1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/java/sql-dk/src/main/java/info/globalcode/sql/dk/configuration/Loader.java	Mon Mar 04 20:15:24 2019 +0100
     1.3 @@ -0,0 +1,101 @@
     1.4 +/**
     1.5 + * SQL-DK
     1.6 + * Copyright © 2015 František Kučera (frantovo.cz)
     1.7 + *
     1.8 + * This program is free software: you can redistribute it and/or modify
     1.9 + * it under the terms of the GNU General Public License as published by
    1.10 + * the Free Software Foundation, either version 3 of the License, or
    1.11 + * (at your option) any later version.
    1.12 + *
    1.13 + * This program is distributed in the hope that it will be useful,
    1.14 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    1.16 + * GNU General Public License for more details.
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License
    1.19 + * along with this program. If not, see <http://www.gnu.org/licenses/>.
    1.20 + */
    1.21 +package info.globalcode.sql.dk.configuration;
    1.22 +
    1.23 +import info.globalcode.sql.dk.*;
    1.24 +import static info.globalcode.sql.dk.DatabaseConnection.JDBC_PROPERTY_USER;
    1.25 +import static info.globalcode.sql.dk.DatabaseConnection.JDBC_PROPERTY_PASSWORD;
    1.26 +import java.sql.Connection;
    1.27 +import java.sql.Driver;
    1.28 +import java.sql.DriverManager;
    1.29 +import java.sql.SQLException;
    1.30 +import java.util.logging.Level;
    1.31 +import java.util.logging.Logger;
    1.32 +import javax.xml.bind.JAXBContext;
    1.33 +import javax.xml.bind.Unmarshaller;
    1.34 +
    1.35 +/**
    1.36 + * Configuration loader – deserializes Configuration from the XML file.
    1.37 + *
    1.38 + * @author Ing. František Kučera (frantovo.cz)
    1.39 + */
    1.40 +public class Loader {
    1.41 +
    1.42 +	private static final Logger log = Logger.getLogger(Loader.class.getName());
    1.43 +
    1.44 +	public Configuration loadConfiguration() throws ConfigurationException {
    1.45 +		try {
    1.46 +			JAXBContext jaxb = JAXBContext.newInstance(Configuration.class.getPackage().getName(), Configuration.class.getClassLoader());
    1.47 +			Unmarshaller u = jaxb.createUnmarshaller();
    1.48 +			return (Configuration) u.unmarshal(Constants.CONFIG_FILE);
    1.49 +		} catch (Exception e) {
    1.50 +			throw new ConfigurationException("Unable to load configuration from " + Constants.CONFIG_FILE, e);
    1.51 +		}
    1.52 +	}
    1.53 +
    1.54 +	/**
    1.55 +	 * JDBC connection should not be used directly in SQL-DK.
    1.56 +	 *
    1.57 +	 * @see DatabaseDefinition#connect(info.globalcode.sql.dk.configuration.Properties)
    1.58 +	 * @param properties
    1.59 +	 * @param databaseDefinition
    1.60 +	 * @return
    1.61 +	 * @throws java.sql.SQLException
    1.62 +	 */
    1.63 +	public static Connection jdbcConnect(DatabaseDefinition databaseDefinition, Properties properties) throws SQLException {
    1.64 +		synchronized (properties) {
    1.65 +			/**
    1.66 +			 * Avoid rewriting the properties. Usually, the connection is created only once, but
    1.67 +			 * with --test-connection and with SQL-DK JDBC driver, it might be reused.
    1.68 +			 */
    1.69 +			properties = properties.clone();
    1.70 +		}
    1.71 +		if (properties.hasProperty(JDBC_PROPERTY_PASSWORD)) {
    1.72 +			log.log(Level.WARNING, "Passing DB password as CLI parameter is insecure!");
    1.73 +		}
    1.74 +		Properties credentials = new Properties();
    1.75 +		credentials.add(new Property(JDBC_PROPERTY_USER, databaseDefinition.getUserName()));
    1.76 +		credentials.add(new Property(JDBC_PROPERTY_PASSWORD, databaseDefinition.getPassword()));
    1.77 +		credentials.setDefaults(databaseDefinition.getProperties());
    1.78 +		properties.setDefaults(credentials);
    1.79 +		java.util.Properties javaProperties = properties.getJavaProperties();
    1.80 +
    1.81 +		String driverClassName = databaseDefinition.getDriver();
    1.82 +		final String url = databaseDefinition.getUrl();
    1.83 +		if (driverClassName == null) {
    1.84 +			log.log(Level.FINE, "Using DriverManager to create connection for „{0}“", url);
    1.85 +			return DriverManager.getConnection(url, javaProperties);
    1.86 +		} else {
    1.87 +			log.log(Level.FINE, "Using custom Driver „{0}“ to create connection for „{1}“", new Object[]{driverClassName, url});
    1.88 +			try {
    1.89 +				Class<Driver> driverClass = (Class<Driver>) Class.forName(driverClassName);
    1.90 +				Driver driver = driverClass.newInstance();
    1.91 +				Connection connection = driver.connect(url, javaProperties);
    1.92 +				if (connection == null) {
    1.93 +					log.log(Level.SEVERE, "Driver „{0}“ returend null → it does not accept the URL: „{1}“", new Object[]{driverClassName, url});
    1.94 +					throw new SQLException("Unable to connect: driver returned null.");
    1.95 +				} else {
    1.96 +					return connection;
    1.97 +				}
    1.98 +			} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | SQLException e) {
    1.99 +				throw new SQLException("Unable to connect usig specific driver: " + driverClassName, e);
   1.100 +			}
   1.101 +		}
   1.102 +	}
   1.103 +
   1.104 +}