/**************************************************************************************
* Copyright (c) The AspectWerkz Team. All rights reserved. *
* http://aspectwerkz.codehaus.org *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the BSD style license *
* a copy of which has been included with this distribution in the license.txt file. *
**************************************************************************************/
package org.codehaus.aspectwerkz.transform;
import java.util.Map;
import java.util.HashMap;
import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Collections;
import org.apache.bcel.generic.InstructionFactory;
import org.apache.bcel.generic.ConstantPoolGen;
import org.apache.bcel.generic.ClassGen;
import org.apache.bcel.generic.Type;
import org.apache.bcel.generic.InstructionList;
import org.apache.bcel.generic.MethodGen;
import org.apache.bcel.generic.BasicType;
import org.apache.bcel.generic.PUSH;
import org.apache.bcel.generic.InstructionConstants;
import org.apache.bcel.generic.ObjectType;
import org.apache.bcel.generic.ArrayType;
import org.apache.bcel.generic.FieldGen;
import org.apache.bcel.generic.InstructionHandle;
import org.apache.bcel.generic.BranchInstruction;
import org.apache.bcel.Constants;
import org.apache.bcel.classfile.Method;
import org.apache.bcel.classfile.Field;
import org.codehaus.aspectwerkz.metadata.MethodMetaData;
import org.codehaus.aspectwerkz.metadata.BcelMetaDataMaker;
import org.codehaus.aspectwerkz.metadata.ClassMetaData;
import org.codehaus.aspectwerkz.definition.AspectWerkzDefinition;
/**
* Transforms static methods to become "aspect-aware".
*
* @author <a href="mailto:jboner@codehaus.org">Jonas Bon�r</a>
*/
public class AdviseStaticMethodTransformer implements AspectWerkzCodeTransformerComponent {
///CLOVER:OFF
/**
* The definition.
*/
private final AspectWerkzDefinition m_definition;
/**
* Retrieves the weave model.
*/
public AdviseStaticMethodTransformer() {
super();
m_definition = AspectWerkzDefinition.getDefinitionForTransformation();
}
/**
* Makes the static method transformations.
*
* @todo refactor so that we don't have to loop over all the methods twice (and create a method meta-data object twice)
*
* @param context the transformation context
* @param klass the class set.
*/
public void transformCode(final Context context, final Klass klass) {
final ClassGen cg = klass.getClassGen();
ClassMetaData classMetaData = BcelMetaDataMaker.
createClassMetaData(context.getJavaClass(cg));
if (classFilter(classMetaData, cg)) {
return;
}
final InstructionFactory factory = new InstructionFactory(cg);
final ConstantPoolGen cpg = cg.getConstantPool();
final Method[] methods = cg.getMethods();
// get the index for the <clinit> method (if there is one)
boolean noClinitMethod = true;
int indexClinit = -1;
for (int i = 0; i < methods.length; i++) {
if (methods[i].getName().equals("<clinit>")) {
indexClinit = i;
noClinitMethod = false;
break;
}
}
// build and sort the method lookup list
final List methodLookupList = new ArrayList();
for (int i = 0; i < methods.length; i++) {
MethodMetaData methodMetaData = BcelMetaDataMaker.createMethodMetaData(methods[i]);
if (methodFilter(classMetaData, methodMetaData, methods[i]) == null) {
continue;
}
methodLookupList.add(methods[i]);
}
Collections.sort(methodLookupList, BCELMethodComparator.getInstance());
final Map methodSequences = new HashMap();
final List newMethods = new ArrayList();
Method clInitMethod = null;
for (int i = 0; i < methods.length; i++) {
MethodMetaData methodMetaData = BcelMetaDataMaker.createMethodMetaData(methods[i]);
