Config


1   /*
2    * Created on 29-Dec-2004
3    */
4   package uk.ac.roe.antigen.utils;
5   
6   import java.io.IOException  ;
7   import java.util.Properties  ;
8   import java.util.logging.Logger  ;
9   
10  /**
11   * Make Properties globally available by wrapping a Properties with a static class
12   * @author jdt
13   */
14  public class Config {
15      /**
16       * Logger for this class
17       */
18      private static final Logger   logger = Logger.getLogger(Config.class.getName());
19  
20  
21      private static Properties   props = new Properties  ();
22      public static void load(String   path) {
23          logger.fine("Loading properties off classpath from "+path);
24          try {
25              props.load(Config.class.getResourceAsStream(path));
26          } catch (Exception   e) {
27              logger.severe("Unable to load configuration file ...aborting.");
28              throw new RuntimeException  ("Unable to load properties",e);
29          }
30      }
31      /**
32       * Returns null if the property is the empty string
33       * @param name property key
34       * @return the property with key name
35       */
36      public static String   getProperty(String   name) {
37          String   property = props.getProperty(name);
38          if (property=="") property=null;
39          return property;
40      }
41      /**
42       * Returns the property from the props file, or the default if the property is null or the empty string
43       * @param name property key
44       * @param defolt default value
45       * @return property value
46       */
47      public static String   getProperty(String   name, String   defolt) {
48          String   value = getProperty(name);
49          return value !=null ? value : defolt;
50      }
51      /**
52       * Add in a property.  And why not.
53       * @param key key
54       * @param value value
55       */
56      public static void setProperty(String   key, String   value) {
57          props.setProperty(key, value);
58      }
59  
60  }
61
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