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package org.apache.camel.component.quartz; |
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import java.util.Date; |
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import java.util.Map; |
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import java.util.Set; |
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import org.apache.camel.Processor; |
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import org.apache.camel.Producer; |
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import org.apache.camel.impl.DefaultEndpoint; |
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import org.apache.camel.processor.loadbalancer.LoadBalancer; |
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import org.apache.camel.processor.loadbalancer.RoundRobinLoadBalancer; |
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import org.apache.camel.util.ObjectHelper; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.quartz.JobDetail; |
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import org.quartz.JobExecutionContext; |
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import org.quartz.JobExecutionException; |
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import org.quartz.Scheduler; |
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import org.quartz.SchedulerException; |
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import org.quartz.SimpleTrigger; |
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import org.quartz.Trigger; |
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public class QuartzEndpoint extends DefaultEndpoint<QuartzExchange> { |
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public static final String ENDPOINT_KEY = "org.apache.camel.quartz"; |
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private static final transient Log LOG = LogFactory.getLog(QuartzEndpoint.class); |
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private Scheduler scheduler; |
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private LoadBalancer loadBalancer; |
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private Trigger trigger; |
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private JobDetail jobDetail; |
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private boolean started; |
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public QuartzEndpoint(String endpointUri, QuartzComponent component, Scheduler scheduler) { |
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super(endpointUri, component); |
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this.scheduler = scheduler; |
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} |
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public void addTriggers(Map<Trigger, JobDetail> triggerMap) throws SchedulerException { |
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if (triggerMap != null) { |
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Set<Map.Entry<Trigger, JobDetail>> entries = triggerMap.entrySet(); |
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for (Map.Entry<Trigger, JobDetail> entry : entries) { |
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Trigger key = entry.getKey(); |
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JobDetail value = entry.getValue(); |
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ObjectHelper.notNull(key, "key"); |
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ObjectHelper.notNull(value, "value"); |
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addTrigger(key, value); |
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} |
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} |
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} |
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public void addTrigger(Trigger trigger, JobDetail detail) throws SchedulerException { |
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if (trigger.getName() == null) { |
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trigger.setName(detail.getName()); |
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} |
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if (trigger.getGroup() == null) { |
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trigger.setGroup(detail.getGroup()); |
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} |
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if (trigger.getStartTime() == null) { |
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trigger.setStartTime(new Date()); |
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} |
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detail.getJobDataMap().put(ENDPOINT_KEY, this); |
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Class jobClass = detail.getJobClass(); |
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if (jobClass == null) { |
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detail.setJobClass(CamelJob.class); |
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} |
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if (detail.getName() == null) { |
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detail.setName(getEndpointUri()); |
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} |
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getScheduler().scheduleJob(detail, trigger); |
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} |
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public void removeTrigger(Trigger trigger, JobDetail jobDetail) throws SchedulerException { |
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getScheduler().unscheduleJob(trigger.getName(), trigger.getGroup()); |
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} |
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public void onJobExecute(JobExecutionContext jobExecutionContext) throws JobExecutionException { |
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if (LOG.isDebugEnabled()) { |
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LOG.debug("Firing Quartz Job with context: " + jobExecutionContext); |
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} |
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QuartzExchange exchange = createExchange(jobExecutionContext); |
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try { |
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getLoadBalancer().process(exchange); |
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} catch (JobExecutionException e) { |
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throw e; |
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} catch (Exception e) { |
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throw new JobExecutionException(e); |
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} |
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} |
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public QuartzExchange createExchange() { |
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return new QuartzExchange(getContext(), null); |
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} |
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public QuartzExchange createExchange(JobExecutionContext jobExecutionContext) { |
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return new QuartzExchange(getContext(), jobExecutionContext); |
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} |
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public Producer<QuartzExchange> createProducer() throws Exception { |
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throw new UnsupportedOperationException("You cannot send messages to this endpoint"); |
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} |
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public QuartzConsumer createConsumer(Processor processor) throws Exception { |
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return new QuartzConsumer(this, processor); |
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} |
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@Override |
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public QuartzComponent getComponent() { |
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return (QuartzComponent)super.getComponent(); |
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} |
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public boolean isSingleton() { |
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return true; |
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} |
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public Scheduler getScheduler() { |
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return scheduler; |
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} |
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public LoadBalancer getLoadBalancer() { |
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if (loadBalancer == null) { |
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loadBalancer = createLoadBalancer(); |
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} |
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return loadBalancer; |
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} |
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public void setLoadBalancer(LoadBalancer loadBalancer) { |
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this.loadBalancer = loadBalancer; |
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} |
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public JobDetail getJobDetail() { |
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if (jobDetail == null) { |
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jobDetail = createJobDetail(); |
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} |
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return jobDetail; |
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} |
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public void setJobDetail(JobDetail jobDetail) { |
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this.jobDetail = jobDetail; |
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} |
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public Trigger getTrigger() { |
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if (trigger == null) { |
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trigger = createTrigger(); |
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} |
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return trigger; |
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} |
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public void setTrigger(Trigger trigger) { |
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this.trigger = trigger; |
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} |
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public synchronized void consumerStarted(QuartzConsumer consumer) throws SchedulerException { |
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getLoadBalancer().addProcessor(consumer.getProcessor()); |
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if (!started) { |
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addTrigger(getTrigger(), getJobDetail()); |
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started = true; |
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} |
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} |
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public synchronized void consumerStopped(QuartzConsumer consumer) throws SchedulerException { |
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getLoadBalancer().removeProcessor(consumer.getProcessor()); |
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if (getLoadBalancer().getProcessors().isEmpty() && started) { |
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removeTrigger(getTrigger(), getJobDetail()); |
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started = false; |
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} |
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} |
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protected LoadBalancer createLoadBalancer() { |
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return new RoundRobinLoadBalancer(); |
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} |
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protected JobDetail createJobDetail() { |
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return new JobDetail(); |
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} |
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protected Trigger createTrigger() { |
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return new SimpleTrigger(); |
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} |
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} |