/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, 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.jboss.ws.extensions.json;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLEventWriter;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.codehaus.jettison.badgerfish.BadgerFishXMLInputFactory;
import org.jboss.wsf.common.DOMUtils;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
/**
* An JSON BadgerFish DOM parser
*
* @author Thomas.Diesler@jboss.com
* @since 12-Mar-2008
*/
public class BadgerFishDOMDocumentParser
{
public Document parse(InputStream input) throws IOException
{
try
{
BadgerFishXMLInputFactory inputFactory = new BadgerFishXMLInputFactory();
XMLStreamReader streamReader = inputFactory.createXMLStreamReader(input);
XMLInputFactory readerFactory = XMLInputFactory.newInstance();
XMLEventReader eventReader = readerFactory.createXMLEventReader(streamReader);
// Can not create a STaX writer for a DOMResult in woodstox-3.1.1
// DOMResult result = new DOMResult();
// XMLEventWriter eventWriter = outputFactory.createXMLEventWriter(result);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
XMLEventWriter eventWriter = outputFactory.createXMLEventWriter(baos);
eventWriter.add(eventReader);
eventWriter.close();
// This parsing step should not be necessary, if we could output to a DOMResult
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
return DOMUtils.getDocumentBuilder().parse(bais);
}
catch (XMLStreamException ex)
{
IOException ioex = new IOException("Cannot parse input stream");
ioex.initCause(ex);
throw ioex;
}
catch (SAXException ex)
{
IOException ioex = new IOException("Cannot import in target document");
ioex.initCause(ex);
throw ioex;
}
}
}