TimedStopwatch.java

/*
 * Copyright 2014 Netflix, Inc.
 *
 * 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 com.netflix.servo.monitor;

import com.netflix.servo.util.Preconditions;

import java.util.concurrent.TimeUnit;

/**
 * Stopwatch that will also record to a timer.
 */
public class TimedStopwatch extends BasicStopwatch {
  private final Timer timer;

  /**
   * Create a new instance with the specified timer.
   */
  public TimedStopwatch(Timer timer) {
    Preconditions.checkNotNull(timer, "timer");
    this.timer = timer;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void stop() {
    super.stop();
    timer.record(getDuration(), TimeUnit.NANOSECONDS);
  }
}