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package org.mule.service; |
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|
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import org.mule.DefaultMuleEvent; |
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import org.mule.RequestContext; |
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import org.mule.api.MuleContext; |
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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.component.Component; |
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import org.mule.api.construct.FlowConstruct; |
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import org.mule.api.construct.FlowConstructAware; |
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import org.mule.api.context.MuleContextAware; |
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import org.mule.api.exception.MessagingExceptionHandler; |
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import org.mule.api.lifecycle.Disposable; |
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import org.mule.api.lifecycle.Initialisable; |
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import org.mule.api.lifecycle.InitialisationException; |
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import org.mule.api.lifecycle.LifecycleCallback; |
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import org.mule.api.lifecycle.LifecycleManager; |
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import org.mule.api.lifecycle.LifecycleState; |
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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.model.Model; |
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import org.mule.api.processor.MessageProcessor; |
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import org.mule.api.routing.MessageInfoMapping; |
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import org.mule.api.routing.RouterStatisticsRecorder; |
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import org.mule.api.service.Service; |
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import org.mule.api.source.MessageSource; |
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import org.mule.component.simple.PassThroughComponent; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.lifecycle.EmptyLifecycleCallback; |
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import org.mule.lifecycle.processor.ProcessIfStartedWaitIfPausedMessageProcessor; |
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import org.mule.management.stats.RouterStatistics; |
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import org.mule.management.stats.ServiceStatistics; |
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import org.mule.processor.AbstractInterceptingMessageProcessor; |
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import org.mule.processor.builder.InterceptingChainMessageProcessorBuilder; |
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import org.mule.routing.MuleMessageInfoMapping; |
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import org.mule.routing.outbound.DefaultOutboundRouterCollection; |
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import org.mule.service.processor.ServiceAsyncRequestReplyRequestor; |
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import org.mule.util.ClassUtils; |
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|
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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|
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|
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|
57 | 0 | public abstract class AbstractService implements Service, MessageProcessor |
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{ |
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|
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|
63 | 0 | protected transient Log logger = LogFactory.getLog(getClass()); |
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|
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protected ServiceStatistics stats; |
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|
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|
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|
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protected Model model; |
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|
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protected MuleContext muleContext; |
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|
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protected ServiceLifecycleManager lifecycleManager; |
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public static final String INITIAL_STATE_STOPPED = "stopped"; |
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public static final String INITIAL_STATE_STARTED = "started"; |
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public static final String INITIAL_STATE_PAUSED = "paused"; |
