org.wso2.balana.xacml3

Class AdviceExpression

java.lang.Object

org.wso2.balana.xacml3.AdviceExpression

public class AdviceExpression
extends Object

Represents the AdviceExpressionType XML type in XACML. Advice are introduced with XACML 3

Constructor Summary

Constructors

Constructor and Description
AdviceExpression(URI adviceId, int appliesTo, List<AttributeAssignmentExpression> attributeAssignmentExpressions) Constructor that takes all the data associated with an AdviceExpression .

Method Summary

Modifier and Type	Method and Description
void	encode(StringBuilder builder) Encodes this ObligationExpression into its XML form and writes this out to the provided StringBuilder
Advice	evaluate(EvaluationCtx ctx) return evaluation result of the advice expression
URI	getAdviceId() returns advice id
int	getAppliesTo() returns whether this is applied for permit or deny
static AdviceExpression	getInstance(Node root, PolicyMetaData metaData) Creates an instance of AdviceExpression based on the DOM root node.

Methods inherited from class java.lang.Object

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

Constructor Detail

AdviceExpression

public AdviceExpression(URI adviceId,
                        int appliesTo,
                        List<AttributeAssignmentExpression> attributeAssignmentExpressions)

Constructor that takes all the data associated with an AdviceExpression .

Parameters:

adviceId - the advice's id

appliesTo - the effect for which this advice must be provided

attributeAssignmentExpressions - a List of AttributeAssignmentExpressions

Method Detail

getInstance

public static AdviceExpression getInstance(Node root,
                                           PolicyMetaData metaData)
                                    throws ParsingException

Creates an instance of AdviceExpression based on the DOM root node.

Parameters:

root - the DOM root of the AdviceExpressionType XML type

metaData - policy meta data

Returns:

an instance of an AdviceExpression

Throws:

ParsingException - if the structure isn't valid

getAppliesTo

public int getAppliesTo()

returns whether this is applied for permit or deny

Returns:

permit/deny

getAdviceId

public URI getAdviceId()

returns advice id

Returns:

advice id

evaluate

public Advice evaluate(EvaluationCtx ctx)

return evaluation result of the advice expression

Parameters:

ctx - EvaluationCtx

Returns:

result as Advice Object

encode

public void encode(StringBuilder builder)

Encodes this ObligationExpression into its XML form and writes this out to the provided StringBuilder

Parameters:

builder - string stream into which the XML-encoded data is written