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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, 2008, 2009, 2013, 2014, 2016 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 09. April 2005 by Joe Walnes
*/
package com.feilong.lib.xstream.mapper;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Pattern;
import com.feilong.lib.xstream.core.util.FastField;
/**
* Mapper that allows a field of a specific class to be replaced with a shorter alias.
*
* @author Joe Walnes
*/
public class FieldAliasingMapper extends MapperWrapper{
protected final Map fieldToAliasMap = new HashMap();
protected final Map aliasToFieldMap = new HashMap();
private final ElementIgnoringMapper elementIgnoringMapper;
public FieldAliasingMapper(Mapper wrapped){
super(wrapped);
elementIgnoringMapper = (ElementIgnoringMapper) lookupMapperOfType(ElementIgnoringMapper.class);
}
public void addFieldAlias(String alias,Class type,String fieldName){
fieldToAliasMap.put(key(type, fieldName), alias);
aliasToFieldMap.put(key(type, alias), fieldName);
}
/**
* @deprecated As of 1.4.9 use {@link ElementIgnoringMapper#addElementsToIgnore(Pattern)}.
*/
@Deprecated
public void addFieldsToIgnore(final Pattern pattern){
if (elementIgnoringMapper != null){
elementIgnoringMapper.addElementsToIgnore(pattern);
}
}
/**
* @deprecated As of 1.4.9 use {@link ElementIgnoringMapper#omitField(Class, String)}.
*/
@Deprecated
public void omitField(Class definedIn,String fieldName){
if (elementIgnoringMapper != null){
elementIgnoringMapper.omitField(definedIn, fieldName);
}
}
private Object key(Class type,String name){
return new FastField(type, name);
}
@Override
public String serializedMember(Class type,String memberName){
String alias = getMember(type, memberName, fieldToAliasMap);
if (alias == null){
return super.serializedMember(type, memberName);
}else{
return alias;
}
}
@Override
public String realMember(Class type,String serialized){
String real = getMember(type, serialized, aliasToFieldMap);
if (real == null){
return super.realMember(type, serialized);
}else{
return real;
}
}
private String getMember(Class type,String name,Map map){
String member = null;
for (Class declaringType = type; member == null && declaringType != Object.class
&& declaringType != null; declaringType = declaringType.getSuperclass()){
member = (String) map.get(key(declaringType, name));
}
return member;
}
}