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protected MessagingExceptionHandler exceptionListener; |
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protected String name; |
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|
92 | 0 | protected MessageProcessor outboundRouter = new DefaultOutboundRouterCollection(); |
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|
94 | 0 | protected MessageSource messageSource = new ServiceCompositeMessageSource(); |
95 | 0 | protected ServiceAsyncReplyCompositeMessageSource asyncReplyMessageSource = new ServiceAsyncReplyCompositeMessageSource(); |
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|
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protected MessageProcessor messageProcessorChain; |
98 | 0 | protected MessageInfoMapping messageInfoMapping = new MuleMessageInfoMapping(); |
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|
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|
104 | 0 | protected String initialState = INITIAL_STATE_STARTED; |
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|
114 | 0 | protected Component component = new PassThroughComponent(); |
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|
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public AbstractService(MuleContext muleContext) |
117 | 0 | { |
118 | 0 | this.muleContext = muleContext; |
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try |
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{ |
121 | 0 | lifecycleManager = new ServiceLifecycleManager(this); |
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} |
123 | 0 | catch (MuleException e) |
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{ |
125 | 0 | throw new MuleRuntimeException(CoreMessages.failedToCreate("Service Lifecycle Manager"), e); |
126 | 0 | } |
127 | |
|
128 | 0 | } |
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public final synchronized void initialise() throws InitialisationException |
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{ |
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try |
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{ |
148 | 0 | lifecycleManager.fireInitialisePhase(new LifecycleCallback<FlowConstruct>() |
149 | 0 | { |
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public void onTransition(String phaseName, FlowConstruct object) throws MuleException |
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{ |
152 | 0 | if (outboundRouter instanceof MuleContextAware) |
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{ |
154 | 0 | ((MuleContextAware) outboundRouter).setMuleContext(muleContext); |
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} |
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|
157 | 0 | if (exceptionListener == null) |
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{ |
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|
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|
161 | 0 | exceptionListener = getModel().getExceptionListener(); |
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} |
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|
164 | 0 | if (messageSource instanceof FlowConstructAware) |
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{ |
166 | 0 | ((FlowConstructAware) messageSource).setFlowConstruct(object); |
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} |
168 | 0 | asyncReplyMessageSource.setFlowConstruct(object); |
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|
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|
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|
173 | 0 | component.setFlowConstruct(object); |
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|
175 | 0 | doInitialise(); |
176 | 0 | } |
177 | |
}); |
178 | |
} |
179 | 0 | catch (InitialisationException e) |
180 | |
{ |
181 | 0 | throw e; |
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} |
183 | 0 | catch (MuleException e) |
184 | |
{ |
185 | 0 | throw new InitialisationException(e, this); |
186 | 0 | } |
187 | |
|
188 | 0 | } |
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|
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public void start() throws MuleException |
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{ |
192 | 0 | if (!isStopped() && initialState.equals(AbstractService.INITIAL_STATE_STOPPED)) |
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{ |
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|
195 | 0 | lifecycleManager.fireStartPhase(new EmptyLifecycleCallback<FlowConstruct>()); |
196 | 0 | lifecycleManager.fireStopPhase(new EmptyLifecycleCallback<FlowConstruct>()); |
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|
198 | 0 | logger.info("Service " + name + " has not been started (initial state = 'stopped')"); |
199 | 0 | return; |
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} |
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|
202 | 0 | lifecycleManager.fireStartPhase(new LifecycleCallback<FlowConstruct>() |
203 | 0 | { |
