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16 package com.jdon.aop.reflection;
17
18 import java.lang.reflect.InvocationTargetException  ;
19 import java.lang.reflect.Method ;
20 import java.rmi.Remote ;
21
22 import javax.ejb.EJBObject ;
23 import javax.rmi.PortableRemoteObject ;
24
25 import com.jdon.bussinessproxy.target.TargetServiceFactory;
26 import com.jdon.container.access.TargetMetaRequest;
27 import com.jdon.container.finder.ComponentKeys;
28 import com.jdon.container.visitor.ComponentVisitor;
29 import com.jdon.util.Debug;
30
31
36 public class MethodInvokerUtil {
37 private final static String module = MethodInvokerUtil.class.getName();
38
39
48 public Object execute(Method method, Object targetObj, Object [] p_args) throws Throwable {
49 try {
50 if ((method == null) || (targetObj == null))
51 Debug.logError("[JdonFramework] no method or target, please check your configure", module);
52 if (p_args == null) p_args = new Object [0];
53 Debug.logVerbose("[JdonFramework] method invoke: " + targetObj.getClass().getName() + " method=" + method.getName(), module);
54 Object result = method.invoke(targetObj, p_args);
55 Debug.logVerbose("[JdonFramework] method invoke successfully ", module);
56 return result;
57 } catch (IllegalArgumentException iex) {
58 String errorInfo = "Errors happened in your method:["+ targetObj.getClass().getName() + "." + method.getName() +"]";
59 Debug.logError(errorInfo, module);
60 errorInfo = "[JdonFramework] method invoke IllegalArgumentException: " + iex
61 + " method argument type :["+ method.getParameterTypes() +"], but method arguments value p_args type:"+ p_args.getClass().getName() ;
62 Debug.logError(errorInfo, module);
63 throw new Throwable (errorInfo, iex);
64 } catch (InvocationTargetException ex) {
65 String errorInfo = "Errors happened in your method:["+ targetObj.getClass().getName() + "." + method.getName() +"]";
66 Debug.logError(errorInfo, module);
67 throw new Throwable (errorInfo);
68 } catch (IllegalAccessException ex) {
69 String errorInfo = "Errors happened in your method:["+ targetObj.getClass().getName() + "." + method.getName() +"]";
70 Debug.logError(errorInfo, module);
71 Debug.logError("[JdonFramework] method invoke IllegalAccessException: " + ex, module);
72 throw new Throwable ("access method:" + method + " " + ex, ex);
73 } catch (Exception ex) {
74 String errorInfo = "Errors happened in your method:["+ targetObj.getClass().getName() + "." + method.getName() +"]";
75 Debug.logError(errorInfo, module);
76 Debug.logError("[JdonFramework] method invoke error: " + ex, module);
77 throw new Throwable (" method invoke error: " + ex);
78 }
79
80 }
81
82
91 public Object createTargetObject(TargetServiceFactory targetServiceFactory, TargetMetaRequest targetMetaRequest) {
92 Debug.logVerbose("[JdonFramework] now getTargetObject by visitor ", module);
93 Object targetObjRef = null;
94 try {
95 if (targetMetaRequest.getTargetMetaDef().isEJB()) { ComponentVisitor cm = targetMetaRequest.getComponentVisitor();
97 targetMetaRequest.setVisitableName(ComponentKeys.TARGETSERVICE_FACTORY);
98 Debug.logVerbose(ComponentKeys.TARGETSERVICE_FACTORY + " in action (cache)", module);
99 targetObjRef = cm.visit(targetMetaRequest);
100 } else {
101 Debug.logVerbose("[JdonFramework] not active targer service instance cache !!!!", module);
102 targetObjRef = targetServiceFactory.create(targetMetaRequest.getTargetMetaDef());
103 }
104 } catch (Exception e) {
105 Debug.logError("[JdonFramework]createTargetObject error: " + e, module);
106 }
107 return targetObjRef;
108 }
109
110
114 public Object [] narrowArgs(Object [] p_args) {
115 if (p_args == null)
116 return null;
117 int length = p_args.length;
118 Object [] result = new Object [length];
119 for (int i = 0; i < length; i++) {
120 if (p_args[i] instanceof Remote )
121 result[i] = PortableRemoteObject.narrow(p_args[i], EJBObject .class);
122 else
123 result[i] = p_args[i];
124 }
125 return result;
126 }
127
128 }
129 |
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