/*
 * Copyright 2005-2010 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.wamblee.security.authentication.jpa;

import java.lang.reflect.Method;
import java.sql.Connection;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Ignore;
import org.wamblee.cache.EhCache;
import org.wamblee.io.ClassPathResource;
import org.wamblee.security.authentication.GroupSet;
import org.wamblee.security.authentication.NameValidator;
import org.wamblee.security.authentication.RegexpNameValidator;
import org.wamblee.security.authentication.User;
import org.wamblee.security.authentication.UserAdministration;
import org.wamblee.security.authentication.UserAdministrationImpl;
import org.wamblee.security.authentication.UserAdministrationImplTest;
import org.wamblee.security.authentication.UserSet;
import org.wamblee.security.authentication.jpa.JpaGroupSet;
import org.wamblee.security.authentication.jpa.JpaUserSet;
import org.wamblee.security.encryption.Md5HexMessageDigester;
import org.wamblee.security.encryption.MessageDigester;
import org.wamblee.support.persistence.JpaTester;
import org.wamblee.support.persistence.TransactionProxyFactory;
import org.wamblee.support.persistence.DatabaseUtils.JdbcUnitOfWork;

/**
 * User administration tests with persistence based on Hibernate. This executes
 * the same test cases as {@link org.wamblee.security.authentication.UserAdministrationImplTest}
 * with in addition, one test case that executes all Hibernate test cases
 * separately with each test case in its own transaction.
 * 
 * @author Erik Brakkee
 */
public class JpaUserAdministrationTest extends UserAdministrationImplTest {
    private static final Log LOG = LogFactory
        .getLog(JpaUserAdministrationTest.class);

    private JpaTester jpaTester;

    private EhCache<String, User> userCache;

    private UserAdministration userAdmin;

    /*
     * (non-Javadoc)
     * 
     * @see org.wamblee.usermgt.UserAdministrationImplTest#setUp()
     */
    @Override
    protected void setUp() throws Exception {
        jpaTester = new JpaTester(new SecurityPersistenceUnit());
        jpaTester.start();

        userCache = new EhCache<String, User>(new ClassPathResource(
            "properties/org.wamblee.security.ehcache.xml"), "users");

        TransactionProxyFactory<UserAdministration> factory = new TransactionProxyFactory<UserAdministration>(
            jpaTester.getJpaBuilder(), UserAdministration.class);

        NameValidator passwordValidator = new RegexpNameValidator(".{5,}",
            "INVALID_PASSWORD", "Password must have at least 5 characters");
        MessageDigester passwordDigester = new Md5HexMessageDigester();
        UserSet userset = new JpaUserSet(userCache, passwordValidator,
            passwordDigester, factory.getTransactionScopedEntityManager());
        GroupSet groupset = new JpaGroupSet(factory
            .getTransactionScopedEntityManager());

        NameValidator userValidator = new RegexpNameValidator(
            "[a-zA-Z]+[a-zA-Z0-9]*", "INVALID_USERNAME", "");
        NameValidator groupValidator = new RegexpNameValidator(
            "[a-zA-Z]+[a-zA-Z0-9]*", "INVALID_GROUPNAME", "");
        UserAdministration userAdminImpl = new UserAdministrationImpl(userset,
            groupset, userValidator, groupValidator);
        userAdmin = factory.getProxy(userAdminImpl);

        super.setUp();
        clearUserCache();
    }

    @Override
    protected void tearDown() throws Exception {
        jpaTester.stop();
        super.tearDown();
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.wamblee.usermgt.UserAdministrationImplTest#createAdmin()
     */
    @Override
    protected UserAdministration createAdmin() {
        return userAdmin;
    }
    
    public void testAllTestsInASeparateTransaction() throws Exception {
        Method[] methods = UserAdministrationImplTest.class.getMethods();

        for (final Method method : methods) {
            if (method.getName().startsWith("test")) {
                jpaTester.getDbUtils().cleanDatabase();
                clearUserCache();
                jpaTester.getDbUtils().executeInTransaction(
                    new JdbcUnitOfWork<Void>() {
                        @Override
                        public Void execute(Connection aConnection)
                            throws Exception {
                            LOG.info("Running test " + method.getName());

                            try {
                                method.invoke(JpaUserAdministrationTest.this);
                            } catch (Throwable t) {
                                LOG.error("Test " + method.getName() +
                                    " failed");
                                throw new RuntimeException(t.getMessage(), t);
                            } finally {
                                LOG.info("Test " + method.getName() +
                                    " finished");
                            }
                            return null;
                        }
                    });
            }
        }
    }

    private void clearUserCache() {
        userCache.clear();
    }
}