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package org.mule.samples.errorhandler; |
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import org.mule.MuleManager; |
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import org.mule.samples.errorhandler.handlers.DefaultHandler; |
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import org.mule.samples.errorhandler.handlers.FatalHandler; |
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import org.mule.umo.UMOException; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.Map; |
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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 ErrorManager |
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{ |
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31 | 0 | private static final Log logger = LogFactory.getLog(ErrorManager.class); |
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33 | 0 | private Map handlers = new HashMap(); |
34 | 0 | private ExceptionHandler defaultHandler = null; |
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public ErrorManager() |
42 | 0 | { |
43 | 0 | defaultHandler = new DefaultHandler(); |
44 | 0 | } |
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public void setHandlers(ExceptionHandler[] eh) |
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{ |
48 | 0 | for (int i = 0; i < eh.length; i++) |
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{ |
50 | 0 | addHandler(eh[i]); |
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} |
52 | 0 | } |
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public void addHandler(ExceptionHandler eh) |
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{ |
56 | 0 | for (Iterator i = eh.getRegisteredClasses(); i.hasNext();) |
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{ |
58 | 0 | handlers.put(i.next(), eh); |
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} |
60 | 0 | } |
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public ExceptionHandler getHandler(Class exceptionClass) |
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{ |
64 | 0 | Object obj = handlers.get(exceptionClass); |
65 | 0 | if (obj == null) |
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{ |
67 | 0 | obj = handlers.get(Throwable.class); |
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} |
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70 | 0 | return (ExceptionHandler)obj; |
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} |
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public void onException(ErrorMessage msg) throws UMOException |
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{ |
75 | 0 | Class eClass = null; |
76 | 0 | ExceptionHandler eh = null; |
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try |
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{ |
80 | 0 | eClass = msg.getException().toException().getClass(); |
81 | 0 | eh = getHandler(eClass); |
82 | 0 | eh.onException(msg); |
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} |
84 | 0 | catch (Exception e) |
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{ |
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87 | 0 | logger.error(LocaleMessage.handlerFailure(eh)); |
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89 | 0 | if (eh instanceof DefaultHandler) |
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{ |
91 | 0 | logger.error(LocaleMessage.defaultFatalHandling(FatalHandler.class)); |
92 | 0 | handleFatal(e); |
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} |
95 | 0 | else if (eh instanceof FatalHandler) |
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{ |
97 | 0 | logger.fatal(LocaleMessage.fatalHandling(e)); |
98 | 0 | ((MuleManager)MuleManager.getInstance()).dispose(); |
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} |
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else |
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{ |
102 | 0 | logger.error(LocaleMessage.defaultHandling(DefaultHandler.class, eh, e)); |
103 | 0 | handleDefault(msg, e); |
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} |
105 | 0 | } |
106 | 0 | } |
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private void handleDefault(ErrorMessage msg, Throwable t) |
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{ |
110 | 0 | ErrorMessage nestedMsg = null; |
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try |
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{ |
115 | 0 | nestedMsg = new ErrorMessage(t); |
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} |
117 | 0 | catch (Exception e) |
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{ |
119 | 0 | logger.fatal(LocaleMessage.defaultException(e), e); |
120 | 0 | handleFatal(e); |
121 | 0 | } |
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try |
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{ |
124 | 0 | defaultHandler.onException(nestedMsg); |
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} |
126 | 0 | catch (HandlerException e) |
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{ |
128 | 0 | logger.fatal(LocaleMessage.defaultHandlerException(e), e); |
129 | 0 | handleFatal(e); |
130 | 0 | } |
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132 | 0 | } |
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private void handleFatal(Throwable t) |
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{ |
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138 | 0 | logger.fatal(LocaleMessage.fatalException(t), t); |
139 | 0 | ((MuleManager)MuleManager.getInstance()).dispose(); |
140 | 0 | } |
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} |