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32
33 package com.jeantessier.classreader;
34
35 import java.util.*;
36
37 public class ClassDependencyCollector extends CollectorBase {
38 private Class_info thisClass;
39 private boolean top = true;
40
41 public void visitClassfile(Classfile classfile) {
42 thisClass = classfile.getRawClass();
43
44 classfile.getConstantPool().accept(this);
45
46 classfile.getRawSuperclass().accept(this);
47
48 Iterator i;
49
50 i = classfile.getAllInterfaces().iterator();
51 while (i.hasNext()) {
52 ((Visitable) i.next()).accept(this);
53 }
54
55 i = classfile.getAllFields().iterator();
56 while (i.hasNext()) {
57 ((Visitable) i.next()).accept(this);
58 }
59
60 i = classfile.getAllMethods().iterator();
61 while (i.hasNext()) {
62 ((Visitable) i.next()).accept(this);
63 }
64 }
65
66 public void visitClass_info(Class_info entry) {
67 String  classname = entry.getName();
68
69 if (entry != thisClass) {
70 if (classname.startsWith("[") ) {
71 top = false;
72 entry.getRawName().accept(this);
73 top = true;
74 } else {
75 add(classname);
76 }
77 }
78 }
79
80 public void visitFieldRef_info(FieldRef_info entry) {
81 if (top) {
82 if (entry.getRawClass() == thisClass) {
83 top = false;
84 entry.getRawNameAndType().accept(this);
85 top = true;
86 }
87 } else {
88 entry.getRawNameAndType().accept(this);
89 }
90 }
91
92 public void visitMethodRef_info(MethodRef_info entry) {
93 if (top) {
94 if (entry.getRawClass() == thisClass) {
95 top = false;
96 entry.getRawNameAndType().accept(this);
97 top = true;
98 }
99 } else {
100 entry.getRawNameAndType().accept(this);
101 }
102 }
103
104 public void visitInterfaceMethodRef_info(InterfaceMethodRef_info entry) {
105 if (top) {
106 if (entry.getRawClass() == thisClass) {
107 top = false;
108 entry.getRawNameAndType().accept(this);
109 top = true;
110 }
111 } else {
112 entry.getRawNameAndType().accept(this);
113 }
114 }
115
116 public void visitString_info(String_info entry) {
117 if (!top) {
118 entry.getRawValue().accept(this);
119 }
120 }
121
122 public void visitNameAndType_info(NameAndType_info entry) {
123 if (!top) {
124 entry.getRawType().accept(this);
125 }
126 }
127
128 public void visitUTF8_info(UTF8_info entry) {
129 if (!top) {
130 processSignature(entry.getValue());
131 }
132 }
133
134 public void visitField_info(Field_info entry) {
135 processSignature(entry.getDescriptor());
136
137 super.visitField_info(entry);
138 }
139
140 public void visitMethod_info(Method_info entry) {
141 processSignature(entry.getDescriptor());
142
143 super.visitMethod_info(entry);
144 }
145
146 public void visitCode_attribute(Code_attribute attribute) {
147 Iterator i = attribute.getAttributes().iterator();
148 while (i.hasNext()) {
149 ((Visitable) i.next()).accept(this);
150 }
151 }
152
153 public void visitExceptions_attribute(Exceptions_attribute attribute) {
154 Iterator i = attribute.getExceptions().iterator();
155 while (i.hasNext()) {
156 ((Visitable) i.next()).accept(this);
157 }
158 }
159
160 public void visitInnerClasses_attribute(InnerClasses_attribute attribute) {
161 Iterator i = attribute.getClasses().iterator();
162 while (i.hasNext()) {
163 ((Visitable) i.next()).accept(this);
164 }
165 }
166
167 public void visitLineNumberTable_attribute(LineNumberTable_attribute attribute) {
168 Iterator i = attribute.getLineNumbers().iterator();
169 while (i.hasNext()) {
170 ((Visitable) i.next()).accept(this);
171 }
172 }
173
174 public void visitLocalVariableTable_attribute(LocalVariableTable_attribute attribute) {
175 Iterator i = attribute.getLocalVariables().iterator();
176 while (i.hasNext()) {
177 ((Visitable) i.next()).accept(this);
178 }
179 }
180
181 public void visitLocalVariable(LocalVariable helper) {
182 processSignature(helper.getDescriptor());
183 }
184
185 private void processSignature(String str) {
186 int currentPos = 0;
187 int startPos;
188 int endPos;
189
190 while ((startPos = str.indexOf('L', currentPos)) != -1) {
191 if ((endPos = str.indexOf(';', startPos)) != -1) {
192 String candidate = str.substring(startPos + 1, endPos);
193 if (!thisClass.getName().equals(candidate)) {
194 add(SignatureHelper.path2ClassName(candidate));
195 }
196 currentPos = endPos + 1;
197 } else {
198 currentPos = startPos + 1;
199 }
200 }
201 }
202 }
203 |
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