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package org.mule.model.seda; |
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import org.mule.DefaultMuleEvent; |
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import org.mule.DefaultMuleMessage; |
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import org.mule.FailedToQueueEventException; |
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import org.mule.OptimizedRequestContext; |
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import org.mule.RequestContext; |
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import org.mule.api.ExceptionPayload; |
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import org.mule.api.MessagingException; |
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import org.mule.api.MuleEvent; |
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import org.mule.api.MuleException; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.MuleRuntimeException; |
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import org.mule.api.config.ThreadingProfile; |
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import org.mule.api.context.WorkManager; |
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import org.mule.api.endpoint.InboundEndpoint; |
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import org.mule.api.lifecycle.InitialisationException; |
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import org.mule.api.lifecycle.LifecycleException; |
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import org.mule.api.service.ServiceException; |
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import org.mule.api.transport.ReplyToHandler; |
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import org.mule.config.QueueProfile; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.config.i18n.MessageFactory; |
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import org.mule.management.stats.ServiceStatistics; |
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import org.mule.message.DefaultExceptionPayload; |
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import org.mule.service.AbstractService; |
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import org.mule.transport.NullPayload; |
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import org.mule.util.queue.Queue; |
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import org.mule.util.queue.QueueSession; |
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import java.util.NoSuchElementException; |
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import javax.resource.spi.work.Work; |
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import javax.resource.spi.work.WorkEvent; |
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import javax.resource.spi.work.WorkException; |
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import javax.resource.spi.work.WorkListener; |
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|
53 | 0 | public class SedaService extends AbstractService implements Work, WorkListener |
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{ |
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private static final long serialVersionUID = 7711976708670893015L; |
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private static final String QUEUE_NAME_SUFFIX = ".component"; |
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protected WorkManager workManager; |
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|
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protected Integer queueTimeout; |
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protected ThreadingProfile threadingProfile; |
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protected QueueProfile queueProfile; |
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protected Queue queue; |
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public SedaService() |
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{ |
86 | 394 | super(); |
87 | 394 | } |
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protected synchronized void doInitialise() throws InitialisationException |
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{ |
100 | 390 | if (threadingProfile == null) |
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{ |
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|
103 | 390 | threadingProfile = muleContext.getDefaultComponentThreadingProfile(); |
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} |
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|
106 | 390 | workManager = threadingProfile.createWorkManager(getName()); |
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|
108 | 390 | if (queueProfile == null) |
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{ |
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|
111 | 386 | queueProfile = ((SedaModel) model).getQueueProfile(); |
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} |
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|
114 | 390 | if (queueTimeout == null) |
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{ |
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|
117 | 390 | setQueueTimeout(new Integer(((SedaModel) model).getQueueTimeout())); |
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} |
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|
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try |
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{ |
122 | 390 | if (name == null) |
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{ |
124 | 0 | throw new InitialisationException(MessageFactory.createStaticMessage("Service has no name to identify it"), this); |
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} |
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|
127 | 390 | queueProfile.configureQueue(name, muleContext.getQueueManager()); |
128 | 390 | queue = muleContext.getQueueManager().getQueueSession().getQueue(name + QUEUE_NAME_SUFFIX); |
129 | 390 | if (queue == null) |
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{ |
131 | 0 | throw new InitialisationException(MessageFactory.createStaticMessage("Queue not created for service " + name), this); |
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} |
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} |
134 | 0 | catch (InitialisationException e) |
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{ |
136 | 0 | throw e; |
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} |
138 | 0 | catch (Throwable e) |
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{ |
140 | 0 | throw new InitialisationException( |
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CoreMessages.objectFailedToInitialise("Service Queue"), e, this); |
