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Source code
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,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.reef.exception.evaluator;
020
021/**
022 * The base class for exceptions thrown by REEF libraries and services.
023 * <p>
024 * Rules of thumb for exception handling in REEF:
025 * <ul>
026 * <li>When possible, throw a subclass of ServiceException, with the following exceptions (no pun intended)</li>
027 * <li>Iterator and other standard Java interfaces neglect to declare throws
028 * clauses. Use ServiceRuntimeException when implementing such interfaces.</li>
029 * <li>If there is no good way for Task code to recover from the exception, throw
030 * (and document) a subclass of ServiceRuntimeException</li>
031 * <li>Applications with generic, catch-all error handling
032 * should catch ServiceRuntimeException and ServiceException.</li>
033 * <li>Applications with specific error handling logic (eg: ignoring/coping with a failed remote task) should catch
034 * the subclass of ServiceRuntimeException / ServiceException thrown by the library they are using.</li>
035 * </ul>
036 *
037 * @see ServiceRuntimeException
038 */
039public class ServiceException extends Exception {
040  private static final long serialVersionUID = 1L;
041
042  public ServiceException(final String s, final Throwable e) {
043    super(s, e);
044  }
045
046  public ServiceException(final String s) {
047    super(s);
048  }
049
050  public ServiceException(final Throwable e) {
051    super(e);
052  }
053
054}