001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hdfs.server.balancer;
019
020/**
021 * Exit status - The values associated with each exit status is directly mapped
022 * to the process's exit code in command line.
023 */
024public enum ExitStatus {
025  SUCCESS(0),
026  IN_PROGRESS(1),
027  ALREADY_RUNNING(-1),
028  NO_MOVE_BLOCK(-2),
029  NO_MOVE_PROGRESS(-3),
030  IO_EXCEPTION(-4),
031  ILLEGAL_ARGUMENTS(-5),
032  INTERRUPTED(-6),
033  UNFINALIZED_UPGRADE(-7);
034
035  private final int code;
036
037  private ExitStatus(int code) {
038    this.code = code;
039  }
040  
041  /** @return the command line exit code. */
042  public int getExitCode() {
043    return code;
044  }
045}