Mercurial > dive4elements > gnv-client
comparison gnv/src/main/java/de/intevation/gnv/propertiesreader/PropertiesReaderFactory.java @ 3:d7b4a77ba892
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 |
| parents | |
| children | fe6a64545552 |
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| 2:5e94403971af | 3:d7b4a77ba892 |
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| 1 /** | |
| 2 * | |
| 3 */ | |
| 4 package de.intevation.gnv.propertiesreader; | |
| 5 | |
| 6 import java.util.Map; | |
| 7 | |
| 8 import javax.servlet.ServletConfig; | |
| 9 | |
| 10 import org.apache.log4j.Logger; | |
| 11 | |
| 12 /** | |
| 13 * @author Tim Englich <tim.englich@intevation.de> | |
| 14 * | |
| 15 */ | |
| 16 public class PropertiesReaderFactory { | |
| 17 | |
| 18 | |
| 19 | |
| 20 /** | |
| 21 * the logger, used to log exceptions and additonaly information | |
| 22 */ | |
| 23 private static Logger log = Logger.getLogger(PropertiesReaderFactory.class); | |
| 24 | |
| 25 | |
| 26 /** | |
| 27 * The singleton Instance of this Factory. | |
| 28 */ | |
| 29 private static PropertiesReaderFactory instance = null; | |
| 30 | |
| 31 /** | |
| 32 * The ConnectionPool providing the Connections to the DatabaseBackends | |
| 33 */ | |
| 34 private PropertiesReader propertiesReader = null; | |
| 35 /** | |
| 36 * Constructor | |
| 37 */ | |
| 38 private PropertiesReaderFactory() { | |
| 39 super(); | |
| 40 } | |
| 41 | |
| 42 /** | |
| 43 * This Method provides an singleton Instance of this Class. | |
| 44 * @return an singleton Instance of this Class | |
| 45 */ | |
| 46 public static PropertiesReaderFactory getInstance(){ | |
| 47 if (instance == null){ | |
| 48 instance = null; | |
| 49 } | |
| 50 return instance; | |
| 51 } | |
| 52 | |
| 53 | |
| 54 /** | |
| 55 * Getting the ConnectionPool | |
| 56 * @return the ConnectionPool | |
| 57 */ | |
| 58 public PropertiesReader getPropertiesReader(){ | |
| 59 return this.propertiesReader; | |
| 60 } | |
| 61 | |
| 62 /** | |
| 63 * Getting the ConnectionPool | |
| 64 * @param config The Config that should be read | |
| 65 */ | |
| 66 public void initPropertiesReader(Object config){ | |
| 67 if (config instanceof ServletConfig){ | |
| 68 this.propertiesReader = new ServletPropertiesReader((ServletConfig)config); | |
| 69 }else if (config instanceof Map){ | |
| 70 this.propertiesReader = new MapPropertiesReader((Map<String, String>)config); | |
| 71 }else{ | |
| 72 log.error("No PropertiesReader for Instance "+ config.getClass().getName()); | |
| 73 } | |
| 74 | |
| 75 } | |
| 76 | |
| 77 } |