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.utils;
  
  import java.io.Serializable;
  import java.util.concurrent.atomic.AtomicLong;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class TpsCounter implements Serializable {
      
      private static final long serialVersionUID = 2177944366059817622L;
      private AtomicLong        total            = new AtomicLong(0);
      private AtomicLong        times            = new AtomicLong(0);
      private AtomicLong        values           = new AtomicLong(0);
      
      private IntervalCheck intervalCheck;
      
      private final String id;
      private final Logger LOG;
      
      public TpsCounter() {
          this("", TpsCounter.class);
      }
      
      public TpsCounter(String id) {
          this(id, TpsCounter.class);
      }
      
      public TpsCounter(Class tclass) {
          this("", tclass);
      }
      
      public TpsCounter(String id, Class tclass) {
          this.id = id;
          this.LOG = LoggerFactory.getLogger(tclass);
          
          intervalCheck = new IntervalCheck();
          intervalCheck.setInterval(60);
      }
      
      public Double count(long value) {
          long totalValue = total.incrementAndGet();
          long timesValue = times.incrementAndGet();
          long v = values.addAndGet(value);
          
          Double pass = intervalCheck.checkAndGet();
          if (pass != null) {
              times.set(0);
              values.set(0);
              
              Double tps = timesValue / pass;
              
              StringBuilder sb = new StringBuilder();
              sb.append(id);
              sb.append(", tps:" + tps);
              sb.append(", avg:" + ((double) v) / timesValue);
              sb.append(", total:" + totalValue);
              LOG.info(sb.toString());
              
              return tps;
          }
          
          return null;
      }
      
      public Double count() {
          return count(1L);
      }
      
      public void cleanup() {
          LOG.info(id + ", total:" + total);
      }
      
      public IntervalCheck getIntervalCheck() {
          return intervalCheck;
      }
  }
  