/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.openjpa.persistence.meta;

import java.util.Collection;

import org.apache.openjpa.enhance.PCRegistry;
import org.apache.openjpa.meta.ClassMetaData;
import org.apache.openjpa.meta.MetaDataRepository;
import org.apache.openjpa.meta.QueryMetaData;
import org.apache.openjpa.persistence.OpenJPAEntityManagerFactorySPI;
import org.apache.openjpa.persistence.test.AbstractPersistenceTestCase;
import org.apache.openjpa.persistence.xmlmapping.entities.Customer;
import org.apache.openjpa.persistence.xmlmapping.entities.EAddress;
import org.apache.openjpa.persistence.xmlmapping.entities.Order;
import org.apache.openjpa.persistence.xmlmapping.xmlbindings.myaddress.Address;

public class TestMetaDataRepository extends AbstractPersistenceTestCase {
	private final String PU_NAME = "mdr-pu";

	@Override
	public void setUp() throws Exception {
		super.setUp();
	}

	/**
	 * This method ensures that some of the basic MetaData is properly
	 * registered after creating an EMF.
	 */
	public void testPreloadBasic() {
		OpenJPAEntityManagerFactorySPI emf = null;
		try {
			emf = createNamedEMF(PU_NAME, "openjpa.MetaDataRepository",
					"Preload=true");
			MetaDataRepository mdr = emf.getConfiguration()
					.getMetaDataRepositoryInstance();

			// Check that there is cached metadata in the repo
			ClassMetaData metadata = mdr.getCachedMetaData(MdrTestEntity.class);
			assertNotNull(metadata);

			// Make sure that there is an alias registered
			// int numEntities =
			// mdr.getPersistentTypeNames(false,
			// AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction())).size();
			Collection<String> aliases = mdr.getAliasNames();
			assertTrue(aliases.contains("MdrTestEntity"));

			// assertTrue(aliases.size() == numEntities);

			QueryMetaData query = mdr.getCachedQueryMetaData("query");
			assertNotNull(query);
		} finally {
			closeEMF(emf);
		}
	}
	
	public void testPreloadCleanUp() {
        OpenJPAEntityManagerFactorySPI emf = null;
        emf = createNamedEMF(PU_NAME, "openjpa.MetaDataRepository", "Preload=true");
        MetaDataRepository repo = emf.getConfiguration().getMetaDataRepositoryInstance();
        emf.createEntityManager();
        closeEMF(emf);
        assertFalse("The PCRegistry should no longer reference the MetaDataRepository.", PCRegistry
            .removeRegisterClassListener(repo));
    }

	public void testXmlMappingPreload() {
        OpenJPAEntityManagerFactorySPI emf = null;
        try {
            emf =
                createNamedEMF("test", "openjpa.MetaDataRepository", "Preload=true", Customer.class,
                    Customer.CustomerKey.class, Order.class, EAddress.class);
            MetaDataRepository mdr = emf.getConfiguration().getMetaDataRepositoryInstance();

            assertNotNull(mdr.getCachedXMLMetaData(Address.class));
            assertNull(mdr.getCachedXMLMetaData(Order.class));
            

        } finally {
            closeEMF(emf);
        }
    }
	
    public void testPreloadConfiguration() {
        OpenJPAEntityManagerFactorySPI emf = createNamedEMF(PU_NAME, "openjpa.MetaDataRepository", "preload=true");
        assertTrue(MetaDataRepository.needsPreload(emf.getConfiguration()));
        emf.close();

        emf = createNamedEMF(PU_NAME, "openjpa.MetaDataRepository", "Preload=true");
        assertTrue(MetaDataRepository.needsPreload(emf.getConfiguration()));
        emf.close();
    }
}