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package org.mule.impl.model; |
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import org.mule.config.MuleProperties; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.impl.ImmutableMuleDescriptor; |
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import org.mule.impl.InterceptorsInvoker; |
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import org.mule.impl.MuleDescriptor; |
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import org.mule.impl.MuleEvent; |
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import org.mule.impl.MuleMessage; |
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import org.mule.impl.OptimizedRequestContext; |
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import org.mule.impl.RequestContext; |
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import org.mule.impl.endpoint.MuleEndpoint; |
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import org.mule.impl.endpoint.MuleEndpointURI; |
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import org.mule.impl.message.ExceptionPayload; |
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import org.mule.management.stats.ComponentStatistics; |
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import org.mule.management.stats.SedaComponentStatistics; |
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import org.mule.providers.AbstractConnector; |
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import org.mule.providers.NullPayload; |
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import org.mule.providers.ReplyToHandler; |
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import org.mule.umo.MessagingException; |
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import org.mule.umo.UMOEvent; |
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import org.mule.umo.UMOException; |
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import org.mule.umo.UMOExceptionPayload; |
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import org.mule.umo.UMOImmutableDescriptor; |
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import org.mule.umo.UMOInterceptor; |
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import org.mule.umo.UMOMessage; |
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import org.mule.umo.endpoint.UMOEndpoint; |
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import org.mule.umo.endpoint.UMOEndpointURI; |
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import org.mule.umo.endpoint.UMOImmutableEndpoint; |
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import org.mule.umo.lifecycle.Disposable; |
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import org.mule.umo.lifecycle.Initialisable; |
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import org.mule.umo.lifecycle.UMOLifecycleAdapter; |
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import org.mule.umo.model.ModelException; |
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import org.mule.umo.model.UMOEntryPointResolver; |
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import org.mule.umo.model.UMOModel; |
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import org.mule.util.ObjectPool; |
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import org.mule.util.queue.QueueSession; |
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|
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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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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public class DefaultMuleProxy implements MuleProxy |
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{ |
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|
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|
67 | 0 | private static Log logger = LogFactory.getLog(DefaultMuleProxy.class); |
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private UMOEvent event; |
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private UMOLifecycleAdapter umo; |
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private ImmutableMuleDescriptor descriptor; |
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|
87 | 0 | private boolean suspended = true; |
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private List interceptorList; |
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private ObjectPool proxyPool; |
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|
93 | 0 | private ComponentStatistics stat = null; |
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|
95 | 0 | private QueueSession queueSession = null; |
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public DefaultMuleProxy(Object component, MuleDescriptor descriptor, UMOModel model, ObjectPool proxyPool) |
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throws UMOException |
106 | 0 | { |
107 | 0 | this.descriptor = new ImmutableMuleDescriptor(descriptor); |
108 | 0 | this.proxyPool = proxyPool; |
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|
110 | 0 | UMOEntryPointResolver resolver = model.getEntryPointResolver(); |
111 | 0 | umo = model.getLifecycleAdapterFactory().create(component, descriptor, resolver); |
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|
113 | 0 | interceptorList = new ArrayList(descriptor.getInterceptors().size() + 1); |
114 | 0 | interceptorList.addAll(descriptor.getInterceptors()); |
115 | 0 | interceptorList.add(umo); |
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|
117 | 0 | for (Iterator iter = interceptorList.iterator(); iter.hasNext();) |
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{ |
119 | 0 | UMOInterceptor interceptor = (UMOInterceptor) iter.next(); |
120 | 0 | if (interceptor instanceof Initialisable) |
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{ |
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try |
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{ |
124 | 0 | ((Initialisable) interceptor).initialise(); |
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} |
126 | 0 | catch (Exception e) |
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{ |
128 | 0 | throw new ModelException( |
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CoreMessages.objectFailedToInitialise( |
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"Component '" + descriptor.getName() + "'"), e); |
131 | 0 | } |
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} |
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} |
134 | 0 | } |
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|
