/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2011, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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 software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.jboss.as.test.integration.jpa.hibernate;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import javax.naming.InitialContext;
import javax.naming.NameClassPair;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.jboss.arquillian.container.test.api.Deployment;
import org.jboss.arquillian.junit.Arquillian;
import org.jboss.arquillian.test.api.ArquillianResource;
import org.jboss.shrinkwrap.api.Archive;
import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.jboss.shrinkwrap.api.asset.StringAsset;
import org.jboss.shrinkwrap.api.spec.JavaArchive;
import org.junit.Test;
import org.junit.runner.RunWith;

/**
 * Hibernate session factory tests
 *
 *
 * @author Scott Marlow
 */
@RunWith(Arquillian.class)
public class SessionFactoryTestCase {

    private static final String ARCHIVE_NAME = "jpa_sessionfactory";

    private static final String persistence_xml =
        "<?xml version=\"1.0\" encoding=\"UTF-8\"?> " +
            "<persistence xmlns=\"http://java.sun.com/xml/ns/persistence\" version=\"1.0\">" +
            "  <persistence-unit name=\"mypc\">" +
            "    <description>Persistence Unit." +
            "    </description>" +
            "  <jta-data-source>java:jboss/datasources/ExampleDS</jta-data-source>" +
            "<properties> <property name=\"hibernate.hbm2ddl.auto\" value=\"create-drop\"/>" +
            "<property name=\"hibernate.session_factory_name\" value=\"modelSessionFactory\" />" +
            "</properties>" +
            "  </persistence-unit>" +
            "</persistence>";

    @Deployment
    public static Archive<?> deploy() {

        JavaArchive jar = ShrinkWrap.create(JavaArchive.class, ARCHIVE_NAME + ".jar");
        jar.addClasses(SessionFactoryTestCase.class,
            Employee.class,
            SFSB1.class,
            SFSBHibernateSession.class,
            SFSBHibernateSessionFactory.class
        );

        jar.addAsResource(new StringAsset(persistence_xml), "META-INF/persistence.xml");
        return jar;
    }

    @ArquillianResource
    private InitialContext iniCtx;

    protected <T> T lookup(String beanName, Class<T> interfaceType) throws NamingException {
        return interfaceType.cast(iniCtx.lookup("java:global/" + ARCHIVE_NAME + "/" + beanName + "!" + interfaceType.getName()));
    }

    protected <T> T rawLookup(String name, Class<T> interfaceType) throws NamingException {
        try {
            return interfaceType.cast(iniCtx.lookup(name));

        } catch (NamingException e) {
            dumpJndi("");
            throw e;
        }
    }

    private void dumpJndi(String s) {
        try {
            dumpTreeEntry(iniCtx.list(s), s);
        } catch (NamingException ignore) {
        }
    }

    private void dumpTreeEntry(NamingEnumeration<NameClassPair> list, String s) throws NamingException {
        System.out.println("\ndump " + s);
        while (list.hasMore()) {
            NameClassPair ncp = list.next();
            System.out.println(ncp.toString());
            if (s.length() == 0) {
                dumpJndi(ncp.getName());
            } else {
                dumpJndi(s + "/" + ncp.getName());
            }
        }
    }


    // test that we didn't break the Hibernate hibernate.session_factory_name (bind Hibernate session factory to
    // specified jndi name) functionality.
    @Test
    public void testHibernateSessionFactoryName() throws Exception {
        SFSB1 sfsb1 = lookup("SFSB1", SFSB1.class);
        sfsb1.createEmployee("Sally","1 home street", 1);

        // check if we can look up the Hibernate session factory that should of been bound because of
        // the hibernate.session_factory_name was specified in the properties (in peristence.xml above).
        SessionFactory hibernateSessionFactory = rawLookup("modelSessionFactory",SessionFactory.class);
        assertNotNull("jndi lookup of hibernate.session_factory_name should return HibernateSessionFactory", hibernateSessionFactory);

        Session session = hibernateSessionFactory.openSession();
        Employee emp = (Employee)session.get(Employee.class,1);
        assertTrue("name read from hibernate session is Sally", "Sally".equals(emp.getName()));
    }

    // Test that an extended Persistence context can be injected into a Hibernate Session
    // We use extended persistence context, otherwise the Hibernate session will be closed after each transaction and
    // the assert test would fail (due to lazy loading of the Employee entity.
    // Using extended persistence context allows the hibernate session to stay open long enough for the lazy fetch.
    @Test
    public void testInjectPCIntoHibernateSession() throws Exception {
        SFSBHibernateSession sfsbHibernateSession = lookup("SFSBHibernateSession",SFSBHibernateSession.class);
        sfsbHibernateSession.createEmployee("Molly", "2 apple way", 2);

        Employee emp = sfsbHibernateSession.getEmployee(2);
        assertTrue("name read from hibernate session is Molly", "Molly".equals(emp.getName()));
    }

    // Test that a Persistence unit can be injected into a Hibernate Session factory
    @Test
    public void testInjectPUIntoHibernateSessionFactory() throws Exception {
        SFSBHibernateSessionFactory sfsbHibernateSessionFactory =
            lookup("SFSBHibernateSessionFactory",SFSBHibernateSessionFactory.class);
        sfsbHibernateSessionFactory.createEmployee("Sharon", "3 beach ave", 3);

        Employee emp = sfsbHibernateSessionFactory.getEmployee(3);
        assertTrue("name read from hibernate session is Sharon", "Sharon".equals(emp.getName()));
    }

}
