Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/datacage/DBConfig.java @ 1745:4ae7df2a74ed

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Fix NPE in WDiff-diagram because no ranges present in masterartifact. flys-artifacts/trunk@3039 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 19 Oct 2011 16:06:01 +0000
parents 9a1a3080ad98
children 5642a83420f2
rev   line source
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4ea5f5a2284e Ajusted datacage to use the SQL infrastructure from the artifact database.
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1 package de.intevation.flys.artifacts.datacage;
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2
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3 import de.intevation.artifacts.common.utils.Config;
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4
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5 import de.intevation.artifactdatabase.db.SQL;
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6 import de.intevation.artifactdatabase.db.DBConnection;
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7
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8 import org.apache.log4j.Logger;
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9
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10 public class DBConfig
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11 {
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12 private static Logger logger = Logger.getLogger(DBConfig.class);
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13
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14 /**
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15 * XPath to access the database driver within the global configuration.
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16 */
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17 public static final String DB_DRIVER =
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18 "/artifact-database/datacage/driver/text()";
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19 /**
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20 * XPath to access the database URL within the global configuration.
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21 */
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22 public static final String DB_URL =
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23 "/artifact-database/datacage/url/text()";
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24 /**
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25 * XPath to access the database use within the global configuration.
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26 */
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27 public static final String DB_USER =
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28 "/artifact-database/datacage/user/text()";
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29 /**
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30 * XPath to access the database password within the global configuration.
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31 */
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32 public static final String DB_PASSWORD =
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33 "/artifact-database/datacage/password/text()";
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34
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35 /**
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36 * The default database driver: H2
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37 */
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38 public static final String DEFAULT_DRIVER =
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39 "org.h2.Driver";
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40
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41 /**
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42 * The default database user: ""
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43 */
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44 public static final String DEFAULT_USER = "";
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45
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46 /**
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47 * The default database password: ""
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48 */
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49 public static final String DEFAULT_PASSWORD = "";
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50
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51
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52 public static final String DEFAULT_URL =
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53 "jdbc:h2:mem:datacage;INIT=RUNSCRIPT FROM '${artifacts.config.dir}/datacage.sql'";
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54
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55 public static final String RESOURCE_PATH = "/datacage-sql";
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56
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57 private static DBConfig instance;
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58
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59 protected DBConnection dbConnection;
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60 protected SQL sql;
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61
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62 public DBConfig() {
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63 }
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64
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65 public DBConfig(DBConnection dbConnection, SQL sql) {
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66 this.dbConnection = dbConnection;
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67 this.sql = sql;
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68 }
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69
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70 public static synchronized DBConfig getInstance() {
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71 if (instance == null) {
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72 instance = createInstance();
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73 }
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74 return instance;
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75 }
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76
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77 protected static DBConfig createInstance() {
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78 String driver = Config.getStringXPath(
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79 DB_DRIVER, DEFAULT_DRIVER);
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80
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81 String url = Config.getStringXPath(
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82 DB_URL, DEFAULT_URL);
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83
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84 url = Config.replaceConfigDir(url);
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86 String user = Config.getStringXPath(
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87 DB_USER, DEFAULT_USER);
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88
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89 String password = Config.getStringXPath(
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90 DB_PASSWORD, DEFAULT_PASSWORD);
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91
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92 DBConnection dbConnection = new DBConnection(
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93 driver, url, user, password);
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95 SQL sql = new SQL(DBConfig.class, RESOURCE_PATH, driver);
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96
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97 return new DBConfig(dbConnection, sql);
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98 }
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100 public DBConnection getDBConnection() {
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101 return dbConnection;
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102 }
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103
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104 public SQL getSQL() {
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105 return sql;
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106 }
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107 }
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108 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org