org.asimba.wa.integrationtest.server.AsimbaWaDerbyDb.java Source code

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Here is the source code for org.asimba.wa.integrationtest.server.AsimbaWaDerbyDb.java

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/*
 * Asimba - Serious Open Source SSO
 * 
 * Copyright (C) 2014 Asimba
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see www.gnu.org/licenses
 * 
 * Asimba - Serious Open Source SSO - More information on www.asimba.org
 * 
 */
package org.asimba.wa.integrationtest.server;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import javax.sql.DataSource;
import org.apache.commons.dbcp.BasicDataSource;
import org.asimba.wa.integrationtest.RunConfiguration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class AsimbaWaDerbyDb {
    private static Logger _logger = LoggerFactory.getLogger(AsimbaWaDerbyDb.class);

    private static AsimbaWaDerbyDb _asimbaWaDerbyDb = null;

    public static AsimbaWaDerbyDb getInstance() {
        if (_asimbaWaDerbyDb == null)
            _asimbaWaDerbyDb = new AsimbaWaDerbyDb();
        return _asimbaWaDerbyDb;
    }

    private AsimbaWaDerbyDb() {
        String driverClassName = RunConfiguration.getInstance().getProperty("db.driverClass");
        String url = RunConfiguration.getInstance().getProperty("db.connectionString");
        String username = RunConfiguration.getInstance().getProperty("db.username");
        String password = RunConfiguration.getInstance().getProperty("db.password");

        BasicDataSource ds = null;
        ds = new BasicDataSource();
        ds.setDriverClassName(driverClassName);
        ds.setUrl(url);
        ds.setUsername(username);
        ds.setPassword(password);

        _datasource = ds;
    }

    private DataSource _datasource;

    /**
     * Convenience method to execute an SQL-command in a string; note that 
     * absolutely no handling, validation whatsoever of the SQL is done here.
     * @param sql SQL to execute
     */
    public void executeSql(String sql) {
        try (Connection con = _datasource.getConnection(); PreparedStatement pstmt = con.prepareStatement(sql)) {
            pstmt.execute();
        } catch (SQLException e) {
            _logger.error("SQL went wrong: {}", e.getMessage(), e);
            e.printStackTrace();
        }
    }

    /**
     * return a connection from the datasource
     * @return
     */
    public Connection getConnection() {
        if (_datasource == null)
            return null;
        try {
            return _datasource.getConnection();
        } catch (SQLException sqle) {
            _logger.error("Could not get connection: {}", sqle.getMessage(), sqle);
            return null;
        }
    }

}