nbi.xmlsec.xacml.util
Class SyntaxScheme

java.lang.Object
  nbi.xmlsec.xacml.util.SyntaxScheme

public class SyntaxScheme

extends Object

A parser for the syntax scheme used from the RoleManager to parse conditions from the command line. The syntax scheme to define resources, actions or conditions for permissions is defined as follows: datatype-matchfunc[value]

Since:

Version:

$Revision: 1.6 $

Author:

Lutz Suhrbier

Field Summary

(package private) List	args The list of arguments of a function.
(package private) String	function The match function name.
(package private) String	functionValue A function, which is a value of the function.
(package private) String	value The value of a function.

Constructor Summary

SyntaxScheme(String expression)
Creates a syntax scheme by parsing the expression argument.

Method Summary

List	getArgs() Gets the argument list of the function.
String	getFunction() Gets the function name.
String	getFunctionType() Gets the datatype of the function.
String	getFunctionValue() Gets the functionValue.
String	getValue() Gets the value of the function.
private int	indexOfClosingBracket(String expression, int iStartBracket) Determines the index of the next closing bracket.
private int	indexOfNextArg(String expression, int iStart) Determines the index of the next argument within the given expression.
private int	indexOfNextBracket(String expression, int iStartBracket) Determines the index of the next opening or closing bracket.
private int	indexOfOpenBracket(String expression, int iStart) Determines the index of the next opening bracket.
private void	parse(String expression) Parses the expression into the syntax scheme.
private void	parseArgs(String expression, int iStart) Parses the arguments of a function into the list of args.
private int	parseFunction(String expression, int startInd) Parses the next function name until the opening bracket is reached

Methods inherited from class java.lang.Object

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

Field Detail

function

String function

The match function name.

functionValue

String functionValue

A function, which is a value of the function.

value

String value

The value of a function.

args

List args

The list of arguments of a function.

Constructor Detail

SyntaxScheme

public SyntaxScheme(String expression)

Creates a syntax scheme by parsing the expression argument.

Parameters:

expression - The expression to be parsed as a syntax scheme.

Method Detail

parse

private void parse(String expression)

Parses the expression into the syntax scheme.

Parameters:

expression - The expression to be parsed as a syntax scheme.

parseFunction

private int parseFunction(String expression,
                          int startInd)

Parses the next function name until the opening bracket is reached

Parameters:

expression - The expression to be parsed.

startInd - The start index within expression.

Returns:

The index after the closing bracket of the function, or -1.

parseArgs

private void parseArgs(String expression,
                       int iStart)

Parses the arguments of a function into the list of args.

Parameters:

expression - The expression to be parsed.

iStart - The start index within expression.

indexOfNextArg

private int indexOfNextArg(String expression,
                           int iStart)

Determines the index of the next argument within the given expression.

Parameters:

expression - The expression to be parsed.

iStart - The start index within expression.

Returns:

The index after the next komma within the arguments of a function, or -1.

indexOfNextBracket

private int indexOfNextBracket(String expression,
                               int iStartBracket)

Determines the index of the next opening or closing bracket.

Parameters:

expression - The expression to be parsed.

iStartBracket - The start index within expression.

Returns:

The index of the next opening or closing bracket, or -1.

indexOfOpenBracket

private int indexOfOpenBracket(String expression,
                               int iStart)

Determines the index of the next opening bracket.

Parameters:

expression - The expression to be parsed.

iStart - The start index within expression.

Returns:

The index of the next opening bracket, or -1.

indexOfClosingBracket

private int indexOfClosingBracket(String expression,
                                  int iStartBracket)

Determines the index of the next closing bracket.

Parameters:

expression - The expression to be parsed.

iStartBracket - The start index within expression.

Returns:

The index of the next closing bracket, or -1.

getFunction

public String getFunction()

Gets the function name.

Returns:

Returns the function name.

getFunctionType

public String getFunctionType()

Gets the datatype of the function.

Returns:

Returns the datatype of the function.

getFunctionValue

public String getFunctionValue()

Gets the functionValue.

Returns:

Returns the functionValue.

getArgs

public List getArgs()

Gets the argument list of the function.

Returns:

Returns the argument list.

getValue

public String getValue()

Gets the value of the function.

Returns:

Returns the value of the function.