private ClassObject parseBytecode(File file) {
final ClassObject co = new ClassObject();
try {
FileInputStream fin = new FileInputStream(file);
ClassReader cr = new ClassReader(new DataInputStream(fin));
ClassNode cn = new ClassNode();
cr.accept(cn, ClassReader.SKIP_DEBUG);
String name = cn.name;
co.setName(name.replaceAll("/", "."));
if ((cn.access & Opcodes.ACC_INTERFACE) != 0) co.setInterface(true);
else if ((cn.access & Opcodes.ACC_ABSTRACT) != 0) co.setAbstract(true);
if ((cn.access & Opcodes.ACC_PUBLIC) != 0) co.setAccess(Access.PUBLIC);
else if ((cn.access & Opcodes.ACC_PROTECTED) != 0) co.setAccess(Access.PROTECTED);
else if ((cn.access & Opcodes.ACC_PRIVATE) != 0) co.setAccess(Access.PRIVATE);
if ((cn.access & Opcodes.ACC_STATIC) != 0) co.setStatic(true);
String superClass = cn.superName;
co.setSuperclass(superClass.replaceAll("/", "."));
List interfaces = cn.interfaces;
for (Object anInterface : interfaces) {
String interfaceString = (String) anInterface;
co.addInterface(interfaceString.replaceAll("/", "."));
}
List fields = cn.fields;
for (Object field : fields) {
FieldNode fieldNode = (FieldNode) field;
Type fieldType = Type.getType(fieldNode.desc);
TypeObject typeObject = new TypeObject(fieldType.getClassName());
if (fieldNode.signature != null) {
TraceSignatureVisitor v = new TraceSignatureVisitor(ClassReader.SKIP_DEBUG);
SignatureReader r = new SignatureReader(fieldNode.signature);
r.accept(v);
String declaration = v.getDeclaration();
if (declaration.contains("<") && declaration.contains(">"))
typeObject.setGeneric(
declaration.substring(declaration.indexOf("<") + 1, declaration.lastIndexOf(">")));
}
FieldObject fo = new FieldObject(typeObject, fieldNode.name);
if ((fieldNode.access & Opcodes.ACC_PUBLIC) != 0) fo.setAccess(Access.PUBLIC);
else if ((fieldNode.access & Opcodes.ACC_PROTECTED) != 0) fo.setAccess(Access.PROTECTED);
else if ((fieldNode.access & Opcodes.ACC_PRIVATE) != 0) fo.setAccess(Access.PRIVATE);
if ((fieldNode.access & Opcodes.ACC_STATIC) != 0) fo.setStatic(true);
co.addField(fo);
}
List methods = cn.methods;
for (Object method : methods) {
MethodNode methodNode = (MethodNode) method;
final ConstructorObject constructorObject = new ConstructorObject();
if ((methodNode.access & Opcodes.ACC_PUBLIC) != 0)
constructorObject.setAccess(Access.PUBLIC);
else if ((methodNode.access & Opcodes.ACC_PROTECTED) != 0)
constructorObject.setAccess(Access.PROTECTED);
else if ((methodNode.access & Opcodes.ACC_PRIVATE) != 0)
constructorObject.setAccess(Access.PRIVATE);
if (methodNode.signature != null) {
TraceSignatureVisitor v = new TraceSignatureVisitor(ClassReader.SKIP_DEBUG);
SignatureReader r = new SignatureReader(methodNode.signature);
r.accept(v);
String declaration = v.getDeclaration();
String temp = declaration;
if (temp.startsWith("(")) temp = temp.substring(1, temp.length());
if (temp.endsWith("")) temp = temp.substring(0, temp.length() - 1);
if (!temp.equals("")) {
ParameterAnalyzer analyzer = new ParameterAnalyzer(temp);
for (String token : analyzer.getParameters()) {
if (token.contains("<") && token.contains(">")) {
TypeObject typeObject = new TypeObject(token.substring(0, token.indexOf("<")));
typeObject.setGeneric(
token.substring(token.indexOf("<") + 1, token.lastIndexOf(">")));
constructorObject.addParameter(typeObject);
} else {
constructorObject.addParameter(new TypeObject(token));
}
}
}
} else {
Type[] argumentTypes = Type.getArgumentTypes(methodNode.desc);
for (Type argumentType : argumentTypes)
constructorObject.addParameter(new TypeObject(argumentType.getClassName()));
