Example usage for com.liferay.portal.kernel.scheduler SchedulerEntry getTrigger

Introduction

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

Prototype

public Trigger getTrigger();

Source Link

Usage

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

License:Open Source License

/**
 * Reads Scheduler entries from Portlet Preferences
 * /*from  w  ww.  j  a v  a  2  s  . com*/
 * WARN: This will disable Multiple Quartz Jobs (Triggers) per Listener Feature
 * 
 * @param schedulerClassName
 * @param portletId
 */
public void initScheduler(String schedulerClassName, ServiceContext serviceContext) {
    Portlet portlet = PortletLocalServiceUtil.getPortletById(serviceContext.getPortletId());
    List<SchedulerEntry> jobs = new LinkedList<SchedulerEntry>();
    List<SchedulerEntry> duplicates = new LinkedList<SchedulerEntry>();

    LOG.info("Initializing schedulers for " + schedulerClassName + " " + portletId);

    this.schedulerClassName = schedulerClassName;
    this.portletId = serviceContext.getPortletId();

    // Load Quartz Job (Unique for ClassName!)
    assembleMessageFromResponses();

    // Fetch List of Schedulers started on portlet initialization (maybe we
    // do have a Trigger,...)
    jobs = portlet.getSchedulerEntries();
    for (SchedulerEntry job : jobs) {
        // Grab first scheduler associated with given Class
        if (job.getEventListenerClass().equalsIgnoreCase(this.schedulerClassName)) {
            if (this.schedulerEntry == null) {
                LOG.info(job.toString());
                this.schedulerEntry = job;
                // Get Trigger
                try {
                    this.generalTrigger = job.getTrigger();
                    if (this.generalTrigger != null) {
                        // Try persisting our Trigger in DB
                        String currentCron = GetterUtil
                                .getString(this.generalTrigger.getTriggerContent().toString());
                        this.triggerState = SchedulerEngineHelperUtil.getJobState(job.getEventListenerClass(),
                                job.getEventListenerClass(), this.getStorageType());
                        String persistCron = ScheduledThreadLocalServiceUtil
                                .getCronBySchedulerName(job.getEventListenerClass());
                        if (persistCron == null || persistCron.isEmpty())
                            ScheduledThreadLocalServiceUtil.addScheduledThread(schedulerClassName, currentCron,
                                    serviceContext);
                        // Overwrite if we encounter new value (assume
                        // PortletScheduler Names are unique)
                        if (!persistCron.equals(currentCron) && !currentCron.isEmpty())
                            ScheduledThreadLocalServiceUtil.updateScheduledThread(schedulerClassName,
                                    currentCron, serviceContext);
                    }
                } catch (SchedulerException t) {
                    LOG.warn(t);
                } catch (SystemException e) {
                    LOG.warn("Failed Loading Persitence - Recovery of Triggers will fail", e);
                } catch (PortalException e) {
                    LOG.warn("", e);
                }
            } else { // Collect duplicate SchedulerEntries
                LOG.warn("Multiple runnging Jobs found for same Scheduled Task! Removing ... " + job);
                duplicates.add(job);
            }
        }
    }
    // remove duplicates
    jobs.removeAll(duplicates);

    // Check if we got what we've been looking for
    if (schedulerEntry == null) {
        LOG.warn("No SchedulerEntry found for this Job. Generating new Entry...");
        assembleEntryFromSettings(portletId, this.triggerState);
    }

}

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