franta-hg@16: /**
franta-hg@16:  * SQL-DK
franta-hg@189:  * Copyright © 2015 František Kučera (frantovo.cz)
franta-hg@16:  *
franta-hg@16:  * This program is free software: you can redistribute it and/or modify
franta-hg@16:  * it under the terms of the GNU General Public License as published by
franta-hg@250:  * the Free Software Foundation, version 3 of the License.
franta-hg@16:  *
franta-hg@16:  * This program is distributed in the hope that it will be useful,
franta-hg@16:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
franta-hg@16:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
franta-hg@16:  * GNU General Public License for more details.
franta-hg@16:  *
franta-hg@16:  * You should have received a copy of the GNU General Public License
franta-hg@16:  * along with this program. If not, see <http://www.gnu.org/licenses/>.
franta-hg@16:  */
franta-hg@189: package info.globalcode.sql.dk.configuration;
franta-hg@1: 
franta-hg@189: import info.globalcode.sql.dk.*;
franta-hg@192: import static info.globalcode.sql.dk.DatabaseConnection.JDBC_PROPERTY_USER;
franta-hg@192: import static info.globalcode.sql.dk.DatabaseConnection.JDBC_PROPERTY_PASSWORD;
franta-hg@192: import java.sql.Connection;
franta-hg@194: import java.sql.Driver;
franta-hg@192: import java.sql.DriverManager;
franta-hg@192: import java.sql.SQLException;
franta-hg@192: import java.util.logging.Level;
franta-hg@192: import java.util.logging.Logger;
franta-hg@33: import javax.xml.bind.JAXBContext;
franta-hg@33: import javax.xml.bind.Unmarshaller;
franta-hg@13: 
franta-hg@1: /**
franta-hg@189:  * Configuration loader – deserializes Configuration from the XML file.
franta-hg@1:  *
franta-hg@1:  * @author Ing. František Kučera (frantovo.cz)
franta-hg@1:  */
franta-hg@189: public class Loader {
franta-hg@1: 
franta-hg@192: 	private static final Logger log = Logger.getLogger(Loader.class.getName());
franta-hg@192: 
franta-hg@189: 	public Configuration loadConfiguration() throws ConfigurationException {
franta-hg@33: 		try {
franta-hg@193: 			JAXBContext jaxb = JAXBContext.newInstance(Configuration.class.getPackage().getName(), Configuration.class.getClassLoader());
franta-hg@33: 			Unmarshaller u = jaxb.createUnmarshaller();
franta-hg@33: 			return (Configuration) u.unmarshal(Constants.CONFIG_FILE);
franta-hg@33: 		} catch (Exception e) {
franta-hg@33: 			throw new ConfigurationException("Unable to load configuration from " + Constants.CONFIG_FILE, e);
franta-hg@33: 		}
franta-hg@20: 	}
franta-hg@80: 
franta-hg@192: 	/**
franta-hg@192: 	 * JDBC connection should not be used directly in SQL-DK.
franta-hg@192: 	 *
franta-hg@192: 	 * @see DatabaseDefinition#connect(info.globalcode.sql.dk.configuration.Properties)
franta-hg@192: 	 * @param properties
franta-hg@192: 	 * @param databaseDefinition
franta-hg@192: 	 * @return
franta-hg@192: 	 * @throws java.sql.SQLException
franta-hg@192: 	 */
franta-hg@192: 	public static Connection jdbcConnect(DatabaseDefinition databaseDefinition, Properties properties) throws SQLException {
franta-hg@236: 		synchronized (properties) {
franta-hg@236: 			/**
franta-hg@236: 			 * Avoid rewriting the properties. Usually, the connection is created only once, but
franta-hg@236: 			 * with --test-connection and with SQL-DK JDBC driver, it might be reused.
franta-hg@236: 			 */
franta-hg@236: 			properties = properties.clone();
franta-hg@236: 		}
franta-hg@192: 		if (properties.hasProperty(JDBC_PROPERTY_PASSWORD)) {
franta-hg@192: 			log.log(Level.WARNING, "Passing DB password as CLI parameter is insecure!");
franta-hg@192: 		}
franta-hg@192: 		Properties credentials = new Properties();
franta-hg@192: 		credentials.add(new Property(JDBC_PROPERTY_USER, databaseDefinition.getUserName()));
franta-hg@192: 		credentials.add(new Property(JDBC_PROPERTY_PASSWORD, databaseDefinition.getPassword()));
franta-hg@192: 		credentials.setDefaults(databaseDefinition.getProperties());
franta-hg@192: 		properties.setDefaults(credentials);
franta-hg@192: 		java.util.Properties javaProperties = properties.getJavaProperties();
franta-hg@194: 
franta-hg@194: 		String driverClassName = databaseDefinition.getDriver();
franta-hg@194: 		final String url = databaseDefinition.getUrl();
franta-hg@194: 		if (driverClassName == null) {
franta-hg@194: 			log.log(Level.FINE, "Using DriverManager to create connection for „{0}“", url);
franta-hg@194: 			return DriverManager.getConnection(url, javaProperties);
franta-hg@194: 		} else {
franta-hg@194: 			log.log(Level.FINE, "Using custom Driver „{0}“ to create connection for „{1}“", new Object[]{driverClassName, url});
franta-hg@194: 			try {
franta-hg@194: 				Class<Driver> driverClass = (Class<Driver>) Class.forName(driverClassName);
franta-hg@194: 				Driver driver = driverClass.newInstance();
franta-hg@196: 				Connection connection = driver.connect(url, javaProperties);
franta-hg@196: 				if (connection == null) {
franta-hg@196: 					log.log(Level.SEVERE, "Driver „{0}“ returend null → it does not accept the URL: „{1}“", new Object[]{driverClassName, url});
franta-hg@196: 					throw new SQLException("Unable to connect: driver returned null.");
franta-hg@196: 				} else {
franta-hg@196: 					return connection;
franta-hg@196: 				}
franta-hg@194: 			} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | SQLException e) {
franta-hg@194: 				throw new SQLException("Unable to connect usig specific driver: " + driverClassName, e);
franta-hg@194: 			}
franta-hg@194: 		}
franta-hg@192: 	}
franta-hg@192: 
franta-hg@1: }