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     */
018    package 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     */
024    public 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    
034      private final int code;
035    
036      private ExitStatus(int code) {
037        this.code = code;
038      }
039      
040      /** @return the command line exit code. */
041      public int getExitCode() {
042        return code;
043      }
044    }