100 lines
3.5 KiB
Java
100 lines
3.5 KiB
Java
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/*
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* @(#)DecisionAttribute.java
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*
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* Copyright 2005-2006 Swedish Institute of Computer Science All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistribution in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* Neither the name of Swedish Institute of Computer Science or the names of
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* This software is provided "AS IS," without a warranty of any kind. ALL
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* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
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* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
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* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. THE SWEDISH INSTITUE OF COMPUTER
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* SCIENCE ("SICS") AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES
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* SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS
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* SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SICS OR ITS LICENSORS BE
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* LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT,
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* SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED
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* AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
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* INABILITY TO USE THIS SOFTWARE, EVEN IF SICS HAS BEEN ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* You acknowledge that this software is not designed or intended for use in
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* the design, construction, operation or maintenance of any nuclear facility.
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*/
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package com.sun.xacml.attr;
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import java.net.URI;
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import com.sun.xacml.ctx.Attribute;
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import com.sun.xacml.ctx.Result;
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/**
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* Convenience class that represents the Decision attribute.
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*
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* @author Ludwig Seitz
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*
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*/
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public class DecisionAttribute extends Attribute {
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/**
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* The static id URI of the Decision attribute
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*/
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private static URI idURI;
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/**
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* RuntimeException that wraps an Exception thrown during the
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* creation of idURI, null if none.
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*/
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private static RuntimeException earlyException;
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/**
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* Static initializer that initializes the identifierURI
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* class field so that we can catch any exceptions thrown
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* by URI(String) and transform them into a RuntimeException.
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* Such exceptions should never happen but should be reported
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* properly if they ever do.
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*/
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static {
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try {
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idURI = URI.create(TypeIdentifierConstants.DECISION);
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} catch (IllegalArgumentException e) {
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earlyException = e;
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}
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}
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/**
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* Constructor that creates a Decision Attribute.
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*
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* @param decision The decision code from the <code>Result</code> class.
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*/
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public DecisionAttribute(int decision) {
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super(DecisionAttribute.idURI, null,
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new StringAttribute((String)Result.DECISIONS.get(decision)));
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if (earlyException != null) {
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throw earlyException;
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}
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if (decision != Result.DECISION_DENY
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&& decision != Result.DECISION_PERMIT) {
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throw new IllegalArgumentException("Decision attribute value must"
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+ " be 'PERMIT' or 'DENY'");
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}
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}
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}
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