String uuid = methodFilter(classMetaData, methodMetaData, methods[i]);
if (!methods[i].isStatic() || uuid == null) {
continue;
}
final MethodGen mg = new MethodGen(methods[i], cg.getClassName(), cpg);
// take care of identification of overloaded methods by
// inserting a sequence number
if (methodSequences.containsKey(methods[i].getName())) {
int sequence = ((Integer)methodSequences.get(methods[i].getName())).intValue();
methodSequences.remove(methods[i].getName());
sequence++;
methodSequences.put(methods[i].getName(), new Integer(sequence));
}
else {
methodSequences.put(methods[i].getName(), new Integer(1));
}
final int methodLookupId = methodLookupList.indexOf(methods[i]);
final int methodSequence =
((Integer)methodSequences.get(methods[i].getName())).intValue();
addStaticJoinPointField(cpg, cg, mg, methodSequence);
// get the join point controller
final String controllerClassName =
m_definition.getJoinPointController(classMetaData, methodMetaData);
if (noClinitMethod) {
// no <clinit> method exists
if (clInitMethod == null) {
clInitMethod = createClInitMethodWithStaticJoinPointField(
cpg, cg,
methods[i],
factory,
methodSequence
);
}
else {
clInitMethod = createStaticJoinPointField(
cpg, cg, clInitMethod,
methods[i],
factory,
methodSequence
);
}
}
else {
// we have a <clinit> method
methods[indexClinit] = createStaticJoinPointField(
cpg, cg, methods[indexClinit],
methods[i],
factory,
methodSequence
);
}
// create a proxy method for the original method
newMethods.add(createProxyMethod(
cpg, cg, mg,
factory,
methodLookupId,
methodSequence,
methods[i].getAccessFlags(),
uuid,
controllerClassName
));
// add a prefix to the original method
methods[i] = addPrefixToMethod(mg, methods[i], methodSequence);
mg.setMaxLocals();
mg.setMaxStack();
}
// if we have transformed methods, create the static class field
if (noClinitMethod && clInitMethod != null) {
addStaticClassField(cpg, cg);
clInitMethod = createStaticClassField(cpg, cg, clInitMethod, factory);
newMethods.add(clInitMethod);
}
else if (newMethods.size() != 0) {
addStaticClassField(cpg, cg);
methods[indexClinit] = createStaticClassField(cpg, cg, methods[indexClinit], factory);
}
// update the old methods
cg.setMethods(methods);
// add the new methods
for (Iterator it = newMethods.iterator(); it.hasNext();) {
Method method = (Method)it.next();
cg.addMethod(method);
}
}
/**
* Creates a static class field.
*
* @param cp the ConstantPoolGen
* @param cg the ClassGen
*/
private void addStaticClassField(final ConstantPoolGen cp, final ClassGen cg) {
final Field[] fields = cg.getFields();
for (int i = 0; i < fields.length; i++) {
if (fields[i].getName().equals(TransformationUtil.STATIC_CLASS_FIELD)) {
return;
}
}
final FieldGen field = new FieldGen(
Constants.ACC_PRIVATE | Constants.ACC_FINAL | Constants.ACC_STATIC,
new ObjectType("java.lang.Class"),
TransformationUtil.STATIC_CLASS_FIELD,
cp
);
cg.addField(field.getField());
}
/**
* Creates a static join point field.
*
* @param cp the ConstantPoolGen
* @param cg the ClassGen
* @param mg the MethodGen
* @param methodSequence the methods sequence number
*/
private void addStaticJoinPointField(final ConstantPoolGen cp,
final ClassGen cg,
final MethodGen mg,
final int methodSequence) {
final StringBuffer joinPoint = getJoinPointName(mg.getMethod(), methodSequence);
if (cg.containsField(joinPoint.toString()) != null) {
return;
}
final FieldGen field = new FieldGen(
Constants.ACC_PRIVATE | Constants.ACC_FINAL | Constants.ACC_STATIC,
new ObjectType(TransformationUtil.THREAD_LOCAL_CLASS),
joinPoint.toString(),
cp
);
cg.addField(field.getField());
}
/**
* Creates a new <clinit> method and creates a join point field.