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public void onTransition(String phaseName, FlowConstruct object) throws MuleException |
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{ |
206 | 0 | doStart(); |
207 | 0 | } |
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}); |
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|
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|
211 | 0 | if ( initialState.equals(AbstractService.INITIAL_STATE_PAUSED)) |
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{ |
213 | 0 | pause(); |
214 | 0 | logger.info("Service " + name + " has been started and paused (initial state = 'paused')"); |
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} |
216 | |
|
217 | 0 | } |
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public final void pause() throws MuleException |
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{ |
226 | 0 | lifecycleManager.firePausePhase(new LifecycleCallback<FlowConstruct>() |
227 | 0 | { |
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public void onTransition(String phaseName, FlowConstruct object) throws MuleException |
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{ |
230 | 0 | doPause(); |
231 | 0 | } |
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}); |
233 | 0 | } |
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|
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public final void resume() throws MuleException |
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{ |
241 | 0 | lifecycleManager.fireResumePhase(new LifecycleCallback<FlowConstruct>() |
242 | 0 | { |
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public void onTransition(String phaseName, FlowConstruct object) throws MuleException |
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{ |
245 | 0 | doResume(); |
246 | 0 | } |
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}); |
248 | 0 | } |
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|
250 | |
|
251 | |
public void stop() throws MuleException |
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{ |
253 | 0 | lifecycleManager.fireStopPhase(new LifecycleCallback<FlowConstruct>() |
254 | 0 | { |
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public void onTransition(String phaseName, FlowConstruct object) throws MuleException |
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{ |
257 | 0 | doStop(); |
258 | 0 | } |
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}); |
260 | 0 | } |
261 | |
|
262 | |
public final void dispose() |
263 | |
{ |
264 | |
|
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try |
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{ |
267 | 0 | if(isStarted()) |
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{ |
269 | 0 | stop(); |
270 | |
} |
271 | |
|
272 | 0 | lifecycleManager.fireDisposePhase(new LifecycleCallback<FlowConstruct>() |
273 | 0 | { |
274 | |
public void onTransition(String phaseName, FlowConstruct object) throws MuleException |
275 | |
{ |
276 | 0 | doDispose(); |
277 | 0 | } |
278 | |
}); |
279 | |
} |
280 | 0 | catch (MuleException e) |
281 | |
{ |
282 | 0 | logger.error("Failed to stop service: " + name, e); |
283 | 0 | } |
284 | 0 | } |
285 | |
|
286 | |
public LifecycleState getLifecycleState() |
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{ |
288 | 0 | return lifecycleManager.getState(); |
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} |
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|
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public boolean isStarted() |
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{ |
293 | 0 | return lifecycleManager.getState().isStarted(); |
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} |
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|
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public boolean isPaused() |
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{ |
303 | 0 | return lifecycleManager.getCurrentPhase().equals(Pausable.PHASE_NAME); |
304 | |
} |
305 | |
|
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public boolean isStopped() |
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{ |
308 | 0 | return lifecycleManager.getState().isStopped(); |
309 | |
} |
310 | |
|
311 | |
public boolean isStopping() |
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{ |
313 | 0 | return lifecycleManager.getState().isStopping(); |
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} |
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|
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protected void doPause() throws MuleException |
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{ |
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|
326 | 0 | } |
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|
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|
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protected void doResume() throws MuleException |
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{ |
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|
338 | 0 | } |
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|
