package org.apache.maven.continuum.management.util;
   
   /*
    * 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.io.IOException;
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  import org.codehaus.plexus.spring.PlexusBeanDefinitionDocumentReader;
  import org.codehaus.plexus.spring.PlexusConfigurationPropertyEditor;
  import org.codehaus.plexus.spring.PlexusContainerAdapter;
  import org.codehaus.plexus.spring.PlexusLifecycleBeanPostProcessor;
  import org.codehaus.plexus.spring.editors.CollectionPropertyEditor;
  import org.codehaus.plexus.spring.editors.MapPropertyEditor;
  import org.codehaus.plexus.spring.editors.PropertiesPropertyEditor;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.BeansException;
  import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
  import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
  import org.springframework.context.ApplicationContext;
  
  public class PlexusApplicationContextDelegate
  {
      /** Logger used by this class. */
      protected Logger logger = LoggerFactory.getLogger( getClass() );
  
      private PlexusLifecycleBeanPostProcessor lifecycleBeanPostProcessor;
  
      /**
       * @see org.springframework.context.support.AbstractXmlApplicationContext#loadBeanDefinitions(org.springframework.beans.factory.xml.XmlBeanDefinitionReader)
       */
      protected void loadBeanDefinitions( XmlBeanDefinitionReader reader )
          throws BeansException, IOException
      {
          logger.info( "Registering Plexus to Spring XML translation" );
          reader.setDocumentReaderClass( PlexusBeanDefinitionDocumentReader.class );
      }
  
      /**
       * @see org.springframework.context.support.AbstractApplicationContext#postProcessBeanFactory(org.springframework.beans.factory.config.ConfigurableListableBeanFactory)
       */
      protected void postProcessBeanFactory( ConfigurableListableBeanFactory beanFactory, ApplicationContext context )
      {
          // Register a PlexusContainerAdapter bean to allow context lookups using plexus API
          PlexusContainerAdapter plexus = new PlexusContainerAdapter();
          plexus.setApplicationContext( context );
          beanFactory.registerSingleton( "plexusContainer", plexus );
  
          // Register a beanPostProcessor to handle plexus interface-based lifecycle management
          lifecycleBeanPostProcessor = new PlexusLifecycleBeanPostProcessor();
          lifecycleBeanPostProcessor.setBeanFactory( context );
          beanFactory.addBeanPostProcessor( lifecycleBeanPostProcessor );
  
          // Register a PropertyEditor to support plexus XML <configuration> set as CDATA in
          // a spring context XML file.
          beanFactory.addPropertyEditorRegistrar( new PlexusConfigurationPropertyEditor() );
          beanFactory.addPropertyEditorRegistrar( new PropertiesPropertyEditor() );
          beanFactory.addPropertyEditorRegistrar( new CollectionPropertyEditor( List.class, ArrayList.class ) );
          beanFactory.addPropertyEditorRegistrar( new CollectionPropertyEditor( Set.class, HashSet.class ) );
          beanFactory.addPropertyEditorRegistrar( new MapPropertyEditor( Map.class, HashMap.class ) );
      }
  
      /**
       * @see org.springframework.context.support.AbstractApplicationContext#doClose()
       */
      protected void doClose()
      {
          try
          {
              lifecycleBeanPostProcessor.destroy();
          }
          catch ( Throwable ex )
          {
              logger.error( "Exception thrown from PlexusLifecycleBeanPostProcessor handling ContextClosedEvent", ex );
          }
      }
  }