| 1 | /* |
| 2 | * Copyright 2006-2007 the original author or authors. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.springframework.batch.retry.policy; |
| 18 | |
| 19 | import org.springframework.batch.retry.ExhaustedRetryException; |
| 20 | import org.springframework.batch.retry.RetryContext; |
| 21 | import org.springframework.batch.retry.RetryPolicy; |
| 22 | |
| 23 | /** |
| 24 | * Base class for "normal" retry policies: those that operate in the context of |
| 25 | * a callback that is called repeatedly in a loop until it succeeds, or the |
| 26 | * policy decides to terminate. There is no need for such policies to store |
| 27 | * state outside the context. |
| 28 | * |
| 29 | * @see RetryPolicy#handleRetryExhausted(RetryContext) |
| 30 | * @see AbstractStatefulRetryPolicy |
| 31 | * |
| 32 | * @author Dave Syer |
| 33 | * |
| 34 | */ |
| 35 | public abstract class AbstractStatelessRetryPolicy implements RetryPolicy { |
| 36 | |
| 37 | /** |
| 38 | * Just returns the negative of {@link RetryPolicy#canRetry(RetryContext)}, |
| 39 | * i.e. if we cannot retry then the exception should be thrown. |
| 40 | * |
| 41 | * @see org.springframework.batch.retry.RetryPolicy#shouldRethrow(org.springframework.batch.retry.RetryContext) |
| 42 | */ |
| 43 | public boolean shouldRethrow(RetryContext context) { |
| 44 | return !canRetry(context); |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * Throw an exception. |
| 49 | * |
| 50 | * @see org.springframework.batch.retry.RetryPolicy#handleRetryExhausted(org.springframework.batch.retry.RetryContext) |
| 51 | */ |
| 52 | public Object handleRetryExhausted(RetryContext context) throws Exception, ExhaustedRetryException { |
| 53 | throw new ExhaustedRetryException("Retry exhausted after last attempt with no recovery path.", context |
| 54 | .getLastThrowable()); |
| 55 | } |
| 56 | |
| 57 | } |