| /** |
| * 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.curator; |
| |
| import org.apache.curator.drivers.TracerDriver; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Utility to time a method or portion of code |
| */ |
| public class TimeTrace |
| { |
| private final String name; |
| private final TracerDriver driver; |
| private final long startTimeNanos = System.nanoTime(); |
| |
| /** |
| * Create and start a timer |
| * |
| * @param name name of the event |
| * @param driver driver |
| */ |
| public TimeTrace(String name, TracerDriver driver) |
| { |
| this.name = name; |
| this.driver = driver; |
| } |
| |
| /** |
| * Record the elapsed time |
| */ |
| public void commit() |
| { |
| long elapsed = System.nanoTime() - startTimeNanos; |
| driver.addTrace(name, elapsed, TimeUnit.NANOSECONDS); |
| } |
| } |