*
* @param cp the ConstantPoolGen
* @param cg the ClassGen
* @param method the current method
* @param factory the objectfactory
* @param methodSequence the methods sequence number
* @return the new method
*/
private Method createClInitMethodWithStaticJoinPointField(
final ConstantPoolGen cp,
final ClassGen cg,
final Method method,
final InstructionFactory factory,
final int methodSequence) {
final String className = cg.getClassName();
final StringBuffer joinPoint = getJoinPointName(method, methodSequence);
final InstructionList il = new InstructionList();
final MethodGen clInit = new MethodGen(
Constants.ACC_STATIC,
Type.VOID,
Type.NO_ARGS,
new String[]{},
"<clinit>",
className,
il, cp
);
il.append(factory.createNew(TransformationUtil.THREAD_LOCAL_CLASS));
il.append(InstructionConstants.DUP);
il.append(factory.createInvoke(
TransformationUtil.THREAD_LOCAL_CLASS,
"<init>",
Type.VOID,
new Type[]{},
Constants.INVOKESPECIAL
));
il.append(factory.createFieldAccess(
cg.getClassName(),
joinPoint.toString(),
new ObjectType(TransformationUtil.THREAD_LOCAL_CLASS),
Constants.PUTSTATIC
));
il.append(factory.createReturn(Type.VOID));
clInit.setMaxLocals();
clInit.setMaxStack();
return clInit.getMethod();
}
/**
* Creates a new static class field.
*
* @param cp the ConstantPoolGen
* @param cg the ClassGen
* @param clInit the constructor for the class
* @param factory the objectfactory
* @return the modified clinit method
*/
private Method createStaticClassField(final ConstantPoolGen cp,
final ClassGen cg,
final Method clInit,
final InstructionFactory factory) {
final String className = cg.getClassName();
final MethodGen mg = new MethodGen(clInit, cg.getClassName(), cp);
final InstructionList il = mg.getInstructionList();
final InstructionHandle ih = il.getStart();
// invoke Class.forName(..)
il.insert(ih, new PUSH(cp, cg.getClassName()));
il.insert(ih, factory.createInvoke(
"java.lang.Class",
"forName",
new ObjectType("java.lang.Class"),
new Type[]{Type.STRING},
Constants.INVOKESTATIC
));
// set the result to the static class field
il.insert(ih, factory.createFieldAccess(
className,
TransformationUtil.STATIC_CLASS_FIELD,
new ObjectType("java.lang.Class"),
Constants.PUTSTATIC
));
mg.setMaxStack();
mg.setMaxLocals();
return mg.getMethod();
}
/**
* Creates a new static join point field.
*
* @param cp the ConstantPoolGen
* @param cg the ClassGen
* @param clInit the constructor for the class
* @param method the current method
* @param factory the objectfactory
* @param methodSequence the methods sequence number
* @return the modified clinit method
*/
private Method createStaticJoinPointField(final ConstantPoolGen cp,
final ClassGen cg,
final Method clInit,
final Method method,
final InstructionFactory factory,
final int methodSequence) {
final StringBuffer joinPoint = getJoinPointName(method, methodSequence);
final MethodGen mg = new MethodGen(clInit, cg.getClassName(), cp);
final InstructionList il = mg.getInstructionList();
final InstructionHandle ih = il.getStart();
il.insert(ih, factory.createNew(TransformationUtil.THREAD_LOCAL_CLASS));
il.insert(ih, InstructionConstants.DUP);
il.insert(ih, factory.createInvoke(
TransformationUtil.THREAD_LOCAL_CLASS,
"<init>",
Type.VOID,
new Type[]{},
Constants.INVOKESPECIAL
));
il.insert(ih, factory.createFieldAccess(
cg.getClassName(),
joinPoint.toString(),
new ObjectType(TransformationUtil.THREAD_LOCAL_CLASS),
Constants.PUTSTATIC
));
mg.setMaxStack();
mg.setMaxLocals();
return mg.getMethod();
}
/**
* Adds a prefix to the original method.
* To make it callable only from within the framework itself.
