sandmark.statistics
Class HalsteadMeasures

java.lang.Object
  |
  +--sandmark.statistics.HalsteadMeasures

public class HalsteadMeasures

extends java.lang.Object

Constructor Summary

HalsteadMeasures()

Method Summary

java.util.Vector	evalMeasures(java.util.Iterator itr) Evaluates the Halstead measures n1,n2,N1 and N2
int	getMeasure(java.lang.String measure) Returns the value corresponding to the given measure
java.lang.String	getOperand(EDU.purdue.cs.bloat.editor.Instruction instruct) Returns the operand of the given 'operand instruction' if present returns 'none' if not an operand instruction
java.lang.String	getOperatorType(EDU.purdue.cs.bloat.editor.Instruction instruct) Gets the operator type of the given instruction returns 'none' if not an operator instruction
boolean	isAdd(EDU.purdue.cs.bloat.editor.Instruction instruct) Returns true if instruction is an add instruction
boolean	isDiv(EDU.purdue.cs.bloat.editor.Instruction instruct) Returns true if instruction is a div instruction
boolean	isMul(EDU.purdue.cs.bloat.editor.Instruction instruct) Returns true if instruction is a mul instruction
boolean	isNew(EDU.purdue.cs.bloat.editor.Instruction instruct) Returns true if instruction is a new instruction
boolean	isPutfield(EDU.purdue.cs.bloat.editor.Instruction instruct) Returns true if instruction is a putfield instruction
boolean	isPutstatic(EDU.purdue.cs.bloat.editor.Instruction instruct) Returns true if instruction is a putstatic instruction
boolean	isRem(EDU.purdue.cs.bloat.editor.Instruction instruct) Returns true if instruction is a rem instruction
boolean	isSub(EDU.purdue.cs.bloat.editor.Instruction instruct) Returns true if instruction is a sub instruction
void	setMeasure(java.lang.String measure, int value) Sets measure with the corresponding value

Methods inherited from class java.lang.Object

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

Constructor Detail

HalsteadMeasures

public HalsteadMeasures()

Method Detail

getMeasure

public int getMeasure(java.lang.String measure)

Returns the value corresponding to the given measure

Parameters:

measure - the symbolic name of the measure whose value is needed

Returns:

the value corresponding to that measure

setMeasure

public void setMeasure(java.lang.String measure,
                       int value)

Sets measure with the corresponding value

Parameters:

measure - the symbolic name of the measure

value - the value to be set

evalMeasures

public java.util.Vector evalMeasures(java.util.Iterator itr)

Evaluates the Halstead measures n1,n2,N1 and N2

Returns:

resultVector result vector containing the Halstead measures in the order N1, N2, n1, n2

getOperatorType

public java.lang.String getOperatorType(EDU.purdue.cs.bloat.editor.Instruction instruct)

Gets the operator type of the given instruction returns 'none' if not an operator instruction

Parameters:

instruct - the instruction to be analyzed

Returns:

operType the operator type of the instruction

getOperand

public java.lang.String getOperand(EDU.purdue.cs.bloat.editor.Instruction instruct)

Returns the operand of the given 'operand instruction' if present returns 'none' if not an operand instruction

Parameters:

instruct - the instruction to be analyzed

isAdd

public boolean isAdd(EDU.purdue.cs.bloat.editor.Instruction instruct)

Returns true if instruction is an add instruction

Parameters:

instruct - the instruction to be analyzed

isSub

public boolean isSub(EDU.purdue.cs.bloat.editor.Instruction instruct)

Returns true if instruction is a sub instruction

Parameters:

instruct - the instruction to be analyzed

isMul

public boolean isMul(EDU.purdue.cs.bloat.editor.Instruction instruct)

Returns true if instruction is a mul instruction

Parameters:

instruct - the instruction to be analyzed

isDiv

public boolean isDiv(EDU.purdue.cs.bloat.editor.Instruction instruct)

Returns true if instruction is a div instruction

Parameters:

instruct - the instruction to be analyzed

isRem

public boolean isRem(EDU.purdue.cs.bloat.editor.Instruction instruct)

Returns true if instruction is a rem instruction

Parameters:

instruct - the instruction to be analyzed

isPutstatic

public boolean isPutstatic(EDU.purdue.cs.bloat.editor.Instruction instruct)

Returns true if instruction is a putstatic instruction

Parameters:

instruct - the instruction to be analyzed

isPutfield

public boolean isPutfield(EDU.purdue.cs.bloat.editor.Instruction instruct)

Returns true if instruction is a putfield instruction

Parameters:

instruct - the instruction to be analyzed

isNew

public boolean isNew(EDU.purdue.cs.bloat.editor.Instruction instruct)

Returns true if instruction is a new instruction

Parameters:

instruct - the instruction to be analyzed