com.ikokoon.serenity.instrumentation.complexity
Class ComplexityMethodAdapter

java.lang.Object
  org.objectweb.asm.MethodAdapter
      com.ikokoon.serenity.instrumentation.complexity.ComplexityMethodAdapter

All Implemented Interfaces:

org.objectweb.asm.MethodVisitor

public class ComplexityMethodAdapter
extends org.objectweb.asm.MethodAdapter

TODO - add the interesting methods to the collection of the complexity. Do we need to add try catch? And what about multiple catch? One for each potential exception thrown? No? This class just visits the byte code in the classes and collects the complexity metrics for the class. Complexity is calculated by adding one every time there is a jump instruction.

Since:

12.07.09

Version:

01.00

Author:

Michael Couck

Field Summary

Fields inherited from class org.objectweb.asm.MethodAdapter

mv

Constructor Summary

ComplexityMethodAdapter(org.objectweb.asm.MethodVisitor methodVisitor, java.lang.Integer access, java.lang.String className, java.lang.String methodName, java.lang.String methodDescription)
The constructor initialises a ComplexityMethodAdapter that takes all the interesting items for the method that is to be enhanced including the parent method visitor.

Method Summary

void	visitEnd()
void	visitInsn(int opcode)
void	visitJumpInsn(int opcode, org.objectweb.asm.Label paramLabel)
void	visitLineNumber(int lineNumber, org.objectweb.asm.Label label)
void	visitLookupSwitchInsn(org.objectweb.asm.Label dflt, int[] keys, org.objectweb.asm.Label[] labels)
void	visitTableSwitchInsn(int min, int max, org.objectweb.asm.Label dflt, org.objectweb.asm.Label[] labels)
void	visitTryCatchBlock(org.objectweb.asm.Label start, org.objectweb.asm.Label end, org.objectweb.asm.Label handler, java.lang.String type)

Methods inherited from class org.objectweb.asm.MethodAdapter

visitAnnotation, visitAnnotationDefault, visitAttribute, visitCode, visitFieldInsn, visitIincInsn, visitIntInsn, visitLabel, visitLdcInsn, visitLocalVariable, visitMaxs, visitMethodInsn, visitMultiANewArrayInsn, visitParameterAnnotation, visitTypeInsn, visitVarInsn

Methods inherited from class java.lang.Object

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

Constructor Detail

ComplexityMethodAdapter

public ComplexityMethodAdapter(org.objectweb.asm.MethodVisitor methodVisitor,
                               java.lang.Integer access,
                               java.lang.String className,
                               java.lang.String methodName,
                               java.lang.String methodDescription)

The constructor initialises a ComplexityMethodAdapter that takes all the interesting items for the method that is to be enhanced including the parent method visitor.

Parameters:

methodVisitor - the method visitor of the parent

className - the name of the class the method belongs to

methodName - the name of the method that will be collected for complexity

methodDescription - the description of the method, i.e. the byte code signature

Method Detail

visitLineNumber

public void visitLineNumber(int lineNumber,
                            org.objectweb.asm.Label label)

Specified by:

visitLineNumber in interface org.objectweb.asm.MethodVisitor

Overrides:

visitLineNumber in class org.objectweb.asm.MethodAdapter

visitJumpInsn

public void visitJumpInsn(int opcode,
                          org.objectweb.asm.Label paramLabel)

Specified by:

visitJumpInsn in interface org.objectweb.asm.MethodVisitor

Overrides:

visitJumpInsn in class org.objectweb.asm.MethodAdapter

visitEnd

public void visitEnd()

Specified by:

visitEnd in interface org.objectweb.asm.MethodVisitor

Overrides:

visitEnd in class org.objectweb.asm.MethodAdapter

visitTryCatchBlock

public void visitTryCatchBlock(org.objectweb.asm.Label start,
                               org.objectweb.asm.Label end,
                               org.objectweb.asm.Label handler,
                               java.lang.String type)

Specified by:

visitTryCatchBlock in interface org.objectweb.asm.MethodVisitor

Overrides:

visitTryCatchBlock in class org.objectweb.asm.MethodAdapter

visitLookupSwitchInsn

public void visitLookupSwitchInsn(org.objectweb.asm.Label dflt,
                                  int[] keys,
                                  org.objectweb.asm.Label[] labels)

Specified by:

visitLookupSwitchInsn in interface org.objectweb.asm.MethodVisitor

Overrides:

visitLookupSwitchInsn in class org.objectweb.asm.MethodAdapter

visitTableSwitchInsn

public void visitTableSwitchInsn(int min,
                                 int max,
                                 org.objectweb.asm.Label dflt,
                                 org.objectweb.asm.Label[] labels)

Specified by:

visitTableSwitchInsn in interface org.objectweb.asm.MethodVisitor

Overrides:

visitTableSwitchInsn in class org.objectweb.asm.MethodAdapter

visitInsn

public void visitInsn(int opcode)

Specified by:

visitInsn in interface org.objectweb.asm.MethodVisitor

Overrides:

visitInsn in class org.objectweb.asm.MethodAdapter