package org.apache.continuum.purge.task;
   
   /*
    * 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 org.apache.continuum.model.repository.AbstractPurgeConfiguration;
  import org.apache.continuum.model.repository.DirectoryPurgeConfiguration;
  import org.apache.continuum.model.repository.LocalRepository;
  import org.apache.continuum.model.repository.RepositoryPurgeConfiguration;
  import org.apache.continuum.purge.PurgeConfigurationService;
  import org.apache.continuum.purge.controller.PurgeController;
  import org.apache.continuum.purge.executor.ContinuumPurgeExecutorException;
  import org.apache.continuum.purge.repository.scanner.RepositoryScanner;
  import org.codehaus.plexus.PlexusConstants;
  import org.codehaus.plexus.PlexusContainer;
  import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
  import org.codehaus.plexus.context.Context;
  import org.codehaus.plexus.context.ContextException;
  import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable;
  import org.codehaus.plexus.taskqueue.Task;
  import org.codehaus.plexus.taskqueue.execution.TaskExecutionException;
  import org.codehaus.plexus.taskqueue.execution.TaskExecutor;
  
  /**
   * @author Maria Catherine Tan
   */
  public class PurgeTaskExecutor
      implements TaskExecutor, Contextualizable
  {
      /**
       * @plexus.requirement
       */
      private PurgeConfigurationService purgeConfigurationService;
  
      /**
       * @plexus.requirement
       */
      private RepositoryScanner scanner;
  
      private PlexusContainer container;
  
      public void executeTask( Task task )
          throws TaskExecutionException
      {
          PurgeTask purgeTask = (PurgeTask) task;
  
          AbstractPurgeConfiguration purgeConfig =
              purgeConfigurationService.getPurgeConfiguration( purgeTask.getPurgeConfigurationId() );
  
          try
          {
              if ( purgeConfig != null && purgeConfig instanceof RepositoryPurgeConfiguration )
              {
                  RepositoryPurgeConfiguration repoPurge = (RepositoryPurgeConfiguration) purgeConfig;
  
                  LocalRepository repository = repoPurge.getRepository();
  
                  if ( repository == null )
                  {
                      throw new TaskExecutionException(
                          "Error while executing purge repository task: no repository set" );
                  }
  
                  PurgeController purgeController =
                      (PurgeController) container.lookup( PurgeController.ROLE, "purge-repository" );
  
                  purgeController.initializeExecutors( repoPurge );
  
                  if ( repoPurge.isDeleteAll() )
                  {
                      purgeController.doPurge( repository.getLocation() );
                  }
                  else
                  {
                      scanner.scan( repository, purgeController );
                  }
              }
              else if ( purgeConfig != null && purgeConfig instanceof DirectoryPurgeConfiguration )
              {
                  DirectoryPurgeConfiguration dirPurge = (DirectoryPurgeConfiguration) purgeConfig;
  
                  PurgeController purgeController =
                      (PurgeController) container.lookup( PurgeController.ROLE, "purge-directory" );
 
                 purgeController.initializeExecutors( dirPurge );
 
                 purgeController.doPurge( dirPurge.getLocation() );
             }
 
         }
         catch ( ComponentLookupException e )
         {
             throw new TaskExecutionException( "Error while executing purge task", e );
         }
         catch ( ContinuumPurgeExecutorException e )
         {
             throw new TaskExecutionException( "Error while executing purge task", e );
         }
     }
 
     public void contextualize( Context context )
         throws ContextException
     {
         container = (PlexusContainer) context.get( PlexusConstants.PLEXUS_KEY );
     }
 }