142 | 390 | } |
143 | 390 | } |
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|
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protected void doForceStop() throws MuleException |
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{ |
147 | 0 | doStop(); |
148 | 0 | } |
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|
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protected void doStop() throws MuleException |
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{ |
152 | 14 | if (queue != null && queue.size() > 0) |
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{ |
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try |
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{ |
156 | 0 | stopping.whenFalse(null); |
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} |
158 | 0 | catch (InterruptedException e) |
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{ |
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|
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|
162 | 0 | } |
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} |
164 | 14 | workManager.dispose(); |
165 | 14 | } |
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|
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protected void doStart() throws MuleException |
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{ |
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try |
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{ |
171 | 14 | workManager.start(); |
172 | 14 | workManager.scheduleWork(this, WorkManager.INDEFINITE, null, this); |
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} |
174 | 0 | catch (Exception e) |
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{ |
176 | 0 | throw new LifecycleException( |
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CoreMessages.failedToStart("Service: " + name), e, this); |
178 | 14 | } |
179 | 14 | } |
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|
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protected void doDispose() |
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{ |
183 | 2 | queue = null; |
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|
185 | 2 | if (workManager != null) |
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{ |
187 | 2 | workManager.dispose(); |
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} |
189 | 2 | } |
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|
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protected void doDispatch(MuleEvent event) throws MuleException |
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{ |
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|
194 | 0 | if (stats.isEnabled()) |
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{ |
196 | 0 | stats.incReceivedEventASync(); |
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} |
198 | 0 | if (logger.isDebugEnabled()) |
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{ |
200 | 0 | logger.debug("Service: " + name + " has received asynchronous event on: " |
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+ event.getEndpoint().getEndpointURI()); |
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} |
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|
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|
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try |
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{ |
207 | 0 | enqueue(event); |
208 | 0 | if (stats.isEnabled()) |
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{ |
210 | 0 | stats.incQueuedEvent(); |
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} |
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} |
213 | 0 | catch (Exception e) |
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{ |
215 | 0 | FailedToQueueEventException e1 = new FailedToQueueEventException( |
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CoreMessages.interruptedQueuingEventFor(this.getName()), event.getMessage(), this, e); |
217 | 0 | handleException(e1); |
218 | 0 | } |
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|
220 | 0 | if (logger.isTraceEnabled()) |
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{ |
222 | 0 | logger.trace("MuleEvent added to queue for: " + name); |
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} |
224 | 0 | } |
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|
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protected MuleMessage doSend(MuleEvent event) throws MuleException |
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{ |
228 | 0 | MuleMessage result = null; |
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try |
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{ |
231 | 0 | if (logger.isDebugEnabled()) |
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{ |
233 | 0 | logger.debug(this + " : got proxy for " + event.getId() + " = " + component); |
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} |
235 | 0 | Object replyTo = event.getMessage().getReplyTo(); |
236 | 0 | ReplyToHandler replyToHandler = getReplyToHandler(event.getMessage(), (InboundEndpoint) event.getEndpoint()); |
237 | 0 | result = component.onCall(event); |
238 | 0 | result = sendToOutboundRouter(event, result); |
239 | 0 | result = processAsyncReplyRouter(result); |
240 | 0 | processReplyTo(event, result, replyToHandler, replyTo); |
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|
242 | 0 | if (stats.isEnabled()) |
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{ |
244 | 0 | stats.incSentEventSync(); |
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} |
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} |
247 | 0 | catch (Exception e) |
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{ |
249 | 0 | event.getSession().setValid(false); |
250 | 0 | if (e instanceof MessagingException) |
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{ |
252 | 0 | handleException(e); |
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} |
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else |
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{ |
256 | 0 | handleException(new MessagingException(CoreMessages.eventProcessingFailedFor(getName()), |
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event.getMessage(), e)); |
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} |
259 | 0 | if (result == null) |
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{ |
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|
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|
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|
264 | 0 | result = new DefaultMuleMessage(NullPayload.getInstance(), RequestContext.getEvent().getMessage()); |
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} |
