/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2008, Open Source Geospatial Foundation (OSGeo)
*
* This library 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;
* version 2.1 of the License.
*
* This library 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.
*/
package org.geotools.util;
import java.nio.charset.Charset;
import java.nio.charset.UnsupportedCharsetException;
import org.geotools.factory.Hints;
/**
* Converter for going from a String to a {@link Charset} and vice versa.
*
* @author Justin Deoliveira, The Open Planning Project
* @since 2.5
*
*
* @source $URL$
*/
public class CharsetConverterFactory implements ConverterFactory {
public Converter createConverter(Class<?> source, Class<?> target,
Hints hints) {
if ( CharSequence.class.isAssignableFrom( source ) &&
Charset.class.isAssignableFrom( target ) ) {
return new Converter() {
public <T> T convert(Object source, Class<T> target) throws Exception {
try {
return(T) Charset.forName( (String) source );
}
catch( UnsupportedCharsetException e ) {
//TODO: log this
return null;
}
}
};
}
if ( Charset.class.isAssignableFrom( source ) &&
CharSequence.class.isAssignableFrom( target ) ) {
return new Converter() {
public <T> T convert(Object source, Class<T> target) throws Exception {
return (T) ((Charset)source).toString();
}
};
}
return null;
}
}