*
* @param mg the MethodGen
* @param method the current method
* @param methodSequence the methods sequence number
* @return the modified method
*/
private Method addPrefixToMethod(final MethodGen mg,
final Method method,
final int methodSequence) {
// change the method access flags (should always be set to protected)
int accessFlags = mg.getAccessFlags();
if ((accessFlags & Constants.ACC_PROTECTED) == 0) {
// set the protected flag
accessFlags |= Constants.ACC_PROTECTED;
}
if ((accessFlags & Constants.ACC_PRIVATE) != 0) {
// clear the private flag
accessFlags &= ~Constants.ACC_PRIVATE;
}
if ((accessFlags & Constants.ACC_PUBLIC) != 0) {
// clear the public flag
accessFlags &= ~Constants.ACC_PUBLIC;
}
mg.setName(getPrefixedMethodName(method, methodSequence).toString());
mg.setAccessFlags(accessFlags);
mg.setMaxStack();
mg.setMaxLocals();
return mg.getMethod();
}
/**
* Creates a proxy method for the original method specified.
* This method has the same signature as the original method and
* catches the invocation for further processing by the framework
* before redirecting to the original method.
*
* @param cp the ConstantPoolGen
* @param cg the ClassGen
* @param originalMethod the current method
* @param factory the objectfactory
* @param methodId the id of the current method in the lookup tabl
* @param methodSequence the methods sequence number
* @param accessFlags the access flags for the original method
* @param uuid the UUID for the weave model
* @param controllerClassName the class name of the controller class to use
* @return the proxy method
*/
private Method createProxyMethod(final ConstantPoolGen cp,
final ClassGen cg,
final MethodGen originalMethod,
final InstructionFactory factory,
final int methodId,
final int methodSequence,
final int accessFlags,
final String uuid,
final String controllerClassName) {
final InstructionList il = new InstructionList();
final Type[] parameterTypes = Type.getArgumentTypes(originalMethod.getSignature());
final String[] parameterNames = originalMethod.getArgumentNames();
final Type returnType = Type.getReturnType(originalMethod.getSignature());
final StringBuffer joinPoint = getJoinPointName(originalMethod.getMethod(), methodSequence);
final MethodGen method = new MethodGen(
accessFlags,
returnType,
parameterTypes,
parameterNames,
originalMethod.getName(),
cg.getClassName(),
il, cp
);
String[] exceptions = originalMethod.getExceptions();
for (int i = 0; i < exceptions.length; i++) {
method.addException(exceptions[i]);
}
int idxParam = 0;
int idxStack = 0;
int indexJoinPoint = parameterTypes.length * 2 + 1;
BranchInstruction biIfNotNull = null;
InstructionHandle ihIfNotNull = null;
// Object joinPoint = ___jp.get();
il.append(factory.createFieldAccess(
cg.getClassName(),
joinPoint.toString(),
new ObjectType(TransformationUtil.THREAD_LOCAL_CLASS),
Constants.GETSTATIC
));
il.append(factory.createInvoke(
TransformationUtil.THREAD_LOCAL_CLASS,
"get",
Type.OBJECT,
Type.NO_ARGS,
Constants.INVOKEVIRTUAL
));
il.append(factory.createStore(Type.OBJECT, indexJoinPoint));
// if (joinPoint == null) {
il.append(factory.createLoad(Type.OBJECT, indexJoinPoint));
biIfNotNull = factory.createBranchInstruction(Constants.IFNONNULL, null);
il.append(biIfNotNull);
// joinPoint = new StaticMethodJoinPoint(uuid, this, 10);
il.append(factory.createNew(TransformationUtil.STATIC_METHOD_JOIN_POINT_CLASS));
// loads the parameters (uuid, the class, the method id)
il.append(InstructionConstants.DUP);
il.append(new PUSH(cp, uuid));
il.append(factory.createFieldAccess(
cg.getClassName(),
TransformationUtil.STATIC_CLASS_FIELD,
new ObjectType("java.lang.Class"),
Constants.GETSTATIC
));
il.append(new PUSH(cp, methodId));
il.append(new PUSH(cp, controllerClassName));
// invokes the constructor