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public void start() throws UMOException |
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{ |
138 | 0 | checkDisposed(); |
139 | 0 | if (!umo.isStarted()) |
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{ |
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try |
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{ |
143 | 0 | umo.start(); |
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} |
145 | 0 | catch (Exception e) |
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{ |
147 | 0 | throw new ModelException( |
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CoreMessages.failedToStart("Component '" + descriptor.getName() + "'"), e); |
149 | 0 | } |
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} |
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|
152 | 0 | } |
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|
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public boolean isStarted() |
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{ |
156 | 0 | return umo.isStarted(); |
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} |
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|
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public void stop() throws UMOException |
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{ |
161 | 0 | checkDisposed(); |
162 | 0 | if (umo.isStarted()) |
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{ |
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try |
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{ |
166 | 0 | umo.stop(); |
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} |
168 | 0 | catch (Exception e) |
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{ |
170 | 0 | throw new ModelException( |
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CoreMessages.failedToStop("Component '" + descriptor.getName() + "'"), e); |
172 | 0 | } |
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} |
174 | 0 | } |
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|
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public void dispose() |
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{ |
178 | 0 | checkDisposed(); |
179 | 0 | for (Iterator iter = interceptorList.iterator(); iter.hasNext();) |
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{ |
181 | 0 | UMOInterceptor interceptor = (UMOInterceptor) iter.next(); |
182 | 0 | if (interceptor instanceof Disposable) |
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{ |
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try |
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{ |
186 | 0 | ((Disposable) interceptor).dispose(); |
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} |
188 | 0 | catch (Exception e) |
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{ |
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|
191 | 0 | logger.error( |
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CoreMessages.failedToDispose("Component '" + descriptor.getName() + "'"), e); |
193 | 0 | } |
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} |
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} |
196 | 0 | } |
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|
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private void checkDisposed() |
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{ |
200 | 0 | if (umo.isDisposed()) |
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{ |
202 | 0 | throw new IllegalStateException("Component has already been disposed of"); |
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} |
204 | 0 | } |
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public void onEvent(QueueSession session, UMOEvent event) |
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{ |
213 | 0 | this.queueSession = session; |
214 | 0 | this.event = event; |
215 | 0 | } |
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|
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public ComponentStatistics getStatistics() |
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{ |
219 | 0 | return stat; |
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} |
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public void setStatistics(ComponentStatistics stat) |
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{ |
224 | 0 | this.stat = stat; |
225 | 0 | } |
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public Object onCall(UMOEvent event) throws UMOException |
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{ |
236 | 0 | if (logger.isTraceEnabled()) |
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{ |
238 | 0 | logger.trace("MuleProxy: sync call for Mule UMO " + descriptor.getName()); |
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} |
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|
241 | 0 | UMOMessage returnMessage = null; |
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try |
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{ |
244 | 0 | if (event.getEndpoint().canReceive()) |
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{ |
246 | 0 | event = OptimizedRequestContext.unsafeSetEvent(event); |
247 | 0 | Object replyTo = event.getMessage().getReplyTo(); |
248 | 0 | ReplyToHandler replyToHandler = getReplyToHandler(event.getMessage(), event.getEndpoint()); |
249 | 0 | InterceptorsInvoker invoker = new InterceptorsInvoker(interceptorList, descriptor, |
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event.getMessage()); |
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|
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|
253 | 0 | long startTime = 0; |
254 | 0 | if (stat.isEnabled()) |
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{ |
256 | 0 | startTime = System.currentTimeMillis(); |
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} |
258 | 0 | returnMessage = invoker.execute(); |
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|
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|
261 | 0 | if (stat.isEnabled()) |
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{ |
263 | 0 | stat.addExecutionTime(System.currentTimeMillis() - startTime); |
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} |
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|
266 | 0 | event = RequestContext.getEvent(); |
267 | 0 | if (event.isStopFurtherProcessing()) |
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{ |
269 | 0 | logger.debug("Event stop further processing has been set, no outbound routing will be performed."); |
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} |
