la.alsocan.symbiot.cli.DropCreateDatabaseCommand.java Source code

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Here is the source code for la.alsocan.symbiot.cli.DropCreateDatabaseCommand.java

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/*
 * The MIT License
 *
 * Copyright 2014 Florian Poulin - https://github.com/fpoulin.
 *
 * 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 la.alsocan.symbiot.cli;

import java.io.File;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;

import org.apache.commons.io.FileUtils;

import io.dropwizard.cli.ConfiguredCommand;
import io.dropwizard.setup.Bootstrap;
import la.alsocan.symbiot.ServerConfiguration;
import la.alsocan.symbiot.access.BindingDao;
import la.alsocan.symbiot.access.InputDao;
import la.alsocan.symbiot.access.OutputDao;
import la.alsocan.symbiot.access.StreamDao;
import net.sourceforge.argparse4j.inf.Namespace;

/**
 * @author Florian Poulin - https://github.com/fpoulin
 */
public class DropCreateDatabaseCommand extends ConfiguredCommand<ServerConfiguration> {

    private static final String EXPECTED_DRIVER = "org.apache.derby.jdbc.EmbeddedDriver";
    private static final String EXPECTED_URL = "jdbc:derby:symbiotDB";
    private static final String DB_NAME = "symbiotDB";

    public DropCreateDatabaseCommand(String name) {
        super(name, "This command drops the database and create a new one");
    }

    @Override
    protected void run(Bootstrap<ServerConfiguration> bootstrap, Namespace namespace,
            ServerConfiguration configuration) throws Exception {

        // check that the config uses Derby with the expected name (KISS!)
        if (!EXPECTED_DRIVER.equals(configuration.getDataSourceFactory().getDriverClass())
                || !EXPECTED_URL.equals(configuration.getDataSourceFactory().getUrl())) {
            throw new IllegalStateException("Expected driver '" + EXPECTED_DRIVER + "' and url '" + EXPECTED_URL
                    + "' in the config (yeah, that's life).");
        }

        // drop existing database
        File f = new File(DB_NAME);
        if (f.exists() && f.isDirectory()) {
            FileUtils.deleteDirectory(f);
        }

        // create new database (with DDL)
        DriverManager.registerDriver((Driver) Class.forName(EXPECTED_DRIVER).newInstance());
        try (Connection c = DriverManager.getConnection(
                EXPECTED_URL + ";create=true" + ";user=" + configuration.getDataSourceFactory().getUser()
                        + ";password=" + configuration.getDataSourceFactory().getPassword())) {

            c.createStatement().executeUpdate(InputDao.DDL);
            c.createStatement().executeUpdate(OutputDao.DDL);
            c.createStatement().executeUpdate(StreamDao.DDL);
            c.createStatement().executeUpdate(BindingDao.DDL);
        }
    }
}