Example usage for com.liferay.portal.kernel.scheduler SchedulerEngine EXCEPTIONS_MAX_SIZE

Introduction

In this page you can find the example usage for com.liferay.portal.kernel.scheduler SchedulerEngine EXCEPTIONS_MAX_SIZE.

Prototype

String EXCEPTIONS_MAX_SIZE

To view the source code for com.liferay.portal.kernel.scheduler SchedulerEngine EXCEPTIONS_MAX_SIZE.

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Usage

From source file:de.uhh.l2g.plugins.util.PortletScheduler.java

License:Open Source License

/**
 * Schedule unscheduled Scheduler (requires valid SchedulerEntry Data &&
 * Message Date)/*from  w w  w.j a va  2 s.  co  m*/
 * 
 * There is no Issue in Liferay Tracker about this: Manually assembling.
 * Message, Trigger and Job from previously "working" Job, in order to use
 * 
 * SchedulerEngineHelperUtil.schedule(Trigger, StorageType, Description,
 * Destination, Message, exceptionsMaxSize);
 * 
 * Currently (6.2 GA 4 - GA 6) also fails to register the MessageListener
 * correctly for a single consumer. This might be a configuration detail
 * issue, which is not documented in liferays SchedulerEngineHelperUtil, at
 * first sight source investigation does not reveal conclusive hints.
 * 
 * Though the more complicated issue is that Quartz does persist the Job on
 * UNSCHEDULE but not the Trigger.
 * 
 * Therefore a SchedulerEntry must be available in Memory, to schedule an
 * unscheduled Job Liferay SchedulerEntry however does persit the Trigger...
 * but does not check for duplicates on deploy.
 * 
 * If we keep the SchedulerEntry in the List we have the Trigger but
 * unregister fails and duplicates the Scheduler If we remove the
 * SchedulerEntry unregister works correctly but we lose the Trigger
 * 
 * @throws ClassNotFoundException
 * @throws IllegalAccessException
 * @throws SchedulerException
 * @throws Exception
 * @throws InstantiationException
 *             *
 */
public void schedule() {
    int exceptionsMaxSize = 0;
    try {
        String messageText = GetterUtil.getString((this.getMessage().toString()));
        LOG.info("Starting :" + messageText);

        Map<String, Object> map = this.getMessage().getValues();

        String portletId = "";
        String listenerName = "";

        if (map.containsKey(SchedulerEngine.PORTLET_ID))
            portletId = map.get(SchedulerEngine.PORTLET_ID).toString();
        if (map.containsKey(SchedulerEngine.MESSAGE_LISTENER_CLASS_NAME))
            listenerName = map.get(SchedulerEngine.MESSAGE_LISTENER_CLASS_NAME).toString();
        if (map.containsKey(SchedulerEngine.EXCEPTIONS_MAX_SIZE))
            exceptionsMaxSize = Integer.valueOf(map.get(SchedulerEngine.EXCEPTIONS_MAX_SIZE).toString());

        LOG.info("Message :" + portletId + " " + listenerName + " " + this.destination);

        if (this.getTrigger() == null)
            this.setTrigger(this.generalTrigger);
        TriggerState state = SchedulerEngineHelperUtil.getJobState(this.getJobName(), this.getGroupName(),
                this.getStorageType());
        LOG.info("Trigger :" + GetterUtil.getString(this.getTrigger().toString()) + state);
        if (state != null && state.equals(TriggerState.UNSCHEDULED)) {
            this.getMessage().put(SchedulerEngine.MESSAGE_LISTENER_CLASS_NAME, this.schedulerClassName);
            this.getMessage().setDestinationName(this.DEST);
            this.getMessage().put(SchedulerEngine.RECEIVER_KEY,
                    this.getMessage().getValues().get(SchedulerEngine.RECEIVER_KEY).toString());
            LOG.info("Scheduling :" + this.schedulerClassName + " ");
            LOG.info("New Message " + this.getMessage().toString());
            Thread thread = Thread.currentThread();
            LOG.info("Thread :" + thread.getContextClassLoader() + thread.toString());
            if (this.schedulerEntry != null && this.getTrigger() != null)
                SchedulerEngineHelperUtil.schedule(schedulerEntry, this.getStorageType(), portletId,
                        exceptionsMaxSize);
            else
                assembleEntryFromSettings(this.schedulerClassName, TriggerState.NORMAL);
        } else {
            if (state == null)
                LOG.error("Could not find Job with Name: " + this.schedulerClassName);
            else
                LOG.info("Could not schedule Job with State: " + state);
        }

    } catch (SchedulerException e) {
        LOG.warn("", e);
    } catch (IllegalArgumentException e) {
        LOG.warn(e);
    }
}

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