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package org.mule.processor; |
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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.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.context.WorkManagerSource; |
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import org.mule.api.lifecycle.Startable; |
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import org.mule.api.lifecycle.Stoppable; |
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import org.mule.api.processor.MessageProcessor; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.work.AbstractMuleEventWork; |
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import org.mule.work.MuleWorkManager; |
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import javax.resource.spi.work.WorkEvent; |
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import javax.resource.spi.work.WorkListener; |
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public class AsyncInterceptingMessageProcessor extends AbstractInterceptingMessageProcessor |
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implements WorkListener, Startable, Stoppable |
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{ |
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protected WorkManagerSource workManagerSource; |
41 | 0 | protected boolean doThreading = true; |
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protected WorkManager workManager; |
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public AsyncInterceptingMessageProcessor(WorkManagerSource workManagerSource) |
45 | 0 | { |
46 | 0 | this.workManagerSource = workManagerSource; |
47 | 0 | } |
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|
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@Deprecated |
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public AsyncInterceptingMessageProcessor(WorkManagerSource workManagerSource, boolean doThreading) |
51 | 0 | { |
52 | 0 | this.workManagerSource = workManagerSource; |
53 | 0 | this.doThreading = doThreading; |
54 | 0 | } |
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|
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public AsyncInterceptingMessageProcessor(ThreadingProfile threadingProfile, |
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String name, |
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int shutdownTimeout) |
59 | 0 | { |
60 | 0 | this.doThreading = threadingProfile.isDoThreading(); |
61 | 0 | workManager = threadingProfile.createWorkManager(name, shutdownTimeout); |
62 | 0 | workManagerSource = new WorkManagerSource() |
63 | 0 | { |
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public WorkManager getWorkManager() throws MuleException |
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{ |
66 | 0 | return workManager; |
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} |
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}; |
69 | 0 | } |
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public void start() throws MuleException |
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{ |
73 | 0 | if (workManager != null) |
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{ |
75 | 0 | workManager.start(); |
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} |
77 | 0 | } |
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public void stop() throws MuleException |
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{ |
81 | 0 | if (workManager != null) |
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{ |
83 | 0 | workManager.dispose(); |
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} |
85 | 0 | } |
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public MuleEvent process(MuleEvent event) throws MuleException |
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{ |
89 | 0 | if (next == null) |
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{ |
91 | 0 | return event; |
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} |
93 | 0 | else if (isProcessAsync(event)) |
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{ |
95 | 0 | processNextAsync(event); |
96 | 0 | return null; |
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} |
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else |
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{ |
100 | 0 | return processNext(event); |
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} |
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} |
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protected boolean isProcessAsync(MuleEvent event) throws MessagingException |
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{ |
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|
107 | 0 | if (event.getEndpoint().getTransactionConfig().isTransacted()) |
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{ |
109 | 0 | throw new MessagingException(CoreMessages.asyncDoesNotSupportTransactions(), event); |
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} |
111 | 0 | return doThreading; |
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} |
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protected void processNextAsync(MuleEvent event) throws MuleException |
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{ |
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try |
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{ |
118 | 0 | workManagerSource.getWorkManager().scheduleWork(new AsyncMessageProcessorWorker(event), |
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WorkManager.INDEFINITE, null, this); |
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} |
121 | 0 | catch (Exception e) |
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{ |
123 | 0 | new MessagingException(CoreMessages.errorSchedulingMessageProcessorForAsyncInvocation(next), |
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event, e); |
125 | 0 | } |
126 | 0 | } |
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public void workAccepted(WorkEvent event) |
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{ |
130 | 0 | this.handleWorkException(event, "workAccepted"); |
131 | 0 | } |
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public void workRejected(WorkEvent event) |
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{ |
135 | 0 | this.handleWorkException(event, "workRejected"); |
136 | 0 | } |
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public void workStarted(WorkEvent event) |
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{ |
140 | 0 | this.handleWorkException(event, "workStarted"); |
141 | 0 | } |
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public void workCompleted(WorkEvent event) |
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{ |
145 | 0 | this.handleWorkException(event, "workCompleted"); |
146 | 0 | } |
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protected void handleWorkException(WorkEvent event, String type) |
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{ |
150 | 0 | if (event == null) |
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{ |
152 | 0 | return; |
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} |
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|
155 | 0 | Throwable e = event.getException(); |
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|
157 | 0 | if (e == null) |
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{ |
159 | 0 | return; |
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} |
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|
162 | 0 | if (e.getCause() != null) |
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{ |
164 | 0 | e = e.getCause(); |
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} |
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|
167 | 0 | logger.error("Work caused exception on '" + type + "'. Work being executed was: " |
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+ event.getWork().toString()); |
169 | 0 | throw new MuleRuntimeException(CoreMessages.errorInvokingMessageProcessorAsynchronously(next), e); |
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} |
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class AsyncMessageProcessorWorker extends AbstractMuleEventWork |
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{ |
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public AsyncMessageProcessorWorker(MuleEvent event) |
175 | 0 | { |
176 | 0 | super(event); |
177 | 0 | } |
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|
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@Override |
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protected void doRun() |
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{ |
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try |
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{ |
184 | 0 | processNext(event); |
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} |
186 | 0 | catch (MuleException e) |
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{ |
188 | 0 | event.getFlowConstruct().getExceptionListener().handleException(e, event); |
189 | 0 | } |
190 | 0 | } |
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} |
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} |