/**
*
*/
package com.sivalabs.springjsfjpa.config;
import java.util.Properties;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.core.env.Environment;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.jdbc.datasource.init.DataSourceInitializer;
import org.springframework.jdbc.datasource.init.ResourceDatabasePopulator;
import org.springframework.orm.hibernate4.HibernateExceptionTranslator;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
/**
* @author Siva
*
*/
@Configuration
@ComponentScan(basePackages="com.sivalabs.springjsfjpa")
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = { "com.sivalabs.springjsfjpa.repositories" })
@PropertySource("classpath:application.properties")
public class AppConfig
{
@Autowired
private Environment env;
@Bean
public static PropertySourcesPlaceholderConfigurer placeHolderConfigurer()
{
return new PropertySourcesPlaceholderConfigurer();
}
@Bean
public PlatformTransactionManager transactionManager(DataSource dataSource)
{
EntityManagerFactory factory = entityManagerFactory(dataSource).getObject();
return new JpaTransactionManager(factory);
}
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource)
{
LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
vendorAdapter.setGenerateDdl(Boolean.TRUE);
vendorAdapter.setShowSql(Boolean.TRUE);
factory.setDataSource(dataSource);
factory.setJpaVendorAdapter(vendorAdapter);
factory.setPackagesToScan("com.sivalabs.springjsfjpa.entities");
Properties jpaProperties = new Properties();
jpaProperties.put("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
factory.setJpaProperties(jpaProperties);
factory.afterPropertiesSet();
factory.setLoadTimeWeaver(new InstrumentationLoadTimeWeaver());
return factory;
}
@Bean
public HibernateExceptionTranslator hibernateExceptionTranslator()
{
return new HibernateExceptionTranslator();
}
@Bean
public DataSourceInitializer dataSourceInitializer(DataSource dataSource)
{
DataSourceInitializer dataSourceInitializer = new DataSourceInitializer();
String dbInitializationEnabled = env.resolvePlaceholders("${jdbc.init-db}");
dataSourceInitializer.setEnabled(Boolean.parseBoolean(dbInitializationEnabled));
dataSourceInitializer.setDataSource(dataSource);
ResourceDatabasePopulator databasePopulator = new ResourceDatabasePopulator();
String dbInitScriptLocation = env.resolvePlaceholders("${jdbc.initLocation}");
if(StringUtils.isNotEmpty(dbInitScriptLocation))
{
databasePopulator.setScripts(new Resource[]{
new ClassPathResource(dbInitScriptLocation)
});
}
dataSourceInitializer.setDatabasePopulator(databasePopulator);
return dataSourceInitializer;
}
@Bean
public DataSource dataSource()
{
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(env.resolvePlaceholders("${jdbc.driverClassName}"));
dataSource.setUrl(env.resolvePlaceholders("${jdbc.url}"));
dataSource.setUsername(env.resolvePlaceholders("${jdbc.username}"));
dataSource.setPassword(env.resolvePlaceholders("${jdbc.password}"));
return dataSource;
}
}