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Spring Multi Datasource with entity manager

I am facing problem in multi data source connection with spring, one of the transaction is working, but other one is not working. please help.
***********Data Source 1 start************
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="database1.ds" />
<property name="persistenceUnitName" value="database1" />
<property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
<property name="persistenceXmlLocation" value="classpath:jpa-persistence.xml" />
</bean>
<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="ORACLE" />
<property name="showSql" value="false" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager" p:entityManagerFactory-ref="entityManagerFactory" />
***********Data Source 1 end************
***********Data Source 2 start************
<bean id="entityManagerFactory2"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="database2.ds" />
<property name="persistenceUnitName" value="database2" />
<property name="jpaVendorAdapter" ref="jpaVendorAdapter2" />
<property name="persistenceXmlLocation" value="classpath:jpa-persistence.xml" />
</bean>
<bean id="jpaVendorAdapter2
class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="ORACLE" />
<property name="showSql" value="false" />
</bean>
<bean id="transactionManager2" class="org.springframework.orm.jpa.JpaTransactionManager"
p:entityManagerFactory-ref="entityManagerFactory2" />
***********Data Source 2 end************
<context:component-scan base-package="com.wmi.lakshya" annotation-config="true" scope-resolver="org.springframework.context.annotation.Jsr330ScopeMetadataResolver"/>
<tx:annotation-driven />
<cache:annotation-driven />
Entity Manager class
#Repository
#Scope("singleton")
public class EntityManagerImpl implements EntityManagerGenerator {
#PersistenceContext(unitName = "database1",type=PersistenceContextType.EXTENDED)
private EntityManager entityManager;
#PersistenceContext(unitName = "database2",type=PersistenceContextType.EXTENDED)
private EntityManager entityManager2;
#Override
public EntityManager getEntityManager() {
try {
if (isUser1()) {
return entityManager;
}
return entityManager2;
} catch (Exception e) {
return entityManager;
}
}
}
#Transactional(value ="transactionManager")
public Query createNativeQuery(String sqlString) {
return entityManager.createNativeQuery(sqlString);
}
#Transactional(value ="transactionManager2")
public Query createNativeQuery1(String sqlString) {
return entityManager1.createNativeQuery(sqlString);
}
javax.persistence.TransactionRequiredException: Executing an
update/delete query
#Component
#Scope("prototype")
public class UserDAO extends AbstractDAO<User> {
/**
*
*/
private static final Logger LOGGER = Logger.getLogger(UserDAO.class);
/**
*
*/
protected UserDAO() {
super(User.class);
}
public void resetFailAttempts(String userName){
// em is entity manager class
em.createNativeQuery("update OMS_USER_MASTER set fail_attempts = 0 where login_id = :loginId ")
.setParameter(QueryParameters.LOGIN_ID, userName)
.executeUpdate();
}
}
Datasource is switched based on the condition, when connecting with datasource 1 is working, but not for datasource2.

Spring with two transaction managers and one within another

I have two transaction managers defined in my context file as follows
<tx:annotation-driven transaction-manager="firstTransactionManager" />
<bean id="secondDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="---" />
<property name="url" value="datasource1" />
<property name="username" value="----" />
<property name="password" value="----" />
</bean>
<bean id="firstTransactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="firstDataSource" />
<qualifier value="firstTxManager"/>
</bean>
<bean id="secondTransactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="secondDataSource" />
<qualifier value="secondTxManager"/>
</bean>
<bean id="firstDataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="---" />
<property name="url" value="datasource2" />
<property name="username" value="---" />
<property name="password" value="---" />
</bean>
And I my class definitions are as follows
#Transactional("firstTransactionManager")
public class JdbcMain {
#Autowired
private static DataSource dataSource;
public DataSource getDataSource() {
return dataSource;
}
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}
public static void main(String args[]){
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
TransactionExample example = (TransactionExample) ctx.getBean("transExample");
example.create();
}
}
And my example class is as follows:
#Transactional("secondTransactionManager")
public void create(DataSource dataSource2) {
try {
this.jdbcTemplate = new JdbcTemplate(dataSource2);
String sql = "insert into testtable values (?,?)";
getJdbcTemplate().update(sql,1,"1244343");
String marksSql="insert into testtable values (?,?)";
int i=2/0; //added to depict roll back behaviour of the transaction when exception occurs
getJdbcTemplate().update(marksSql,2,"sujay");
System.out.println("transaction committed");
} catch (RuntimeException e) {
throw e;
}
}
But the second transaction manager doesn't seem to work and the transaction is not rolled back (The first insert is executed). Can you provide me an idea.

