/*
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* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.picketlink.identity.federation.core.parsers.wsp;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.events.EndElement;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;
import org.picketlink.identity.federation.core.ErrorCodes;
import org.picketlink.identity.federation.core.exceptions.ParsingException;
import org.picketlink.identity.federation.core.parsers.AbstractParser;
import org.picketlink.identity.federation.core.parsers.ParserController;
import org.picketlink.identity.federation.core.parsers.ParserNamespaceSupport;
import org.picketlink.identity.federation.core.parsers.util.StaxParserUtil;
import org.picketlink.identity.federation.core.wspolicy.WSPolicyConstants;
import org.picketlink.identity.federation.core.wstrust.WSTrustConstants;
import org.picketlink.identity.federation.ws.policy.AppliesTo;
/**
* <p>
* Parses the WS-Policy elements that can be part of the WS-T RST
* </p>
*
* @author Anil.Saldhana@redhat.com
* @since Oct 14, 2010
*/
public class WSPolicyParser extends AbstractParser {
/**
* @see {@link ParserNamespaceSupport#parse(XMLEventReader)}
*/
public Object parse(XMLEventReader xmlEventReader) throws ParsingException {
while (xmlEventReader.hasNext()) {
XMLEvent xmlEvent = StaxParserUtil.peek(xmlEventReader);
if (xmlEvent instanceof StartElement) {
StartElement startElement = (StartElement) xmlEvent;
String elementName = StaxParserUtil.getStartElementName(startElement);
if (elementName.equalsIgnoreCase(WSPolicyConstants.APPLIES_TO)) {
// Get the AppliesTo element
startElement = StaxParserUtil.getNextStartElement(xmlEventReader);
AppliesTo appliesTo = new AppliesTo();
// Now we do not do anything to the applies to element. We go further
startElement = StaxParserUtil.peekNextStartElement(xmlEventReader);
QName qname = startElement.getName();
ParserNamespaceSupport parser = ParserController.get(qname);
if (parser == null)
throw new RuntimeException(ErrorCodes.UNKNOWN_TAG + qname);
Object parsedObject = parser.parse(xmlEventReader);
appliesTo.addAny(parsedObject);
EndElement endElement = StaxParserUtil.getNextEndElement(xmlEventReader);
StaxParserUtil.validate(endElement, WSPolicyConstants.APPLIES_TO);
return appliesTo;
}
} else {
StaxParserUtil.getNextEvent(xmlEventReader);
}
}
throw logger.parserFailed(WSTrustConstants.WSP_NS);
}
/**
* @see {@link ParserNamespaceSupport#supports(QName)}
*/
public boolean supports(QName qname) {
String nsURI = qname.getNamespaceURI();
return WSTrustConstants.WSP_NS.equals(nsURI) || WSTrustConstants.WSP_15_NS.equals(nsURI);
}
}