/*
* 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.jboss.security.deployers;
import java.io.InputStream;
import java.util.Map;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Unmarshaller;
import org.jboss.deployers.vfs.spi.deployer.JAXBDeployer;
import org.jboss.deployers.vfs.spi.structure.VFSDeploymentUnit;
import org.jboss.vfs.VirtualFile;
import org.xml.sax.InputSource;
/**
* A parsing deployer that is capable of parsing
* a JAXB model with the root element being
* JAXBElement<T>
*
* @author Anil.Saldhana@redhat.com
* @since Mar 17, 2009
*/
@SuppressWarnings("unchecked")
public class JAXBElementParsingDeployer<T,V> extends JAXBDeployer
{
/** The JAXBContext */
protected JAXBContext context;
/** The properties */
protected Map<String, Object> properties;
protected Class<V> enclosed;
/**
* CTR
* @param output JAXBElement.class
* @param enclosed Type enclosed by JAXBElement
*/
public JAXBElementParsingDeployer(Class<T> output, Class<V> enclosed)
{
super(output);
this.enclosed = enclosed;
}
/**
* Create lifecycle
*
* @throws Exception for any problem
*/
@Override
public void create() throws Exception
{
if (properties != null)
context = JAXBContext.newInstance(new Class[] {enclosed}, properties);
else
context = JAXBContext.newInstance(enclosed);
}
/**
* Destroy lifecycle
*/
public void destroy()
{
context = null;
}
@Override
protected Object parse(VFSDeploymentUnit unit, VirtualFile file, Object root) throws Exception
{
Unmarshaller unmarshaller = context.createUnmarshaller();
InputStream is = openStreamAndValidate(file);
try
{
InputSource source = new InputSource(is);
source.setSystemId(file.toURI().toString());
Object o = unmarshaller.unmarshal(source);
return getOutput().cast(o);
}
finally
{
try
{
is.close();
}
catch (Exception ignored)
{
}
}
}
}