org.mingle.pear.config.DataAccessJpaConfig.java Source code

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Here is the source code for org.mingle.pear.config.DataAccessJpaConfig.java

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/*
 * Copyright 2012 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 org.mingle.pear.config;

import org.apache.commons.dbcp2.BasicDataSource;
import org.mingle.pear.properties.PropertiesDatabase;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jmx.export.annotation.ManagedResource;
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;

import javax.inject.Inject;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import java.util.Collections;

/**
 * ??
 *
 * @author mingle
 */
@Configuration
@EnableTransactionManagement
@ManagedResource(description = "DataSource Manager.")
public class DataAccessJpaConfig {
    @Inject
    private PropertiesDatabase propDatabase;

    @Bean
    public DataSource dataSource() {
        BasicDataSource dataSource = new BasicDataSource();
        dataSource.setDriverClassName(propDatabase.getDriverClassName());
        dataSource.setUrl(propDatabase.getUrl());
        dataSource.setUsername(propDatabase.getUsername());
        dataSource.setPassword(propDatabase.getPassword());
        dataSource.setInitialSize(5);
        dataSource.setTestOnBorrow(true);
        dataSource.setTestOnReturn(true);
        dataSource.setTestWhileIdle(true);
        dataSource.setTimeBetweenEvictionRunsMillis(1800000L);
        dataSource.setNumTestsPerEvictionRun(3);
        dataSource.setMinEvictableIdleTimeMillis(1800000L);
        return dataSource;
    }

    @Bean
    public PlatformTransactionManager transactionManagerJpa(EntityManagerFactory entityManagerFactory) {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(entityManagerFactory);
        return transactionManager;
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        LocalContainerEntityManagerFactoryBean entityManagerFactory = new LocalContainerEntityManagerFactoryBean();
        entityManagerFactory.setDataSource(dataSource());
        entityManagerFactory.setPersistenceUnitName("persistenceUnit");
        entityManagerFactory.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
        entityManagerFactory
                .setJpaPropertyMap(Collections.singletonMap("hibernate.session_factory_name", "sessionFactory"));
        return entityManagerFactory;
    }

}