/*
 * $Id: XmlTestRecorder.java,v 1.3 2002/07/18 16:46:30 etoh Exp $
 */

package tdoclet;

import java.io.*;
import java.util.*;
import java.text.*;

import javax.xml.parsers.*;

import org.xml.sax.*;
import org.w3c.dom.*;

/**
 * �ǥե���Ȥη����Υƥ��ȷ�̥ե�����β�ᤪ��ӽ��Ϥ�Ԥ��ޤ�.
 *
 * @version 0.1
 * @author Taichirou Etoh
 */
public class XmlTestRecorder {

	private String fileName;

	/** �������� */
	private List updateHistory = new ArrayList();

	public XmlTestRecorder(String fileName) {

		this.fileName = fileName;

	}

	/**
	 * ��¸�Υƥ��ȷ�̤���Ϥ��������˼����ߤޤ�.
	 */
	public Collection parse() throws ParseException {

		Collection record = new ArrayList();

		//* ���ꤷ���ե����뤬�ʤ���ж��Υƥ��ȷ�̤�꥿���󤹤�
		File file = new File(fileName);
		if (!file.exists()) return record;

		Document document = null;
		try {

			document = Xmls.newDocument(file);

		} catch (ParserConfigurationException e) {

			return record;

		} catch (SAXException e) {

			return record;

		} catch (IOException e) {

			return record;

		}

		if (document == null) return record;
		Element top = document.getDocumentElement();

		//* ��¸�� XML �ե������깹����Ͽ���������
		NodeList updateList = top.getElementsByTagName("update");
		for (int i = 0; i < updateList.getLength(); i++) {

			Element update = (Element)updateList.item(i);
			updateHistory.add(((Text)update.getFirstChild()).getData());

		}

		//* ��¸�� XML �ե�������ƥ��ȹ��ܤΥꥹ�Ȥ�������ơ��֥�˳�Ǽ����
		NodeList itemList = top.getElementsByTagName("item");
		for (int i = 0; i < itemList.getLength(); i++) {

			Element item = (Element)itemList.item(i);
			TestItem testItem = TestItem.createTestItemFromElement(item);
			record.add(testItem);

		}

		return record;

	}

	/**
	 * ����������֤��ޤ�.
	 */
	public List getUpdateHistory() {

		return Collections.unmodifiableList(updateHistory);

	}

}