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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) 2005 Joe Walnes.
* Copyright (C) 2006, 2007, 2009, 2013, 2018 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 18. March 2005 by Joe Walnes
*/
// ***** READ THIS *****
// This class will only compile with JDK 1.5.0 or above as it test Java enums.
// If you are using an earlier version of Java, just don't try to build this class. XStream should work fine without it.
package com.feilong.lib.xstream.converters.enums;
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.HierarchicalStreamReader;
import com.feilong.lib.xstream.io.HierarchicalStreamWriter;
/**
* Converter for JDK 1.5 enums. Combined with EnumMapper this also deals with polymorphic enums.
*
* @author Eric Snell
* @author Bryan Coleman
*/
public class EnumConverter implements Converter{
@Override
public boolean canConvert(Class type){
return type != null && type.isEnum() || Enum.class.isAssignableFrom(type);
}
@Override
public void marshal(Object source,HierarchicalStreamWriter writer,MarshallingContext context){
writer.setValue(((Enum) source).name());
}
@Override
@SuppressWarnings("unchecked")
public Object unmarshal(HierarchicalStreamReader reader,UnmarshallingContext context){
Class type = context.getRequiredType();
if (type.getSuperclass() != Enum.class){
type = type.getSuperclass(); // polymorphic enums
}
String name = reader.getValue();
try{
return Enum.valueOf(type, name);
}catch (IllegalArgumentException e){
// failed to find it, do a case insensitive match
for (Enum c : (Enum[]) type.getEnumConstants()){
if (c.name().equalsIgnoreCase(name)){
return c;
}
}
// all else failed
throw e;
}
}
}