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1
52
53 package com.go.trove.classfile;
54
55 import java.io.*;
56
57
64 public class TestClassFileRead {
65
68 public static void main(String  [] args) throws Exception {
69 InputStream in = new FileInputStream(args[0]);
70 in = new BufferedInputStream(in);
71
72 ClassFileDataLoader loader = new ResourceClassFileDataLoader();
73
74 ClassFile cf = ClassFile.readFrom(in, loader, null);
75 in.close();
76
77 while (cf.getOuterClass() != null) {
78 cf = cf.getOuterClass();
79 }
80
81 dump(cf);
82 }
83
84 private static void dump(ClassFile cf) {
85 dump(cf, "");
86 }
87
88 private static void dump(ClassFile cf, String indent) {
89 println(cf, indent);
90 println("className: " + cf.getClassName(), indent);
91 println("superClassName: " + cf.getSuperClassName(), indent);
92 println("innerClass: " + cf.isInnerClass(), indent);
93 println("innerClassName: " + cf.getInnerClassName(), indent);
94 println("type: " + cf.getType(), indent);
95 println("accessFlags: " + cf.getAccessFlags(), indent);
96
97 String [] interfaces = cf.getInterfaces();
98 print("interfaces: ", indent);
99 for (int i=0; i<interfaces.length; i++) {
100 if (i > 0) {
101 System.out.print(", ");
102 }
103 System.out.print(interfaces[i]);
104 }
105 println();
106
107 FieldInfo[] fields = cf.getFields();
108 println("fields: ", indent);
109 for (int i=0; i<fields.length; i++) {
110 dump(fields[i], indent + " ");
111 }
112
113 MethodInfo[] methods = cf.getMethods();
114 println("methods: ", indent);
115 for (int i=0; i<methods.length; i++) {
116 dump(methods[i], indent + " ");
117 }
118
119 methods = cf.getConstructors();
120 println("constructors: ", indent);
121 for (int i=0; i<methods.length; i++) {
122 dump(methods[i], indent + " ");
123 }
124
125 MethodInfo init = cf.getInitializer();
126 println("initializer: ", indent);
127 if (init != null) {
128 dump(init, indent + " ");
129 }
130
131 ClassFile[] innerClasses = cf.getInnerClasses();
132 println("innerClasses: ", indent);
133 for (int i=0; i<innerClasses.length; i++) {
134 dump(innerClasses[i], indent + " ");
135 }
136
137 println("sourceFile: " + cf.getSourceFile(), indent);
138 println("synthetic: " + cf.isSynthetic(), indent);
139 println("deprecated: " + cf.isDeprecated(), indent);
140 println("attributes: ", indent);
141 dump(cf.getAttributes(), indent + " ");
142
143 println();
144 }
145
146 private static void dump(FieldInfo field, String indent) {
147 println(field, indent);
148 println("name: " + field.getName(), indent);
149 println("type: " + field.getType(), indent);
150 println("accessFlags: " + field.getAccessFlags(), indent);
151 println("constantValue: " + field.getConstantValue(), indent);
152 println("synthetic: " + field.isSynthetic(), indent);
153 println("deprecated: " + field.isDeprecated(), indent);
154 println("attributes: ", indent);
155 dump(field.getAttributes(), indent + " ");
156
157 println();
158 }
159
160 private static void dump(MethodInfo method, String indent) {
161 println(method, indent);
162 println("name: " + method.getName(), indent);
163 println("methodDescriptor: " + method.getMethodDescriptor(), indent);
164 println("accessFlags: " + method.getAccessFlags(), indent);
165
166 String [] exceptions = method.getExceptions();
167 print("exceptions: ", indent);
168 for (int i=0; i<exceptions.length; i++) {
169 if (i > 0) {
170 System.out.print(", ");
171 }
172 System.out.print(exceptions[i]);
173 }
174 println();
175
176 if (method.getCodeAttr() != null) {
177 println("code:", indent);
178
179 PrintWriter writer = new PrintWriter(System.out);
180
181 TypeDescriptor[] paramTypes =
182 method.getMethodDescriptor().getParameterTypes();
183 boolean isStatic = method.getAccessFlags().isStatic();
184
185 new CodeDisassembler(method).disassemble
186 (new CodeAssemblerPrinter(paramTypes, isStatic,
187 writer, indent + " ", null));
188
189 writer.flush();
190 }
191
192 println("synthetic: " + method.isSynthetic(), indent);
193 println("deprecated: " + method.isDeprecated(), indent);
194 println("attributes: ", indent);
195 dump(method.getAttributes(), indent + " ");
196
197 println();
198 }
199
200 private static void dump(Attribute[] attributes, String indent) {
201 if (attributes == null) {
202 return;
203 }
204 for (int i=0; i<attributes.length; i++) {
205 Attribute attribute = attributes[i];
206 println(attribute, indent);
207 Attribute[] subAttributes = attribute.getAttributes();
208 if (subAttributes != null && subAttributes.length > 0) {
209 println("attributes: ", indent);
210 dump(subAttributes, indent + " ");
211 }
212 }
213 }
214
215 private static void print(Object obj, String indent) {
216 System.out.print(indent);
217 System.out.print(obj);
218 }
219
220 private static void println(Object obj, String indent) {
221 print(obj, indent);
222 println();
223 }
224
225 private static void println() {
226 System.out.println();
227 }
228 }
229 |
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