/*********************************************************************
* UTF8StringAdapter.java
* created on 18.03.2005 by netseeker
* $Source: /cvsroot/ejoe/EJOE/src/de/netseeker/ejoe/adapter/UTF8StringAdapter.java,v $
* $Date: 2006/11/05 16:33:37 $
* $Revision: 1.9 $
*
* ====================================================================
*
* 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.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import de.netseeker.ejoe.EJConstants;
/**
* Simple raw string (de)Serializer for serializing/deserializing string messages. This adapter will always use UTF8
* encoding.
*
* @author netseeker
* @since 0.3.4
*/
public class UTF8StringAdapter extends BaseAdapter
{
private static final long serialVersionUID = 1L;
/*
* (non-Javadoc)
*
* @see de.netseeker.ejoe.adapter.SerializeAdapter#read(java.io.InputStream)
*/
public Object read( InputStream in ) throws Exception
{
Reader reader = new InputStreamReader( in, "UTF-8" );
char[] buffer = new char[EJConstants.BUFFERED_STREAM_SIZE];
char[] result = null;
char[] tmp = null;
int n = 0;
int pos = 1;
while ( -1 != (n = reader.read( buffer )) )
{
if ( result == null )
{
result = new char[n];
}
else
{
pos = result.length;
tmp = new char[pos + n];
System.arraycopy( result, 0, tmp, 0, pos - 1 );
result = tmp;
}
System.arraycopy( buffer, 0, result, pos - 1, n );
}
reader.close();
if ( result != null )
{
return new String( result );
}
else
{
return null;
}
}
/*
* (non-Javadoc)
*
* @see de.netseeker.ejoe.adapter.SerializeAdapter#write(java.lang.Object, java.io.OutputStream)
*/
public void write( Object obj, OutputStream out ) throws Exception
{
Writer writer = new OutputStreamWriter( out, "UTF-8" );
writer.write( obj.toString() );
writer.close();
}
/*
* (non-Javadoc)
*
* @see de.netseeker.ejoe.adapter.BaseAdapter#getContentType()
*/
public String getContentType()
{
return "text/plain";
}
}