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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.
/*
* Copyright (C) 2003, 2004, 2005 Joe Walnes.
* Copyright (C) 2006, 2007 XStream Committers.
* All rights reserved.
*
* The software in this package is published under the terms of the BSD
* style license a copy of which has been included with this distribution in
* the LICENSE.txt file.
*
* Created on 01. October 2003 by Joe Walnes
*/
package com.feilong.lib.xstream.converters.extended;
import java.awt.Color;
import java.util.HashMap;
import java.util.Map;
import com.feilong.lib.xstream.converters.Converter;
import com.feilong.lib.xstream.converters.MarshallingContext;
import com.feilong.lib.xstream.converters.UnmarshallingContext;
import com.feilong.lib.xstream.io.ExtendedHierarchicalStreamWriterHelper;
import com.feilong.lib.xstream.io.HierarchicalStreamReader;
import com.feilong.lib.xstream.io.HierarchicalStreamWriter;
/**
* Converts a java.awt.Color to XML, using four nested elements:
* red, green, blue, alpha.
*
* @author Joe Walnes
*/
public class ColorConverter implements Converter{
@Override
public boolean canConvert(Class type){
// String comparison is used here because Color.class loads the class which in turns instantiates AWT,
// which is nasty if you don't want it.
return type != null && type.getName().equals("java.awt.Color");
}
@Override
public void marshal(Object source,HierarchicalStreamWriter writer,MarshallingContext context){
Color color = (Color) source;
write("red", color.getRed(), writer);
write("green", color.getGreen(), writer);
write("blue", color.getBlue(), writer);
write("alpha", color.getAlpha(), writer);
}
@Override
public Object unmarshal(HierarchicalStreamReader reader,UnmarshallingContext context){
Map elements = new HashMap();
while (reader.hasMoreChildren()){
reader.moveDown();
elements.put(reader.getNodeName(), Integer.valueOf(reader.getValue()));
reader.moveUp();
}
return new Color(
((Integer) elements.get("red")).intValue(),
((Integer) elements.get("green")).intValue(),
((Integer) elements.get("blue")).intValue(),
((Integer) elements.get("alpha")).intValue());
}
private void write(String fieldName,int value,HierarchicalStreamWriter writer){
ExtendedHierarchicalStreamWriterHelper.startNode(writer, fieldName, int.class);
writer.setValue(String.valueOf(value));
writer.endNode();
}
}