package org.apache.maven.archiva.scheduled;

 /*

  * 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.maven.archiva.scheduled.tasks.DatabaseTask;

 import org.codehaus.plexus.scheduler.AbstractJob;

 import org.codehaus.plexus.taskqueue.Task;

 import org.codehaus.plexus.taskqueue.TaskQueue;

 import org.codehaus.plexus.taskqueue.TaskQueueException;

 import org.quartz.JobDataMap;

 import org.quartz.JobExecutionContext;

 import org.quartz.JobExecutionException;

 /**

  * This class is the database job that is executed by the scheduler.

  */

 public class DatabaseTaskJob

     extends AbstractJob

 {

     /**

      * Execute the discoverer and the indexer.

      *

      * @param context

      * @throws org.quartz.JobExecutionException

      *

      */

     public void execute( JobExecutionContext context )

         throws JobExecutionException

     {

         JobDataMap dataMap = context.getJobDetail().getJobDataMap();

         setJobDataMap( dataMap );

         TaskQueue taskQueue = (TaskQueue) dataMap.get( DefaultArchivaTaskScheduler.TASK_QUEUE );

         Task task = new DatabaseTask();

         try

         {

             // The database job only needs to run one at a time

             if ( taskQueue.getQueueSnapshot().isEmpty() )

             {

                 taskQueue.put( task );

             }

         }

         catch ( TaskQueueException e )

         {

             throw new JobExecutionException( e );

         }

     }

 }