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.graph.local;
  
  import java.text.NumberFormat;
  
  public class GraphTaskAttemptID {
  
    protected static final String ATTEMPT = "attempt";
  
    protected static final char SEPARATOR = '_';
  
    protected static final NumberFormat taskidFormat = NumberFormat.getInstance();
  
    private String jobId;
  
    private int taskId;
  
    private int attempt;
  
    static {
      taskidFormat.setGroupingUsed(false);
      taskidFormat.setMinimumIntegerDigits(6);
    }
  
    /**
     * 构造TaskAttemptID
     *
     * @param jobId
     *     作业一次运行的唯一标识
     * @param taskId
     *     Task序号，从0计起
     * @param attempt
     *     重试次数
     */
    public GraphTaskAttemptID(String jobId, int taskId, int attempt) {
      super();
      this.jobId = jobId;
      this.taskId = taskId;
      this.attempt = attempt;
    }
  
    /**
     * 获取作业一次运行的唯一标识
     *
     * @return 作业一次运行的唯一标识
     */
    public String getJobId() {
      return jobId;
    }
  
    /**
     * 获取Task序号
     *
     * @return Task序号
     */
    public int getTaskId() {
      return taskId;
    }
  
    /**
     * 获取重试次数
     *
     * @return 重试次数
     */
    public int getAttempt() {
      return attempt;
    }
  
    @Override
    public String toString() {
      StringBuilder builder = new StringBuilder(ATTEMPT);
      builder.append("_" + jobId);
      builder.append("_" + taskidFormat.format(taskId));
      builder.append("_" + attempt);
      return builder.toString();
    }
  
  }
  