/*
* 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 .
*/
/*
* Contributor ( s ) : Thomas Ball
*/
/**
* A simple class for calculating and reporting elapsed system time .
* Each timer has a start time and may have an end time . If an
* elapsed time value is requested of a timer which doesn ' t have its
* stop time set , the current system time is used .
*
* @ author Tom Ball
*/
public class ElapsedTimer {
// System times in milliseconds; see System.currentTimeMillis();
private long startTime;
private long stopTime;
/**
* Create a new timer .
*/
public ElapsedTimer() {
reset();
}
/**
* Stop the current timer ; that is , set its stopTime .
*/
public void stop() {
stopTime = System.currentTimeMillis();
}
/**
* Reset the starting time to the current system time .
*/
public final void reset() {
startTime = System.currentTimeMillis();
}
public long getElapsedMilliseconds() {
long st = (stopTime == 0 ) ? System.currentTimeMillis() : stopTime;
return st - startTime;
}
public int getElapsedSeconds() {
return (int )(getElapsedMilliseconds() / 1000 L);
}
public String toString() {
long ms = getElapsedMilliseconds();
int sec = (int )(ms / 1000 L);
int frac = (int )(ms % 1000 L);
StringBuffer sb = new StringBuffer();
sb.append(ms / 1000 L);
sb.append('.' );
sb.append(ms % 1000 L);
sb.append(" seconds" );
return sb.toString();
}
}
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