340 | |
protected void doForceStop() throws MuleException |
341 | |
{ |
342 | |
|
343 | 0 | } |
344 | |
|
345 | |
protected void doStop() throws MuleException |
346 | |
{ |
347 | 0 | if (messageSource instanceof Stoppable) |
348 | |
{ |
349 | 0 | ((Stoppable) messageSource).stop(); |
350 | |
} |
351 | 0 | asyncReplyMessageSource.stop(); |
352 | |
|
353 | |
|
354 | 0 | if (component instanceof Stoppable) |
355 | |
{ |
356 | 0 | ((Stoppable) component).stop(); |
357 | |
} |
358 | 0 | if (messageProcessorChain instanceof Stoppable) |
359 | |
{ |
360 | 0 | ((Stoppable) messageProcessorChain).stop(); |
361 | |
} |
362 | 0 | } |
363 | |
|
364 | |
protected void doStart() throws MuleException |
365 | |
{ |
366 | |
|
367 | 0 | if (component instanceof Startable) |
368 | |
{ |
369 | 0 | ((Startable) component).start(); |
370 | |
} |
371 | 0 | if (messageProcessorChain instanceof Startable) |
372 | |
{ |
373 | 0 | ((Startable) messageProcessorChain).start(); |
374 | |
} |
375 | |
|
376 | 0 | if (messageSource instanceof Startable) |
377 | |
{ |
378 | 0 | ((Startable) messageSource).start(); |
379 | |
} |
380 | 0 | if (asyncReplyMessageSource.getEndpoints().size() > 0) |
381 | |
{ |
382 | 0 | asyncReplyMessageSource.start(); |
383 | |
} |
384 | 0 | } |
385 | |
|
386 | |
protected void doDispose() |
387 | |
{ |
388 | |
|
389 | 0 | if (component instanceof Disposable) |
390 | |
{ |
391 | 0 | ((Disposable) component).dispose(); |
392 | |
} |
393 | 0 | if (messageProcessorChain instanceof Disposable) |
394 | |
{ |
395 | 0 | ((Disposable) messageProcessorChain).dispose(); |
396 | |
} |
397 | 0 | if (messageSource instanceof Disposable) |
398 | |
{ |
399 | 0 | ((Disposable) messageSource).dispose(); |
400 | |
} |
401 | 0 | muleContext.getStatistics().remove(stats); |
402 | 0 | } |
403 | |
|
404 | |
protected void doInitialise() throws InitialisationException |
405 | |
{ |
406 | |
|
407 | 0 | stats = createStatistics(); |
408 | 0 | stats.setEnabled(muleContext.getStatistics().isEnabled()); |
409 | 0 | muleContext.getStatistics().add(stats); |
410 | 0 | RouterStatistics routerStatistics = new RouterStatistics(RouterStatistics.TYPE_OUTBOUND); |
411 | 0 | stats.setOutboundRouterStat(routerStatistics); |
412 | 0 | if (outboundRouter != null && outboundRouter instanceof RouterStatisticsRecorder) |
413 | |
{ |
414 | 0 | ((RouterStatisticsRecorder)outboundRouter).setRouterStatistics(routerStatistics); |
415 | |
} |
416 | 0 | RouterStatistics inboundRouterStatistics = new RouterStatistics(RouterStatistics.TYPE_INBOUND); |
417 | 0 | stats.setInboundRouterStat(inboundRouterStatistics); |
418 | 0 | if (messageSource instanceof RouterStatisticsRecorder) |
419 | |
{ |
420 | 0 | ((RouterStatisticsRecorder) messageSource).setRouterStatistics(inboundRouterStatistics); |
421 | |
} |
422 | 0 | stats.setComponentStat(component.getStatistics()); |
423 | |
|
424 | |
try |
425 | |
{ |
426 | 0 | buildServiceMessageProcessorChain(); |
427 | |
} |
428 | 0 | catch (MuleException e) |
429 | |
{ |
430 | 0 | throw new InitialisationException(e, this); |
431 | 0 | } |
432 | |
|
433 | |
|
434 | 0 | messageSource.setListener(new AbstractInterceptingMessageProcessor() |
435 | 0 | { |
436 | |
public MuleEvent process(MuleEvent event) throws MuleException |
437 | |
{ |
438 | 0 | return messageProcessorChain.process(event); |
439 | |
} |
440 | |
}); |
441 | |
|
442 | |
|
443 | 0 | if (component instanceof Initialisable) |
444 | |
{ |
445 | 0 | ((Initialisable) component).initialise(); |
446 | |
} |
447 | 0 | if (messageProcessorChain instanceof Initialisable) |
448 | |
{ |
449 | 0 | ((Initialisable) messageProcessorChain).initialise(); |
450 | |
} |
451 | 0 | if (messageSource instanceof Initialisable) |
452 | |
{ |
453 | 0 | ((Initialisable) messageSource).initialise(); |
454 | |
} |
455 | 0 | if (asyncReplyMessageSource.getEndpoints().size() > 0) |
456 | |
{ |
457 | 0 | asyncReplyMessageSource.initialise(); |
458 | |
} |
459 | |
|
460 | 0 | } |
461 | |
|
462 | |
public void forceStop() throws MuleException |
463 | |
{ |
464 | |
|
465 | |
|
466 | |
|
467 | |
|
468 | |
|
469 | |
|
470 | |
|
471 | |
|
472 | |
|
473 | |
|
474 | |
|
475 | |
|
476 | |
|
477 | 0 | doForceStop(); |
478 | 0 | stop(); |
479 | 0 | } |
480 | |
|
481 | |
|
482 | |
|
483 | |
|
484 | |
|
485 | |
|
486 | |
protected void buildServiceMessageProcessorChain() throws MuleException |
487 | |
{ |
488 | 0 | InterceptingChainMessageProcessorBuilder builder = new InterceptingChainMessageProcessorBuilder(this); |
489 | 0 | builder.setName("Service '" + name + "' Processor Chain"); |
490 | 0 | builder.chain(getServiceStartedAssertingMessageProcessor()); |
491 | 0 | addMessageProcessors(builder); |
492 | 0 | messageProcessorChain = builder.build(); |
493 | 0 | } |
494 | |
|
495 | |
protected MessageProcessor getServiceStartedAssertingMessageProcessor() |
496 | |
{ |
497 | 0 | return new ProcessIfStartedWaitIfPausedMessageProcessor(this, lifecycleManager.getState()); |
498 | |
} |
499 | |
|
500 | |
protected abstract void addMessageProcessors(InterceptingChainMessageProcessorBuilder builder); |