il.append(factory.createInvoke(
TransformationUtil.STATIC_METHOD_JOIN_POINT_CLASS,
"<init>",
Type.VOID,
new Type[]{Type.STRING, new ObjectType("java.lang.Class"), Type.INT, Type.STRING},
Constants.INVOKESPECIAL
));
il.append(factory.createStore(Type.OBJECT, indexJoinPoint));
// ___jp.set(joinPoint);
il.append(factory.createFieldAccess(
cg.getClassName(),
joinPoint.toString(),
new ObjectType(TransformationUtil.THREAD_LOCAL_CLASS),
Constants.GETSTATIC
));
il.append(factory.createLoad(Type.OBJECT, indexJoinPoint));
il.append(factory.createInvoke(
TransformationUtil.THREAD_LOCAL_CLASS,
"set",
Type.VOID,
new Type[]{Type.OBJECT},
Constants.INVOKEVIRTUAL
));
ihIfNotNull = il.append(factory.createLoad(Type.OBJECT, indexJoinPoint));
il.append(factory.createCheckCast(
TransformationUtil.STATIC_METHOD_JOIN_POINT_TYPE));
indexJoinPoint += 2;
il.append(factory.createStore(Type.OBJECT, indexJoinPoint));
biIfNotNull.setTarget(ihIfNotNull);
// if we have parameters, wrap them up
if (parameterTypes.length != 0) {
// create and allocate the parameters array
il.append(new PUSH(cp, parameterTypes.length));
il.append(factory.createNewArray(Type.OBJECT, (short)1));
// put it on the stack
il.append(InstructionConstants.DUP);
il.append(new PUSH(cp, idxStack));
idxStack++;
// add all the parameters, wrap the primitive types in their
// object counterparts
for (int count = 0; count < parameterTypes.length; count++) {
String wrapperClass = null;
BasicType type = null;
boolean hasLongOrDouble = false;
if (parameterTypes[count] instanceof ObjectType ||
parameterTypes[count] instanceof ArrayType) {
// we have an object or an array
il.append(factory.createLoad(Type.OBJECT, idxParam));
il.append(InstructionConstants.AASTORE);
idxParam++;
}
else if (parameterTypes[count] instanceof BasicType) {
// we have a primitive type
hasLongOrDouble = false;
if ((parameterTypes[count]).equals(Type.LONG)) {
wrapperClass = "java.lang.Long";
type = Type.LONG;
hasLongOrDouble = true;
}
else if ((parameterTypes[count]).equals(Type.INT)) {
wrapperClass = "java.lang.Integer";
type = Type.INT;
}
else if ((parameterTypes[count]).equals(Type.SHORT)) {
wrapperClass = "java.lang.Short";
type = Type.SHORT;
}
else if ((parameterTypes[count]).equals(Type.DOUBLE)) {
wrapperClass = "java.lang.Double";
type = Type.DOUBLE;
hasLongOrDouble = true;
}
else if ((parameterTypes[count]).equals(Type.FLOAT)) {
wrapperClass = "java.lang.Float";
type = Type.FLOAT;
}
else if ((parameterTypes[count]).equals(Type.CHAR)) {
wrapperClass = "java.lang.Character";
type = Type.CHAR;
}
else if ((parameterTypes[count]).equals(Type.BYTE)) {
wrapperClass = "java.lang.Byte";
type = Type.BYTE;
}
else if ((parameterTypes[count]).equals(Type.BOOLEAN)) {
wrapperClass = "java.lang.Boolean";
type = Type.BOOLEAN;
}
else {
throw new RuntimeException("unknown parameter type: " + parameterTypes[count]);
}
il.append(factory.createNew(wrapperClass));
il.append(InstructionConstants.DUP);
il.append(factory.createLoad(type, idxParam));
il.append(factory.createInvoke(
wrapperClass,
"<init>",
Type.VOID,
new Type[]{type},
Constants.INVOKESPECIAL
));
il.append(InstructionConstants.AASTORE);
idxParam++;
} // end handle basic or object type
if (count != parameterTypes.length - 1) {
// if we don't have the last parameter,
// create the parameter on the stack
il.append(InstructionConstants.DUP);
il.append(new PUSH(cp, idxStack));
idxStack++;
// long's and double's needs two registers to fit
if (hasLongOrDouble) {
idxParam++;
}
}
}
// create the object array
il.append(factory.createStore(Type.OBJECT, idxParam));
// if threadsafe grab the newly retrieved local join point field from the stack
il.append(factory.createLoad(Type.OBJECT, indexJoinPoint));
// invoke joinPoint.setParameter(..)
