.getParentScope(), context.getChildScope() ) );
42      }
43  
44      private String getDerivedScope( String parentScope, String childScope )
45      {
46          String derivedScope;
47  
48          if ( JavaScopes.SYSTEM.equals( childScope ) || JavaScopes.TEST.equals( childScope ) )
49          {
50              derivedScope = childScope;
51          }
52          else if ( parentScope == null || parentScope.length() <= 0 || JavaScopes.COMPILE.equals( parentScope ) )
53          {
54              derivedScope = childScope;
55          }
56          else if ( JavaScopes.TEST.equals( parentScope ) || JavaScopes.RUNTIME.equals( parentScope ) )
57          {
58              derivedScope = parentScope;
59          }
60          else if ( JavaScopes.SYSTEM.equals( parentScope ) || JavaScopes.PROVIDED.equals( parentScope ) )
61          {
62              derivedScope = JavaScopes.PROVIDED;
63          }
64          else
65          {
66              derivedScope = JavaScopes.RUNTIME;
67          }
68  
69          return derivedScope;
70      }
71  
72  }