501 | |
|
502 | |
protected ServiceStatistics createStatistics() |
503 | |
{ |
504 | 0 | return new ServiceStatistics(name); |
505 | |
} |
506 | |
|
507 | |
public ServiceStatistics getStatistics() |
508 | |
{ |
509 | 0 | return stats; |
510 | |
} |
511 | |
|
512 | |
@Deprecated |
513 | |
public void dispatchEvent(MuleEvent event) throws MuleException |
514 | |
{ |
515 | 0 | messageProcessorChain.process(event); |
516 | 0 | } |
517 | |
|
518 | |
@Deprecated |
519 | |
public MuleEvent sendEvent(MuleEvent event) throws MuleException |
520 | |
{ |
521 | 0 | return messageProcessorChain.process(event); |
522 | |
} |
523 | |
|
524 | |
|
525 | |
|
526 | |
|
527 | |
public String getName() |
528 | |
{ |
529 | 0 | return name; |
530 | |
} |
531 | |
|
532 | |
@Override |
533 | |
public String toString() |
534 | |
{ |
535 | 0 | return String.format("%s{%s}", ClassUtils.getSimpleName(this.getClass()), getName()); |
536 | |
} |
537 | |
|
538 | |
|
539 | |
|
540 | |
|
541 | |
|
542 | |
|
543 | |
public Model getModel() |
544 | |
{ |
545 | 0 | return model; |
546 | |
} |
547 | |
|
548 | |
public void setModel(Model model) |
549 | |
{ |
550 | 0 | this.model = model; |
551 | 0 | } |
552 | |
|
553 | |
public MessagingExceptionHandler getExceptionListener() |
554 | |
{ |
555 | 0 | return exceptionListener; |
556 | |
} |
557 | |
|
558 | |
public void setExceptionListener(MessagingExceptionHandler exceptionListener) |
559 | |
{ |
560 | 0 | this.exceptionListener = exceptionListener; |
561 | 0 | } |
562 | |
|
563 | |
public MessageSource getMessageSource() |
564 | |
{ |
565 | 0 | return messageSource; |
566 | |
} |
567 | |
|
568 | |
public void setMessageSource(MessageSource inboundMessageSource) |
569 | |
{ |
570 | 0 | this.messageSource = inboundMessageSource; |
571 | 0 | } |
572 | |
|
573 | |
public MessageProcessor getOutboundMessageProcessor() |
574 | |
{ |
575 | 0 | return outboundRouter; |
576 | |
} |
577 | |
|
578 | |
|
579 | |
@Deprecated |
580 | |
public void setMessageProcessor(MessageProcessor processor) |
581 | |
{ |
582 | 0 | setOutboundMessageProcessor(processor); |
583 | 0 | } |
584 | |
|
585 | |
public void setOutboundMessageProcessor(MessageProcessor processor) |
586 | |
{ |
587 | 0 | this.outboundRouter = processor; |
588 | 0 | } |
589 | |
|
590 | |
public ServiceAsyncReplyCompositeMessageSource getAsyncReplyMessageSource() |
591 | |
{ |
592 | 0 | return asyncReplyMessageSource; |
593 | |
} |
594 | |
|
595 | |
public void setAsyncReplyMessageSource(ServiceAsyncReplyCompositeMessageSource asyncReplyMessageSource) |
596 | |
{ |
597 | 0 | this.asyncReplyMessageSource = asyncReplyMessageSource; |
598 | 0 | } |
599 | |
|
600 | |
public String getInitialState() |
601 | |
{ |
602 | 0 | return initialState; |
603 | |
} |
604 | |
|
605 | |
public void setInitialState(String initialState) |
606 | |
{ |
607 | 0 | this.initialState = initialState; |
608 | 0 | } |
609 | |
|
610 | |
public void setName(String name) |
611 | |
{ |
612 | 0 | this.name = name; |
613 | 0 | } |
614 | |
|
615 | |
public Component getComponent() |
616 | |
{ |
617 | 0 | return component; |
618 | |
} |
619 | |
|
620 | |
public void setComponent(Component component) |
621 | |
{ |
622 | 0 | this.component = component; |
623 | 0 | this.component.setFlowConstruct(this); |
624 | 0 | } |
625 | |
|
626 | |
public MuleContext getMuleContext() |
627 | |
{ |
628 | 0 | return muleContext; |
629 | |
} |
630 | |
|
631 | |
public LifecycleManager getLifecycleManager() |
632 | |
{ |
633 | 0 | return lifecycleManager; |
634 | |
} |
635 | |
|
636 | |
public MessageInfoMapping getMessageInfoMapping() |
637 | |
{ |
638 | 0 | return messageInfoMapping; |
639 | |
} |
640 | |
|
641 | |
public void setMessageInfoMapping(MessageInfoMapping messageInfoMapping) |
642 | |
{ |
643 | 0 | this.messageInfoMapping = messageInfoMapping; |
644 | 0 | } |
645 | |
|
646 | |
protected long getAsyncReplyTimeout() |
647 | |
{ |
648 | 0 | if (asyncReplyMessageSource.getTimeout() != null) |
649 | |
{ |
650 | 0 | return asyncReplyMessageSource.getTimeout().longValue(); |
651 | |
} |
652 | |
else |
653 | |
{ |
654 | 0 | return muleContext.getConfiguration().getDefaultResponseTimeout(); |
655 | |
} |
656 | |
} |
657 | |
|
658 | |
protected ServiceAsyncRequestReplyRequestor createAsyncReplyProcessor() |
659 | |
{ |
660 | 0 | ServiceAsyncRequestReplyRequestor asyncReplyMessageProcessor = new ServiceAsyncRequestReplyRequestor(); |
661 | 0 | asyncReplyMessageProcessor.setTimeout(getAsyncReplyTimeout()); |
662 | 0 | asyncReplyMessageProcessor.setFailOnTimeout(asyncReplyMessageSource.isFailOnTimeout()); |
663 | 0 | asyncReplyMessageProcessor.setReplySource(asyncReplyMessageSource); |
664 | 0 | return asyncReplyMessageProcessor; |
665 | |
} |
666 | |
|
667 | |
public MuleEvent process(MuleEvent event) throws MuleException |
668 | |
{ |
669 | 0 | MuleEvent newEvent = new DefaultMuleEvent(event.getMessage(), event.getEndpoint(), this, event); |
670 | 0 | RequestContext.setEvent(newEvent); |
671 | 0 | return messageProcessorChain.process(newEvent); |
672 | |
} |
673 | |
|
674 | |
} |