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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) 2009, 2011 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 15. August 2009 by Joerg Schaible
*/
package com.feilong.lib.xstream.io.naming;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/**
* A NameCoder that encodes and decodes names based on a map.
*
* The provided map should contain a mapping between the name of the Java type or field to the
* proper element in the target format. If a name cannot be found in the map, it is assumed not
* to be mapped at all. Note that the values of the map should be unique also, otherwise the
* decoding will produce wrong results.
*
*
* @author Jörg Schaible
* @since 1.4
*/
public class StaticNameCoder implements NameCoder{
private final Map java2Node;
private final Map java2Attribute;
private transient Map node2Java;
private transient Map attribute2Java;
/**
* Construct a StaticNameCoder.
*
* @param java2Node
* mapping of Java names to nodes
* @param java2Attribute
* mapping of Java names to attributes
* @since 1.4
*/
public StaticNameCoder(Map java2Node, Map java2Attribute){
this.java2Node = new HashMap(java2Node);
if (java2Node == java2Attribute || java2Attribute == null){
this.java2Attribute = this.java2Node;
}else{
this.java2Attribute = new HashMap(java2Attribute);
}
readResolve();
}
/**
* {@inheritDoc}
*/
@Override
public String decodeAttribute(String attributeName){
String name = (String) attribute2Java.get(attributeName);
return name == null ? attributeName : name;
}
/**
* {@inheritDoc}
*/
@Override
public String decodeNode(String nodeName){
String name = (String) node2Java.get(nodeName);
return name == null ? nodeName : name;
}
/**
* {@inheritDoc}
*/
@Override
public String encodeAttribute(String name){
String friendlyName = (String) java2Attribute.get(name);
return friendlyName == null ? name : friendlyName;
}
/**
* {@inheritDoc}
*/
@Override
public String encodeNode(String name){
String friendlyName = (String) java2Node.get(name);
return friendlyName == null ? name : friendlyName;
}
private Object readResolve(){
node2Java = invertMap(java2Node);
if (java2Node == java2Attribute){
attribute2Java = node2Java;
}else{
attribute2Java = invertMap(java2Attribute);
}
return this;
}
private Map invertMap(Map map){
Map inverseMap = new HashMap(map.size());
for (final Iterator iter = map.entrySet().iterator(); iter.hasNext();){
final Map.Entry entry = (Map.Entry) iter.next();
inverseMap.put(entry.getValue(), entry.getKey());
}
return inverseMap;
}
}