/*
    * Copyright 2003 - 2013 The eFaps Team
    *
    * Licensed 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.
   *
   * Revision:        $Rev$
   * Last Changed:    $Date$
   * Last Changed By: $Author$
   */
  
  package org.efaps.bpm.runtime;
  
  import javax.persistence.EntityManagerFactory;
  
  import org.jbpm.runtime.manager.impl.SimpleRuntimeEnvironment;
  import org.jbpm.services.task.HumanTaskServiceFactory;
  import org.jbpm.services.task.audit.JPATaskLifeCycleEventListener;
  import org.jbpm.services.task.lifecycle.listeners.BAMTaskEventListener;
  import org.kie.api.runtime.manager.RuntimeEnvironment;
  import org.kie.api.task.TaskService;
  import org.kie.internal.runtime.manager.TaskServiceFactory;
  
  /**
   * TODO comment!
   *
   * @author The eFaps Team
   * @version $Id$
   */
  public class LocalTaskServiceFactoryImpl
      implements TaskServiceFactory
  {
  
      /**
       * RuntimeEnvironment.
       */
      private final RuntimeEnvironment runtimeEnvironment;
  
      /**
       * @param _runtimeEnvironment RuntimeEnvironment to be used
       */
      public LocalTaskServiceFactoryImpl(final RuntimeEnvironment _runtimeEnvironment)
      {
          this.runtimeEnvironment = _runtimeEnvironment;
      }
  
      @Override
      public TaskService newTaskService()
      {
          final EntityManagerFactory emf = ((SimpleRuntimeEnvironment) this.runtimeEnvironment).getEmf();
          TaskService ret = null;
          if (emf != null) {
              ret = HumanTaskServiceFactory.newTaskServiceConfigurator()
                          .environment(this.runtimeEnvironment.getEnvironment())
                          .entityManagerFactory(emf)
                          .listener(new JPATaskLifeCycleEventListener(true))
                          .listener(new BAMTaskEventListener(true))
                          .userGroupCallback(this.runtimeEnvironment.getUserGroupCallback())
                          .getTaskService();
          }
          return ret;
      }
  
      @Override
      public void close()
      {
          // no action required
      }
  }