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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.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.interceptor.ProcessingTimeInterceptor; |
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import org.mule.work.AbstractMuleEventWork; |
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import org.mule.work.MuleWorkManager; |
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public class AsyncInterceptingMessageProcessor extends AbstractInterceptingMessageProcessor |
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implements Startable, Stoppable |
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{ |
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protected WorkManagerSource workManagerSource; |
34 | 0 | protected boolean doThreading = true; |
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protected WorkManager workManager; |
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public AsyncInterceptingMessageProcessor(WorkManagerSource workManagerSource) |
38 | 0 | { |
39 | 0 | this.workManagerSource = workManagerSource; |
40 | 0 | } |
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@Deprecated |
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public AsyncInterceptingMessageProcessor(WorkManagerSource workManagerSource, boolean doThreading) |
44 | 0 | { |
45 | 0 | this.workManagerSource = workManagerSource; |
46 | 0 | this.doThreading = doThreading; |
47 | 0 | } |
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public AsyncInterceptingMessageProcessor(ThreadingProfile threadingProfile, |
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String name, |
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int shutdownTimeout) |
52 | 0 | { |
53 | 0 | this.doThreading = threadingProfile.isDoThreading(); |
54 | 0 | workManager = threadingProfile.createWorkManager(name, shutdownTimeout); |
55 | 0 | workManagerSource = new WorkManagerSource() |
56 | 0 | { |
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public WorkManager getWorkManager() throws MuleException |
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{ |
59 | 0 | return workManager; |
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} |
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}; |
62 | 0 | } |
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public void start() throws MuleException |
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{ |
66 | 0 | if (workManager != null) |
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{ |
68 | 0 | workManager.start(); |
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} |
70 | 0 | } |
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public void stop() throws MuleException |
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{ |
74 | 0 | if (workManager != null) |
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{ |
76 | 0 | workManager.dispose(); |
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} |
78 | 0 | } |
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public MuleEvent process(MuleEvent event) throws MuleException |
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{ |
82 | 0 | if (next == null) |
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{ |
84 | 0 | return event; |
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} |
86 | 0 | else if (isProcessAsync(event)) |
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{ |
88 | 0 | processNextAsync(event); |
89 | 0 | return null; |
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} |
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else |
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{ |
93 | 0 | MuleEvent response = processNext(event); |
94 | 0 | return response; |
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} |
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} |
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protected MuleEvent processNextTimed(MuleEvent event) throws MuleException |
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{ |
100 | 0 | if (next == null) |
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{ |
102 | 0 | return event; |
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} |
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else |
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{ |
106 | 0 | if (logger.isTraceEnabled()) |
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{ |
108 | 0 | logger.trace("Invoking next MessageProcessor: '" + next.getClass().getName() + "' "); |
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} |
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MuleEvent response; |
112 | 0 | if (event.getFlowConstruct() != null) |
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{ |
114 | 0 | response = new ProcessingTimeInterceptor(next, event.getFlowConstruct()).process(event); |
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} |
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else |
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{ |
118 | 0 | response = processNext(event); |
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} |
120 | 0 | return response; |
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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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|
127 | 0 | if (event.getEndpoint().getTransactionConfig().isTransacted()) |
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{ |
129 | 0 | throw new MessagingException(CoreMessages.asyncDoesNotSupportTransactions(), event); |
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} |
131 | 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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{ |
138 | 0 | workManagerSource.getWorkManager().scheduleWork(new AsyncMessageProcessorWorker(event), |
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WorkManager.INDEFINITE, null, new AsyncWorkListener(next)); |
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} |
141 | 0 | catch (Exception e) |
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{ |
143 | 0 | new MessagingException(CoreMessages.errorSchedulingMessageProcessorForAsyncInvocation(next), |
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event, e); |
145 | 0 | } |
146 | 0 | } |
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class AsyncMessageProcessorWorker extends AbstractMuleEventWork |
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{ |
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public AsyncMessageProcessorWorker(MuleEvent event) |
151 | 0 | { |
152 | 0 | super(event); |
153 | 0 | } |
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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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{ |
160 | 0 | processNextTimed(event); |
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} |
162 | 0 | catch (Exception e) |
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{ |
164 | 0 | event.getFlowConstruct().getExceptionListener().handleException(e, event); |
165 | 0 | } |
166 | 0 | } |
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} |
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} |