Could not get JDBC Connection - Connection Closing Issue

On production environment I got following error.
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (The Network Adapter could not establish the connection)
When I connect through toad, it said ORA-12541 no listener error. The issue resolved after restart of linstener.
But the actual issue may be that lot of connections opened by the web application and it is not closing that. Following are my code and configuration.
I am using EcllipseLink, dbcp2 for connections
<persistence-unit name="persistance-unit" transaction-type="RESOURCE_LOCAL">
<class>com.company.model.Characteristic</class>
...
<!--more classes -->
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="eclipselink.weaving" value="false"/>
</properties>
</persistence-unit>
dbcp2 settings
<bean id="datasource" class="org.apache.commons.dbcp2.BasicDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="maxIdle" value="10" />
<property name="maxTotal" value="200" />
<property name="maxWaitMillis" value="60000" />
<property name="validationQuery" value="select 1 from dual" />
<property name="validationQueryTimeout" value="10" />
<property name="testOnBorrow" value="true" />
<property name="testWhileIdle" value="true" />
<property name="timeBetweenEvictionRunsMillis" value="30000" />
<property name="minEvictableIdleTimeMillis" value="60000" />
<property name="numTestsPerEvictionRun" value="5" />
<property name="defaultAutoCommit" value="true" />
</bean>
Connection Factory
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="persistance-unit"/>
<property name="dataSource" ref="datasource"/>
<property name="jpaVendorAdapter">
<bean id="jpaAdapter" class="org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter">
<property name="showSql" value="true"/>
<property name="database" value="ORACLE"/>
</bean>
</property>
</bean>
Transaction Management
Abstract GenericDao
public abstract class GenericDao<T> implements IGenericDao<T> {
#PersistenceContext
protected EntityManager entityManager
private Class<T> type
public GenericDao() {
Type t = getClass().getGenericSuperclass()
ParameterizedType pt = (ParameterizedType) t
type = (Class) pt.getActualTypeArguments()[0]
}
#Override
public T save(final T t) {
this.entityManager.persist(t)
return t
}
public def saveObj(def t) {
try {
this.entityManager.persist(t)
}catch(e){
log.info("Error occured: ", e)
}
return t
}
#Override
public void delete(final Object id) {
this.entityManager.remove(this.entityManager.getReference(type, id))
}
#Override
public T find(final Object id) {
return (T) this.entityManager.find(type, id)
}
#Override
public T update(final T t) {
return this.entityManager.merge(t)
}
#Override
public def executeNamedQuery(String namedQueryName, Map<String, Object> queryParams)
{
List results = null
try {
Query query = entityManager.createNamedQuery(namedQueryName)
if (queryParams) {
addPrametersToQuery(query, queryParams)
}
results = query.getResultList()
} catch (NoResultException e) {
} catch (Exception e) {
log.error("Error occured: ", e)
throw e
}
return results
}
}
Dao component using that Generic Dao
#Component("characteristicDao")
class CharacteristicDao extends GenericDao<Characteristic> implements ICharacteristicDao {
public def getCharacteristics(String name){
log.info("Entering getCharacteristics")
Characteristic characteristic = (PrmCharacteristic) executeQueryWithSingleResult("select b from Characteristic b where b.name=:name", [name:name])
log.info("Exiting getCharacteristics")
return characteristic
}
}
I use CharacteristicDao component to interact with database. Similarly I have other dao also. I have just given one example.
I use #Transactional in service for the transaction. Any master can help me please what I am doing wrong.

