package net.sourceforge.phpeclipse.wiki.xml;

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;

import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.DomDriver;

public class XStreamManager {

  public static String toXML(Page page) {
    XStream xstream = new XStream(new DomDriver());
    xstream.alias("page", Page.class);
    xstream.changeDefaultConverter(new PageConverter(xstream.getClassMapper(), "revision"));
    xstream.alias("revision", Revision.class);
    return xstream.toXML(page);
  }
  
  public static Page fromXML(String xmlString) {
    XStream xstream = new XStream(new DomDriver());
    xstream.alias("page", Page.class);
    xstream.changeDefaultConverter(new PageConverter(xstream.getClassMapper(), "revision"));
    xstream.alias("revision", Revision.class);
    return (Page) xstream.fromXML(xmlString);
  }
  
  public static Page fromXML(Reader xmlReader) {
    XStream xstream = new XStream(new DomDriver());
    xstream.alias("page", Page.class);
    xstream.changeDefaultConverter(new PageConverter(xstream.getClassMapper(), "revision"));
    xstream.alias("revision", Revision.class);
    return (Page) xstream.fromXML(xmlReader);
  }
  
  public static Page fromXML(InputStream iStream) {
    InputStreamReader sReader = new InputStreamReader(iStream);
    return fromXML(sReader);
  }

  public static void main(String[] args) {
    Page page = new Page("20050129", "title", "body1");
    page.add(new Revision("20050130", "body2", "Joe"));
    page.add(new Revision("20050131", "body3"));
    String xml = toXML(page);
    System.out.println(xml);

    Page newXML = (Page) fromXML(xml);
    System.out.println(newXML);
  }
}