code: /*
   * 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.skywalking.oap.server.microbench.library.datacarrier.common;
  
  import java.io.Serializable;
  import java.util.concurrent.atomic.AtomicInteger;
  
  /**
   * This comes from PR#2874
   */
  public class AtomicRangeIntegerV2 extends Number implements Serializable {
      private static final long serialVersionUID = -4099792402691141643L;
      private AtomicInteger value;
      private int startValue;
      private int endValue;
  
      public AtomicRangeIntegerV2(int startValue, int maxValue) {
          this.value = new AtomicInteger(startValue);
          this.startValue = startValue;
          this.endValue = maxValue - 1;
      }
  
      public final int getAndIncrement() {
          int next;
          do {
              next = this.value.incrementAndGet();
              if (next > endValue && this.value.compareAndSet(next, startValue)) {
                  return endValue;
              }
          }
          while (next > endValue);
  
          return next - 1;
      }
  
      public final int get() {
          return this.value.get();
      }
  
      public int intValue() {
          return this.value.intValue();
      }
  
      public long longValue() {
          return this.value.longValue();
      }
  
      public float floatValue() {
          return this.value.floatValue();
      }
  
      public double doubleValue() {
          return this.value.doubleValue();
      }
  }
  