totpgenerator

TOTP code generator
git clone git://git.wimdupont.com/totpgenerator.git
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ApplicationProperties.java (1603B)


      1 package com.wimdupont.service;
      2 
      3 import java.io.IOException;
      4 import java.security.InvalidParameterException;
      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 dirPath;
     12     private final String secretFile;
     13 
     14     public String getDirPath() {
     15         return dirPath;
     16     }
     17 
     18     public String getSecretFile() {
     19         return secretFile;
     20     }
     21 
     22     public static ApplicationProperties getInstance() {
     23         if (instance == null) {
     24             instance = new ApplicationProperties();
     25         }
     26 
     27         return instance;
     28     }
     29 
     30     private ApplicationProperties(){
     31         var properties = loadProperties();
     32         dirPath = properties.getProperty("dir.path");
     33         secretFile = properties.getProperty("secret.file");
     34 
     35         if (dirPath == null | secretFile == null) {
     36             throw new InvalidParameterException("Properties missing.");
     37         }
     38     }
     39 
     40     private Properties loadProperties() {
     41         final var properties = new Properties();
     42         var inputStream = getClass().getResourceAsStream("/application.properties");
     43         try {
     44             if (inputStream == null) {
     45                 throw new IOException();
     46             }
     47             properties.load(inputStream);
     48         } catch (IOException e) {
     49             throw new MissingResourceException(
     50                     "Missing application properties",
     51                     Properties.class.getSimpleName(),
     52                     "application.properties");
     53         }
     54         return properties;
     55     }
     56 }