I am discovering actually Spring and I am able to setup some jobs. Now, I would like to save my imported datas in a database using Hibernate/JPA and I keep getting this error :
14:46:43.500 [main] ERROR o.s.b.core.step.AbstractStep - Encountered an error executing the step javax.persistence.TransactionRequiredException: no transaction is in progress
I see that the problem is with the transaction. Here is my spring java config for the entityManager and the transactionManager :
@Configuration
public class PersistenceSpringConfig implements EnvironmentAware
{
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() throws Exception
{
// Initializes the entity manager
LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
factoryBean.setPersistenceUnitName(PERSISTENCE_UNIT_NAME);
factoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
factoryBean.setDataSource(dataSource());
// Scans the database model
factoryBean.setPackagesToScan(EntiteJuridiqueJPA.class.getPackage().getName());
// Defines the Hibernate properties
Properties jpaProperties = new Properties();
jpaProperties.setProperty("hibernate.show_sql", "false");
jpaProperties.setProperty("hibernate.format_sql", "false");
String connectionURL = "jdbc:h2:file:" + getDatabaseLocation();
jpaProperties.setProperty("hibernate.connection.url", connectionURL);
jpaProperties.setProperty("hibernate.connection.username", "sa");
jpaProperties.setProperty("hibernate.connection.driver_class", "org.h2.Driver");
jpaProperties.setProperty("hibernate.dialect", H2Dialect.class.getName());
jpaProperties.setProperty("hibernate.hbm2ddl.auto", "create");
jpaProperties.setProperty("hibernate.hbm2ddl.import_files_sql_extractor", "org.hibernate.tool.hbm2ddl.MultipleLinesSqlCommandExtractor");
jpaProperties.setProperty("hibernate.hbm2ddl.import_files",
"org/springframework/batch/core/schema-drop-h2.sql,org/springframework/batch/core/schema-h2.sql");
factoryBean.setJpaProperties(jpaProperties);
return factoryBean;
}
@Bean
public PlatformTransactionManager transactionManager2() throws Exception
{
EntityManagerFactory object = entityManagerFactory().getObject();
JpaTransactionManager jpaTransactionManager = new JpaTransactionManager(object);
return jpaTransactionManager;
}
I am using the JpaItemWriter to store the datas in the database :
@Bean
public ItemWriter<EntiteJuridiqueJPA> writer()
{
JpaItemWriter<EntiteJuridiqueJPA> writer = new JpaItemWriter<EntiteJuridiqueJPA>();
writer.setEntityManagerFactory(entityManagerFactory.getObject());
return writer;
}
This is the code that causes the exception : javax.persistence.TransactionRequiredException: no transaction is in progress
Any idea to how to solve this problem?
[Edit] I am putting also the Job definition and the step definition. All my Spring configuration is written in Java.
@Configuration
@EnableBatchProcessing
@Import(PersistenceSpringConfig.class)
public class BatchSpringConfig
{
@Autowired
private JobBuilderFactory jobBuilders;
@Autowired
private StepBuilderFactory stepBuilders;
@Autowired
private DataSource dataSource;
@Autowired
private LocalContainerEntityManagerFactoryBean entityManagerFactory;
@Bean
public Step step()
{
return stepBuilders.get("step").<EntiteJuridique, EntiteJuridiqueJPA> chunk(5).reader(cvsReader(null))
.processor(processor()).writer(writer()).listener(processListener()).build();
}
@Bean
@StepScope
public FlatFileItemReader<EntiteJuridique> cvsReader(@Value("#{jobParameters[input]}") String input)
{
FlatFileItemReader<EntiteJuridique> flatFileReader = new FlatFileItemReader<EntiteJuridique>();
flatFileReader.setLineMapper(lineMapper());
flatFileReader.setResource(new ClassPathResource(input));
return flatFileReader;
}
@Bean
public LineMapper<EntiteJuridique> lineMapper()
{
DefaultLineMapper<EntiteJuridique> lineMapper = new DefaultLineMapper<EntiteJuridique>();
DelimitedLineTokenizer lineTokenizer = new DelimitedLineTokenizer();
lineTokenizer.setDelimiter(";");
lineTokenizer.setNames(new String[] { "MEGA_ENTITE", "PORTEFEUILLE", "MEGA_ENTITE", "Libellé" });
BeanWrapperFieldSetMapper<EntiteJuridique> fieldSetMapper = new BeanWrapperFieldSetMapper<EntiteJuridique>();
fieldSetMapper.setTargetType(EntiteJuridique.class);
lineMapper.setLineTokenizer(lineTokenizer);
lineMapper.setFieldSetMapper(fieldSetMapper);
return lineMapper;
}
@Bean
public Job dataInitializer()
{
return jobBuilders.get("dataInitializer").listener(protocolListener()).start(step()).build();
}
@Bean
public ItemProcessor<EntiteJuridique, EntiteJuridiqueJPA> processor()
{
return new EntiteJuridiqueProcessor();
}
@Bean
public ItemWriter<EntiteJuridiqueJPA> writer()
{
JpaItemWriter<EntiteJuridiqueJPA> writer = new JpaItemWriter<EntiteJuridiqueJPA>();
writer.setEntityManagerFactory(entityManagerFactory.getObject());
return writer;
// return new EntiteJuridiqueWriter();
}
@Bean
public ProtocolListener protocolListener()
{
return new ProtocolListener();
}
@Bean
public CSVProcessListener processListener()
{
return new CSVProcessListener();
}
@Bean
public PlatformTransactionManager transactionManager2() throws Exception
{
EntityManagerFactory object = entityManagerFactory.getObject();
JpaTransactionManager jpaTransactionManager = new JpaTransactionManager(object);
return jpaTransactionManager;
}
[EDIT] I am still stuck with this problem. I have followed the suggestions of @Sean Patrick Floyd and @bellabax by setting a transaction manager for the stepBuilders, but I still get the same exception. I have tested my entityManager independtly of spring-batch and I am able to store any data in the database.
But, when using the same entity manager with spring batch, I have this exception.
Anyone can give more insights how transactions are managed within spring batch? Thx for your help?
