com.ylw.template.model.ModelConfig.java Source code

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/*
 * This file is part of
 *
 * Copyright (C) 2014-2015 The YLW-Java-Validation-Framework 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.ylw.template.model;

import java.sql.SQLException;
import java.util.Collections;
import java.util.Map;

import javax.sql.DataSource;

import org.hibernate.envers.strategy.ValidityAuditStrategy;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.envers.repository.support.EnversRevisionRepositoryFactoryBean;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
import org.springframework.orm.jpa.AbstractEntityManagerFactoryBean;
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.transaction.PlatformTransactionManager;

@Configuration
@EnableJpaRepositories(repositoryFactoryBeanClass = EnversRevisionRepositoryFactoryBean.class)
public class ModelConfig {

    @Bean
    public DataSource dataSource() throws SQLException {
        return new EmbeddedDatabaseBuilder().setType(EmbeddedDatabaseType.H2).build();
    }

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

    @Bean
    public AbstractEntityManagerFactoryBean entityManagerFactory() throws SQLException {

        HibernateJpaVendorAdapter jpaVendorAdapter = new HibernateJpaVendorAdapter();
        jpaVendorAdapter.setDatabase(Database.H2);
        jpaVendorAdapter.setGenerateDdl(true);

        LocalContainerEntityManagerFactoryBean bean = new LocalContainerEntityManagerFactoryBean();
        bean.setJpaVendorAdapter(jpaVendorAdapter);
        bean.setPackagesToScan(ModelConfig.class.getPackage().getName());
        bean.setDataSource(dataSource());
        bean.setJpaPropertyMap(jpaProperties());

        return bean;
    }

    private Map<String, String> jpaProperties() {
        return Collections.singletonMap("org.hibernate.envers.audit_strategy",
                ValidityAuditStrategy.class.getName());
    }

}