sandmark.watermark.objectwm
Class ObjectUtil

java.lang.Object
  |
  +--sandmark.watermark.objectwm.ObjectUtil

public class ObjectUtil

extends java.lang.Object

This class implements all the APIs required by the main insertion methods

Field Summary

de.fub.bytecode.generic.ClassGen	cgObj
de.fub.bytecode.generic.ConstantPoolGen	cpgObj
de.fub.bytecode.classfile.ConstantPool	cpObj
de.fub.bytecode.generic.InstructionList	instrListObj
de.fub.bytecode.classfile.JavaClass	jcObj
de.fub.bytecode.generic.MethodGen	mgObj
de.fub.bytecode.classfile.Method	oldmethod
de.fub.bytecode.classfile.ClassParser	pObj
de.fub.bytecode.generic.InstructionHandle	targetHandleObj

Constructor Summary

ObjectUtil()

Method Summary

de.fub.bytecode.generic.Instruction	extractInstrType(java.lang.String instr) This method takes the opcode of the instruction as a String and returns the corresponding 'Instruction' object which is to be then used for insertion; 'instr' is complete ie. contains all the actual end parameters
int	getIndexOfHandle(de.fub.bytecode.generic.InstructionHandle instrHandle) Retrieves the index of a given instructionHandle
int	getNumberOfClasses(ClassFileCollection cfc)
int	getNumberOfInstanceOfGroup(de.fub.bytecode.generic.MethodGen mg, java.lang.String[] instrStrGrp, int numInstr) Returns the number of instances of a group of instrcutions in a particular method
int	getNumberOfInstructionsInMethod(de.fub.bytecode.generic.MethodGen mg) Returns the number of instructions in the method
void	getObjects(java.lang.String classfileName) Initializes the various class/method objects while selecting a method for access
int	getTargerterIndices(int lowerIndexLimit, int[] targetIndices) this method returns the current targeter points in the code above the lowerIndexLimit point ; returns the number of points, and the indices are stored in the output parameter 'targetIndices'
java.lang.String	getTargetClassName()
int[]	getTargeterPointsInRange(int low, int high, de.fub.bytecode.generic.InstructionList instrList) Returns the targeter indices within a given range of indices
void	setTargetClassName(java.lang.String className)
boolean	skipMethod(de.fub.bytecode.generic.MethodGen mg) skips the method whose parameter type is outside the range of types implemented
void	updateJarFileInfo() Committing the final changes into the jar file

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

pObj

public de.fub.bytecode.classfile.ClassParser pObj

jcObj

public de.fub.bytecode.classfile.JavaClass jcObj

cgObj

public de.fub.bytecode.generic.ClassGen cgObj

cpObj

public de.fub.bytecode.classfile.ConstantPool cpObj

cpgObj

public de.fub.bytecode.generic.ConstantPoolGen cpgObj

mgObj

public de.fub.bytecode.generic.MethodGen mgObj

instrListObj

public de.fub.bytecode.generic.InstructionList instrListObj

targetHandleObj

public de.fub.bytecode.generic.InstructionHandle targetHandleObj

oldmethod

public de.fub.bytecode.classfile.Method oldmethod

Constructor Detail

ObjectUtil

public ObjectUtil()

Method Detail

setTargetClassName

public void setTargetClassName(java.lang.String className)

getTargetClassName

public java.lang.String getTargetClassName()

extractInstrType

public de.fub.bytecode.generic.Instruction extractInstrType(java.lang.String instr)

This method takes the opcode of the instruction as a String and returns the corresponding 'Instruction' object which is to be then used for insertion; 'instr' is complete ie. contains all the actual end parameters

skipMethod

public boolean skipMethod(de.fub.bytecode.generic.MethodGen mg)

skips the method whose parameter type is outside the range of types implemented

getNumberOfInstanceOfGroup

public int getNumberOfInstanceOfGroup(de.fub.bytecode.generic.MethodGen mg,
                                      java.lang.String[] instrStrGrp,
                                      int numInstr)

Returns the number of instances of a group of instrcutions in a particular method

getTargeterPointsInRange

public int[] getTargeterPointsInRange(int low,
                                      int high,
                                      de.fub.bytecode.generic.InstructionList instrList)

Returns the targeter indices within a given range of indices

getIndexOfHandle

public int getIndexOfHandle(de.fub.bytecode.generic.InstructionHandle instrHandle)

Retrieves the index of a given instructionHandle

getTargerterIndices

public int getTargerterIndices(int lowerIndexLimit,
                               int[] targetIndices)

this method returns the current targeter points in the code above the lowerIndexLimit point ; returns the number of points, and the indices are stored in the output parameter 'targetIndices'

getNumberOfInstructionsInMethod

public int getNumberOfInstructionsInMethod(de.fub.bytecode.generic.MethodGen mg)

Returns the number of instructions in the method

getNumberOfClasses

public int getNumberOfClasses(ClassFileCollection cfc)

getObjects

public void getObjects(java.lang.String classfileName)

Initializes the various class/method objects while selecting a method for access

updateJarFileInfo

public void updateJarFileInfo()

Committing the final changes into the jar file