WSTRenewTargetParser.java

/*
 * JBoss, Home of Professional Open Source. 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.wst;

import javax.xml.namespace.QName;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.events.StartElement;

import org.picketlink.identity.federation.PicketLinkLogger;
import org.picketlink.identity.federation.PicketLinkLoggerFactory;
import org.picketlink.identity.federation.core.exceptions.ParsingException;
import org.picketlink.identity.federation.core.parsers.ParserNamespaceSupport;
import org.picketlink.identity.federation.core.parsers.util.StaxParserUtil;
import org.picketlink.identity.federation.core.wstrust.WSTrustConstants;
import org.picketlink.identity.federation.ws.trust.RenewTargetType;

/**
 * Stax parser for the wst:RenewTarget element
 *
 * @author Anil.Saldhana@redhat.com
 * @since Oct 13, 2010
 */
public class WSTRenewTargetParser implements ParserNamespaceSupport {
    
    private static final PicketLinkLogger logger = PicketLinkLoggerFactory.getLogger();
    
    /**
     * @see {@link ParserNamespaceSupport#parse(XMLEventReader)}
     */
    public Object parse(XMLEventReader xmlEventReader) throws ParsingException {
        RenewTargetType renewTargetType = new RenewTargetType();

        StartElement startElement = StaxParserUtil.peekNextStartElement(xmlEventReader);
        // null start element indicates that the original token hasn't been specified.
        if (startElement == null) {
            throw logger.parserUnableParsingNullToken();
        }

        // this is an unknown type - parse using the transformer.
        try {
            renewTargetType.add(StaxParserUtil.getDOMElement(xmlEventReader));
        } catch (Exception e) {
            throw logger.parserError(e);
        }
        return renewTargetType;
    }

    /**
     * @see {@link ParserNamespaceSupport#supports(QName)}
     */
    public boolean supports(QName qname) {
        String nsURI = qname.getNamespaceURI();
        String localPart = qname.getLocalPart();

        return WSTrustConstants.BASE_NAMESPACE.equals(nsURI) && WSTrustConstants.RENEW_TARGET.equals(localPart);
    }
}