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annotate artifact-database/src/main/java/de/intevation/artifactdatabase/db/DBConnection.java @ 305:f33401ea2a6c

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Artifact database: Refactorized the usage of dialect independent SQL to be reusable. artifacts/trunk@2412 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Thu, 28 Jul 2011 10:19:35 +0000
parents
children a077bb098eb4
rev   line source
305
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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1 package de.intevation.artifactdatabase.db;
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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2
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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3 import java.sql.SQLException;
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4
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5 import javax.sql.DataSource;
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6
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7 import java.io.File;
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8
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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9 import org.apache.commons.dbcp.BasicDataSource;
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10
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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11 import de.intevation.artifacts.common.utils.Config;
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12
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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13 public class DBConnection
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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14 {
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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15 public static final String DEFAULT_DRIVER = "org.h2.Driver";
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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16 public static final String DEFAULT_USER = "";
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17 public static final String DEFAULT_PASSWORD = "";
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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18 public static final String DEFAULT_DATABASE_FILE = "artifacts.db";
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19 public static final String DEFAULT_URL = getDefaultURL();
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20
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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21 public static final String getDefaultURL() {
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22 File configDir = Config.getConfigDirectory();
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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23 File databaseFile = new File(configDir, DEFAULT_DATABASE_FILE);
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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24 return "jdbc:h2:" + databaseFile;
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25 }
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26
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27 protected BasicDataSource dataSource;
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28
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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29 protected String driver;
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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30 protected String url;
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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31 protected String user;
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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32 protected String password;
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33
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34 public DBConnection() {
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35 }
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36
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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37 public DBConnection(
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38 String driver,
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39 String url,
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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40 String user,
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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41 String password
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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42 ) {
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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43 this.driver = driver;
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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44 this.url = url;
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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45 this.user = user;
f33401ea2a6c Artifact database: Refactorized the usage of dialect independent SQL to be reusable.
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46 this.password = password;
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47 }
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48
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49 public String getUser() {
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50 return user;
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51 }
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52
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53 public void setUser(String user) {
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54 this.user = user;
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55 }
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56
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57 public String getPassword() {
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58 return password;
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59 }
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60
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61 public void setPassword(String password) {
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62 this.password = password;
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63 }
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64
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65 public String getDriver() {
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66 return driver;
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67 }
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68
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69 public void setDriver(String driver) {
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70 this.driver = driver;
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71 }
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72
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73 public String getUrl() {
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74 return url;
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75 }
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76
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77 public void setUrl(String url) {
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78 this.url = url;
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79 }
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80
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81 protected void addShutdownHook() {
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82 Runtime.getRuntime().addShutdownHook(new Thread() {
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83 @Override
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84 public void run() {
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85 if (dataSource != null) {
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86 try {
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87 dataSource.close();
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88 }
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89 catch (SQLException sqle) {
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90 }
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91 dataSource = null;
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92 }
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93 }
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94 });
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95 }
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96
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97 public synchronized DataSource getDataSource() {
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98 if (dataSource == null) {
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99 dataSource = new BasicDataSource();
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100
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101 dataSource.setDriverClassName(driver);
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102 dataSource.setUsername(user);
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103 dataSource.setPassword(password);
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104 dataSource.setUrl(url);
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105 addShutdownHook();
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106 }
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107 return dataSource;
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108 }
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109 }
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110 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org