266 | 0 | ExceptionPayload exceptionPayload = result.getExceptionPayload(); |
267 | 0 | if (exceptionPayload == null) |
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{ |
269 | 0 | exceptionPayload = new DefaultExceptionPayload(e); |
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} |
271 | 0 | result.setExceptionPayload(exceptionPayload); |
272 | 0 | } |
273 | 0 | return result; |
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} |
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|
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public int getQueueSize() |
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{ |
278 | 5 | if (queue == null) |
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{ |
280 | 0 | logger.warn(new InitialisationException(MessageFactory.createStaticMessage("Queue not created for service " + name), this)); |
281 | 0 | return -1; |
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} |
283 | 5 | return queue.size(); |
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} |
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|
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|
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|
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|
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|
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public void run() |
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{ |
292 | 14 | DefaultMuleEvent event = null; |
293 | 14 | QueueSession queueSession = muleContext.getQueueManager().getQueueSession(); |
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|
295 | 33 | while (!stopped.get()) |
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{ |
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try |
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{ |
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|
300 | 33 | paused.whenFalse(null); |
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|
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|
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|
304 | 33 | if (stopping.get()) |
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{ |
306 | 5 | if (queueSession == null || getQueueSize() <= 0) |
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{ |
308 | 5 | stopping.set(false); |
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break; |
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} |
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} |
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|
313 | 28 | event = (DefaultMuleEvent) dequeue(); |
314 | 19 | if (event != null) |
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{ |
316 | 0 | if (stats.isEnabled()) |
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{ |
318 | 0 | stats.decQueuedEvent(); |
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} |
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|
321 | 0 | if (logger.isDebugEnabled()) |
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{ |
323 | 0 | logger.debug("Service: " + name + " dequeued event on: " |
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+ event.getEndpoint().getEndpointURI()); |
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} |
326 | 0 | workManager.scheduleWork(new ComponentStageWorker(event), WorkManager.INDEFINITE, null, this); |
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} |
328 | |
} |
329 | 9 | catch (Exception e) |
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{ |
331 | 9 | if (isStopped() || isStopping()) |
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{ |
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break; |
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} |
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|
336 | 1 | if (e instanceof InterruptedException) |
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{ |
338 | 1 | stopping.set(false); |
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break; |
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} |
341 | 0 | else if (e instanceof NoSuchElementException) |
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{ |
343 | 0 | handleException(new ServiceException(CoreMessages.proxyPoolTimedOut(), |
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(event == null ? null : event.getMessage()), this, e)); |
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} |
346 | 0 | else if (e instanceof MuleException) |
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{ |
348 | 0 | handleException(e); |
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} |
350 | 0 | else if (e instanceof WorkException) |
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{ |
352 | 0 | handleException( |
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new ServiceException( |
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CoreMessages.eventProcessingFailedFor(name), |
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(event == null ? null : event.getMessage()), this, e)); |
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} |
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else |
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{ |
359 | 0 | handleException( |
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new ServiceException( |
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CoreMessages.failedToGetPooledObject(), |
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(event == null ? null : event.getMessage()), this, e)); |
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} |
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} |
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finally |
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{ |
367 | 33 | stopping.set(false); |
368 | 19 | } |
369 | |
} |
370 | 14 | } |
371 | |
|
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public void release() |
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{ |
374 | 0 | stopping.set(false); |
375 | 0 | } |
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|
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protected void enqueue(MuleEvent event) throws Exception |
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{ |
379 | 0 | if (queue == null) |
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{ |
381 | 0 | throw new InitialisationException(MessageFactory.createStaticMessage("Queue not created for service " + name), this); |
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} |
383 | 0 | if (logger.isDebugEnabled()) |
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{ |
385 | 0 | logger.debug("Service " + name + " putting event on queue " + queue.getName() + ": " + event); |
386 | |
} |
387 | 0 | queue.put(event); |
