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/**
 *
 * Copyright (C) 2012-2013 DuyHai DOAN
 *
 * 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 info.archinnov.achilles.junit;

import static info.archinnov.achilles.embedded.AchillesEmbeddedServer.*;
import info.archinnov.achilles.embedded.CQLEmbeddedServer;
import info.archinnov.achilles.entity.manager.CQLPersistenceManager;
import info.archinnov.achilles.entity.manager.CQLPersistenceManagerFactory;

import org.apache.commons.lang.StringUtils;

import com.datastax.driver.core.Session;

public class AchillesCQLResource extends AchillesTestResource {

	private final CQLPersistenceManagerFactory pmf;
	private final CQLPersistenceManager manager;
	private final CQLEmbeddedServer server;
	private final Session session;

	/**
	 * Initialize a new embedded Cassandra server
	 * 
	 * @param entityPackages
	 *            packages to scan for entity discovery, comma separated
	 * @param tables
	 *            list of tables to truncate before and after tests
	 */
	public AchillesCQLResource(String entityPackages, String... tables) {
		super(tables);
		if (StringUtils.isEmpty(entityPackages))
			throw new IllegalArgumentException("Entity packages should be provided");

		server = new CQLEmbeddedServer(true, entityPackages, CASSANDRA_TEST_KEYSPACE_NAME);
		pmf = server.getPersistenceManagerFactory();
		manager = server.getPersistenceManager();
		session = manager.getNativeSession();
	}

	/**
	 * Initialize a new embedded Cassandra server
	 * 
	 * @param entityPackages
	 *            packages to scan for entity discovery, comma separated
	 * 
	 * @param cleanUpSteps
	 *            when to truncate tables for clean up. Possible values are :
	 *            Steps.BEFORE_TEST, Steps.AFTER_TEST and Steps.BOTH (Default
	 *            value) 

	 * 

	 * 
	 * @param tables
	 *            list of tables to truncate before, after or before and after
	 *            tests, depending on the 'cleanUpSteps' parameters
	 */
	public AchillesCQLResource(String entityPackages, Steps cleanUpSteps, String... tables) {
		super(cleanUpSteps, tables);
		if (StringUtils.isEmpty(entityPackages))
			throw new IllegalArgumentException("Entity packages should be provided");

		server = new CQLEmbeddedServer(true, entityPackages, CASSANDRA_TEST_KEYSPACE_NAME);
		pmf = server.getPersistenceManagerFactory();
		manager = server.getPersistenceManager();
		session = manager.getNativeSession();
	}

	/**
	 * Return a singleton CQLPersistenceManagerFactory
	 * 
	 * @return CQLPersistenceManagerFactory singleton
	 */
	public CQLPersistenceManagerFactory getPersistenceManagerFactory() {
		return pmf;
	}

	/**
	 * Return a singleton CQLPersistenceManager
	 * 
	 * @return CQLPersistenceManager singleton
	 */
	public CQLPersistenceManager getPersistenceManager() {
		return manager;
	}

	/**
	 * Return a native CQL3 Session
	 * 
	 * @return native CQL3 Session
	 */
	public Session getNativeSession() {
		return session;
	}

	@Override
	protected void truncateTables() {
		if (tables != null) {
			for (String table : tables) {
				server.truncateTable(table);
			}
		}
	}

}