Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/de/intevation/artifactdatabase/DBConnection.java @ 10:e8626caac353

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* Made Artifact life cycle symmetric: setup/endOfLife. * Implement defaults for Artifact and ArtifactFactory. * Added connection pooling from apache commons dbcp * Made sql schema of artifact database more compatible. * Improve example config. * Made artifactdb start with 'mvn exec:exec' * minor fixes. artifacts/trunk@25 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 06 Sep 2009 12:00:56 +0000
parents
children af07d004d320
rev   line source
10
e8626caac353 * Made Artifact life cycle symmetric: setup/endOfLife.
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1 package de.intevation.artifactdatabase;
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2
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3 import javax.sql.DataSource;
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5 import java.sql.SQLException;
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7 import org.apache.commons.dbcp.BasicDataSource;
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8
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9 /**
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10 * @author Sascha L. Teichmann
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11 */
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12 public class DBConnection
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13 {
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14 public static final String DB_DRIVER =
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15 "/artifacts-database/database/driver/text()";
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16 public static final String DB_URL =
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17 "/artifacts-database/database/url/text()";
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18 public static final String DB_USER =
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19 "/artifacts-database/database/driver/user/text()";
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20 public static final String DB_PASSWORD =
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21 "/artifacts-database/database/driver/password()";
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22
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23 public static final String DEFAULT_DRIVER =
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24 "org.h2.Driver";
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25
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26 public static final String DEFAULT_URL =
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27 "jdbc:h2:artifacts.db";
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29 public static final String DEFAULT_USER = "";
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30 public static final String DEFAULT_PASSWORD = "";
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31
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32 private DBConnection() {
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33 }
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35 private static BasicDataSource dataSource;
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36
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37 private static final void addShutdownHook() {
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38 Runtime.getRuntime().addShutdownHook(new Thread() {
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39 public void run() {
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40 if (dataSource != null) {
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41 try {
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42 dataSource.close();
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43 }
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44 catch (SQLException sqle) {
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45 }
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46 dataSource = null;
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47 }
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48 }
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49 });
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50 }
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52 public static synchronized DataSource getDataSource() {
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53 if (dataSource == null) {
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54 dataSource = new BasicDataSource();
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56 String driver = Config.getStringXPath(
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57 DB_DRIVER, DEFAULT_DRIVER);
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59 String url = Config.getStringXPath(
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60 DB_URL, DEFAULT_URL);
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61
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62 String user = Config.getStringXPath(
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63 DB_USER, DEFAULT_USER);
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65 String password = Config.getStringXPath(
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66 DB_PASSWORD, DEFAULT_PASSWORD);
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67
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68 dataSource.setDriverClassName(driver);
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69 dataSource.setUsername(user);
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70 dataSource.setPassword(password);
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71 dataSource.setUrl(url);
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72 addShutdownHook();
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73 }
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75 return dataSource;
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76 }
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77 }
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78 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org