-
-
Save paulodiogo/8981108 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package com.example.android; | |
import com.thoughtworks.xstream.*; | |
import com.thoughtworks.xstream.io.*; | |
import com.thoughtworks.xstream.mapper.*; | |
import com.thoughtworks.xstream.converters.*; | |
import com.thoughtworks.xstream.converters.collections.*; | |
import java.util.*; | |
/** | |
* This came from http://osdir.com/ml/java.xstream.user/2007-07/msg00079.html | |
* | |
* <b>Example:</b> | |
* <pre> | |
* xstream.registerConverter(new MyMapConverter<Object>(xstream.getMapper(), "class"); | |
* xstream.alias("preferences", Map.class); | |
* xstream.alias("preference", String.class); | |
* ArrayList response = (ArrayList)xstream.fromXML("<response><preferences><preference key=\"miao\">bau</preference><preference key=\"geova\">allah</preference></preferences></response>"); | |
* Map<String, String> map = (Map<String, String>)response.get(0); | |
* </pre> | |
*/ | |
class MyMapConverter<T> extends MapConverter { | |
private final String attributeKey; | |
public MyMapConverter(Mapper mapper, String attributeKey) { | |
super(mapper); | |
//the value of this attribute will be used as key of the map | |
this.attributeKey = attributeKey; | |
} | |
public boolean canConvert(Class type) { | |
return type == HashMap.class; | |
} | |
public void marshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) { | |
Map<String, T> map = (Map<String, T>) source; | |
for (Map.Entry<String, T> entry : map.entrySet()) { | |
T value = entry.getValue(); | |
writer.startNode(mapper().serializedClass(value.getClass())); | |
writer.addAttribute(attributename, entry.getKey()); | |
context.convertAnother(value); | |
writer.endNode(); | |
} | |
} | |
public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) { | |
Map<String, T> map = new HashMap<String, T>(); | |
populateStringMap(reader, context, map); | |
return map; | |
} | |
protected void populateStringMap(HierarchicalStreamReader reader, UnmarshallingContext context, Map<String, T> map) { | |
while (reader.hasMoreChildren()) { | |
reader.moveDown(); | |
String key = reader.getAttribute(attributeKey); | |
T value = (T) readItem(reader, context, map); | |
reader.moveUp(); | |
map.put(key, value); | |
} | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment