blob: e858a4f780f3c1363de7ba46166f4eeb786d6808 [file] [log] [blame]
/*
* 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.
*/
package org.apache.accumulo.core.util;
import java.util.EnumMap;
public class StopWatch<K extends Enum<K>> {
EnumMap<K,Long> startTime;
EnumMap<K,Long> totalTime;
public StopWatch(Class<K> k) {
startTime = new EnumMap<>(k);
totalTime = new EnumMap<>(k);
}
public synchronized void start(K timer) {
if (startTime.containsKey(timer)) {
throw new IllegalStateException(timer + " already started");
}
startTime.put(timer, System.currentTimeMillis());
}
public synchronized void stop(K timer) {
Long st = startTime.get(timer);
if (st == null) {
throw new IllegalStateException(timer + " not started");
}
Long existingTime = totalTime.get(timer);
if (existingTime == null)
existingTime = 0L;
totalTime.put(timer, existingTime + (System.currentTimeMillis() - st));
startTime.remove(timer);
}
public synchronized long get(K timer) {
Long existingTime = totalTime.get(timer);
if (existingTime == null)
existingTime = 0L;
return existingTime;
}
public synchronized double getSecs(K timer) {
Long existingTime = totalTime.get(timer);
if (existingTime == null)
existingTime = 0L;
return existingTime / 1000.0;
}
}