Spring / WebLogic - JMS message not redelivered on failure

I am using WerbLogic 10.3.5 and Spring 3.0 to implement a JMS queue. I have the following Spring configuration:
<!-- JMS Configuration -->
<bean id="paymentlistener" class="com.myproject.service.impl.PaymentListener"/>
<bean id="paymentlistenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="concurrentConsumers" value="10"/>
<property name="connectionFactory" ref="paymentConnectionFactory"/>
<property name="destination" ref="paymentQueue"/>
<property name="messageListener" ref="paymentlistener"/>
</bean>
<bean id="paymentQueue" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="jms/paymentResponseHandlerQueue"/>
<property name="jndiTemplate" ref="jndiTemplate"/>
</bean>
<bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate">
<property name="environment">
<props>
<prop key="java.naming.factory.initial">weblogic.jndi.WLInitialContextFactory</prop>
<prop key="java.naming.provider.url">t3://localhost:7001</prop>
</props>
</property>
</bean>
<bean id="paymentConnectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiTemplate" ref="jndiTemplate"/>
<property name="jndiName" value="jms/paymentResponseHandlerConnectionFactory"/>
</bean>
<bean id="jmsDestinationResolver" class="org.springframework.jms.support.destination.JndiDestinationResolver">
<property name="jndiTemplate" ref="jndiTemplate"/>
<property name="cache" value="true"/>
</bean>
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="paymentConnectionFactory"/>
<property name="destinationResolver" ref="jmsDestinationResolver"/>
<property name="defaultDestination" ref="paymentQueue"/>
<property name="sessionAcknowledgeModeName" value="DUPS_OK_ACKNOWLEDGE"/>
<property name="sessionTransacted" value="true"/>
</bean>
My message creation code looks like this:
MessageCreator messageCreator = new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
logger.debug("Session ack mode: " + session.getAcknowledgeMode());
return session.createObjectMessage(payment);
}
};
jmsTemplate.send("jms/paymentResponseHandlerQueue", messageCreator);
And my listener looks like this:
#Override
public void onMessage(Message message) { // , Session session
if (!(message instanceof ObjectMessage)) {
throw new IllegalStateException("The PaymentListener queue expects an object message");
}
ObjectMessage objectMessage = (ObjectMessage) message;
try {
logger.debug("Is Message redelivered:" + objectMessage.getJMSRedelivered ());
if (objectMessage.getObject() instanceof CreditCardPaymentDTO) {
logger.debug("Object is of type CreditCardPaymentDTO");
// The user that just logged in
CreditCardPaymentDTO payment = (CreditCardPaymentDTO) objectMessage.getObject();
otpCollectorDAO.savePayment(payment);
}
} catch (JMSException e) {
logger.error(e);
throw new RuntimeException(e);
} catch (PaymentResponseException e) {
logger.error(e);
throw new RuntimeException(e);
}
}
The message is being created correctly, and the onMessage() method of my listener is being called, but if the logic fails and I throw a RuntimeException(), the message does not get redelivered. I've tried many slight variations of the above code (eg. setting sessionAcknowledgeModeName=SESSION_TRANSACTED and explicitly rolling back the transaction), but the message is never re-queued. What is the trick to getting failed messages to redeliver?

I believe you need to set sessionTransacted to true for the DefaultMessageListenerContainer:
<bean id="paymentlistenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
...
<property name="sessionTransacted" value="true"/>
</bean>
You can find here relevant reference documentation.

Spring batch integration

I am looking for a guidance/solution with Spring batch integration. I have a directory to which external application will send xml files. My application should read the file content and move the file to another directory.
The application should be able to process the files in parallel.
Thanks in advance.

