/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014-2022 abel533@gmail.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.github.pagehelper.util;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.jdbc.ScriptRunner;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import java.io.IOException;
import java.io.Reader;
import java.sql.Connection;

/**
 * Description: MybatisHelper
 * Author: liuzh
 * Update: liuzh(2014-06-06 13:33)
 */
public class MybatisRowBoundsHelper {

    private static SqlSessionFactory sqlSessionFactory;

    static {
        try {
            //创建SqlSessionFactory
            Reader reader = Resources.getResourceAsReader(TestUtil.getXmlPath() + "/mybatis-config-rowbounds.xml");
            sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
            reader.close();
            if (TestUtil.getXmlPath().equalsIgnoreCase("hsqldb")
                    || TestUtil.getXmlPath().equalsIgnoreCase("h2")
                    || TestUtil.getXmlPath().equalsIgnoreCase("derby")) {
                //创建数据库
                SqlSession session = null;
                try {
                    session = sqlSessionFactory.openSession();
                    Connection conn = session.getConnection();
                    reader = Resources.getResourceAsReader(TestUtil.getXmlPath() + "/" + TestUtil.getXmlPath() + ".sql");
                    ScriptRunner runner = new ScriptRunner(conn);
                    runner.setLogWriter(null);
                    runner.runScript(reader);
                    reader.close();
                } finally {
                    if (session != null) {
                        session.close();
                    }
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * 获取Session
     *
     * @return
     */
    public static SqlSession getSqlSession() {
        return sqlSessionFactory.openSession();
    }
}