271 | 0 | if (returnMessage != null && !event.isStopFurtherProcessing()) |
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{ |
273 | 0 | if (descriptor.getOutboundRouter().hasEndpoints()) |
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{ |
275 | 0 | UMOMessage outboundReturnMessage = descriptor.getOutboundRouter().route( |
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returnMessage, event.getSession(), event.isSynchronous()); |
277 | 0 | if (outboundReturnMessage != null) |
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{ |
279 | 0 | returnMessage = outboundReturnMessage; |
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} |
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} |
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else |
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{ |
284 | 0 | logger.debug("Outbound router on component '" + descriptor.getName() |
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+ "' doesn't have any endpoints configured."); |
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} |
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} |
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|
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|
290 | 0 | if (returnMessage != null && descriptor.getResponseRouter() != null) |
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{ |
292 | 0 | logger.debug("Waiting for response router message"); |
293 | 0 | returnMessage = descriptor.getResponseRouter().getResponse(returnMessage); |
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} |
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|
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|
297 | 0 | if (returnMessage != null && replyToHandler != null) |
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{ |
299 | 0 | String requestor = (String) returnMessage.getProperty(MuleProperties.MULE_REPLY_TO_REQUESTOR_PROPERTY); |
300 | 0 | if ((requestor != null && !requestor.equals(descriptor.getName())) || requestor == null) |
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{ |
302 | 0 | replyToHandler.processReplyTo(event, returnMessage, replyTo); |
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} |
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} |
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|
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} |
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else |
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{ |
309 | 0 | returnMessage = event.getSession().sendEvent(event); |
310 | 0 | processReplyTo(returnMessage); |
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} |
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|
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|
314 | 0 | if (stat.isEnabled()) |
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{ |
316 | 0 | stat.incSentEventSync(); |
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} |
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} |
319 | 0 | catch (Exception e) |
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{ |
321 | 0 | event.getSession().setValid(false); |
322 | 0 | if (e instanceof MessagingException) |
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{ |
324 | 0 | handleException(e); |
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} |
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else |
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{ |
328 | 0 | handleException( |
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new MessagingException( |
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CoreMessages.eventProcessingFailedFor(descriptor.getName()), |
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event.getMessage(), e)); |
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} |
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|
334 | 0 | if (returnMessage == null) |
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{ |
336 | 0 | returnMessage = new MuleMessage(NullPayload.getInstance(), (Map) null); |
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} |
338 | 0 | UMOExceptionPayload exceptionPayload = RequestContext.getExceptionPayload(); |
339 | 0 | if (exceptionPayload == null) |
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{ |
341 | 0 | exceptionPayload = new ExceptionPayload(e); |
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} |
343 | 0 | returnMessage.setExceptionPayload(exceptionPayload); |
344 | 0 | } |
345 | 0 | return returnMessage; |
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} |
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|
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public void handleException(Exception exception) |
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{ |
356 | 0 | descriptor.getExceptionListener().exceptionThrown(exception); |
357 | 0 | } |
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|
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public String toString() |
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{ |
361 | 0 | return "proxy for: " + descriptor.toString(); |
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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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|
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public boolean isSuspended() |
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{ |
371 | 0 | return suspended; |
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} |
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|
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|
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|
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public void suspend() |
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{ |
379 | 0 | suspended = true; |
380 | 0 | } |
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|
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|
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|
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|
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public void resume() |
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{ |
387 | 0 | suspended = false; |
388 | 0 | } |
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|
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protected ReplyToHandler getReplyToHandler(UMOMessage message, UMOImmutableEndpoint endpoint) |
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{ |
392 | 0 | Object replyTo = message.getReplyTo(); |
393 | 0 | ReplyToHandler replyToHandler = null; |
394 | 0 | if (replyTo != null) |
