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package org.mule.model.resolvers; |
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import org.mule.VoidResult; |
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import org.mule.api.MuleEventContext; |
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import org.mule.api.model.EntryPointResolver; |
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import org.mule.api.model.InvocationResult; |
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import org.mule.api.transformer.TransformerException; |
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import org.mule.transport.NullPayload; |
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import org.mule.util.ClassUtils; |
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import org.mule.util.StringMessageUtils; |
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import java.lang.reflect.InvocationTargetException; |
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import java.lang.reflect.Method; |
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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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35 | 0 | public abstract class AbstractEntryPointResolver implements EntryPointResolver |
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{ |
37 | 0 | private static final Log logger = LogFactory.getLog(AbstractEntryPointResolver.class); |
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|
39 | 0 | private boolean acceptVoidMethods = false; |
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41 | 0 | private boolean synchronizeCall = false; |
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44 | 0 | private final ConcurrentHashMap methodCache = new ConcurrentHashMap(4); |
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public boolean isAcceptVoidMethods() |
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{ |
48 | 0 | return acceptVoidMethods; |
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} |
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public void setAcceptVoidMethods(boolean acceptVoidMethods) |
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{ |
53 | 0 | this.acceptVoidMethods = acceptVoidMethods; |
54 | 0 | } |
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protected ConcurrentHashMap getMethodCache(Object component) |
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{ |
58 | 0 | Class<?> componentClass = component.getClass(); |
59 | 0 | ConcurrentHashMap cache = (ConcurrentHashMap) methodCache.get(componentClass); |
60 | 0 | if (cache == null) |
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{ |
62 | 0 | methodCache.putIfAbsent(componentClass, new ConcurrentHashMap(4)); |
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} |
64 | 0 | return (ConcurrentHashMap) methodCache.get(componentClass); |
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} |
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protected Method getMethodByName(Object component, String methodName, MuleEventContext context) |
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{ |
69 | 0 | return (Method) getMethodCache(component).get(methodName); |
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} |
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protected Method addMethodByName(Object component, Method method, MuleEventContext context) |
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{ |
74 | 0 | Method previousMethod = (Method) getMethodCache(component).putIfAbsent(method.getName(), method); |
75 | 0 | return (previousMethod != null ? previousMethod : method); |
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} |
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protected Method addMethodByArguments(Object component, Method method, Object[] payload) |
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{ |
80 | 0 | Method previousMethod = (Method) getMethodCache(component).putIfAbsent(getCacheKeyForPayload(component, payload), method); |
81 | 0 | return (previousMethod != null ? previousMethod : method); |
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} |
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protected Method getMethodByArguments(Object component, Object[] payload) |
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{ |
87 | 0 | Method method = (Method) getMethodCache(component).get(getCacheKeyForPayload(component, payload)); |
88 | 0 | return method; |
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} |
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protected String getCacheKeyForPayload(Object component, Object[] payload) |
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{ |
93 | 0 | StringBuffer key = new StringBuffer(48); |
94 | 0 | for (int i = 0; i < payload.length; i++) |
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{ |
96 | 0 | Object o = payload[i]; |
97 | 0 | if (o != null) |
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{ |
99 | 0 | key.append(o.getClass().getName()); |
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} |
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else |
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{ |
103 | 0 | key.append("null"); |
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} |
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} |
106 | 0 | key.append(".").append(ClassUtils.getClassName(component.getClass())); |
107 | 0 | return key.toString(); |
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} |
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protected Object[] getPayloadFromMessage(MuleEventContext context) throws TransformerException |
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{ |
113 | 0 | Object temp = context.getMessage().getPayload(); |
114 | 0 | if (temp instanceof Object[]) |
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{ |
116 | 0 | return (Object[]) temp; |
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} |
118 | 0 | else if (temp instanceof NullPayload) |
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{ |
120 | 0 | return ClassUtils.NO_ARGS; |
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} |
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else |
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{ |
124 | 0 | return new Object[]{temp}; |
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} |
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} |
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protected InvocationResult invokeMethod(Object component, Method method, Object[] arguments) |
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throws InvocationTargetException, IllegalAccessException |
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{ |
131 | 0 | String methodCall = null; |
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|
133 | 0 | if (logger.isDebugEnabled()) |
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{ |
135 | 0 | methodCall = component.getClass().getName() + "." + method.getName() + "(" |
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+ StringMessageUtils.toString(ClassUtils.getClassTypes(arguments)) + ")"; |
137 | 0 | logger.debug("Invoking " + methodCall); |
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} |
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Object result; |
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|
142 | 0 | if(isSynchronizeCall()) |
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{ |
144 | 0 | synchronized (component) |
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{ |
146 | 0 | result = method.invoke(component, arguments); |
147 | 0 | } |
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} |
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else |
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{ |
151 | 0 | result = method.invoke(component, arguments); |
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} |
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|
154 | 0 | if (method.getReturnType().equals(Void.TYPE)) |
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{ |
156 | 0 | result = VoidResult.getInstance(); |
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} |
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|
159 | 0 | if (logger.isDebugEnabled()) |
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{ |
161 | 0 | logger.debug("Result of call " + methodCall + " is " + (result == null ? "null" : "not null")); |
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} |
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|
164 | 0 | return new InvocationResult(this, result, method); |
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} |
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public boolean isSynchronizeCall() |
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{ |
169 | 0 | return synchronizeCall; |
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} |
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public void setSynchronizeCall(boolean synchronizeCall) |
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{ |
174 | 0 | this.synchronizeCall = synchronizeCall; |
175 | 0 | } |
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@Override |
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public String toString() |
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{ |
180 | 0 | final StringBuffer sb = new StringBuffer(); |
181 | 0 | sb.append("AbstractEntryPointResolver"); |
182 | 0 | sb.append(", acceptVoidMethods=").append(acceptVoidMethods); |
183 | 0 | sb.append('}'); |
184 | 0 | return sb.toString(); |
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} |
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} |