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mchange-commons-java

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/*
 * Distributed as part of mchange-commons-java v.0.2.3
 *
 * Copyright (C) 2012 Machinery For Change, Inc.
 *
 * Author: Steve Waldman 
 *
 * This library is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 2.1, as 
 * published by the Free Software Foundation.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this software; see the file LICENSE.  If not, write to the
 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 */


package com.mchange.v1.db.sql;

import java.sql.*;
import com.mchange.v1.util.*;

import com.mchange.util.CommandLineParser;
import com.mchange.util.impl.CommandLineParserImpl;

public class SchemaManager
{
    final static String[] VALID = new String[] {"create", "drop"};

    public static void main(String[] argv)
    {
	Connection con = null;
	try
	    {
		CommandLineParser clp = new CommandLineParserImpl(argv, VALID, null, null);
		boolean create = clp.checkSwitch("create");
		
		if (!clp.checkArgv()) usage();
		if (! (create ^ clp.checkSwitch("drop"))) usage();
		
		String[] unswitched = clp.findUnswitchedArgs();

		if (unswitched.length == 2)
		    con = DriverManager.getConnection(unswitched[0]);
		else if (unswitched.length == 4)
		    con = DriverManager.getConnection(unswitched[0], unswitched[1], unswitched[2]);
		else
		    usage();

		con.setAutoCommit(false);

		Schema s = (Schema) (Class.forName(unswitched[unswitched.length - 1]).newInstance());
		if (create)
		    {
			s.createSchema(con);
			System.out.println("Schema created.");
		    }
		else
		    {
			s.dropSchema(con);
			System.out.println("Schema dropped.");
		    }
	    }
	catch (Exception e)
	    {e.printStackTrace();}
	finally
	    {CleanupUtils.attemptClose(con);}
    }

    static void usage()
    {
	System.err.println("java -Djdbc.drivers= com.mchange.v1.db.sql.SchemaManager" +
			   " [-create | -drop]  [ ] ");
	System.exit(-1);
    }
}