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{ |
396 | 0 | replyToHandler = ((AbstractConnector) endpoint.getConnector()).getReplyToHandler(); |
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|
398 | 0 | if (endpoint.getResponseTransformer() != null) |
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{ |
400 | 0 | replyToHandler.setTransformer(endpoint.getResponseTransformer()); |
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} |
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} |
403 | 0 | return replyToHandler; |
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} |
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|
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private void processReplyTo(UMOMessage returnMessage) throws UMOException |
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{ |
408 | 0 | if (returnMessage != null && returnMessage.getReplyTo() != null) |
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{ |
410 | 0 | if (logger.isDebugEnabled()) |
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{ |
412 | 0 | logger.debug("sending reply to: " + returnMessage.getReplyTo()); |
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} |
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|
415 | 0 | UMOEndpointURI endpointUri = new MuleEndpointURI(returnMessage.getReplyTo().toString()); |
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|
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|
418 | 0 | UMOEndpoint endpoint = MuleEndpoint.getOrCreateEndpointForUri(endpointUri, |
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UMOEndpoint.ENDPOINT_TYPE_SENDER); |
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|
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|
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|
423 | 0 | returnMessage.removeProperty(MuleProperties.MULE_REPLY_TO_PROPERTY); |
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|
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|
426 | 0 | UMOEvent replyToEvent = new MuleEvent(returnMessage, endpoint, event.getSession(), false); |
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|
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|
429 | 0 | onEvent(queueSession, replyToEvent); |
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|
431 | 0 | if (logger.isDebugEnabled()) |
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{ |
433 | 0 | logger.debug("reply to sent: " + returnMessage.getReplyTo()); |
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} |
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|
436 | 0 | if (stat.isEnabled()) |
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{ |
438 | 0 | stat.incSentReplyToEvent(); |
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} |
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} |
441 | 0 | } |
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|
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public void run() |
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{ |
445 | 0 | if (logger.isTraceEnabled()) |
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{ |
447 | 0 | logger.trace("MuleProxy: async onEvent for Mule UMO " + descriptor.getName()); |
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} |
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|
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try |
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{ |
452 | 0 | if (event.getEndpoint().canReceive()) |
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{ |
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|
455 | 0 | event = OptimizedRequestContext.criticalSetEvent(event); |
456 | 0 | Object replyTo = event.getMessage().getReplyTo(); |
457 | 0 | ReplyToHandler replyToHandler = getReplyToHandler(event.getMessage(), event.getEndpoint()); |
458 | 0 | InterceptorsInvoker invoker = |
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new InterceptorsInvoker(interceptorList, descriptor, event.getMessage()); |
460 | |
|
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|
462 | 0 | long startTime = 0; |
463 | 0 | if (stat.isEnabled()) |
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{ |
465 | 0 | startTime = System.currentTimeMillis(); |
466 | |
} |
467 | 0 | UMOMessage result = invoker.execute(); |
468 | 0 | if (stat.isEnabled()) |
469 | |
{ |
470 | 0 | stat.addExecutionTime(System.currentTimeMillis() - startTime); |
471 | |
} |
472 | |
|
473 | 0 | event = RequestContext.getEvent(); |
474 | 0 | if (result != null && !event.isStopFurtherProcessing()) |
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{ |
476 | 0 | descriptor.getOutboundRouter().route(result, event.getSession(), event.isSynchronous()); |
477 | |
} |
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|
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|
480 | 0 | if (result != null && replyToHandler != null) |
481 | |
{ |
482 | 0 | String requestor = (String) result.getProperty(MuleProperties.MULE_REPLY_TO_REQUESTOR_PROPERTY); |
483 | 0 | if ((requestor != null && !requestor.equals(descriptor.getName())) || requestor == null) |
484 | |
{ |
485 | 0 | replyToHandler.processReplyTo(event, result, replyTo); |
486 | |
} |
487 | |
} |
488 | |
} |
489 | |
else |
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{ |
491 | 0 | event.getEndpoint().dispatch(event); |
492 | |
} |
493 | |
|
494 | 0 | if (stat.isEnabled()) |
495 | |
{ |
496 | 0 | stat.incSentEventASync(); |
497 | |
} |
498 | 0 | } |
499 | 0 | catch (Exception e) |
500 | |
{ |
501 | 0 | event.getSession().setValid(false); |
502 | 0 | if (e instanceof MessagingException) |
503 | |
{ |
504 | 0 | handleException(e); |
505 | |
} |
506 | |
else |
507 | |
{ |
508 | 0 | handleException( |
509 | |
new MessagingException( |
510 | |
CoreMessages.eventProcessingFailedFor(descriptor.getName()), |
511 | |
event.getMessage(), e)); |
512 | |
} |
513 | 0 | } |
514 | |
finally |
515 | |
{ |
516 | 0 | try |
517 | |
{ |
518 | 0 | proxyPool.returnObject(this); |
519 | |
} |
520 | 0 | catch (Exception e2) |
521 | |
{ |
522 | |
|
523 | 0 | logger.error("Failed to return proxy: " + e2.getMessage(), e2); |
524 | 0 | } |
525 | |
|
526 | 0 | if (getStatistics() instanceof SedaComponentStatistics) |
527 | |
{ |
528 | 0 | ((SedaComponentStatistics) getStatistics()).setComponentPoolSize(proxyPool.getSize()); |
529 | |
} |
530 | 0 | } |
531 | 0 | } |
532 | |
|
533 | |
public void release() |
534 | |
{ |
535 | |
|
536 | 0 | } |
537 | |
|
538 | |
public UMOImmutableDescriptor getDescriptor() |
539 | |
{ |
540 | 0 | return descriptor; |
541 | |
} |
542 | |
} |