Mercurial > dive4elements > gnv-client
comparison gnv/src/main/java/de/intevation/gnv/propertiesreader/ServletPropertiesReader.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 | ad381cc47217 |
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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.Enumeration; | |
| 7 import java.util.HashMap; | |
| 8 import java.util.Map; | |
| 9 | |
| 10 import javax.servlet.ServletConfig; | |
| 11 | |
| 12 import org.apache.log4j.Logger; | |
| 13 | |
| 14 /** | |
| 15 * @author Tim Englich <tim.englich@intevation.de> | |
| 16 * | |
| 17 */ | |
| 18 public class ServletPropertiesReader implements PropertiesReader { | |
| 19 | |
| 20 /** | |
| 21 * the logger, used to log exceptions and additonaly information | |
| 22 */ | |
| 23 private static Logger log = Logger.getLogger(ServletPropertiesReader.class); | |
| 24 | |
| 25 private Map<String,String> properties = null; | |
| 26 /** | |
| 27 * Constructor | |
| 28 */ | |
| 29 public ServletPropertiesReader(ServletConfig config) { | |
| 30 super(); | |
| 31 log.info("ServletPropertiesReader will be initialized"); | |
| 32 if (config != null){ | |
| 33 | |
| 34 Enumeration<String> keys = config.getInitParameterNames(); | |
| 35 properties = new HashMap<String, String>(); | |
| 36 while(keys.hasMoreElements()){ | |
| 37 String key = keys.nextElement(); | |
| 38 String value = config.getInitParameter(key); | |
| 39 log.info("New ConbfigurationValue; "+ key + " ==> "+ value); | |
| 40 this.properties.put(key, value); | |
| 41 } | |
| 42 } | |
| 43 } | |
| 44 | |
| 45 /** | |
| 46 * @see de.intevation.gnv.propertiesreader.PropertiesReader#getPropertieValue(java.lang.String, java.lang.String) | |
| 47 */ | |
| 48 public String getPropertieValue(String key, String defaultValue) { | |
| 49 String value = this.properties.get(key); | |
| 50 if (value == null){ | |
| 51 value = defaultValue; | |
| 52 } | |
| 53 return value; | |
| 54 } | |
| 55 | |
| 56 } |