il.append(factory.createLoad(Type.OBJECT, idxParam));
il.append(factory.createInvoke(
TransformationUtil.STATIC_METHOD_JOIN_POINT_CLASS,
"setParameters",
Type.VOID,
new Type[]{new ArrayType(Type.OBJECT, 1)},
Constants.INVOKEVIRTUAL
));
idxParam++;
} // end - if parameters.length != 0
// if threadsafe grab the newly retrieved local join point field from the stack
il.append(factory.createLoad(Type.OBJECT, indexJoinPoint));
il.append(factory.createInvoke(
TransformationUtil.STATIC_METHOD_JOIN_POINT_CLASS,
"proceed",
Type.OBJECT,
Type.NO_ARGS,
Constants.INVOKEVIRTUAL
));
if (!returnType.equals(Type.VOID)) {
// create the result from the invocation
il.append(factory.createStore(Type.OBJECT, idxParam));
il.append(factory.createLoad(Type.OBJECT, idxParam));
// cast the result and return it, if the return type is a
// primitive type, retrieve it from the wrapped object first
if (returnType instanceof BasicType) {
if (returnType.equals(Type.LONG)) {
il.append(factory.createCheckCast(
new ObjectType("java.lang.Long")
));
il.append(factory.createInvoke(
"java.lang.Long",
"longValue",
Type.LONG,
Type.NO_ARGS,
Constants.INVOKEVIRTUAL
));
}
else if (returnType.equals(Type.INT)) {
il.append(factory.createCheckCast(
new ObjectType("java.lang.Integer")
));
il.append(factory.createInvoke(
"java.lang.Integer",
"intValue",
Type.INT,
Type.NO_ARGS,
Constants.INVOKEVIRTUAL
));
}
else if (returnType.equals(Type.SHORT)) {
il.append(factory.createCheckCast(
new ObjectType("java.lang.Short")
));
il.append(factory.createInvoke(
"java.lang.Short",
"shortValue",
Type.SHORT,
Type.NO_ARGS,
Constants.INVOKEVIRTUAL
));
}
else if (returnType.equals(Type.DOUBLE)) {
il.append(factory.createCheckCast(
new ObjectType("java.lang.Double")
));
il.append(factory.createInvoke(
"java.lang.Double",
"doubleValue",
Type.DOUBLE,
Type.NO_ARGS,
Constants.INVOKEVIRTUAL
));
}
else if (returnType.equals(Type.FLOAT)) {
il.append(factory.createCheckCast(
new ObjectType("java.lang.Float")
));
il.append(factory.createInvoke(
"java.lang.Float",
"floatValue",
Type.FLOAT,
Type.NO_ARGS,
Constants.INVOKEVIRTUAL
));
}
else if (returnType.equals(Type.CHAR)) {
il.append(factory.createCheckCast(
new ObjectType("java.lang.Character")
));
il.append(factory.createInvoke(
"java.lang.Character",
"charValue",
Type.CHAR,
Type.NO_ARGS,
Constants.INVOKEVIRTUAL
));
}
else if (returnType.equals(Type.BYTE)) {
il.append(factory.createCheckCast(
new ObjectType("java.lang.Byte")
));
il.append(factory.createInvoke(
"java.lang.Byte",
"byteValue",
Type.BYTE,
Type.NO_ARGS,
Constants.INVOKEVIRTUAL
));
}
else if (returnType.equals(Type.BOOLEAN)) {
il.append(factory.createCheckCast(
new ObjectType("java.lang.Boolean")
));
il.append(factory.createInvoke(
"java.lang.Boolean",
"booleanValue",
Type.BOOLEAN,
Type.NO_ARGS,
Constants.INVOKEVIRTUAL
));
}
else if (returnType.equals(Type.VOID)) {
;// skip
}
else {
throw new RuntimeException("unknown return type: " + returnType);
}
}
else {
// cast the result to the right type
il.append(factory.createCast(Type.OBJECT, returnType));
}
}
il.append(factory.createReturn(returnType));
method.setMaxStack();
method.setMaxLocals();
return method.getMethod();
}
/**
* Callback method. Is being called before each transformation.
