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Apache Hadoop Common

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/*
 * 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.hadoop.util;

/**
 * Get the exit code of an exception.
 * Making it an interface makes
 * it possible to retrofit exit codes onto existing classes,
 * and add exit code providers under all parts of the Exception tree.
 */

public interface ExitCodeProvider {

  /**
   * Method to get the exit code.
   * @return the exit code
   */
  int getExitCode();
}