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Module handling the database schema update.
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/*
 * MIT License
 *
 * Copyright (c) 2019 Grégory Van den Borre
 *
 * 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 be.yildizgames.module.database.updater;

import be.yildizgames.module.database.DataBaseConnectionProvider;
import liquibase.Liquibase;
import liquibase.database.Database;
import liquibase.database.DatabaseFactory;
import liquibase.database.jvm.JdbcConnection;
import liquibase.exception.LiquibaseException;
import liquibase.exception.LockException;
import liquibase.resource.ClassLoaderResourceAccessor;

import java.sql.Connection;
import java.sql.SQLException;
import java.util.Objects;

/**
 * Liquibase implementation to update the database schema.
 *
 * @author Grégory Van den Borre
 */
public class LiquibaseDatabaseUpdater implements DatabaseUpdater {

    private final System.Logger logger = System.getLogger(this.getClass().getName());

    private final String configurationFile;

    private LiquibaseDatabaseUpdater(final String configurationFile) {
        super();
        this.configurationFile = Objects.requireNonNull(configurationFile);
    }

    public static LiquibaseDatabaseUpdater fromConfigurationPath(final String path) {
        return new LiquibaseDatabaseUpdater(path);
    }

    @Override
    public final void update(final DataBaseConnectionProvider provider) throws SQLException {
        this.logger.log(System.Logger.Level.INFO, "Updating database schema...");
        try (Connection c = provider.getConnection()) {
            Database database = DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new JdbcConnection(c));
            Liquibase liquibase = new Liquibase(this.configurationFile, new ClassLoaderResourceAccessor(), database);
            liquibase.forceReleaseLocks();
            liquibase.update("database-update");
            this.logger.log(System.Logger.Level.INFO, "Updating database schema completed.");
            database.close();
        } catch (LockException e) {
            this.logger.log(System.Logger.Level.WARNING, "Updating database schema error, file locked.");
        } catch (LiquibaseException | SQLException e) {
            throw new SQLException(e);
        }
    }
}