/*********************************************************************
* JavaBeansXmlAdapter.java
* created on 10.03.2005 by netseeker
* $Source: /cvsroot/ejoe/EJOE/src/de/netseeker/ejoe/adapter/JavaBeansXmlAdapter.java,v $
* $Date: 2007/05/27 22:13:09 $
* $Revision: 1.17 $
*
* ====================================================================
*
* Copyright 2005-2006 netseeker aka Michael Manske
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*
* This file is part of the ejoe framework.
* For more information on the author, please see
* <http://www.manskes.de/>.
*
*********************************************************************/
package de.netseeker.ejoe.adapter;
import java.beans.ExceptionListener;
import java.beans.XMLDecoder;
import java.beans.XMLEncoder;
import java.io.InputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Simple SerializeAdapter implementation using the XmlEncoder/XmlDecoder classes of the Java Beans API
*
* @author netseeker
*/
public class JavaBeansXmlAdapter extends BaseAdapter implements ExceptionListener
{
private static final long serialVersionUID = 1L;
private static final Logger logger = Logger.getLogger( JavaBeansXmlAdapter.class.getName() );
/*
* (non-Javadoc)
*
* @see de.netseeker.ejoe.adapter.SerializeAdapter#read(java.io.InputStream)
*/
public Object read( InputStream in ) throws Exception
{
XMLDecoder decoder = new XMLDecoder( in );
decoder.setExceptionListener( this );
Object result = null;
try
{
// System.out.println("Read started!!! [" +
// Thread.currentThread().getName() + "]");
result = decoder.readObject();
// System.out.println("Read finished!!! [" +
// Thread.currentThread().getName() + "]");
}
finally
{
if ( decoder != null ) decoder.close();
}
return result;
}
/*
* (non-Javadoc)
*
* @see de.netseeker.ejoe.adapter.SerializeAdapter#write(java.lang.Object, java.io.OutputStream)
*/
public void write( Object obj, OutputStream out ) throws Exception
{
XMLEncoder encoder = new XMLEncoder( out );
encoder.setExceptionListener( this );
try
{
// see http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4426674
encoder.setPersistenceDelegate( BigInteger.class, encoder.getPersistenceDelegate( Integer.class ) );
encoder.setPersistenceDelegate( BigDecimal.class, encoder.getPersistenceDelegate( Integer.class ) );
encoder.writeObject( obj );
}
finally
{
encoder.close();
}
}
/*
* (non-Javadoc)
*
* @see java.beans.ExceptionListener#exceptionThrown(java.lang.Exception)
*/
public void exceptionThrown( Exception e )
{
logger.log( Level.WARNING, e.getMessage(), e );
}
/* (non-Javadoc)
* @see de.netseeker.ejoe.adapter.BaseAdapter#requiresCustomEOFHandling()
*/
public boolean requiresCustomEOFHandling()
{
return false;
}
/* (non-Javadoc)
* @see de.netseeker.ejoe.adapter.BaseAdapter#isSelfBuffered()
*/
public boolean isSelfBuffered()
{
return true;
}
/*
* (non-Javadoc)
*
* @see de.netseeker.ejoe.adapter.BaseAdapter#getContentType()
*/
public String getContentType()
{
return "text/xml";
}
}