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package org.mule.exception; |
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import org.mule.DefaultMuleMessage; |
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import org.mule.RequestContext; |
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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.MuleMessage; |
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import org.mule.api.exception.MessagingExceptionHandler; |
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import org.mule.api.lifecycle.LifecycleException; |
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import org.mule.api.processor.MessageProcessor; |
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import org.mule.api.routing.RoutingException; |
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import org.mule.context.notification.ExceptionNotification; |
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import org.mule.message.DefaultExceptionPayload; |
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import org.mule.transport.NullPayload; |
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import org.mule.util.ObjectUtils; |
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32 | 0 | public abstract class AbstractMessagingExceptionStrategy extends AbstractExceptionListener implements MessagingExceptionHandler |
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{ |
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public MuleEvent handleException(Exception e, MuleEvent event) |
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{ |
39 | 0 | if (enableNotifications) |
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{ |
41 | 0 | fireNotification(new ExceptionNotification(e)); |
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} |
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44 | 0 | logException(e); |
45 | 0 | handleTransaction(e); |
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47 | 0 | Throwable t = getExceptionType(e, RoutingException.class); |
48 | 0 | if (t != null) |
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{ |
50 | 0 | RoutingException re = (RoutingException) t; |
51 | 0 | handleRoutingException(re.getMuleMessage(), re.getRoute(), e); |
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53 | 0 | event.getMessage().setPayload(NullPayload.getInstance()); |
54 | 0 | event.getMessage().setExceptionPayload(new DefaultExceptionPayload(e)); |
55 | 0 | return event; |
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} |
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58 | 0 | t = getExceptionType(e, MessagingException.class); |
59 | 0 | if (t != null) |
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{ |
61 | 0 | MessagingException me = (MessagingException) t; |
62 | 0 | handleMessagingException(me.getMuleMessage(), e); |
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64 | 0 | event.getMessage().setPayload(NullPayload.getInstance()); |
65 | 0 | event.getMessage().setExceptionPayload(new DefaultExceptionPayload(e)); |
66 | 0 | return event; |
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} |
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69 | 0 | t = getExceptionType(e, LifecycleException.class); |
70 | 0 | if (t != null) |
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{ |
72 | 0 | LifecycleException le = (LifecycleException) t; |
73 | 0 | handleLifecycleException(le.getComponent(), e); |
74 | 0 | event.getMessage().setPayload(NullPayload.getInstance()); |
75 | 0 | event.getMessage().setExceptionPayload(new DefaultExceptionPayload(e)); |
76 | 0 | return event; |
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} |
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79 | 0 | handleStandardException(e); |
80 | 0 | event.getMessage().setPayload(NullPayload.getInstance()); |
81 | 0 | event.getMessage().setExceptionPayload(new DefaultExceptionPayload(e)); |
82 | 0 | return event; |
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} |
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public void handleMessagingException(MuleMessage message, Throwable t) |
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{ |
87 | 0 | defaultHandler(t); |
88 | 0 | routeException(messageFromContextIfAvailable(message), null, t); |
89 | 0 | } |
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public void handleRoutingException(MuleMessage message, MessageProcessor target, Throwable t) |
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{ |
93 | 0 | defaultHandler(t); |
94 | 0 | routeException(messageFromContextIfAvailable(message), target, t); |
95 | 0 | } |
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public void handleLifecycleException(Object component, Throwable t) |
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{ |
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101 | 0 | handleStandardException(t); |
102 | 0 | logger.error("The object that failed was: \n" + ObjectUtils.toString(component, "null")); |
103 | 0 | } |
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public void handleStandardException(Throwable t) |
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{ |
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108 | 0 | if (RequestContext.getEventContext() != null) |
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{ |
110 | 0 | handleMessagingException(RequestContext.getEventContext().getMessage(), t); |
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} |
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else |
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{ |
114 | 0 | logger.info("There is no current event available, routing Null message with the exception"); |
115 | 0 | handleMessagingException(new DefaultMuleMessage(NullPayload.getInstance(), muleContext), t); |
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} |
117 | 0 | } |
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protected void defaultHandler(Throwable t) |
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{ |
121 | 0 | if (RequestContext.getEvent() != null) |
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{ |
123 | 0 | RequestContext.setExceptionPayload(new DefaultExceptionPayload(t)); |
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} |
125 | 0 | } |
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protected MuleMessage messageFromContextIfAvailable(MuleMessage message) |
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{ |
129 | 0 | if (null != RequestContext.getEvent()) |
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{ |
131 | 0 | return RequestContext.getEvent().getMessage(); |
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} |
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else |
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{ |
135 | 0 | return message; |
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} |
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} |
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} |