-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
AbstractJobRepositoryFactoryBean.java
228 lines (201 loc) · 8.4 KB
/
AbstractJobRepositoryFactoryBean.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
/*
* Copyright 2006-2021 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.batch.core.repository.support;
import java.util.Properties;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.aop.support.NameMatchMethodPointcut;
import org.springframework.batch.core.repository.JobRepository;
import org.springframework.batch.core.repository.dao.ExecutionContextDao;
import org.springframework.batch.core.repository.dao.JobExecutionDao;
import org.springframework.batch.core.repository.dao.JobInstanceDao;
import org.springframework.batch.core.repository.dao.StepExecutionDao;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.TransactionManager;
import org.springframework.transaction.annotation.Isolation;
import org.springframework.transaction.interceptor.NameMatchTransactionAttributeSource;
import org.springframework.transaction.interceptor.TransactionInterceptor;
import org.springframework.transaction.support.TransactionSynchronizationManager;
import org.springframework.util.Assert;
/**
* A {@link FactoryBean} that automates the creation of a
* {@link SimpleJobRepository}. Declares abstract methods for providing DAO
* object implementations.
*
* @see JobRepositoryFactoryBean
*
* @author Ben Hale
* @author Lucas Ward
* @author Robert Kasanicky
* @author Mahmoud Ben Hassine
*/
public abstract class AbstractJobRepositoryFactoryBean implements FactoryBean<JobRepository>, InitializingBean {
private PlatformTransactionManager transactionManager;
private ProxyFactory proxyFactory;
private String isolationLevelForCreate = DEFAULT_ISOLATION_LEVEL;
private boolean validateTransactionState = true;
private static final String ISOLATION_LEVEL_PREFIX = "ISOLATION_";
/**
* Default value for isolation level in create* method.
*/
private static final String DEFAULT_ISOLATION_LEVEL = ISOLATION_LEVEL_PREFIX + "SERIALIZABLE";
/**
* @return fully configured {@link JobInstanceDao} implementation.
*
* @throws Exception thrown if error occurs creating JobInstanceDao.
*/
protected abstract JobInstanceDao createJobInstanceDao() throws Exception;
/**
* @return fully configured {@link JobExecutionDao} implementation.
*
* @throws Exception thrown if error occurs creating JobExecutionDao.
*/
protected abstract JobExecutionDao createJobExecutionDao() throws Exception;
/**
* @return fully configured {@link StepExecutionDao} implementation.
*
* @throws Exception thrown if error occurs creating StepExecutionDao.
*/
protected abstract StepExecutionDao createStepExecutionDao() throws Exception;
/**
* @return fully configured {@link ExecutionContextDao} implementation.
*
* @throws Exception thrown if error occurs creating ExecutionContextDao.
*/
protected abstract ExecutionContextDao createExecutionContextDao() throws Exception;
/**
* The type of object to be returned from {@link #getObject()}.
*
* @return JobRepository.class
* @see org.springframework.beans.factory.FactoryBean#getObjectType()
*/
@Override
public Class<JobRepository> getObjectType() {
return JobRepository.class;
}
@Override
public boolean isSingleton() {
return true;
}
/**
* Flag to determine whether to check for an existing transaction when a
* JobExecution is created. Defaults to true because it is usually a
* mistake, and leads to problems with restartability and also to deadlocks
* in multi-threaded steps.
*
* @param validateTransactionState the flag to set
*/
public void setValidateTransactionState(boolean validateTransactionState) {
this.validateTransactionState = validateTransactionState;
}
/**
* public setter for the isolation level to be used for the transaction when
* job execution entities are initially created. The default is
* ISOLATION_SERIALIZABLE, which prevents accidental concurrent execution of
* the same job (ISOLATION_REPEATABLE_READ would work as well).
*
* @param isolationLevelForCreate the isolation level name to set
*
* @see SimpleJobRepository#createJobExecution(String,
* org.springframework.batch.core.JobParameters)
*/
public void setIsolationLevelForCreate(String isolationLevelForCreate) {
this.isolationLevelForCreate = isolationLevelForCreate;
}
/**
* public setter for the isolation level to be used for the transaction when
* job execution entities are initially created. The default is
* ISOLATION_SERIALIZABLE, which prevents accidental concurrent execution of
* the same job (ISOLATION_REPEATABLE_READ would work as well).
*
* @param isolationLevelForCreate the isolation level to set
*
* @see SimpleJobRepository#createJobExecution(String,
* org.springframework.batch.core.JobParameters)
*/
public void setIsolationLevelForCreate(Isolation isolationLevelForCreate) {
this.setIsolationLevelForCreate(ISOLATION_LEVEL_PREFIX + isolationLevelForCreate.name());
}
/**
* Public setter for the {@link PlatformTransactionManager}.
* @param transactionManager the transactionManager to set
*/
public void setTransactionManager(PlatformTransactionManager transactionManager) {
this.transactionManager = transactionManager;
}
/**
* The transaction manager used in this factory. Useful to inject into steps
* and jobs, to ensure that they are using the same instance.
*
* @return the transactionManager
*/
public PlatformTransactionManager getTransactionManager() {
return transactionManager;
}
private void initializeProxy() throws Exception {
if (proxyFactory == null) {
proxyFactory = new ProxyFactory();
Properties transactionAttributes = new Properties();
transactionAttributes.setProperty("create*", "PROPAGATION_REQUIRES_NEW," + isolationLevelForCreate);
transactionAttributes.setProperty("getLastJobExecution*", "PROPAGATION_REQUIRES_NEW," + isolationLevelForCreate);
transactionAttributes.setProperty("*", "PROPAGATION_REQUIRED");
NameMatchTransactionAttributeSource transactionAttributeSource = new NameMatchTransactionAttributeSource();
transactionAttributeSource.setProperties(transactionAttributes);
TransactionInterceptor advice = new TransactionInterceptor((TransactionManager) transactionManager, transactionAttributeSource);
if (validateTransactionState) {
DefaultPointcutAdvisor advisor = new DefaultPointcutAdvisor(new MethodInterceptor() {
@Override
public Object invoke(MethodInvocation invocation) throws Throwable {
if (TransactionSynchronizationManager.isActualTransactionActive()) {
throw new IllegalStateException(
"Existing transaction detected in JobRepository. "
+ "Please fix this and try again (e.g. remove @Transactional annotations from client).");
}
return invocation.proceed();
}
});
NameMatchMethodPointcut pointcut = new NameMatchMethodPointcut();
pointcut.addMethodName("create*");
advisor.setPointcut(pointcut);
proxyFactory.addAdvisor(advisor);
}
proxyFactory.addAdvice(advice);
proxyFactory.setProxyTargetClass(false);
proxyFactory.addInterface(JobRepository.class);
proxyFactory.setTarget(getTarget());
}
}
@Override
public void afterPropertiesSet() throws Exception {
Assert.notNull(transactionManager, "TransactionManager must not be null.");
initializeProxy();
}
private Object getTarget() throws Exception {
return new SimpleJobRepository(createJobInstanceDao(), createJobExecutionDao(), createStepExecutionDao(),
createExecutionContextDao());
}
@Override
public JobRepository getObject() throws Exception {
if (proxyFactory == null) {
afterPropertiesSet();
}
return (JobRepository) proxyFactory.getProxy(getClass().getClassLoader());
}
}