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 +}