/*******************************************************************************
 * Copyright (c) 2000, 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.core.tests.harness;

/**
 * The timer class used by performance tests.
 */
class PerformanceTimer {
	private String fName;
	private long fElapsedTime;
	private long fStartTime;

	/**
	 * 
	 */
	public PerformanceTimer(String name) {
		fName = name;
		fElapsedTime = 0;
		fStartTime = 0;
	}

	/**
	 * Return the elapsed time.
	 */
	public long getElapsedTime() {
		return fElapsedTime;
	}

	/**
	 * Return the timer name.
	 */
	public String getName() {
		return fName;
	}

	/**
	 * Start the timer.
	 */
	public void startTiming() {
		fStartTime = System.currentTimeMillis();
	}

	/**
	 * Stop the timer, add the elapsed time to the total.
	 */
	public void stopTiming() {
		if (fStartTime == 0)
			return;
		long timeNow = System.currentTimeMillis();
		fElapsedTime += (timeNow - fStartTime);
		fStartTime = 0;
	}
}