Hibernate example source code file (AbstractEntityTest.java)

This example Hibernate source code file (AbstractEntityTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

abstractentitytest, abstractenverstest, afterclassonce, auditreader, basicserviceregistryimpl, basicserviceregistryimpl, db_close_delay=-1, ejb3configuration, ejb3configuration, entitymanager, io, ioexception, ioexception, properties, properties, util

The Hibernate AbstractEntityTest.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2008-2011, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.envers.test;

import org.hibernate.cfg.Environment;
import org.hibernate.ejb.Ejb3Configuration;
import org.hibernate.envers.AuditReader;
import org.hibernate.envers.AuditReaderFactory;
import org.hibernate.envers.event.EnversIntegrator;
import org.hibernate.internal.util.config.ConfigurationHelper;
import org.hibernate.service.ServiceRegistryBuilder;
import org.hibernate.service.internal.BasicServiceRegistryImpl;
import org.hibernate.testing.AfterClassOnce;
import org.hibernate.testing.BeforeClassOnce;
import org.junit.Before;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import java.io.IOException;
import java.util.Properties;

/**
 * @author Adam Warski (adam at warski dot org)
 */
public abstract class AbstractEntityTest extends AbstractEnversTest {
    private EntityManagerFactory emf;
    private EntityManager entityManager;
    private AuditReader auditReader;
    private Ejb3Configuration cfg;
	private BasicServiceRegistryImpl serviceRegistry;
    private boolean audited;

    public abstract void configure(Ejb3Configuration cfg);

    public void addConfigurationProperties(Properties configuration) { }

    private void closeEntityManager() {
        if (entityManager != null) {
            entityManager.close();
            entityManager = null;
        }
    }

    @Before
    public void newEntityManager() {
        closeEntityManager();
        
        entityManager = emf.createEntityManager();

        if (audited) {
            auditReader = AuditReaderFactory.get(entityManager);
        }
    }

    @BeforeClassOnce
    public void init() throws IOException {
        init(true, getAuditStrategy());
    }

    protected void init(boolean audited, String auditStrategy) throws IOException {
        this.audited = audited;

        Properties configurationProperties = new Properties();
        if (!audited) {
			configurationProperties.setProperty(EnversIntegrator.AUTO_REGISTER, "false");
        }

        configurationProperties.setProperty(Environment.HBM2DDL_AUTO, "create-drop");
        configurationProperties.setProperty(Environment.DIALECT, "org.hibernate.dialect.H2Dialect");
        configurationProperties.setProperty(Environment.DRIVER, "org.h2.Driver");
        configurationProperties.setProperty(Environment.USER, "sa");

        // Separate database for each test class
        configurationProperties.setProperty(Environment.URL, "jdbc:h2:mem:" + this.getClass().getName() + ";DB_CLOSE_DELAY=-1");

        if (auditStrategy != null && !"".equals(auditStrategy)) {
            configurationProperties.setProperty("org.hibernate.envers.audit_strategy", auditStrategy);
        }

        addConfigurationProperties(configurationProperties);

        cfg = new Ejb3Configuration();
        configure(cfg);
        cfg.configure(configurationProperties);

        serviceRegistry = createServiceRegistry(cfg);

        emf = cfg.buildEntityManagerFactory( serviceRegistry );

        newEntityManager();
    }

    private BasicServiceRegistryImpl createServiceRegistry(Ejb3Configuration configuration) {
        Properties properties = new Properties();
		properties.putAll(configuration.getHibernateConfiguration().getProperties());
		ConfigurationHelper.resolvePlaceHolders(properties);
		return (BasicServiceRegistryImpl) new ServiceRegistryBuilder(properties).buildServiceRegistry();
    }

    @AfterClassOnce
    public void close() {
        closeEntityManager();
        emf.close();
		serviceRegistry.destroy();
    }

    public EntityManager getEntityManager() {
        return entityManager;
    }

    public AuditReader getAuditReader() {
        return auditReader;
    }

    public Ejb3Configuration getCfg() {
        return cfg;
    }
}