| /* |
| * 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.beam.runners.dataflow.worker; |
| |
| /** Indicates that the key token was invalid when data was attempted to be fetched. */ |
| public class KeyTokenInvalidException extends RuntimeException { |
| public KeyTokenInvalidException(String key) { |
| super("Unable to fetch data due to token mismatch for key " + key); |
| } |
| |
| /** Returns whether an exception was caused by a {@link KeyTokenInvalidException}. */ |
| public static boolean isKeyTokenInvalidException(Throwable t) { |
| while (t != null) { |
| if (t instanceof KeyTokenInvalidException) { |
| return true; |
| } |
| t = t.getCause(); |
| } |
| return false; |
| } |
| } |