wordstudent

Word learning program
git clone git://git.wimdupont.com/wordstudent.git
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ApplicationProperties.java (1801B)

      1 package com.wimdupont.config;
      2 
      3 import java.io.IOException;
      4 import java.io.InputStream;
      5 import java.util.MissingResourceException;
      6 import java.util.Properties;
      7 
      8 public class ApplicationProperties {
      9 
     10     private static ApplicationProperties instance;
     11     private final String couchdbUrl;
     12     private final String dictionaryClientUrl;
     13     private final String wordCsvDir;
     14 
     15     public String getDictionaryClientUrl() {
     16         return dictionaryClientUrl;
     17     }
     18 
     19     public String getCouchdbUrl() {
     20         return couchdbUrl;
     21     }
     22 
     23     public String getWordCsvDir() {
     24         return wordCsvDir;
     25     }
     26 
     27     private ApplicationProperties() {
     28         Properties properties = loadProperties();
     29         couchdbUrl = properties.getProperty("couchdb.connection-url");
     30         dictionaryClientUrl = properties.getProperty("dictionary.client.connection-url");
     31         wordCsvDir = properties.getProperty("csv.dir");
     32         if (couchdbUrl == null | dictionaryClientUrl == null | wordCsvDir == null)
     33             throw new RuntimeException("Properties missing.");
     34     }
     35 
     36     public static ApplicationProperties getInstance() {
     37         if (instance == null) {
     38             instance = new ApplicationProperties();
     39         }
     40 
     41         return instance;
     42     }
     43 
     44     private Properties loadProperties() {
     45         final Properties properties = new Properties();
     46         InputStream inputStream = getClass().getResourceAsStream("/application.properties");
     47         try {
     48             if (inputStream == null) {
     49                 throw new IOException();
     50             }
     51             properties.load(inputStream);
     52         } catch (IOException e) {
     53             throw new MissingResourceException("Missing application properties", Properties.class.getSimpleName(), "application.properties");
     54         }
     55         return properties;
     56     }
     57 }