001 package org.apache.maven.model.management;
002
003 /*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements. See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership. The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License. You may obtain a copy of the License at
011 *
012 * http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied. See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022 import java.util.ArrayList;
023 import java.util.Collections;
024 import java.util.LinkedHashMap;
025 import java.util.List;
026 import java.util.Map;
027
028 import org.apache.maven.model.Build;
029 import org.apache.maven.model.Model;
030 import org.apache.maven.model.Plugin;
031 import org.apache.maven.model.PluginContainer;
032 import org.apache.maven.model.PluginExecution;
033 import org.apache.maven.model.PluginManagement;
034 import org.apache.maven.model.building.ModelBuildingRequest;
035 import org.apache.maven.model.building.ModelProblemCollector;
036 import org.apache.maven.model.merge.MavenModelMerger;
037 import org.codehaus.plexus.component.annotations.Component;
038
039 /**
040 * Handles injection of plugin management into the model.
041 *
042 * @author Benjamin Bentmann
043 */
044 @Component( role = PluginManagementInjector.class )
045 public class DefaultPluginManagementInjector
046 implements PluginManagementInjector
047 {
048
049 private ManagementModelMerger merger = new ManagementModelMerger();
050
051 public void injectManagement( Model model, ModelBuildingRequest request, ModelProblemCollector problems )
052 {
053 merger.mergeManagedBuildPlugins( model );
054 }
055
056 protected static class ManagementModelMerger
057 extends MavenModelMerger
058 {
059
060 public void mergeManagedBuildPlugins( Model model )
061 {
062 Build build = model.getBuild();
063 if ( build != null )
064 {
065 PluginManagement pluginManagement = build.getPluginManagement();
066 if ( pluginManagement != null )
067 {
068 mergePluginContainer_Plugins( build, pluginManagement );
069 }
070 }
071 }
072
073 private void mergePluginContainer_Plugins( PluginContainer target, PluginContainer source )
074 {
075 List<Plugin> src = source.getPlugins();
076 if ( !src.isEmpty() )
077 {
078 List<Plugin> tgt = target.getPlugins();
079
080 Map<Object, Plugin> managedPlugins = new LinkedHashMap<Object, Plugin>( src.size() * 2 );
081
082 Map<Object, Object> context = Collections.emptyMap();
083
084 for ( Plugin element : src )
085 {
086 Object key = getPluginKey( element );
087 managedPlugins.put( key, element );
088 }
089
090 for ( Plugin element : tgt )
091 {
092 Object key = getPluginKey( element );
093 Plugin managedPlugin = managedPlugins.get( key );
094 if ( managedPlugin != null )
095 {
096 mergePlugin( element, managedPlugin, false, context );
097 }
098 }
099 }
100 }
101
102 @Override
103 protected void mergePlugin_Executions( Plugin target, Plugin source, boolean sourceDominant,
104 Map<Object, Object> context )
105 {
106 List<PluginExecution> src = source.getExecutions();
107 if ( !src.isEmpty() )
108 {
109 List<PluginExecution> tgt = target.getExecutions();
110
111 Map<Object, PluginExecution> merged =
112 new LinkedHashMap<Object, PluginExecution>( ( src.size() + tgt.size() ) * 2 );
113
114 for ( PluginExecution element : src )
115 {
116 Object key = getPluginExecutionKey( element );
117 merged.put( key, element.clone() );
118 }
119
120 for ( PluginExecution element : tgt )
121 {
122 Object key = getPluginExecutionKey( element );
123 PluginExecution existing = merged.get( key );
124 if ( existing != null )
125 {
126 mergePluginExecution( element, existing, sourceDominant, context );
127 }
128 merged.put( key, element );
129 }
130
131 target.setExecutions( new ArrayList<PluginExecution>( merged.values() ) );
132 }
133 }
134 }
135
136 }