Package org.jboss.resource.deployers

Source Code of org.jboss.resource.deployers.ManagedConnectionFactoryParserDeployer

/*
* 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.resource.deployers;

import java.io.InputStream;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.Unmarshaller;
import javax.xml.transform.sax.SAXSource;

import org.jboss.deployers.vfs.spi.deployer.AbstractVFSParsingDeployer;
import org.jboss.deployers.vfs.spi.structure.VFSDeploymentUnit;
import org.jboss.resource.metadata.mcf.ManagedConnectionFactoryDeploymentGroup;
import org.jboss.resource.metadata.repository.JCAMetaDataRepository;
import org.jboss.util.xml.JBossEntityResolver;
import org.jboss.vfs.VirtualFile;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.XMLReaderFactory;

/**
* A ManagedConnectionFactoryParserDeployer.
*
* @author <a href="weston.price@jboss.org">Weston Price</a>
* @author adrian@jboss.org
* @version $Revision: 104080 $
*
* TODO Note, this is currently a total hack until we can rework the JAXBDeployer
*/
public class ManagedConnectionFactoryParserDeployer extends AbstractVFSParsingDeployer<ManagedConnectionFactoryDeploymentGroup>
{  
   /** The context */
   private JAXBContext context;  
  
   /** The repository */
   private JCAMetaDataRepository repository;

   /**
    * Create a new ManagedConnectionFactoryParserDeployer.
    */
   public ManagedConnectionFactoryParserDeployer()
   {
      super(ManagedConnectionFactoryDeploymentGroup.class);
      setIncludeDeploymentFile(true);
      setBuildManagedObject(true);

   }

   /**
    * Get the repository.
    *
    * @return the repository.
    */
   public JCAMetaDataRepository getRepository()
   {
      return repository;
   }

   /**
    * Set the repository.
    *
    * @param repository The repository to set.
    */
   public void setRepository(JCAMetaDataRepository repository)
   {
      this.repository = repository;
   }
  
   public void create() throws Exception
   {
      Class<?>[] classes = {super.getOutput()};
      context = JAXBContext.newInstance(classes);     
   }
  
   @Override
   protected ManagedConnectionFactoryDeploymentGroup parse(VFSDeploymentUnit unit, VirtualFile file, ManagedConnectionFactoryDeploymentGroup root) throws Exception
   {
      //TODO do we need to this every time?
      Unmarshaller um = context.createUnmarshaller();     
      InputStream is = file.openStream();

      try
      {
         InputSource input = new InputSource(is);
         input.setSystemId(file.toURI().toString());
         XMLReader reader = XMLReaderFactory.createXMLReader();
         reader.setEntityResolver(new JBossEntityResolver());
         SAXSource source = new SAXSource(reader, input);
         JAXBElement<ManagedConnectionFactoryDeploymentGroup> elem = um.unmarshal(source, ManagedConnectionFactoryDeploymentGroup.class);
         ManagedConnectionFactoryDeploymentGroup deployment = elem.getValue();
         repository.addManagedConnectionFactoryDeploymentGroup(deployment);
         return deployment;
      }     
      finally
      {
         if (is != null)
            is.close();           
      }
   }
  
   @Override
   protected void init(VFSDeploymentUnit unit, ManagedConnectionFactoryDeploymentGroup metaData, VirtualFile file) throws Exception
   {
      metaData.setUrl(file.toURL());
   }

}
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