content: /**
   * 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 com.alibaba.jstorm.common.metric.old;
  
  import com.alibaba.jstorm.common.metric.old.operator.convert.DefaultConvertor;
  import com.alibaba.jstorm.common.metric.old.operator.merger.TpsMerger;
  import com.alibaba.jstorm.common.metric.old.operator.updater.AddUpdater;
  import com.alibaba.jstorm.common.metric.old.window.Metric;
  
  /**
   * Meter is used to compute tps
   * 
   * Attention: 1.
   * 
   * @author zhongyan.feng
   * 
   */
  public class Meter extends Metric<Double, Double> {
      private static final long serialVersionUID = -1362345159511508074L;
  
      public Meter() {
          defaultValue = 0.0d;
          updater = new AddUpdater<Double>();
          merger = new TpsMerger();
          convertor = new DefaultConvertor<Double>();
  
          init();
      }
  
      public void update() {
          update(Double.valueOf(1));
      }
  
  }
  