package org.apache.commons.jelly.tags.quartz;
   
   /*
    * Copyright 2002,2004 The Apache Software Foundation.
    *
    * 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.
   */
  
  import java.text.ParseException;
  
  import org.apache.commons.jelly.JellyTagException;
  import org.apache.commons.jelly.XMLOutput;
  import org.apache.commons.jelly.MissingAttributeException;
  
  import org.quartz.CronTrigger;
  import org.quartz.Scheduler;
  import org.quartz.SchedulerException;
  
  import java.util.Date;
  
  /*** Define a trigger using a cron time spec.
   *
   *  @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a>
   */
  public class CronTriggerTag extends QuartzTagSupport
  {
      // ------------------------------------------------------------
      //     Instance members
      // ------------------------------------------------------------
  
      /*** Cron time spec. */
      private String spec;
  
      /*** Trigger name. */
      private String name;
  
      /*** Trigger group. */
      private String group;
  
      /*** Job name. */
      private String jobName;
  
      /*** Job group. */
      private String jobGroup;
  
      // ------------------------------------------------------------
      //     COnstructors
      // ------------------------------------------------------------
  
      /*** Construct.
       */
      public CronTriggerTag()
      {
          // intentionally left blank.
      }
  
      // ------------------------------------------------------------
      // ------------------------------------------------------------
  
      /*** Set the name.
       *
       *  @param name.
       */
      public void setName(String name)
      {
          this.name = name;
      }
  
      /*** Retrieve the name.
       *
       *  @return The name.
       */
      public String getName()
      {
          return this.name;
      }
  
      /*** Set the group
       *
       *  @param group The group
       */
      public void setGroup(String group)
      {
          this.group = group;
      }
  
      /*** Retrieve the group.
       *
       *  @return The group.
      */
     public String getGroup()
     {
         return this.group;
     }
 
     /*** Set the cron time spec.
      *
      *  @param spec The cron time spec.
      */
     public void setSpec(String spec)
     {
         this.spec = spec;
     }
 
     /*** Retrieve the cron time spec.
      *
      *  @param spec The cron time spec.
      */
     public String getSpec()
     {
         return this.spec;
     }
 
     /*** Set the job name.
      *
      *  @param jobName The job name.
      */
     public void setJobName(String jobName)
     {
         this.jobName = jobName;
     }
 
     /*** Retrieve the job name.
      *
      *  @return The job name.
      */
     public String getJobName()
     {
         return this.jobName;
     }
 
     /*** Set the job group.
      *
      *  @param jobGroup The job group.
      */
     public void setJobGroup(String jobGroup)
     {
         this.jobGroup = jobGroup;
     }
 
     /*** Retrieve the job group.
      *
      *  @return The job group.
      */
     public String getJobGroup()
     {
         return this.jobGroup;
     }
 
     // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
     //     org.apache.commons.jelly.Tag
     // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
     /*** Perform this tag.
      *
      *  @param output Output sink.
      *
      *  @throws Exception If an error occurs.
      */
     public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException
     {
         if ( getSpec() == null )
         {
             throw new MissingAttributeException( "spec" );
         }
 
         if ( getName() == null )
         {
             throw new MissingAttributeException( "name" );
         }
 
         if ( getGroup() == null )
         {
             throw new MissingAttributeException( "group" );
         }
 
         if ( getJobName() == null )
         {
             throw new MissingAttributeException( "jobName" );
         }
 
         if ( getJobGroup() == null )
         {
             throw new MissingAttributeException( "jobGroup" );
         }
 
         CronTrigger trigger = new CronTrigger( getName(),
                                                getGroup() );
         try {
             trigger.setCronExpression( getSpec() );
         }
         catch (ParseException e) {
             throw new JellyTagException(e);
         }
         trigger.setJobName( getJobName() );
         trigger.setJobGroup( getJobGroup() );
         trigger.setStartTime( new Date() );
 
         try {
             Scheduler sched = getScheduler();
             sched.scheduleJob( trigger );
         }
         catch (SchedulerException e) {
             throw new JellyTagException(e);
         }
     }
 }