Package org.servicemix.demo

Source Code of org.servicemix.demo.QuartzComponent

/**
*
* Copyright 2005 LogicBlaze, Inc. http://www.logicblaze.com
*
* 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.
*
**/
package org.servicemix.demo;

import java.util.Date;
import java.util.Iterator;
import java.util.Map;

import javax.jbi.JBIException;
import javax.jbi.messaging.InOnly;
import javax.jbi.messaging.MessagingException;
import javax.jbi.messaging.NormalizedMessage;
import javax.xml.namespace.QName;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.quartz.JobDetail;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.Trigger;
import org.quartz.impl.StdSchedulerFactory;
import org.servicemix.client.ServiceContext;
import org.servicemix.client.ServiceLifeCycleImplementation;

/**
* A <a href="http://www.opensymphony.com/quartz/">Quartz</a> component for
* triggering components when timer events fire.
*
* @version $Revision: 452 $
*/
public class QuartzComponent implements ServiceLifeCycleImplementation {
  private static final transient Log log = LogFactory
      .getLog(QuartzComponent.class);

  public static final String COMPONENT_KEY = "org.servicemix.component";

  private SchedulerFactory factory;

  private Scheduler scheduler;

  private Map triggers;

  private QuartzMarshaler marshaler = new DefaultQuartzMarshaler();

  private ServiceContext serviceContext;

  public void start() throws JBIException {
    try {
      scheduler.start();
    } catch (SchedulerException e) {
      throw new JBIException(e);
    }
  }

  public void stop() throws JBIException {
    try {
      scheduler.shutdown();
    } catch (SchedulerException e) {
      throw new JBIException(e);
    }
  }

  public void addTrigger(Trigger trigger, JobDetail detail)
      throws JBIException {
    try {
      // lets default the trigger name to the job name
      if (trigger.getName() == null) {
        trigger.setName(detail.getName());
      }
      // lets default the trigger group to the job group
      if (trigger.getGroup() == null) {
        trigger.setGroup(detail.getGroup());
      }
      // default start time to now if not specified
      if (trigger.getStartTime() == null) {
        trigger.setStartTime(new Date());
      }
      detail.getJobDataMap().put(COMPONENT_KEY, this);
      Class jobClass = detail.getJobClass();
      if (jobClass == null) {
        detail.setJobClass(ServiceMixJob.class);
      }
      scheduler.scheduleJob(detail, trigger);
    } catch (SchedulerException e) {
      throw new JBIException("Failed to add trigger: " + trigger
          + " with detail: " + detail + ". Reason: " + e, e);
    }
  }

  /**
   * This method is invoked when a Quartz job is fired.
   *
   * @param context
   *            the Quartz Job context
   */
  public void onJobExecute(JobExecutionContext context)
      throws JobExecutionException {
    if (log.isDebugEnabled()) {
      log.debug("Firing Quartz Job with context: " + context);
    }
    try {
      QName targetInterface = new QName("http://tempuri.org/quartz",
          "triggeredNotification");
      InOnly inOnly = serviceContext.createInOnly(targetInterface);
      NormalizedMessage message = inOnly.createMessage();
      getMarshaler().populateNormalizedMessage(message, context);
      inOnly.setInMessage(message);
      serviceContext.done(inOnly);
    } catch (MessagingException e) {
      throw new JobExecutionException(e);
    }
  }

  // Properties
  // -------------------------------------------------------------------------
  public SchedulerFactory getFactory() {
    return factory;
  }

  public void setFactory(SchedulerFactory factory) {
    this.factory = factory;
  }

  public Scheduler getScheduler() {
    return scheduler;
  }

  public void setScheduler(Scheduler scheduler) {
    this.scheduler = scheduler;
  }

  public Map getTriggers() {
    return triggers;
  }

  public void setTriggers(Map triggers) {
    this.triggers = triggers;
  }

  public QuartzMarshaler getMarshaler() {
    return marshaler;
  }

  public void setMarshaler(QuartzMarshaler marshaler) {
    this.marshaler = marshaler;
  }

  // Implementation methods
  // -------------------------------------------------------------------------
  public void init(ServiceContext context) throws JBIException {
    this.serviceContext = context;
    try {
      if (scheduler == null) {
        if (factory == null) {
          factory = new StdSchedulerFactory();
        }
        scheduler = factory.getScheduler();
      }
    } catch (SchedulerException e) {
      throw new JBIException(e);
    }

    if (triggers != null) {
      for (Iterator iter = triggers.entrySet().iterator(); iter.hasNext();) {
        Map.Entry entry = (Map.Entry) iter.next();
        Object key = entry.getKey();
        Object value = entry.getValue();
        if (key == null) {
          throw new IllegalArgumentException(
              "Key of the map cannot be null");
        }
        if (value == null) {
          throw new IllegalArgumentException(
              "Key of the map cannot be null");
        }
        if (!(key instanceof Trigger)) {
          throw new IllegalArgumentException(
              "Key of the map must be a Trigger but was: "
                  + key.getClass().getName());
        }
        if (!(value instanceof JobDetail)) {
          throw new IllegalArgumentException(
              "Key of the map must be a JobDetail but was: "
                  + value.getClass().getName());
        }
        addTrigger((Trigger) key, (JobDetail) value);
      }
    }
  }

}
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