// 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 // 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 com.cloud.utils; public class Profiler { private Long startTickInMs; private Long stopTickInMs; public Profiler() { startTickInMs = null; stopTickInMs = null; } public long start() { startTickInMs = System.currentTimeMillis(); return startTickInMs.longValue(); } public long stop() { stopTickInMs = System.currentTimeMillis(); return stopTickInMs.longValue(); } public long getDuration() { if(startTickInMs != null && stopTickInMs != null) return stopTickInMs.longValue() - startTickInMs.longValue(); return -1; } public boolean isStarted() { return startTickInMs != null; } public boolean isStopped() { return stopTickInMs != null; } public String toString() { if(startTickInMs == null) return "Not Started"; if(stopTickInMs == null) return "Started but not stopped"; return "Done. Duration: " + getDuration() + "ms"; } }