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1
54 package org.logicalcobwebs.cglib.reflect;
55
56 import org.logicalcobwebs.cglib.core.*;
57 import java.lang.reflect.Constructor  ;
58 import java.lang.reflect.InvocationTargetException ;
59 import java.lang.reflect.Method ;
60 import org.logicalcobwebs.asm.ClassVisitor;
61 import org.logicalcobwebs.asm.Type;
62
63 abstract public class FastClass
64 {
65 private Class type;
66
67 protected FastClass(Class type) {
68 this.type = type;
69 }
70
71 public static FastClass create(Class type) {
72 Generator gen = new Generator();
73 gen.setType(type);
74 return gen.create();
75 }
76
77 public static class Generator extends AbstractClassGenerator
78 {
79 private static final Source SOURCE = new Source(FastClass.class.getName());
80 private Class type;
81
82 public Generator() {
83 super(SOURCE);
84 }
85
86 public void setType(Class type) {
87 this.type = type;
88 }
89
90 public FastClass create() {
91 setNamePrefix(type.getName());
92 return (FastClass)super.create(type.getName());
93 }
94
95 protected ClassLoader getDefaultClassLoader() {
96 return type.getClassLoader();
97 }
98
99 public void generateClass(ClassVisitor v) throws Exception {
100 new FastClassEmitter(v, getClassName(), type);
101 }
102
103 protected Object firstInstance(Class type) {
104 return ReflectUtils.newInstance(type,
105 new Class []{ Class .class },
106 new Object []{ this.type });
107 }
108
109 protected Object nextInstance(Object instance) {
110 return instance;
111 }
112 }
113
114 public Object invoke(String name, Class [] parameterTypes, Object obj, Object [] args) throws InvocationTargetException {
115 return invoke(getIndex(name, parameterTypes), obj, args);
116 }
117
118 public Object newInstance() throws InvocationTargetException {
119 return newInstance(getIndex(Constants.EMPTY_CLASS_ARRAY), null);
120 }
121
122 public Object newInstance(Class [] parameterTypes, Object [] args) throws InvocationTargetException {
123 return newInstance(getIndex(parameterTypes), args);
124 }
125
126 public FastMethod getMethod(Method method) {
127 return new FastMethod(this, method);
128 }
129
130 public FastConstructor getConstructor(Constructor constructor) {
131 return new FastConstructor(this, constructor);
132 }
133
134 public FastMethod getMethod(String name, Class [] parameterTypes) {
135 try {
136 return getMethod(type.getMethod(name, parameterTypes));
137 } catch (NoSuchMethodException e) {
138 throw new NoSuchMethodError (e.getMessage());
139 }
140 }
141
142 public FastConstructor getConstructor(Class [] parameterTypes) {
143 try {
144 return getConstructor(type.getConstructor(parameterTypes));
145 } catch (NoSuchMethodException e) {
146 throw new NoSuchMethodError (e.getMessage());
147 }
148 }
149
150 public String getName() {
151 return type.getName();
152 }
153
154 public Class getJavaClass() {
155 return type;
156 }
157
158 public String toString() {
159 return type.toString();
160 }
161
162 public int hashCode() {
163 return type.hashCode();
164 }
165
166 public boolean equals(Object o) {
167 if (o == null || !(o instanceof FastClass)) {
168 return false;
169 }
170 return type.equals(((FastClass)o).type);
171 }
172
173
183 abstract public int getIndex(String name, Class [] parameterTypes);
184
185
192 abstract public int getIndex(Class [] parameterTypes);
193
194
202 abstract public Object invoke(int index, Object obj, Object [] args) throws InvocationTargetException ;
203
204
211 abstract public Object newInstance(int index, Object [] args) throws InvocationTargetException ;
212
213 abstract public int getIndex(Signature sig);
214
215
218 abstract public int getMaxIndex();
219
220 protected static String getSignatureWithoutReturnType(String name, Class [] parameterTypes) {
221 StringBuffer sb = new StringBuffer ();
222 sb.append(name);
223 sb.append('(');
224 for (int i = 0; i < parameterTypes.length; i++) {
225 sb.append(Type.getDescriptor(parameterTypes[i]));
226 }
227 sb.append(')');
228 return sb.toString();
229 }
230 }
231 |
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