com.oasisdigital.sdre.ApplicationConfig.java Source code

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Here is the source code for com.oasisdigital.sdre.ApplicationConfig.java

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/*
 * Copyright 2012-2013 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.oasisdigital.sdre;

import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.ComponentScan.Filter;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.Database;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.stereotype.Service;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

/**
 * Spring JavaConfig configuration class to setup a Spring container and infrastructure components like a
 * {@link DataSource}, a {@link EntityManagerFactory} and a {@link PlatformTransactionManager}.
 * 
 * @author Oliver Gierke
 */
@Configuration
@ComponentScan(includeFilters = @Filter(Service.class), useDefaultFilters = false)
@EnableAsync
@EnableAspectJAutoProxy
@EnableJpaRepositories
@EnableTransactionManagement
class ApplicationConfig {

    /**
     * Bootstraps an in-memory HSQL database.
     * 
     * @return
     * @see http 
     *      ://static.springsource.org/spring/docs/3.1.x/spring-framework-reference/html/jdbc.html#jdbc-embedded-database
     *      -support
     */
    @Bean
    public DataSource dataSource() {
        DriverManagerDataSource ds = new DriverManagerDataSource();
        ds.setDriverClassName("org.hsqldb.jdbcDriver");
        ds.setUrl("jdbc:hsqldb:file:OD-test-db");
        ds.setUsername("sa");
        ds.setPassword("");
        return ds;
    }

    /**
     * Sets up a {@link LocalContainerEntityManagerFactoryBean} to use Hibernate. Activates picking up entities from the
     * project's base package.
     * 
     * @return
     */
    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {

        HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
        vendorAdapter.setDatabase(Database.HSQL);
        vendorAdapter.setGenerateDdl(true);

        LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
        factory.setJpaVendorAdapter(vendorAdapter);
        factory.setPackagesToScan(getClass().getPackage().getName());
        factory.setDataSource(dataSource());

        return factory;
    }

    @Bean
    public PlatformTransactionManager transactionManager() {
        return new JpaTransactionManager();
    }
}