package org.apache.maven.shared.release.transform.jdom2;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.maven.model.Plugin;
  import org.apache.maven.model.PluginManagement;
  import org.jdom2.Element;
  
  /**
   * JDOM2 implementation of poms PLUGINMANAGEMENT element
   *
   * @author Robert Scholte
   * @since 3.0
   */
  public class JDomPluginManagement extends PluginManagement
  {
      private final Element pluginManagement;
  
      public JDomPluginManagement( Element pluginManagement )
      {
          this.pluginManagement = pluginManagement;
      }
  
      @Override
      public void addPlugin( Plugin plugin )
      {
          throw new UnsupportedOperationException();
      }
  
      @Override
      public List<Plugin> getPlugins()
      {
          Element pluginsElm = pluginManagement.getChild( "plugins", pluginManagement.getNamespace() );
          if ( pluginsElm == null )
          {
              return Collections.emptyList();
          }
          else
          {
              List<Element> pluginElms = pluginsElm.getChildren( "plugin", pluginManagement.getNamespace() );
  
              List<Plugin> plugins = new ArrayList<>( pluginElms.size() );
  
              for ( Element pluginElm : pluginElms )
              {
                  plugins.add( new JDomPlugin( pluginElm ) );
              }
  
              return plugins;
          }
      }
  
      @Override
      public void removePlugin( Plugin plugin )
      {
          throw new UnsupportedOperationException();
      }
  
      @Override
      public void setPlugins( List<Plugin> plugins )
      {
          throw new UnsupportedOperationException();
      }
  
      @Override
      public void flushPluginMap()
      {
          throw new UnsupportedOperationException();
      }
  
      @Override
      public Map<String, Plugin> getPluginsAsMap()
      {
          throw new UnsupportedOperationException();
      }
  }