*/
public void sessionStart() {
}
/**
* Callback method. Is being called after each transformation.
*/
public void sessionEnd() {
}
/**
* Callback method. Prints a log/status message at each transformation.
*
* @return a log string
*/
public String verboseMessage() {
return this.getClass().getName();
}
/**
* Filters the classes to be transformed.
*
* @param classMetaData the meta-data for the class
* @param cg the class to filter
* @return boolean true if the method should be filtered away
*/
private boolean classFilter(final ClassMetaData classMetaData, final ClassGen cg) {
if (cg.isInterface() ||
cg.getSuperclassName().equals("org.codehaus.aspectwerkz.advice.AroundAdvice") ||
cg.getSuperclassName().equals("org.codehaus.aspectwerkz.advice.PreAdvice") ||
cg.getSuperclassName().equals("org.codehaus.aspectwerkz.advice.PostAdvice")) {
return true;
}
if (!m_definition.inTransformationScope(cg.getClassName())) {
return true;
}
if (m_definition.hasMethodPointcut(classMetaData) ||
m_definition.hasThrowsPointcut(classMetaData)) {
return false;
}
return true;
}
/**
* Filters the methods to be transformed.
*
* @param classMetaData the class meta-data
* @param methodMetaData the method meta-data
* @param method the method to filter
* @return the UUID for the weave model
*/
private String methodFilter(final ClassMetaData classMetaData,
final MethodMetaData methodMetaData,
final Method method) {
String uuid = null;
if (method.isAbstract() ||
method.getName().equals("<init>") ||
method.getName().equals("<clinit>") ||
method.getName().startsWith(TransformationUtil.ORIGINAL_METHOD_PREFIX) ||
method.getName().equals(TransformationUtil.GET_META_DATA_METHOD) ||
method.getName().equals(TransformationUtil.SET_META_DATA_METHOD) ||
method.getName().equals(TransformationUtil.CLASS_LOOKUP_METHOD) ||
method.getName().equals(TransformationUtil.GET_UUID_METHOD)) {
uuid = null;
}
else {
if (m_definition.hasMethodPointcut(classMetaData, methodMetaData)) {
uuid = m_definition.getUuid();
}
if (m_definition.hasThrowsPointcut(classMetaData, methodMetaData)) {
uuid = m_definition.getUuid();
}
}
return uuid;
}
/**
* Returns the name of the join point.
*
* @param method the method
* @param methodSequence the method sequence
* @return the name of the join point
*/
private StringBuffer getJoinPointName(final Method method,
final int methodSequence) {
final StringBuffer joinPoint = new StringBuffer();
joinPoint.append(TransformationUtil.STATIC_METHOD_JOIN_POINT_PREFIX);
joinPoint.append(method.getName());
joinPoint.append(TransformationUtil.DELIMITER);
joinPoint.append(methodSequence);
return joinPoint;
}
/**
* Returns the prefixed method name.
*
* @param method the method
* @param methodSequence the method sequence
* @return the name of the join point
*/
private static StringBuffer getPrefixedMethodName(final Method method,
final int methodSequence) {
final StringBuffer methodName = new StringBuffer();
methodName.append(TransformationUtil.ORIGINAL_METHOD_PREFIX);
methodName.append(method.getName());
methodName.append(TransformationUtil.DELIMITER);
methodName.append(methodSequence);
return methodName;
}
///CLOVER:ON
}