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/**
 *  Copyright (c) 1997-2013, www.tinygroup.org ([email protected]).
 *
 *  Licensed under the GPL, Version 3.0 (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.gnu.org/licenses/gpl.html
 *
 *  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.tinygroup.databasechange;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.Map;

import org.tinygroup.commons.io.StreamUtil;
import org.tinygroup.logger.LogLevel;
import org.tinygroup.logger.Logger;
import org.tinygroup.logger.LoggerFactory;

/**
 * 表格结果变更信息记录的工具类
 * 
 * @author renhui
 * 
 */
public class TableSqlChangeUtil {

	
	private static final Logger LOGGER = LoggerFactory
			.getLogger(DatabaseInstallerStart.class);
	
	public static void main(String[] args) throws IOException {
		if (args.length != 1) {
			System.exit(0);
		}
		String fileName = args[0];
		long start = System.currentTimeMillis();
		LOGGER.logMessage(LogLevel.INFO, "开始生成数据库变更sql");
		DatabaseInstallerStart installerStart = new DatabaseInstallerStart();
		StringBuilder builder = new StringBuilder();
		try {
			Map> processSqls = installerStart
					.getChangeSqls();
			TableSqlUtil.appendSqlText(builder, processSqls);
			StreamUtil.writeText(builder, new FileWriter(new File(fileName)),
					true);
		} catch (Exception e) {
			e.printStackTrace(new PrintWriter(
					new FileWriter(new File(fileName)), true));
		}
		LOGGER.logMessage(LogLevel.INFO, "生成数据库变更sql过程结束,总执行时间:{0}",System.currentTimeMillis()-start);
	}
}