/*
* Copyright (C) 2011 eXo Platform SAS.
*
* 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.exoplatform.portal.config.model;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
import org.gatein.common.io.IOTools;
import org.jibx.runtime.BindingDirectory;
import org.jibx.runtime.IBindingFactory;
import org.jibx.runtime.impl.UnmarshallingContext;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
*/
public class ModelUnmarshaller {
public static <T> UnmarshalledObject<T> unmarshall(Class<T> type, InputStream in) throws Exception {
return unmarshall(type, IOTools.getBytes(in));
}
public static <T> UnmarshalledObject<T> unmarshall(Class<T> type, byte[] bytes) throws Exception {
ByteArrayInputStream baos = new ByteArrayInputStream(bytes);
//
IBindingFactory bfact = BindingDirectory.getFactory(type);
UnmarshallingContext uctx = (UnmarshallingContext) bfact.createUnmarshallingContext();
uctx.setDocument(baos, null, "UTF-8", false);
T obj = type.cast(uctx.unmarshalElement());
// Find out version
XMLInputFactory factory = XMLInputFactory.newInstance();
baos.reset();
XMLStreamReader reader = factory.createXMLStreamReader(baos);
Version version = Version.UNKNOWN;
while (reader.hasNext()) {
int next = reader.next();
if (next == XMLStreamReader.START_ELEMENT) {
QName name = reader.getName();
String uri = name.getNamespaceURI();
if (uri != null) {
version = Version.forURI(uri);
}
break;
}
}
//
return new UnmarshalledObject<T>(version, obj);
}
}