package org.apache.commons.jcs.utils.timing;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/**
* This is a simple timer utility.
*/
public class ElapsedTimer
{
/** display suffix describing the unit of measure. */
private static final String SUFFIX = "ms.";
/**
* Sets the start time when created.
*/
private long timeStamp = System.currentTimeMillis();
/**
* Gets the time elapsed between the start time and now. The start time is reset to now.
* Subsequent calls will get the time between then and now.
* <p>
* @return the elapsed time
*/
public long getElapsedTime()
{
long now = System.currentTimeMillis();
long elapsed = now - timeStamp;
timeStamp = now;
return elapsed;
}
/**
* Returns the elapsed time with the display suffix.
* <p>
* @return formatted elapsed Time
*/
public String getElapsedTimeString()
{
return String.valueOf( getElapsedTime() ) + SUFFIX;
}
}