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