hibernate multiple database configuration files - spring

Question

I have the database config show below file that reads from the application.properties which has information to connect to a single data base.
I want to add another similar configuration file that will allow me to connect to another database and use its session factory like the primary one I already have.
I am working on making another similar file which reads from another application properties file. However I am not sure how to wire it so that I can have multiple session factories in each of my entity classes
import java.util.Properties;
import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.hibernate4.HibernateTransactionManager;
import org.springframework.orm.hibernate4.LocalSessionFactoryBean;
import org.springframework.transaction.annotation.EnableTransactionManagement;
#Configuration
#EnableTransactionManagement
public class DatabaseConfig {
#Value("${db.driver}")
private String DB_DRIVER;
#Value("${db.password}")
private String DB_PASSWORD;
#Value("${db.url}")
private String DB_URL;
#Value("${db.username}")
private String DB_USERNAME;
#Value("${hibernate.dialect}")
private String HIBERNATE_DIALECT;
#Value("${hibernate.show_sql}")
private String HIBERNATE_SHOW_SQL;
#Value("${hibernate.hbm2ddl.auto}")
private String HIBERNATE_HBM2DDL_AUTO;
#Value("${entitymanager.packagesToScan}")
private String ENTITYMANAGER_PACKAGES_TO_SCAN;
#Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(DB_DRIVER);
dataSource.setUrl(DB_URL);
dataSource.setUsername(DB_USERNAME);
dataSource.setPassword(DB_PASSWORD);
return dataSource;
}
#Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean();
sessionFactoryBean.setDataSource(dataSource());
sessionFactoryBean.setPackagesToScan(ENTITYMANAGER_PACKAGES_TO_SCAN);
Properties hibernateProperties = new Properties();
hibernateProperties.put("hibernate.dialect", HIBERNATE_DIALECT);
hibernateProperties.put("hibernate.show_sql", HIBERNATE_SHOW_SQL);
hibernateProperties.put("hibernate.hbm2ddl.auto", HIBERNATE_HBM2DDL_AUTO);
sessionFactoryBean.setHibernateProperties(hibernateProperties);
return sessionFactoryBean;
}
#Bean
public HibernateTransactionManager transactionManager() {
HibernateTransactionManager transactionManager =
new HibernateTransactionManager();
transactionManager.setSessionFactory(sessionFactory().getObject());
return transactionManager;
}
} // class DatabaseConfig
Usage of session factory in a generic dao. I would like another session factory that can connect to another datasource.
#Repository("baseDao")
#Transactional
public class BaseDaoImpl<T extends Serializable> implements BaseDao<T> {
#Autowired
private SessionFactory sessionFactory;
private Session getSession() {
return sessionFactory.getCurrentSession();
}
...