| /******************************************************************************* |
| * Copyright (c) 2004, 2006 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.html.core.tests.utils; |
| |
| import com.ibm.icu.text.DateFormat; |
| import com.ibm.icu.text.SimpleDateFormat; |
| import java.util.Calendar; |
| import java.util.Date; |
| |
| /** |
| * @author davidw |
| * |
| * This class provides one timestamp per VM run. |
| * (Technically, per class loading.) |
| */ |
| public class TimestampUtil { |
| |
| private static Date timestamp = null; |
| private static DateFormat shortFormat = new SimpleDateFormat("yyyy'-'MM'-'dd"); |
| // private static DateFormat longFormat = new SimpleDateFormat("yyyy'-'MM'-'dd'-'kk'-'mm'-'ss"); |
| |
| private static String nowShort = null; |
| |
| public static String timestamp() { |
| |
| if (TimestampUtil.nowShort == null) { |
| TimestampUtil.nowShort = shortFormat.format(ensureTimestamp()); |
| } |
| return TimestampUtil.nowShort; |
| } |
| |
| protected static Date ensureTimestamp() { |
| // just calculate 'timestamp' once per class loading, |
| // so this 'timestamp' remains the same during |
| // entire run. |
| if (TimestampUtil.timestamp == null) { |
| Calendar calendar = Calendar.getInstance(); |
| TimestampUtil.timestamp = calendar.getTime(); |
| } |
| return TimestampUtil.timestamp; |
| } |
| |
| } |