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1
54 package org.logicalcobwebs.cglib.proxy;
55
56 import java.lang.reflect.*;
57 import java.util.Arrays  ;
58 import java.util.List ;
59 import org.logicalcobwebs.cglib.core.CodeGenerationException;
60 import org.logicalcobwebs.cglib.core.ReflectUtils;
61 import org.logicalcobwebs.cglib.core.Signature;
62 import org.logicalcobwebs.cglib.reflect.*;
63
64
71 public class MethodProxy {
72 private Signature sig;
73 private String superName;
74 private FastClass f1;
75 private FastClass f2;
76 private int i1;
77 private int i2;
78
79
83 public static MethodProxy create(ClassLoader loader, Class c1, Class c2, String desc, String name1, String name2) {
84 final Signature sig1 = new Signature(name1, desc);
85 Signature sig2 = new Signature(name2, desc);
86 FastClass f1 = helper(loader, c1);
87 FastClass f2 = helper(loader, c2);
88 int i1 = f1.getIndex(sig1);
89 int i2 = f2.getIndex(sig2);
90
91 MethodProxy proxy;
92 if (i1 < 0) {
93 proxy = new MethodProxy() {
94 public Object invoke(Object obj, Object [] args) throws Throwable {
95 throw new IllegalArgumentException ("Protected method: " + sig1);
96 }
97 };
98 } else {
99 proxy = new MethodProxy();
100 }
101
102 proxy.f1 = f1;
103 proxy.f2 = f2;
104 proxy.i1 = i1;
105 proxy.i2 = i2;
106 proxy.sig = sig1;
107 proxy.superName = name2;
108 return proxy;
109 }
110
111 private static FastClass helper(ClassLoader loader, Class type) {
112 FastClass.Generator g = new FastClass.Generator();
113 g.setType(type);
114 g.setClassLoader(loader);
115 return g.create();
116 }
117
118 private MethodProxy() {
119 }
120
121
124 public Signature getSignature() {
125 return sig;
126 }
127
128
134 public String getSuperName() {
135 return superName;
136 }
137
138
145 public int getSuperIndex() {
146 return i2;
147 }
148
149
157 public static MethodProxy find(Class type, Signature sig) {
158 try {
159 Method m = type.getDeclaredMethod(MethodInterceptorGenerator.FIND_PROXY_NAME,
160 MethodInterceptorGenerator.FIND_PROXY_TYPES);
161 return (MethodProxy)m.invoke(null, new Object []{ sig });
162 } catch (NoSuchMethodException e) {
163 throw new IllegalArgumentException ("Class " + type + " does not use a MethodInterceptor");
164 } catch (IllegalAccessException e) {
165 throw new CodeGenerationException(e);
166 } catch (InvocationTargetException e) {
167 throw new CodeGenerationException(e);
168 }
169 }
170
171
181 public Object invoke(Object obj, Object [] args) throws Throwable {
182 try {
183 return f1.invoke(i1, obj, args);
184 } catch (InvocationTargetException e) {
185 throw e.getTargetException();
186 }
187 }
188
189
199 public Object invokeSuper(Object obj, Object [] args) throws Throwable {
200 try {
201 return f2.invoke(i2, obj, args);
202 } catch (InvocationTargetException e) {
203 throw e.getTargetException();
204 }
205 }
206 }
207 |
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