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.aliyun.odps.table.write;
  
  import com.aliyun.odps.table.utils.Preconditions;
  
  /**
   * A writer attempt id that is unique to this writer attempt.
   */
  public class WriterAttemptId {
  
      private final int attemptNumber;
  
      public static WriterAttemptId of(int attemptNumber) {
          return new WriterAttemptId(attemptNumber);
      }
  
      public WriterAttemptId(int attemptNumber) {
          Preconditions.checkArgument(attemptNumber >= 0, "Attempt number must be a non-negative number.");
          this.attemptNumber = attemptNumber;
      }
  
      /**
       * How many times this writer has been attempted.
       */
      public int getAttemptNumber() {
          return attemptNumber;
      }
  }
  