tools/etfw/org.eclipse.ptp.etfw.tau.papiselect/src/org/eclipse/ptp/etfw/tau/papiselect/papic/PapiInfoParser.java

package org.eclipse.ptp.etfw.tau.papiselect.papic;

import java.util.Stack;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

public class PapiInfoParser extends DefaultHandler{
	/*Tag strings*/
	private static final String eventinfo="eventinfo";
	//private static final String hardware="hardware";
	private static final String component="component";
	private static final String eventset="eventset";
	private static final String event="event";
	private static final String modifier="modifier";
	
	/*Attribute strings*/
	private static final String index="index";
	private static final String type="type";
	private static final String id="id";
	private static final String name="name";
	private static final String desc="desc";
	private static final String code="code";
	
	//private Stack<StringBuffer> content = new Stack<StringBuffer>();
	private Stack<String> tagStack = new Stack<String>();
	//private Tree tree;
	private EventTree et;
	private Component curComp;
	private EventSet curESet;
	private Event curEvent;
	
//	public void characters(char[] chars, int start, int len)
//	{
//		((StringBuffer)content.peek()).append(chars, start, len);
//	}
	
	public EventTree getEventTree(){
		return et;
	}
	
	public void reset(){
		
		et=null;
		curComp=null;
		curESet=null;
		curEvent=null;
	}
	
	private static String getAttribute(String name, Attributes atts)
	{
		int repdex = atts.getIndex(name);
		if(repdex>=0)
		{
			return atts.getValue(repdex);
		}
		else
			return null;
	}
	
	private static int getIntAttribute(String name, Attributes atts){
		String str=getAttribute(name,atts);
		if(str==null)
		{
			return -1;
		}
		return(Integer.parseInt(str));
	}
	
//	private static boolean getBooleanAttribute(String name, boolean defValue, Attributes atts)
//	{
//		String boolAtt=getAttribute(name,atts);
//		if(boolAtt==null)
//			return defValue;
//		if(boolAtt.toLowerCase().equals("true"))
//			return true;
//		else if(boolAtt.toLowerCase().equals("false"))
//			return false;
//		return defValue;
//	}
	
	public void startElement(String uri, String localName, String eName, Attributes atts) throws SAXException {
		eName=eName.toLowerCase();
		//System.out.println(eName);
		if(eName.equals(eventinfo))
		{
//			if(tree==null)
//			{return;}
			et=new EventTree();
		}
		else if(eName.equals(component))
		{
			if(et==null)
			{return;}
			curComp=new Component(et,getIntAttribute(index,atts),getAttribute(type,atts),getAttribute(id,atts));
			et.addChild(curComp);
		}
		else if(eName.equals(eventset))
		{
			if(curComp==null)
			{return;}
			curESet=new EventSet(curComp,getAttribute(type,atts));
			curComp.addChild(curESet);
		}
		else if(eName.equals(event))
		{
			if(curESet==null){return;}
			curEvent=new Event(curESet,getIntAttribute(index,atts),getAttribute(name,atts),getAttribute(desc,atts),getAttribute(code,atts));
			curESet.addChild(curEvent);
			curESet.fullSet.add(new Integer(curEvent.index));
		}
		else if(eName.equals(modifier))
		{
			if(curEvent==null)
			{return;}
			//Modifier mod=
				curEvent.addChild(new Modifier(curEvent,getAttribute(name,atts),getAttribute(desc,atts),getAttribute(code,atts)));
		}

		tagStack.push(eName.toLowerCase());

	}
	
	public void endElement(String uri, String localName, String eName) throws SAXException {
		eName = eName.toLowerCase();
		
		if(eName.equals(eventinfo))
		{
			//et=new EventTree();//TODO: Manage sequential parsings better?
		}
		else if(eName.equals(component))
		{
			curComp=null;
//			if(et!=null)
//			{
//				curComp=new Component(getIntAttribute(index,atts),getAttribute(type,atts),getAttribute(id,atts));
//				et.compList.add(curComp);
//			}
		}
		else if(eName.equals(eventset))
		{
			curESet=null;
//			if(curComp!=null){
//				curESet=new EventSet(getAttribute(type,atts));
//				curComp.eventSetList.add(curESet);
//			}
		}
		else if(eName.equals(event))
		{
			curEvent=null;
//			if(curESet!=null){
//				curEvent=new Event(getAttribute(name,atts),getAttribute(desc,atts),getAttribute(code,atts));
//				curESet.eventList.add(curEvent);
//			}
		}
//		else if(eName.equals(modifier))
//		{
//			if(curEvent!=null){
//				Modifier mod=new Modifier(getAttribute(name,atts),getAttribute(desc,atts),getAttribute(code,atts));
//				curEvent.modifierList.add(mod);
//			}
//		}
		
		tagStack.pop();
	}
	
}