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1   package org.apache.maven.model.plugin;
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.List;
23  
24  import javax.inject.Named;
25  import javax.inject.Singleton;
26  
27  import org.apache.maven.model.Build;
28  import org.apache.maven.model.Model;
29  import org.apache.maven.model.Plugin;
30  import org.apache.maven.model.PluginExecution;
31  import org.apache.maven.model.PluginManagement;
32  import org.apache.maven.model.building.ModelBuildingRequest;
33  import org.apache.maven.model.building.ModelProblemCollector;
34  import org.codehaus.plexus.util.xml.Xpp3Dom;
35  
36  /**
37   * Handles expansion of general build plugin configuration into individual executions.
38   *
39   * @author Benjamin Bentmann
40   */
41  @Named
42  @Singleton
43  public class DefaultPluginConfigurationExpander
44      implements PluginConfigurationExpander
45  {
46  
47      @Override
48      public void expandPluginConfiguration( Model model, ModelBuildingRequest request, ModelProblemCollector problems )
49      {
50          Build build = model.getBuild();
51  
52          if ( build != null )
53          {
54              expand( build.getPlugins() );
55  
56              PluginManagement pluginManagement = build.getPluginManagement();
57  
58              if ( pluginManagement != null )
59              {
60                  expand( pluginManagement.getPlugins() );
61              }
62          }
63      }
64  
65      private void expand( List<Plugin> plugins )
66      {
67          for ( Plugin plugin : plugins )
68          {
69              Xpp3Dom pluginConfiguration = (Xpp3Dom) plugin.getConfiguration();
70  
71              if ( pluginConfiguration != null )
72              {
73                  for ( PluginExecution execution : plugin.getExecutions() )
74                  {
75                      Xpp3Dom executionConfiguration = (Xpp3Dom) execution.getConfiguration();
76  
77                      executionConfiguration =
78                          Xpp3Dom.mergeXpp3Dom( executionConfiguration, new Xpp3Dom( pluginConfiguration ) );
79  
80                      execution.setConfiguration( executionConfiguration );
81                  }
82              }
83          }
84      }
85  
86  }