| 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.core.repository.dao; |
| 18 | |
| 19 | import java.util.Map; |
| 20 | |
| 21 | import org.apache.commons.lang.SerializationUtils; |
| 22 | import org.springframework.batch.core.JobExecution; |
| 23 | import org.springframework.batch.core.StepExecution; |
| 24 | import org.springframework.batch.item.ExecutionContext; |
| 25 | import org.springframework.batch.support.transaction.TransactionAwareProxyFactory; |
| 26 | |
| 27 | /** |
| 28 | * In-memory implementation of {@link ExecutionContextDao} backed by static |
| 29 | * maps. |
| 30 | * |
| 31 | * @author Robert Kasanicky |
| 32 | */ |
| 33 | public class MapExecutionContextDao implements ExecutionContextDao { |
| 34 | |
| 35 | private static Map<Long, ExecutionContext> contextsByStepExecutionId = TransactionAwareProxyFactory |
| 36 | .createTransactionalMap(); |
| 37 | |
| 38 | private static Map<Long, ExecutionContext> contextsByJobExecutionId = TransactionAwareProxyFactory |
| 39 | .createTransactionalMap(); |
| 40 | |
| 41 | public static void clear() { |
| 42 | contextsByJobExecutionId.clear(); |
| 43 | contextsByStepExecutionId.clear(); |
| 44 | } |
| 45 | |
| 46 | private static ExecutionContext copy(ExecutionContext original) { |
| 47 | return (ExecutionContext) SerializationUtils.deserialize(SerializationUtils.serialize(original)); |
| 48 | } |
| 49 | |
| 50 | public ExecutionContext getExecutionContext(StepExecution stepExecution) { |
| 51 | return copy(contextsByStepExecutionId.get(stepExecution.getId())); |
| 52 | } |
| 53 | |
| 54 | public void updateExecutionContext(StepExecution stepExecution) { |
| 55 | contextsByStepExecutionId.put(stepExecution.getId(), copy(stepExecution.getExecutionContext())); |
| 56 | } |
| 57 | |
| 58 | public ExecutionContext getExecutionContext(JobExecution jobExecution) { |
| 59 | return copy(contextsByJobExecutionId.get(jobExecution.getId())); |
| 60 | } |
| 61 | |
| 62 | public void updateExecutionContext(JobExecution jobExecution) { |
| 63 | contextsByJobExecutionId.put(jobExecution.getId(), copy(jobExecution.getExecutionContext())); |
| 64 | } |
| 65 | |
| 66 | public void saveExecutionContext(JobExecution jobExecution) { |
| 67 | updateExecutionContext(jobExecution); |
| 68 | } |
| 69 | |
| 70 | public void saveExecutionContext(StepExecution stepExecution) { |
| 71 | updateExecutionContext(stepExecution); |
| 72 | } |
| 73 | |
| 74 | } |