| 1 | package org.springframework.batch.core.repository.support; |
| 2 | |
| 3 | import org.springframework.aop.framework.ProxyFactory; |
| 4 | import org.springframework.aop.support.DefaultPointcutAdvisor; |
| 5 | import org.springframework.aop.support.NameMatchMethodPointcut; |
| 6 | import org.springframework.batch.core.repository.JobRepository; |
| 7 | import org.springframework.batch.core.repository.dao.JobExecutionDao; |
| 8 | import org.springframework.batch.core.repository.dao.JobInstanceDao; |
| 9 | import org.springframework.batch.core.repository.dao.StepExecutionDao; |
| 10 | import org.springframework.batch.support.PropertiesConverter; |
| 11 | import org.springframework.beans.factory.FactoryBean; |
| 12 | import org.springframework.beans.factory.InitializingBean; |
| 13 | import org.springframework.transaction.PlatformTransactionManager; |
| 14 | import org.springframework.transaction.interceptor.TransactionInterceptor; |
| 15 | import org.springframework.util.Assert; |
| 16 | |
| 17 | /** |
| 18 | * A {@link FactoryBean} that automates the creation of a |
| 19 | * {@link SimpleJobRepository}. Declares abstract methods for providing DAO |
| 20 | * object implementations. |
| 21 | * |
| 22 | * @see JobRepositoryFactoryBean |
| 23 | * @see MapJobRepositoryFactoryBean |
| 24 | * |
| 25 | * @author Ben Hale |
| 26 | * @author Lucas Ward |
| 27 | * @author Robert Kasanicky |
| 28 | */ |
| 29 | public abstract class AbstractJobRepositoryFactoryBean implements FactoryBean, InitializingBean { |
| 30 | |
| 31 | /** |
| 32 | * Default value for isolation level in create* method. |
| 33 | */ |
| 34 | private static final String DEFAULT_ISOLATION_LEVEL = "ISOLATION_SERIALIZABLE"; |
| 35 | |
| 36 | private ProxyFactory proxyFactory; |
| 37 | |
| 38 | private String isolationLevelForCreate = DEFAULT_ISOLATION_LEVEL; |
| 39 | |
| 40 | private PlatformTransactionManager transactionManager; |
| 41 | |
| 42 | /** |
| 43 | * @return fully configured {@link JobInstanceDao} implementation. |
| 44 | */ |
| 45 | protected abstract JobInstanceDao createJobInstanceDao() throws Exception; |
| 46 | |
| 47 | /** |
| 48 | * @return fully configured {@link JobExecutionDao} implementation. |
| 49 | */ |
| 50 | protected abstract JobExecutionDao createJobExecutionDao() throws Exception; |
| 51 | |
| 52 | /** |
| 53 | * @return fully configured {@link StepExecutionDao} implementation. |
| 54 | */ |
| 55 | protected abstract StepExecutionDao createStepExecutionDao() throws Exception; |
| 56 | |
| 57 | public Object getObject() throws Exception { |
| 58 | return proxyFactory.getProxy(); |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * The type of object to be returned from {@link #getObject()}. |
| 63 | * |
| 64 | * @return JobRepository.class |
| 65 | * @see org.springframework.beans.factory.FactoryBean#getObjectType() |
| 66 | */ |
| 67 | public Class getObjectType() { |
| 68 | return JobRepository.class; |
| 69 | } |
| 70 | |
| 71 | public boolean isSingleton() { |
| 72 | return true; |
| 73 | } |
| 74 | |
| 75 | public void afterPropertiesSet() throws Exception { |
| 76 | |
| 77 | Assert.notNull(transactionManager, "TransactionManager must not be null."); |
| 78 | |
| 79 | initializeProxy(); |
| 80 | } |
| 81 | |
| 82 | protected void initializeProxy() throws Exception { |
| 83 | proxyFactory = new ProxyFactory(); |
| 84 | TransactionInterceptor advice = new TransactionInterceptor(transactionManager, PropertiesConverter |
| 85 | .stringToProperties("create*=PROPAGATION_REQUIRES_NEW," + isolationLevelForCreate |
| 86 | + "\n*=PROPAGATION_REQUIRED")); |
| 87 | DefaultPointcutAdvisor advisor = new DefaultPointcutAdvisor(advice); |
| 88 | NameMatchMethodPointcut pointcut = new NameMatchMethodPointcut(); |
| 89 | pointcut.addMethodName("*"); |
| 90 | advisor.setPointcut(pointcut); |
| 91 | proxyFactory.addAdvisor(advisor); |
| 92 | proxyFactory.setProxyTargetClass(false); |
| 93 | proxyFactory.addInterface(JobRepository.class); |
| 94 | proxyFactory.setTarget(getTarget()); |
| 95 | } |
| 96 | |
| 97 | private Object getTarget() throws Exception { |
| 98 | return new SimpleJobRepository(createJobInstanceDao(), createJobExecutionDao(), createStepExecutionDao()); |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Public setter for the {@link PlatformTransactionManager}. |
| 103 | * @param transactionManager the transactionManager to set |
| 104 | */ |
| 105 | public void setTransactionManager(PlatformTransactionManager transactionManager) { |
| 106 | this.transactionManager = transactionManager; |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Public setter for the isolation level to be used for the transaction when |
| 111 | * job execution entities are initially created. The default is |
| 112 | * ISOLATION_SERIALIZABLE, which prevents accidental concurrent execution of |
| 113 | * the same job (ISOLATION_REPEATABLE_READ would work as well). |
| 114 | * |
| 115 | * @param isolationLevelForCreate the isolation level name to set |
| 116 | * |
| 117 | * @see SimpleJobRepository#createJobExecution(org.springframework.batch.core.Job, |
| 118 | * org.springframework.batch.core.JobParameters) |
| 119 | */ |
| 120 | public void setIsolationLevelForCreate(String isolationLevelForCreate) { |
| 121 | this.isolationLevelForCreate = isolationLevelForCreate; |
| 122 | } |
| 123 | |
| 124 | } |