388 | 0 | } |
389 | |
|
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protected MuleEvent dequeue() throws Exception |
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{ |
392 | 28 | if (queue == null) |
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{ |
394 | 0 | throw new InitialisationException(MessageFactory.createStaticMessage("Queue not created for service " + name), this); |
395 | |
} |
396 | 28 | if (logger.isDebugEnabled()) |
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{ |
398 | 0 | logger.debug("Service " + name + " polling queue " + queue.getName() + ", timeout = " + queueTimeout); |
399 | |
} |
400 | 28 | if (getQueueTimeout() == null) |
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{ |
402 | 0 | throw new InitialisationException(CoreMessages.noServiceQueueTimeoutSet(this), this); |
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} |
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else |
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{ |
406 | 28 | return (MuleEvent) queue.poll(getQueueTimeout().intValue()); |
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} |
408 | |
} |
409 | |
|
410 | |
public void workAccepted(WorkEvent event) |
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{ |
412 | 14 | handleWorkException(event, "workAccepted"); |
413 | 14 | } |
414 | |
|
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public void workRejected(WorkEvent event) |
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{ |
417 | 0 | handleWorkException(event, "workRejected"); |
418 | 0 | } |
419 | |
|
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public void workStarted(WorkEvent event) |
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{ |
422 | 14 | handleWorkException(event, "workStarted"); |
423 | 14 | } |
424 | |
|
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public void workCompleted(WorkEvent event) |
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{ |
427 | 14 | handleWorkException(event, "workCompleted"); |
428 | 14 | } |
429 | |
|
430 | |
protected void handleWorkException(WorkEvent event, String type) |
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{ |
432 | |
Throwable e; |
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|
434 | 44 | if (event != null && event.getException() != null) |
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{ |
436 | 2 | e = event.getException(); |
437 | |
} |
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else |
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{ |
440 | 42 | return; |
441 | |
} |
442 | |
|
443 | 2 | if (event.getException().getCause() != null) |
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{ |
445 | 2 | e = event.getException().getCause(); |
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} |
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|
448 | 2 | logger.error("Work caused exception on '" + type + "'. Work being executed was: " |
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+ event.getWork().toString()); |
450 | |
|
451 | 2 | if (e instanceof Exception) |
452 | |
{ |
453 | 0 | handleException((Exception) e); |
454 | |
} |
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else |
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{ |
457 | 2 | throw new MuleRuntimeException( |
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CoreMessages.componentCausedErrorIs(this.getName()), e); |
459 | |
} |
460 | 0 | } |
461 | |
|
462 | |
protected ServiceStatistics createStatistics() |
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{ |
464 | 390 | return new ServiceStatistics(getName(), threadingProfile.getMaxThreadsActive()); |
465 | |
} |
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|
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public Object getInstance() throws MuleException |
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{ |
469 | 0 | throw new UnsupportedOperationException("Direct access to underlying service object is not allowed in the SedaModel. If this is for a unit test, make sure you are using the TestSedaModel ('seda-test')"); |
470 | |
} |
471 | |
|
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public QueueProfile getQueueProfile() |
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{ |
474 | 0 | return queueProfile; |
475 | |
} |
476 | |
|
477 | |
public void setQueueProfile(QueueProfile queueProfile) |
478 | |
{ |
479 | 4 | this.queueProfile = queueProfile; |
480 | 4 | } |
481 | |
|
482 | |
public Integer getQueueTimeout() |
483 | |
{ |
484 | 60 | return queueTimeout; |
485 | |
} |
486 | |
|
487 | |
public void setQueueTimeout(Integer queueTimeout) |
488 | |
{ |
489 | 390 | this.queueTimeout = queueTimeout; |
490 | 390 | } |
491 | |
|
492 | |
public ThreadingProfile getThreadingProfile() |
493 | |
{ |
494 | 0 | return threadingProfile; |
495 | |
} |
496 | |
|
497 | |
public void setThreadingProfile(ThreadingProfile threadingProfile) |
498 | |
{ |
499 | 0 | this.threadingProfile = threadingProfile; |
500 | 0 | } |
501 | |
|
502 | |
public WorkManager getWorkManager() |
503 | |
{ |
504 | 0 | return workManager; |
505 | |
} |
506 | |
|
507 | |
public void setWorkManager(WorkManager workManager) |
508 | |
{ |
509 | 0 | this.workManager = workManager; |
510 | 0 | } |
511 | |
|
512 | |
protected void dispatchToOutboundRouter(MuleEvent event, MuleMessage result) throws MessagingException |
513 | |
{ |
514 | 0 | super.dispatchToOutboundRouter(event, result); |
515 | |
|
516 | |
|
517 | 0 | } |
518 | |
|
519 | |
private class ComponentStageWorker implements Work |
520 | |
{ |
521 | |
private MuleEvent event; |
522 | |
|
523 | |
public ComponentStageWorker(MuleEvent event) |
524 | 0 | { |
525 | 0 | this.event = event; |
526 | 0 | } |
527 | |
|
528 | |
public void run() |
529 | |
{ |
530 | |
try |
531 | |
{ |
532 | 0 | event = OptimizedRequestContext.criticalSetEvent(event); |
533 | 0 | Object replyTo = event.getMessage().getReplyTo(); |
534 | 0 | ReplyToHandler replyToHandler = getReplyToHandler(event.getMessage(), |
535 | |
(InboundEndpoint) event.getEndpoint()); |
536 | 0 | MuleMessage result = component.onCall(event); |
537 | 0 | dispatchToOutboundRouter(event, result); |
538 | 0 | processReplyTo(event, result, replyToHandler, replyTo); |
539 | |
} |
540 | 0 | catch (Exception e) |
541 | |
{ |
542 | 0 | event.getSession().setValid(false); |
543 | 0 | if (e instanceof MessagingException) |
544 | |
{ |
545 | 0 | handleException(e); |
546 | |
} |
547 | |
else |
548 | |
{ |
549 | 0 | handleException(new MessagingException(CoreMessages.eventProcessingFailedFor(getName()), |
550 | |
event.getMessage(), e)); |
551 | |
} |
552 | 0 | } |
553 | 0 | } |
554 | |
|
555 | |
public void release() |
556 | |
{ |
557 | |
|
558 | 0 | } |
559 | |
} |
560 | |
} |