org.jblogcms.core.config.PersistenceContext.java Source code

Introduction

Here is the source code for org.jblogcms.core.config.PersistenceContext.java

Source

/*
 * Copyright 2016 Victor Andreenko
 *
 * 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 org.jblogcms.core.config;

import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;
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.init.DataSourceInitializer;
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.annotation.EnableTransactionManagement;

import javax.annotation.Resource;
import javax.sql.DataSource;
import java.util.Properties;

/**
 * @author Victor Andreenko
 */
@Configuration
@EnableJpaRepositories(basePackages = { "org.jblogcms.core.*.repository" })
@ComponentScan(basePackages = { "org.jblogcms.core.*.model", "org.jblogcms.core.*.repository" })
@EnableTransactionManagement
@PropertySource("classpath:application.properties")
public class PersistenceContext {

    private static final String[] PACKAGES_TO_SCAN = { "org.jblogcms.core.account.model",
            "org.jblogcms.core.blog.model", "org.jblogcms.core.comment.model", "org.jblogcms.core.common.model",
            "org.jblogcms.core.post.model", "org.jblogcms.core.security.model" };

    private static final String DATABASE_DRIVER = "database.driver";
    private static final String DATABASE_PASSWORD = "database.password";
    private static final String DATABASE_URL = "database.url";
    private static final String DATABASE_USERNAME = "database.username";

    private static final String HIBERNATE_DIALECT = "hibernate.dialect";
    private static final String HIBERNATE_FORMAT_SQL = "hibernate.format_sql";
    private static final String HIBERNATE_HBM2DDL_AUTO = "hibernate.hbm2ddl.auto";
    private static final String HIBERNATE_EJB_NAMING_STRATEGY = "hibernate.ejb.naming_strategy";
    private static final String HIBERNATE_SHOW_SQL = "hibernate.show_sql";

    @Resource
    private Environment environment;

    @Bean(destroyMethod = "close")
    DataSource dataSource() {
        HikariConfig dataSourceConfig = new HikariConfig();
        dataSourceConfig.setDriverClassName(environment.getRequiredProperty(DATABASE_DRIVER));
        dataSourceConfig.setJdbcUrl(environment.getRequiredProperty(DATABASE_URL));
        dataSourceConfig.setUsername(environment.getRequiredProperty(DATABASE_USERNAME));
        dataSourceConfig.setPassword(environment.getRequiredProperty(DATABASE_PASSWORD));

        return new HikariDataSource(dataSourceConfig);
    }

    @Bean
    public JpaTransactionManager transactionManager() {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());

        return transactionManager;
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();

        entityManagerFactoryBean.setDataSource(dataSource());
        entityManagerFactoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
        entityManagerFactoryBean.setPackagesToScan(PACKAGES_TO_SCAN);

        Properties jpaProperties = new Properties();
        jpaProperties.put(HIBERNATE_DIALECT, environment.getRequiredProperty(HIBERNATE_DIALECT));
        jpaProperties.put(HIBERNATE_FORMAT_SQL, environment.getRequiredProperty(HIBERNATE_FORMAT_SQL));
        jpaProperties.put(HIBERNATE_HBM2DDL_AUTO, environment.getRequiredProperty(HIBERNATE_HBM2DDL_AUTO));
        jpaProperties.put(HIBERNATE_EJB_NAMING_STRATEGY,
                environment.getRequiredProperty(HIBERNATE_EJB_NAMING_STRATEGY));
        jpaProperties.put(HIBERNATE_SHOW_SQL, environment.getRequiredProperty(HIBERNATE_SHOW_SQL));

        entityManagerFactoryBean.setJpaProperties(jpaProperties);

        return entityManagerFactoryBean;
    }

    @Bean
    public DataSourceInitializer databasePopulator() {
        ResourceDatabasePopulator populator = new ResourceDatabasePopulator();
        populator.addScript(
                new ClassPathResource("org/springframework/social/connect/jdbc/JdbcUsersConnectionRepository.sql"));
        populator.setContinueOnError(true);

        DataSourceInitializer initializer = new DataSourceInitializer();
        initializer.setDatabasePopulator(populator);
        initializer.setDataSource(dataSource());

        return initializer;
    }

}