path: root/org.eclipse.mylyn.bugzilla.core/src/org/eclipse/mylyn/internal/bugzilla/core/SaxBugzillaQueryContentHandler.java

/*******************************************************************************
 * Copyright (c) 2004 - 2006 University Of British Columbia and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     University Of British Columbia - initial API and implementation
 *******************************************************************************/

package org.eclipse.mylar.internal.bugzilla.core;

import java.util.Locale;
import java.util.Set;

import org.eclipse.mylar.core.net.HtmlStreamTokenizer;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

/**
 * Parser for RDF bugzilla query results.
 * 
 * @author Rob Elves
 */
public class SaxBugzillaQueryContentHandler extends DefaultHandler {

	/** The bug id */
	private String id;

//	/** The summary of the bug */
//	private String description = "";
//
//	/** The priority of the bug */
//	private String priority = Task.PriorityLevel.getDefault().toString();
//
//	/** The state of the bug */
//	private String state = "";

	private StringBuffer characters;

//	private String repositoryUrl;

	private Set<String> bugIds;

	private int maxHits = 100;

	private int numCollected = 0;

	public SaxBugzillaQueryContentHandler(String repositoryUrl, Set<String> hits, int maxHits) {
		//this.repositoryUrl = repositoryUrl;
		this.maxHits = maxHits;
		this.bugIds = hits;
	}

	@Override
	public void characters(char[] ch, int start, int length) throws SAXException {
		characters.append(ch, start, length);
	}

	@Override
	public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
		characters = new StringBuffer();
		BugzillaReportElement tag = BugzillaReportElement.UNKNOWN;
		try {
			tag = BugzillaReportElement.valueOf(localName.trim().toUpperCase(Locale.ENGLISH));
			switch (tag) {
			case LI:
// hit = new BugzillaQueryHit();
// hit.setRepository(repositoryUrl);
// break;
			}
		} catch (RuntimeException e) {
			if (e instanceof IllegalArgumentException) {
				// ignore unrecognized tags
				return;
			}
			throw e;
		}

	}

	@Override
	public void endElement(String uri, String localName, String qName) throws SAXException {

		String parsedText = HtmlStreamTokenizer.unescape(characters.toString());

		BugzillaReportElement tag = BugzillaReportElement.UNKNOWN;
		try {
			tag = BugzillaReportElement.valueOf(localName.trim().toUpperCase(Locale.ENGLISH));
			switch (tag) {
			case ID:
				id = parsedText;
				if (numCollected < maxHits || maxHits == IBugzillaConstants.RETURN_ALL_HITS) {
					//System.err.println(">>> "+id);
					bugIds.add(id);
					numCollected++;
				} 
				break;
// // case BUG_SEVERITY:
// // severity = parsedText;
// // break;
// case PRIORITY:
// priority = parsedText;
// break;
// // case REP_PLATFORM:
// // platform = parsedText;
// // break;
// case ASSIGNED_TO:
// //hit.setOwner(parsedText);
// break;
// case BUG_STATUS:
// state = parsedText;
// break;
// // case RESOLUTION:
// // resolution = parsedText;
// // break;
// case SHORT_DESC:
// description = parsedText;
// break;
// case SHORT_SHORT_DESC:
// description = parsedText;
// break;
// case LI:
// if (numCollected < maxHits || maxHits == IBugzillaConstants.RETURN_ALL_HITS)
// {
// hit = new BugzillaQueryHit(taskList, description, priority, repositoryUrl,
// id, null, state);
// collector.accept(hit);
// numCollected++;
// } else {
// break;
// }
			}
		} catch (RuntimeException e) {
			if (e instanceof IllegalArgumentException) {
				// ignore unrecognized tags
				return;
			}
			throw e;
		}

	}
}