/*
    * 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.task;
  
  import java.util.List;
  
  import org.kie.api.task.model.Status;
  import org.kie.api.task.model.TaskSummary;
  import org.kie.internal.query.ParametrizedQuery;
  import org.kie.internal.task.api.InternalTaskService;
  import org.kie.internal.task.query.TaskQueryBuilder;
  
  
  /**
   * Overridden to have a query for ready tasks.
   *
   * @author The eFaps Team
   * @version $Id$
   */
  public class TaskAdminstration
  {
  
      /**
       * TaskService used to execute the commands.
       */
      private final InternalTaskService taskService;
  
      /**
       * @param _taskService  TaskService used to execute the commands
       */
      public TaskAdminstration(final InternalTaskService _taskService)
      {
          this.taskService = _taskService;
      }
  
      /**
       * @return the task in status ready
       */
      public List<TaskSummary> getReadyTasks()
      {
          final TaskQueryBuilder queryBldr = this.taskService.taskQuery("Administrator");
          queryBldr.status(Status.Ready);
          final ParametrizedQuery<TaskSummary> paraQuery = queryBldr.buildQuery();
          return paraQuery.getResultList() ;
      }
  
      /**
       * @return the task in status Reserved
       */
      public List<TaskSummary> getReservedTasks()
      {
          final TaskQueryBuilder queryBldr = this.taskService.taskQuery("Administrator");
          queryBldr.status(Status.Reserved);
          final ParametrizedQuery<TaskSummary> paraQuery = queryBldr.buildQuery();
          return paraQuery.getResultList() ;
      }
  
      /**
       * @return the task in status Error
       */
      public List<TaskSummary> getErrorTasks()
      {
          final TaskQueryBuilder queryBldr = this.taskService.taskQuery("Administrator");
          queryBldr.status(Status.Error);
          final ParametrizedQuery<TaskSummary> paraQuery = queryBldr.buildQuery();
          return paraQuery.getResultList() ;
      }
  
      /**
       * @return the task in status Error
       */
      public List<TaskSummary> getExitedTasks()
      {
          final TaskQueryBuilder queryBldr = this.taskService.taskQuery("Administrator");
          queryBldr.status(Status.Exited);
          final ParametrizedQuery<TaskSummary> paraQuery = queryBldr.buildQuery();
          return paraQuery.getResultList() ;
      }
  
      /**
      * @return list of active Tasks
      */
     public List<TaskSummary> getActiveTasks()
     {
         final TaskQueryBuilder queryBldr = this.taskService.taskQuery("Administrator");
         queryBldr.status(Status.InProgress);
         final ParametrizedQuery<TaskSummary> paraQuery = queryBldr.buildQuery();
         return paraQuery.getResultList() ;
     }
 
     /**
      * @return list of completed Tasks
      */
     public List<TaskSummary> getCompletedTasks()
     {
         final TaskQueryBuilder queryBldr = this.taskService.taskQuery("Administrator");
         queryBldr.status(Status.Completed);
         final ParametrizedQuery<TaskSummary> paraQuery = queryBldr.buildQuery();
         return paraQuery.getResultList() ;
     }
 }