Initialize multiple databases in Spring

Question

I\'m using AbstractRoutingDatasource to route between databases in runtime. In real condition on the informix database everything works just fine.

For tests I create

Answer 1

After a lot research in the last two days I found a solution to initialize all datasources. I created a method to create and initialize the local H2 databases using the SchemaExport.class of hibernate. Since I only need the local db's for testing, I call the method for each DatabaseEnvirement in a @Before cucumber method.

public void createDatabase(DatabaseEnvironment environment)
throws Exception
{
    // load hibernate configuration from hibernate.cfg.xml in classpath
    Configuration configuration = new Configuration().configure();
    MetadataSources metadata =
    new MetadataSources(new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build());

    ClassPathScanningCandidateComponentProvider scanner = new ClassPathScanningCandidateComponentProvider(true);
    scanner.addIncludeFilter(new AnnotationTypeFilter(Entity.class));

    for (BeanDefinition def : scanner.findCandidateComponents(MarkEntity.class.getPackage().getName()))
    {
        metadata.addAnnotatedClass(Class.forName(def.getBeanClassName()));
    }

    Connection connection = DriverManager.getConnection("jdbc:h2:mem:test-" + environment.name().toLowerCase(), "sa", "");

    SchemaExport export = new SchemaExport((MetadataImplementor) metadata.buildMetadata(), connection);
    export.create(true, true);
}


@Before
public void beforeTest()
    throws Exception
{
    // initialise databases
    for (DatabaseEnvironment env : DatabaseEnvironment.values())
    {
        createDatabase(env);
    }
}

and this is how my hibernate.cfg.xml looks like:

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>

        <property name="dialect">org.hibernate.dialect.H2Dialect</property>

        <property name="show_sql">true</property>

        <property name="hbm2ddl.auto">create-drop</property>

    </session-factory>
</hibernate-configuration>