src/main/java/eu/svjatoslav/instantlauncher/configuration/ConfigurationManager.java

   1 package eu.svjatoslav.instantlauncher.configuration;
   2
   3 import com.esotericsoftware.yamlbeans.YamlReader;
   4 import com.esotericsoftware.yamlbeans.YamlWriter;
   5
   6 import java.io.*;
   7 import java.util.HashSet;
   8 import java.util.Map;
   9
  10 public class ConfigurationManager {
  11
  12     private static final String CONFIG_FILE_NAME = ".instantlauncher";
  13
  14     private boolean propertiesChanged = false;
  15
  16     public Configuration getConfiguration() {
  17         return configuration;
  18     }
  19
  20     private Configuration configuration;
  21
  22     public ConfigurationManager() throws IOException {
  23         initialize();
  24     }
  25
  26     private File getPropertiesFile() {
  27         return new File(System.getProperty("user.home") + "/" + CONFIG_FILE_NAME);
  28     }
  29
  30     public File getNavigationRootDirectory() {
  31         if (configuration.navigationRootPath == null){
  32             configuration.navigationRootPath = System.getProperty("user.home") + "/";
  33             propertiesChanged = true;
  34             registerDefaultAssociations();
  35         }
  36
  37         return new File(configuration.navigationRootPath);
  38     }
  39
  40     private void initialize() throws IOException {
  41
  42         loadIfFileExists();
  43
  44         validatePropertiesFile();
  45
  46         if (propertiesChanged) {
  47             saveFile();
  48         }
  49     }
  50
  51     private void loadIfFileExists() throws IOException {
  52         final File propertiesFile = getPropertiesFile();
  53         if (!propertiesFile.exists())
  54             return;
  55
  56         YamlReader reader = new YamlReader(new FileReader(propertiesFile));
  57         configuration = reader.read(Configuration.class);
  58         if (configuration == null) {
  59             configuration = new Configuration();
  60             configuration.fileAssociations = new HashSet<>();
  61         };
  62     }
  63
  64     private void saveFile() throws IOException {
  65         YamlWriter writer = new YamlWriter(new FileWriter(getPropertiesFile()));
  66         writer.write(configuration);
  67         writer.close();
  68     }
  69
  70     private void validatePropertiesFile() {
  71         getNavigationRootDirectory();
  72     }
  73
  74     private void registerFileAssociation(String fileRegex, String command){
  75         FileAssociation association = new FileAssociation(fileRegex, command);
  76         configuration.fileAssociations.add(association);
  77         propertiesChanged = true;
  78     }
  79
  80
  81     private void registerDefaultAssociations(){
  82         registerFileAssociation(".jpeg$", "eog {file}");
  83     }
  84 }