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32
33 package com.jeantessier.classreader;
34
35 import java.io.*;
36 import java.util.*;
37
38 import org.apache.log4j.*;
39
40 public abstract class Feature_info implements Deprecatable, Visitable {
41 public static final int ACC_PUBLIC = 0x0001;
42 public static final int ACC_PRIVATE = 0x0002;
43 public static final int ACC_PROTECTED = 0x0004;
44 public static final int ACC_STATIC = 0x0008;
45 public static final int ACC_FINAL = 0x0010;
46
47 private Classfile classfile;
48 private int accessFlag;
49 private int nameIndex;
50 private int descriptorIndex;
51 private Collection attributes = new LinkedList();
52
53 public Feature_info(Classfile classfile, DataInputStream in) throws IOException {
54 this.classfile = classfile;
55
56 accessFlag = in.readUnsignedShort();
57 Logger.getLogger(getClass()).debug(getFeatureType() + " access flag: " + accessFlag);
58
59 nameIndex = in.readUnsignedShort();
60 Logger.getLogger(getClass()).debug(getFeatureType() + " name: " + nameIndex + " (" + getName() + ")");
61
62 descriptorIndex = in.readUnsignedShort();
63 Logger.getLogger(getClass()).debug(getFeatureType() + " Descriptor: " + descriptorIndex + " (" + getDescriptor() + ")");
64
65 int attributeCount = in.readUnsignedShort();
66 Logger.getLogger(getClass()).debug("Reading " + attributeCount + " " + getFeatureType() + " attribute(s)");
67 for (int i=0; i<attributeCount; i++) {
68 Logger.getLogger(getClass()).debug(getFeatureType() + " attribute " + i + ":");
69 attributes.add(AttributeFactory.create(getClassfile(), this, in));
70 }
71 }
72
73 public Classfile getClassfile() {
74 return classfile;
75 }
76
77 public int getAccessFlag() {
78 return accessFlag;
79 }
80
81 public boolean isPublic() {
82 return (getAccessFlag() & ACC_PUBLIC) != 0;
83 }
84
85 public boolean isProtected() {
86 return (getAccessFlag() & ACC_PROTECTED) != 0;
87 }
88
89 public boolean isPrivate() {
90 return (getAccessFlag() & ACC_PRIVATE) != 0;
91 }
92
93 public boolean isPackage() {
94 return (getAccessFlag() & (ACC_PUBLIC | ACC_PROTECTED | ACC_PRIVATE)) == 0;
95 }
96
97 public boolean isStatic() {
98 return (getAccessFlag() & ACC_STATIC) != 0;
99 }
100
101 public boolean isFinal() {
102 return (getAccessFlag() & ACC_FINAL) != 0;
103 }
104
105 public int getNameIndex() {
106 return nameIndex;
107 }
108
109 public UTF8_info getRawName() {
110 return (UTF8_info) getClassfile().getConstantPool().get(nameIndex);
111 }
112
113 public String  getName() {
114 return getRawName().toString();
115 }
116
117 public String getFullName() {
118 return getClassfile().getClassName() + "." + getName();
119 }
120
121 public int getDescriptorIndex() {
122 return descriptorIndex;
123 }
124
125 public UTF8_info getRawDescriptor() {
126 return (UTF8_info) getClassfile().getConstantPool().get(descriptorIndex);
127 }
128
129 public String getDescriptor() {
130 return getRawDescriptor().toString();
131 }
132
133 public Collection getAttributes() {
134 return attributes;
135 }
136
137 public boolean isSynthetic() {
138 boolean result = false;
139
140 Iterator i = getAttributes().iterator();
141 while (!result && i.hasNext()) {
142 result = i.next() instanceof Synthetic_attribute;
143 }
144
145 return result;
146 }
147
148 public boolean isDeprecated() {
149 boolean result = false;
150
151 Iterator i = getAttributes().iterator();
152 while (!result && i.hasNext()) {
153 result = i.next() instanceof Deprecated_attribute;
154 }
155
156 return result;
157 }
158
159 public String toString() {
160 return getFullName();
161 }
162
163 public abstract String getFeatureType();
164 public abstract String getDeclaration();
165 public abstract String getSignature();
166
167 public String getFullSignature() {
168 return getClassfile().getClassName() + "." + getSignature();
169 }
170 }
171 |
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