com.feilong.lib.xstream.converters.reflection.XStream12FieldKeySorter Maven / Gradle / Ivy
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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) 2007, 2008, 2013 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 19.09.2007 by Joerg Schaible
*/
package com.feilong.lib.xstream.converters.reflection;
import java.util.Map;
import java.util.TreeMap;
/**
* Sort the fields in the order of XStream 1.2.x. Fields are returned in their declaration order,
* fields of base classes last.
*
* @author Jörg Schaible
* @since 1.3
*/
public class XStream12FieldKeySorter implements FieldKeySorter{
@Override
public Map sort(final Class type,final Map keyedByFieldKey){
final Map map = new TreeMap((o1,o2) -> {
final FieldKey fieldKey1 = (FieldKey) o1;
final FieldKey fieldKey2 = (FieldKey) o2;
int i = fieldKey2.getDepth() - fieldKey1.getDepth();
if (i == 0){
i = fieldKey1.getOrder() - fieldKey2.getOrder();
}
return i;
});
map.putAll(keyedByFieldKey);
keyedByFieldKey.clear();
keyedByFieldKey.putAll(map);
return keyedByFieldKey;
}
}