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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) 2008 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 10. November 2008 by Joerg Schaible
*/
package com.feilong.lib.xstream.mapper;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;
/**
* Mapper that allows a package name to be replaced with an alias.
*
* @author Jörg Schaible
*/
public class PackageAliasingMapper extends MapperWrapper implements Serializable{
/**
*
*/
private static final long serialVersionUID = -6087702061292696487L;
private static final Comparator REVERSE = (o1,o2) -> ((String) o2).compareTo((String) o1);
private Map packageToName = new TreeMap(REVERSE);
protected transient Map nameToPackage = new HashMap();
public PackageAliasingMapper(final Mapper wrapped){
super(wrapped);
}
public void addPackageAlias(String name,String pkg){
if (name.length() > 0 && name.charAt(name.length() - 1) != '.'){
name += '.';
}
if (pkg.length() > 0 && pkg.charAt(pkg.length() - 1) != '.'){
pkg += '.';
}
nameToPackage.put(name, pkg);
packageToName.put(pkg, name);
}
@Override
public String serializedClass(final Class type){
final String className = type.getName();
int length = className.length();
int dot = -1;
do{
dot = className.lastIndexOf('.', length);
final String pkg = dot < 0 ? "" : className.substring(0, dot + 1);
final String alias = (String) packageToName.get(pkg);
if (alias != null){
return alias + (dot < 0 ? className : className.substring(dot + 1));
}
length = dot - 1;
}while (dot >= 0);
return super.serializedClass(type);
}
@Override
public Class realClass(String elementName){
int length = elementName.length();
int dot = -1;
do{
dot = elementName.lastIndexOf('.', length);
final String name = dot < 0 ? "" : elementName.substring(0, dot) + '.';
final String packageName = (String) nameToPackage.get(name);
if (packageName != null){
elementName = packageName + (dot < 0 ? elementName : elementName.substring(dot + 1));
break;
}
length = dot - 1;
}while (dot >= 0);
return super.realClass(elementName);
}
private void writeObject(final ObjectOutputStream out) throws IOException{
out.writeObject(new HashMap(packageToName));
}
private void readObject(final ObjectInputStream in) throws IOException,ClassNotFoundException{
packageToName = new TreeMap(REVERSE);
packageToName.putAll((Map) in.readObject());
nameToPackage = new HashMap();
for (final Iterator iter = packageToName.keySet().iterator(); iter.hasNext();){
final Object type = iter.next();
nameToPackage.put(packageToName.get(type), type);
}
}
}