AnAlternativeWriter.java

import com.thoughtworks.xstream.io.HierarchicalStreamWriter; 
import java.io.PrintWriter; 
 
/** 
 * This XStream writer allows objects to be serialized to an alternative  
 * indentation based syntax, rather than XML. 
 * 
 * DISCLAIMER: This class is provided as an example for how to create your 
 * own HierarchicalStreamWriter in XStream... 
 * IT IS BY NO MEANS A COMPLETE IMPLEMENTATION! 
 *
 * See http://joe.truemesh.com/blog/000479.html
 * 
 * @author Joe Walnes 
 */ 
public class AnAlternativeWriter implements HierarchicalStreamWriter { 
 
    private int indent; 
    private final PrintWriter out; 
 
    public AnAlternativeWriter(PrintWriter out) { 
        this.out = out; 
    } 
 
    public void startNode(String name) { 
        if (indent > 0) { 
            out.println(); 
        } 
        for (int i = 0; i < indent; i++) { 
            out.print("  "); 
        } 
        out.print(name); 
        indent++; 
    } 
 
    public void addAttribute(String name, String value) { 
        out.print(" [" + name + "=" + value + "]"); 
    } 
 
    public void setValue(String text) { 
        out.print(" = " + text);  
        // note, this does not correctly escape dodgy chars 
    } 
 
    public void endNode() { 
        indent--; 
        if (indent == 0) { 
            out.flush(); 
        } 
    } 
 
}