/*
* Copyright 2000-2006 JetBrains s.r.o.
*
* Licensed 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.
*/
package jetbrains.communicator.util;
/**
* @author Kir
*/
public class WatchDog {
private long myStarted;
private final String myName;
private final StringBuffer myBuffer = new StringBuffer(10);
public static final int SEC = 1000;
public WatchDog(String prefix) {
myName = prefix;
myStarted = System.currentTimeMillis();
watchAndReset("start");
}
public final void watch(String s) {
System.out.println(myName + ' ' + s + ": " + _diff());
}
public final void stop() {
watch("stopped");
}
public final void watchAndReset(String s) {
watch(s);
myStarted = System.currentTimeMillis();
}
private String _diff() {
long diff = diff();
myBuffer.delete(0, myBuffer.length());
if (diff >= SEC) {
long secs = diff / SEC;
myBuffer.append(secs);
myBuffer.append(" sec ");
diff -= secs * SEC;
}
myBuffer.append(diff);
myBuffer.append(" msec");
return myBuffer.toString();
}
public long diff() {
return System.currentTimeMillis() - myStarted;
}
}