You can use Spring Integration ftp / sftp combined with Spring Batch:
1.Spring Integration Ftp Configuration :
<bean id="ftpClientFactory"
class="org.springframework.integration.ftp.session.DefaultFtpSessionFactory">
<property name="host" value="${host.name}" />
<property name="port" value="${host.port}" />
<property name="username" value="${host.username}" />
<property name="password" value="${host.password}" />
<property name="bufferSize" value="100000"/>
</bean>
<int:channel id="ftpChannel" />
<int-ftp:outbound-channel-adapter id="ftpOutbound"
channel="ftpChannel" remote-directory="/yourremotedirectory/" session-factory="ftpClientFactory" use-temporary-file-name="false" />
2.Create your reader and autowire a service to provide your items if needed :
#Scope("step")
public class MajorItemReader implements InitializingBean{
private List<YourItem> yourItems= null;
#Autowired
private MyService provider;
public YourItem read() {
if ((yourItems!= null) && (yourItems.size() != 0)) {
return yourItems.remove(0);
}
return null;
}
//Reading Items from Service
private void reloadItems() {
this.yourItems= new ArrayList<YourItem>();
// use the service to provide your Items
if (yourItems.isEmpty()) {
yourItems= null;
}
}
public MyService getProvider() {
return provider;
}
public void setProvider(MyService provider) {
this.provider = provider;
}
#Override
public void afterPropertiesSet() throws Exception {
reloadItems();
}
}
3. Create Your Own Item Processor
public class MyProcessor implements
ItemProcessor<YourItem, YourItem> {
#Override
public YourItem process(YourItem arg0) throws Exception {
// Apply any logic to your Item before transferring it to the writer
return arg0;
}
}
4. Create Your Own Writer :
public class MyWriter{
#Autowired
#Qualifier("ftpChannel")
private MessageChannel messageChannel;
public void write(YourItem pack) throws IOException {
//create your file and from your Item
File file = new File("the_created_file");
// Sending the file via Spring Integration Ftp Channel
Message<File> message = MessageBuilder.withPayload(file).build();
messageChannel.send(message);
}
5.Batch Configuration :
<bean id="dataSourcee"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="" />
<property name="url" value="" />
<property name="username" value="" />
<property name="password" value="" />
</bean>
<bean id="jobRepository"
class="org.springframework.batch.core.repository.support.JobRepositoryFactoryBean">
<property name="dataSource" ref="dataSourcee" />
<property name="transactionManager" ref="transactionManagerrr" />
<property name="databaseType" value="" />
</bean>
<bean id="transactionManagerrr"
class="org.springframework.batch.support.transaction.ResourcelessTransactionManager" />
<bean id="jobLauncher"
class="org.springframework.batch.core.launch.support.SimpleJobLauncher">
<property name="jobRepository" ref="jobRepository" />
</bean>
6.Another ApplicationContext file to Configure Your Job :
<context:annotation-config />
<bean id="provider" class="mypackage.MyService" />
<context:component-scan base-package="mypackage" />
<bean id="myReader" class="mypackage.MyReader"
<property name="provider" ref="provider" />
</bean>
<bean id="myWriter" class="mypackage.MyWriter" />
<bean id="myProcessor" class="mypackage.MyProcessor" />
<bean id="mReader"
class="org.springframework.batch.item.adapter.ItemReaderAdapter">
<property name="targetObject" ref="myReader" />
<property name="targetMethod" value="read" />
</bean>
<bean id="mProcessor"
class="org.springframework.batch.item.adapter.ItemProcessorAdapter">
<property name="targetObject" ref="myProcessor" />
<property name="targetMethod" value="process" />
</bean>
<bean id="mWriter"
class="org.springframework.batch.item.adapter.ItemWriterAdapter">
<property name="targetObject" ref="myWriter" />
<property name="targetMethod" value="write" />
</bean>
<batch:job id="myJob">
<batch:step id="step01">
<batch:tasklet>
<batch:chunk reader="mReader" writer="mWriter"
processor="mProcessor" commit-interval="1">
</batch:chunk>
</batch:tasklet>
</batch:step>
</batch:job>
<bean id="myRunScheduler" class="mypackage.MyJobLauncher" />
<task:scheduled-tasks>
<task:scheduled ref="myJobLauncher" method="run"
cron="0 0/5 * * * ?" />
<!-- this will maker the job runs every 5 minutes -->
</task:scheduled-tasks>
7.Finally Configure A launcher to launch your job :
public class MyJobLauncher {
#Autowired
private JobLauncher jobLauncher;
#Autowired
#Qualifier("myJob")
private Job job;
public void run() {
try {
String dateParam = new Date().toString();
JobParameters param = new JobParametersBuilder().addString("date",
dateParam).toJobParameters();
JobExecution execution = jobLauncher.run(job, param);
execution.stop();
} catch (Exception e) {
e.printStackTrace();
}
}