ExampleSpringConfiguration.java

package io.vertx.examples.spring.context;

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.core.env.Environment;
import org.springframework.core.io.ClassPathResource;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.jdbc.datasource.init.DatabasePopulator;
import org.springframework.jdbc.datasource.init.DatabasePopulatorUtils;
import org.springframework.jdbc.datasource.init.ResourceDatabasePopulator;
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 javax.sql.DataSource;
import java.util.Properties;

/**
 * Simple Java Spring configuration to be used for the Spring example application. This configuration is mainly
 * composed of a database configuration and initial population via the script "products.sql" of the database for
 * querying by our Spring service bean.
 *
 * The Spring service bean and repository are scanned for via @EnableJpaRepositories and @ComponentScan annotations
 */
@Configuration
@EnableJpaRepositories(basePackages = {"io.vertx.examples.spring.repository"})
@PropertySource(value = { "classpath:application.properties" })
@ComponentScan("io.vertx.examples.spring.service")
public class ExampleSpringConfiguration {

  @Autowired
  private Environment env;

  @Bean
  @Autowired
  public DataSource dataSource(DatabasePopulator populator) {
    final DriverManagerDataSource dataSource = new DriverManagerDataSource();
    dataSource.setDriverClassName(env.getProperty("jdbc.driverClassName"));
    dataSource.setUrl(env.getProperty("jdbc.url"));
    dataSource.setUsername(env.getProperty("jdbc.username"));
    dataSource.setPassword(env.getProperty("jdbc.password"));
    DatabasePopulatorUtils.execute(populator, dataSource);
    return dataSource;
  }

  @Bean
  @Autowired
  public LocalContainerEntityManagerFactoryBean entityManagerFactory(final DataSource dataSource) {
    final LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
    factory.setDataSource(dataSource);
    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    vendorAdapter.setGenerateDdl(Boolean.TRUE); vendorAdapter.setShowSql(Boolean.TRUE);
    factory.setDataSource(dataSource);
    factory.setJpaVendorAdapter(vendorAdapter);
    factory.setPackagesToScan("io.vertx.examples.spring.entity");
    Properties jpaProperties = new Properties();
    jpaProperties.put("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
    jpaProperties.put("hibernate.show_sql", env.getProperty("hibernate.show_sql"));
    factory.setJpaProperties(jpaProperties);
    return factory;
  }

  @Bean
  @Autowired
  public PlatformTransactionManager transactionManager(LocalContainerEntityManagerFactoryBean entityManagerFactory) {
    return new JpaTransactionManager(entityManagerFactory.getObject());
  }

  @Bean
  @Autowired
  public DatabasePopulator databasePopulator() {
    final ResourceDatabasePopulator populator = new ResourceDatabasePopulator();
    populator.setContinueOnError(false);
    populator.addScript(new ClassPathResource("products.sql"));
    return populator;
  }

}