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annotate gnv/src/main/java/de/intevation/gnv/propertiesreader/PropertiesReaderFactory.java @ 3:d7b4a77ba892

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Infrastructur for Providing Applicationsettings gnv/trunk@72 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Fri, 11 Sep 2009 15:19:52 +0000
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children fe6a64545552
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d7b4a77ba892 Infrastructur for Providing Applicationsettings
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.propertiesreader;
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5
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6 import java.util.Map;
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7
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8 import javax.servlet.ServletConfig;
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9
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10 import org.apache.log4j.Logger;
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11
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12 /**
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13 * @author Tim Englich <tim.englich@intevation.de>
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14 *
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15 */
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16 public class PropertiesReaderFactory {
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17
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18
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19
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20 /**
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21 * the logger, used to log exceptions and additonaly information
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22 */
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23 private static Logger log = Logger.getLogger(PropertiesReaderFactory.class);
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24
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25
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26 /**
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27 * The singleton Instance of this Factory.
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28 */
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29 private static PropertiesReaderFactory instance = null;
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30
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31 /**
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32 * The ConnectionPool providing the Connections to the DatabaseBackends
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33 */
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34 private PropertiesReader propertiesReader = null;
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35 /**
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36 * Constructor
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37 */
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38 private PropertiesReaderFactory() {
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39 super();
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40 }
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41
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42 /**
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43 * This Method provides an singleton Instance of this Class.
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44 * @return an singleton Instance of this Class
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45 */
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46 public static PropertiesReaderFactory getInstance(){
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47 if (instance == null){
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48 instance = null;
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49 }
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50 return instance;
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51 }
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52
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53
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54 /**
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55 * Getting the ConnectionPool
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56 * @return the ConnectionPool
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57 */
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58 public PropertiesReader getPropertiesReader(){
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59 return this.propertiesReader;
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60 }
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61
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62 /**
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63 * Getting the ConnectionPool
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64 * @param config The Config that should be read
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65 */
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66 public void initPropertiesReader(Object config){
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67 if (config instanceof ServletConfig){
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68 this.propertiesReader = new ServletPropertiesReader((ServletConfig)config);
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69 }else if (config instanceof Map){
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70 this.propertiesReader = new MapPropertiesReader((Map<String, String>)config);
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71 }else{
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72 log.error("No PropertiesReader for Instance "+ config.getClass().getName());
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73 }
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74
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75 }
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76
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77 }
http://dive4elements.wald.intevation.org