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package org.mule.routing.nested; |
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import org.mule.DefaultMuleMessage; |
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import org.mule.RequestContext; |
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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.routing.NestedRouter; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.util.StringMessageUtils; |
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import java.lang.reflect.InvocationHandler; |
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import java.lang.reflect.Method; |
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import java.util.Map; |
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import edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap; |
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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 NestedInvocationHandler implements InvocationHandler |
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{ |
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public static final String DEFAULT_METHOD_NAME_TOKEN = "default"; |
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|
34 | 0 | protected static Log logger = LogFactory.getLog(NestedInvocationHandler.class); |
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|
36 | 0 | protected Map routers = new ConcurrentHashMap(); |
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public NestedInvocationHandler(NestedRouter router) |
39 | 0 | { |
40 | 0 | addRouterForInterface(router); |
41 | 0 | } |
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public void addRouterForInterface(NestedRouter router) |
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{ |
45 | 0 | if (router.getMethod() == null) |
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{ |
47 | 0 | if (routers.size() == 0) |
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{ |
49 | 0 | routers.put(DEFAULT_METHOD_NAME_TOKEN, router); |
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} |
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else |
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{ |
53 | 0 | throw new IllegalArgumentException(CoreMessages.mustSetMethodNamesOnBinding().getMessage()); |
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} |
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} |
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else |
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{ |
58 | 0 | routers.put(router.getMethod(), router); |
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} |
60 | 0 | } |
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|
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public Object invoke(Object proxy, Method method, Object[] args) throws Throwable |
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{ |
64 | 0 | if (method.getName().equals("toString")) |
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{ |
66 | 0 | return toString(); |
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} |
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|
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MuleMessage message; |
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|
71 | 0 | if (args.length == 1) |
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{ |
73 | 0 | message = new DefaultMuleMessage(args[0]); |
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} |
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else |
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{ |
77 | 0 | message = new DefaultMuleMessage(args); |
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} |
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|
81 | 0 | NestedRouter router = (NestedRouter) routers.get(method.getName()); |
82 | 0 | if (router == null) |
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{ |
84 | 0 | router = (NestedRouter) routers.get(DEFAULT_METHOD_NAME_TOKEN); |
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} |
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|
87 | 0 | if (router == null) |
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{ |
89 | 0 | throw new IllegalArgumentException(CoreMessages.cannotFindBindingForMethod(method.getName()).toString()); |
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} |
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|
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MuleMessage reply; |
93 | 0 | MuleEvent currentEvent = RequestContext.getEvent(); |
94 | 0 | reply = router.route(message, currentEvent.getSession(), router.getEndpoint().isSynchronous()); |
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|
96 | 0 | if (reply != null) |
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{ |
98 | 0 | if (reply.getExceptionPayload() != null) |
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{ |
100 | 0 | throw reply.getExceptionPayload().getException(); |
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} |
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else |
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{ |
104 | 0 | return reply.getPayload(); |
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} |
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} |
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else |
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{ |
109 | 0 | return null; |
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} |
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} |
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public String toString() |
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{ |
115 | 0 | final StringBuffer sb = new StringBuffer(); |
116 | 0 | sb.append("NestedInvocation"); |
117 | 0 | sb.append("{routers='").append(StringMessageUtils.toString(routers)); |
118 | 0 | sb.append('}'); |
119 | 0 | return sb.toString(); |
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} |
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} |