content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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.alibaba.nacos.config.server.utils;
  
  import java.util.concurrent.atomic.AtomicLong;
  
  /**
   * Accumulate Stat Count
   *
   * @author Nacos
   */
  public class AccumulateStatCount {
  
      final AtomicLong total = new AtomicLong(0);
      long lastStatValue = 0;
  
      public long increase() {
          return total.incrementAndGet();
      }
  
      public long stat() {
          long tmp = total.get() - lastStatValue;
          lastStatValue += tmp;
          return tmp;
      }
  }
  