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annotate artifact-database/src/main/java/de/intevation/artifactdatabase/DBConfig.java @ 408:7cdd63310d5c

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Extend user interfaces to handle account information artifacts/trunk@5244 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Bjoern Ricks <bjoern.ricks@intevation.de>
date Thu, 23 Aug 2012 13:39:30 +0000
parents c40729bfe06d
children
rev   line source
305
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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1 package de.intevation.artifactdatabase;
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2
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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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
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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8 public class DBConfig
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9 {
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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10 /**
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11 * XPath to access the database driver within the global configuration.
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12 */
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13 public static final String DB_DRIVER =
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14 "/artifact-database/database/driver/text()";
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15 /**
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16 * XPath to access the database URL within the global configuration.
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17 */
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18 public static final String DB_URL =
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19 "/artifact-database/database/url/text()";
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20 /**
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21 * XPath to access the database use within the global configuration.
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22 */
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23 public static final String DB_USER =
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24 "/artifact-database/database/user/text()";
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25 /**
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26 * XPath to access the database password within the global configuration.
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27 */
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28 public static final String DB_PASSWORD =
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29 "/artifact-database/database/password/text()";
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30
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31 private static DBConfig instance;
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32
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33 private DBConnection dbConnection;
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34 private SQL sql;
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35
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36 private DBConfig() {
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37 }
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38
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39 private DBConfig(DBConnection dbConnection, SQL sql) {
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40 this.dbConnection = dbConnection;
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41 this.sql = sql;
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42 }
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43
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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44 public static synchronized DBConfig getInstance() {
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45 if (instance == null) {
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46 instance = createInstance();
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47 }
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48 return instance;
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49 }
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50
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51 public SQL getSQL() {
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52 return sql;
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53 }
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54
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55 public DBConnection getDBConnection() {
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56 return dbConnection;
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57 }
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58
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59 private static DBConfig createInstance() {
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60
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61 String driver = Config.getStringXPath(
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62 DB_DRIVER, DBConnection.DEFAULT_DRIVER);
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63
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64 String url = Config.getStringXPath(
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65 DB_URL, DBConnection.DEFAULT_URL);
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66
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67 url = Config.replaceConfigDir(url);
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69 String user = Config.getStringXPath(
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70 DB_USER, DBConnection.DEFAULT_USER);
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71
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72 String password = Config.getStringXPath(
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73 DB_PASSWORD, DBConnection.DEFAULT_PASSWORD);
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74
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75 DBConnection dbConnection = new DBConnection(
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76 driver, url, user, password);
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78 SQL sql = new SQL(driver);
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79
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80 return new DBConfig(dbConnection, sql);
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81 }
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82 }
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83 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org