/**
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2007 Sun Microsystems Inc. All Rights Reserved
*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the License). You may not use this file except in
* compliance with the License.
*
* You can obtain a copy of the License at
* https://opensso.dev.java.net/public/CDDLv1.0.html or
* opensso/legal/CDDLv1.0.txt
* See the License for the specific language governing
* permission and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* Header Notice in each file and include the License file
* at opensso/legal/CDDLv1.0.txt.
* If applicable, add the following below the CDDL Header,
* with the fields enclosed by brackets [] replaced by
* your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* $Id: DecisionImpl.java,v 1.3 2008/06/25 05:48:12 qcheng Exp $
*
*/
package com.sun.identity.xacml.context.impl;
import com.sun.identity.shared.xml.XMLUtils;
import com.sun.identity.xacml.common.XACMLConstants;
import com.sun.identity.xacml.common.XACMLException;
import com.sun.identity.xacml.common.XACMLSDKUtils;
import com.sun.identity.xacml.context.Decision;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* The <code>Decision</code> element is a container of
* one or more <code>Decision</code>s issued by policy decision point
* @supported.all.api
* <p/>
* Schema:
* <pre>
* <xs:simpleType name="DecisionType">
* <xs:restriction base="xs:string">
* <xs:enumeration value="Permit"/>
* <xs:enumeration value="Deny"/>
* <xs:enumeration value="Indeterminate"/>
* <xs:enumeration value="NotApplicable"/>
* </xs:restriction>
* </xs:simpleType>
* </pre>
*
*/
public class DecisionImpl implements Decision {
private String value = null;
private boolean mutable = true;
/**
* Constructs a <code>Decision</code> object
*/
public DecisionImpl() throws XACMLException {
}
/**
* Constructs a <code>Decision</code> object from an XML string
*
* @param xml string representing a <code>Decision</code> object
* @throws XACMLException if the XML string could not be processed
*/
public DecisionImpl(String xml) throws XACMLException {
Document document = XMLUtils.toDOMDocument(xml, XACMLSDKUtils.debug);
if (document != null) {
Element rootElement = document.getDocumentElement();
processElement(rootElement);
makeImmutable();
} else {
XACMLSDKUtils.debug.error(
"DecisionImpl.processElement(): invalid XML input");
throw new XACMLException(
XACMLSDKUtils.xacmlResourceBundle.getString(
"errorObtainingElement"));
}
}
/**
* Constructs a <code>Decision</code> object from an XML DOM element
*
* @param element XML DOM element representing a <code>Decision</code>
* object
*
* @throws XACMLException if the DOM element could not be processed
*/
public DecisionImpl(Element element) throws XACMLException {
processElement(element);
makeImmutable();
}
/**
* Returns the <code>value</code>s of this object
*
* @return the <code>value</code>s of this object
*/
public String getValue() {
return value;
}
/**
* Sets the <code>value</code>s of this object
*
* @exception XACMLException if the object is immutable
*/
public void setValue(String value) throws XACMLException {
if (!mutable) {
throw new XACMLException(
XACMLSDKUtils.xacmlResourceBundle.getString("objectImmutable"));
}
if (value == null) {
throw new XACMLException(
XACMLSDKUtils.xacmlResourceBundle.getString("null_not_valid"));
}
if (!XACMLSDKUtils.isValidDecision(value)) {
throw new XACMLException(
XACMLSDKUtils.xacmlResourceBundle.getString("invalid_value"));
}
this.value = value;
}
/**
* Returns a string representation
*
* @return a string representation
* @exception XACMLException if conversion fails for any reason
*/
public String toXMLString() throws XACMLException {
return toXMLString(true, false);
}
/**
* Returns a string representation
* @param includeNSPrefix Determines whether or not the namespace qualifier
* is prepended to the Element when converted
* @param declareNS Determines whether or not the namespace is declared
* within the Element.
* @return a string representation
* @exception XACMLException if conversion fails for any reason
*/
public String toXMLString(boolean includeNSPrefix, boolean declareNS)
throws XACMLException {
StringBuffer sb = new StringBuffer(2000);
String nsPrefix = "";
String nsDeclaration = "";
if (declareNS) {
nsDeclaration = XACMLConstants.CONTEXT_NS_DECLARATION;
}
if (includeNSPrefix) {
nsPrefix = XACMLConstants.CONTEXT_NS_PREFIX + ":";
}
sb.append("<").append(nsPrefix).append(XACMLConstants.DECISION)
.append(nsDeclaration).append(">");
if (value != null) {
sb.append(value);
}
sb.append("</").append(nsPrefix).append(XACMLConstants.DECISION)
.append(">\n");
return sb.toString();
}
/**
* Checks if the object is mutable
*
* @return <code>true</code> if the object is mutable,
* <code>false</code> otherwise
*/
public boolean isMutable() {
return mutable;
}
/**
* Makes the object immutable
*/
public void makeImmutable() {
mutable = false;
}
private void processElement(Element element) throws XACMLException {
if (element == null) {
XACMLSDKUtils.debug.error(
"DecisionImpl.processElement(): invalid root element");
throw new XACMLException(XACMLSDKUtils.xacmlResourceBundle.getString(
"invalid_element"));
}
String elemName = element.getLocalName();
if (elemName == null) {
XACMLSDKUtils.debug.error(
"DecisionImpl.processElement(): local name missing");
throw new XACMLException(XACMLSDKUtils.xacmlResourceBundle.getString(
"missing_local_name"));
}
if (!elemName.equals(XACMLConstants.DECISION)) {
XACMLSDKUtils.debug.error(
"DecisionImpl.processElement(): invalid local name "
+ elemName);
throw new XACMLException(XACMLSDKUtils.xacmlResourceBundle.getString(
"invalid_local_name"));
}
String elementValue = element.getTextContent();
if (elementValue == null) {
throw new XACMLException(
XACMLSDKUtils.xacmlResourceBundle.getString("null_not_valid"));
}
if (!XACMLSDKUtils.isValidDecision(elementValue.trim())) {
throw new XACMLException(
XACMLSDKUtils.xacmlResourceBundle.getString("invalid_value"));
} else {
this.value = elementValue;
}
}
}