}
if (methodNode.instructions.size() > 0) {
Map<String, Integer> labelIndexMap = new HashMap<String, Integer>();
List<LoopObject> activeLoops = new ArrayList<LoopObject>();
Iterator insnIt = methodNode.instructions.iterator();
int index = 0;
while (insnIt.hasNext()) {
AbstractInsnNode ainsn = (AbstractInsnNode) insnIt.next();
if (ainsn instanceof LabelNode) {
LabelNode labelNode = (LabelNode) ainsn;
Label label = labelNode.getLabel();
LoopObject loop = new LoopObject(label.toString());
activeLoops.add(loop);
labelIndexMap.put(label.toString(), index);
}
if (ainsn instanceof JumpInsnNode) {
JumpInsnNode jumpNode = (JumpInsnNode) ainsn;
Label label = jumpNode.label.getLabel();
if (labelIndexMap.containsKey(label.toString())) {
LoopObject matchingLoop = null;
for (LoopObject loop : activeLoops) {
if (loop.getLabel().equals(label.toString())) {
matchingLoop = loop;
break;
}
}
if (matchingLoop != null) {
constructorObject.addLoop(matchingLoop);
activeLoops.remove(matchingLoop);
}
}
}
if (ainsn instanceof FieldInsnNode) {
FieldInsnNode fieldInsnNode = (FieldInsnNode) ainsn;
Type fieldType = Type.getType(fieldInsnNode.desc);
FieldInstructionObject fieldObject =
new FieldInstructionObject(
fieldInsnNode.owner.replaceAll("/", "."),
fieldType.getClassName(),
fieldInsnNode.name);
constructorObject.addFieldInstruction(fieldObject);
for (LoopObject loop : activeLoops) {
loop.addFieldInstruction(fieldObject);
}
}
if ((ainsn.getOpcode() == Opcodes.INVOKEVIRTUAL)
|| (ainsn.getOpcode() == Opcodes.INVOKESTATIC)
|| (ainsn.getOpcode() == Opcodes.INVOKESPECIAL)
|| (ainsn.getOpcode() == Opcodes.INVOKEINTERFACE)) {
MethodInsnNode minsn = (MethodInsnNode) ainsn;
MethodInvocationObject mio =
new MethodInvocationObject(
minsn.owner.replaceAll("/", "."),
minsn.name,
Type.getReturnType(minsn.desc).getClassName());
Type[] argTypes = Type.getArgumentTypes(minsn.desc);
for (Type argType : argTypes) mio.addParameter(argType.getClassName());
constructorObject.addMethodInvocation(mio);
for (LoopObject loop : activeLoops) {
loop.addMethodInvocation(mio);
}
}
if ((ainsn.getOpcode() == Opcodes.NEW) || (ainsn.getOpcode() == Opcodes.ANEWARRAY)) {
TypeInsnNode tinsn = (TypeInsnNode) ainsn;
constructorObject.addObjectInstantiation(tinsn.desc.replaceAll("/", "."));
}
index++;
}
}
if (methodNode.name.equals("<init>")) {
constructorObject.setName(co.getName());
co.addConstructor(constructorObject);
} else {
Type returnType = Type.getReturnType(methodNode.desc);
constructorObject.setName(methodNode.name);
MethodObject methodObject = new MethodObject(constructorObject);
TypeObject typeObject = new TypeObject(returnType.getClassName());
if (methodNode.signature != null) {
TraceSignatureVisitor v = new TraceSignatureVisitor(ClassReader.SKIP_DEBUG);
SignatureReader r = new SignatureReader(methodNode.signature);
r.accept(v);
String genericReturnType = v.getReturnType();
if (genericReturnType.contains("<") && genericReturnType.contains(">"))
typeObject.setGeneric(
genericReturnType.substring(
genericReturnType.indexOf("<") + 1, genericReturnType.lastIndexOf(">")));
}
methodObject.setReturnType(typeObject);
methodObject.setClassName(co.getName());
if ((methodNode.access & Opcodes.ACC_ABSTRACT) != 0) methodObject.setAbstract(true);
if ((methodNode.access & Opcodes.ACC_STATIC) != 0) methodObject.setStatic(true);
co.addMethod(methodObject);
}
}
fin.close();
} catch (FileNotFoundException fnfe) {
fnfe.printStackTrace();
} catch (IOException ioe) {
ioe.printStackTrace();
}
return co;
}
