| /* |
| * 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; |
| } |
| |
| } |