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 019package org.apache.hadoop.yarn.state; 020 021import org.apache.hadoop.classification.InterfaceAudience.Public; 022import org.apache.hadoop.classification.InterfaceStability.Evolving; 023import org.apache.hadoop.yarn.exceptions.YarnRuntimeException; 024 025@Public 026@Evolving 027public 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}