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
019 package org.apache.hadoop.yarn.state;
020
021 import org.apache.hadoop.classification.InterfaceAudience.Public;
022 import org.apache.hadoop.classification.InterfaceStability.Evolving;
023 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
024
025 @Public
026 @Evolving
027 public class InvalidStateTransitonException extends YarnRuntimeException {
028
029 private static final long serialVersionUID = 8610511635996283691L;
030
031 private Enum<?> currentState;
032 private Enum<?> event;
033
034 public InvalidStateTransitonException(Enum<?> currentState, Enum<?> event) {
035 super("Invalid event: " + event + " at " + currentState);
036 this.currentState = currentState;
037 this.event = event;
038 }
039
040 public Enum<?> getCurrentState() {
041 return currentState;
042 }
043
044 public Enum<?> getEvent() {
045 return event;
046 }
047
048 }