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1 /** |
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2 * SQL-DK |
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3 * Copyright © 2015 František Kučera (frantovo.cz) |
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4 * |
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5 * This program is free software: you can redistribute it and/or modify |
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6 * it under the terms of the GNU General Public License as published by |
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7 * the Free Software Foundation, either version 3 of the License, or |
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8 * (at your option) any later version. |
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9 * |
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10 * This program is distributed in the hope that it will be useful, |
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 * GNU General Public License for more details. |
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14 * |
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15 * You should have received a copy of the GNU General Public License |
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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17 */ |
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18 package info.globalcode.sql.dk.configuration; |
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19 |
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20 import info.globalcode.sql.dk.*; |
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21 import static info.globalcode.sql.dk.DatabaseConnection.JDBC_PROPERTY_USER; |
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22 import static info.globalcode.sql.dk.DatabaseConnection.JDBC_PROPERTY_PASSWORD; |
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23 import java.sql.Connection; |
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24 import java.sql.Driver; |
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25 import java.sql.DriverManager; |
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26 import java.sql.SQLException; |
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27 import java.util.logging.Level; |
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28 import java.util.logging.Logger; |
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29 import javax.xml.bind.JAXBContext; |
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30 import javax.xml.bind.Unmarshaller; |
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31 |
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32 /** |
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33 * Configuration loader – deserializes Configuration from the XML file. |
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34 * |
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35 * @author Ing. František Kučera (frantovo.cz) |
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36 */ |
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37 public class Loader { |
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38 |
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39 private static final Logger log = Logger.getLogger(Loader.class.getName()); |
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40 |
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41 public Configuration loadConfiguration() throws ConfigurationException { |
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42 try { |
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43 JAXBContext jaxb = JAXBContext.newInstance(Configuration.class.getPackage().getName(), Configuration.class.getClassLoader()); |
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44 Unmarshaller u = jaxb.createUnmarshaller(); |
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45 return (Configuration) u.unmarshal(Constants.CONFIG_FILE); |
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46 } catch (Exception e) { |
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47 throw new ConfigurationException("Unable to load configuration from " + Constants.CONFIG_FILE, e); |
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48 } |
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49 } |
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50 |
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51 /** |
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52 * JDBC connection should not be used directly in SQL-DK. |
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53 * |
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54 * @see DatabaseDefinition#connect(info.globalcode.sql.dk.configuration.Properties) |
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55 * @param properties |
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56 * @param databaseDefinition |
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57 * @return |
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58 * @throws java.sql.SQLException |
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59 */ |
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60 public static Connection jdbcConnect(DatabaseDefinition databaseDefinition, Properties properties) throws SQLException { |
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61 synchronized (properties) { |
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62 /** |
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63 * Avoid rewriting the properties. Usually, the connection is created only once, but |
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64 * with --test-connection and with SQL-DK JDBC driver, it might be reused. |
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65 */ |
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66 properties = properties.clone(); |
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67 } |
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68 if (properties.hasProperty(JDBC_PROPERTY_PASSWORD)) { |
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69 log.log(Level.WARNING, "Passing DB password as CLI parameter is insecure!"); |
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70 } |
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71 Properties credentials = new Properties(); |
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72 credentials.add(new Property(JDBC_PROPERTY_USER, databaseDefinition.getUserName())); |
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73 credentials.add(new Property(JDBC_PROPERTY_PASSWORD, databaseDefinition.getPassword())); |
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74 credentials.setDefaults(databaseDefinition.getProperties()); |
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75 properties.setDefaults(credentials); |
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76 java.util.Properties javaProperties = properties.getJavaProperties(); |
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77 |
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78 String driverClassName = databaseDefinition.getDriver(); |
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79 final String url = databaseDefinition.getUrl(); |
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80 if (driverClassName == null) { |
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81 log.log(Level.FINE, "Using DriverManager to create connection for „{0}“", url); |
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82 return DriverManager.getConnection(url, javaProperties); |
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83 } else { |
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84 log.log(Level.FINE, "Using custom Driver „{0}“ to create connection for „{1}“", new Object[]{driverClassName, url}); |
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85 try { |
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86 Class<Driver> driverClass = (Class<Driver>) Class.forName(driverClassName); |
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87 Driver driver = driverClass.newInstance(); |
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88 Connection connection = driver.connect(url, javaProperties); |
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89 if (connection == null) { |
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90 log.log(Level.SEVERE, "Driver „{0}“ returend null → it does not accept the URL: „{1}“", new Object[]{driverClassName, url}); |
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91 throw new SQLException("Unable to connect: driver returned null."); |
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92 } else { |
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93 return connection; |
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94 } |
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95 } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | SQLException e) { |
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96 throw new SQLException("Unable to connect usig specific driver: " + driverClassName, e); |
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97 } |
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98 } |
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99 } |
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100 |
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101 } |