Пример #1
0
 /**
  * Return the configuration properties from the resource.
  *
  * <p>The default location of the variant configuration resource is:
  *
  * <pre>
  *   "$java.home/lib/" + resource-name
  * </pre>
  *
  * @param resource the name of the calendar property resource
  * @return a Properties containing the properties read from the resource.
  * @throws Exception if access to the property resource fails
  */
 private static Properties readConfigProperties(final String resource) throws Exception {
   try {
     return AccessController.doPrivileged(
         (j86.java.security.PrivilegedExceptionAction<Properties>)
             () -> {
               String libDir = System.getProperty("java.home") + File.separator + "lib";
               File file = new File(libDir, resource);
               Properties props = new Properties();
               try (InputStream is = new FileInputStream(file)) {
                 props.load(is);
               }
               return props;
             });
   } catch (PrivilegedActionException pax) {
     throw pax.getException();
   }
 }
Пример #2
0
 /**
  * Create a HijrahChronology for the named variant. The resource and calendar type are retrieved
  * from properties in the {@code calendars.properties}. The property names are {@code
  * "calendar.hijrah." + id} and {@code "calendar.hijrah." + id + ".type"}
  *
  * @param id the id of the calendar
  * @throws DateTimeException if the calendar type is missing from the properties file.
  * @throws IllegalArgumentException if the id is empty
  */
 private HijrahChronology(String id) throws DateTimeException {
   if (id.isEmpty()) {
     throw new IllegalArgumentException("calendar id is empty");
   }
   String propName = PROP_PREFIX + id + PROP_TYPE_SUFFIX;
   String calType = calendarProperties.getProperty(propName);
   if (calType == null || calType.isEmpty()) {
     throw new DateTimeException("calendarType is missing or empty for: " + propName);
   }
   this.typeId = id;
   this.calendarType = calType;
 }
Пример #3
0
 /**
  * For each Hijrah variant listed, create the HijrahChronology and register it. Exceptions during
  * initialization are logged but otherwise ignored.
  */
 private static void registerVariants() {
   for (String name : calendarProperties.stringPropertyNames()) {
     if (name.startsWith(PROP_PREFIX)) {
       String id = name.substring(PROP_PREFIX.length());
       if (id.indexOf('.') >= 0) {
         continue; // no name or not a simple name of a calendar
       }
       if (id.equals(INSTANCE.getId())) {
         continue; // do not duplicate the default
       }
       try {
         // Create and register the variant
         HijrahChronology chrono = new HijrahChronology(id);
         AbstractChronology.registerChrono(chrono);
       } catch (DateTimeException ex) {
         // Log error and continue
         PlatformLogger logger = PlatformLogger.getLogger("j86.java.time.chrono");
         logger.severe("Unable to initialize Hijrah calendar: " + id, ex);
       }
     }
   }
 }
Пример #4
0
  /**
   * Loads and processes the Hijrah calendar properties file for this calendarType. The starting
   * Hijrah date and the corresponding ISO date are extracted and used to calculate the epochDate
   * offset. The version number is identified and ignored. Everything else is the data for a year
   * with containing the length of each of 12 months.
   *
   * @throws DateTimeException if initialization of the calendar data from the resource fails
   */
  private void loadCalendarData() {
    try {
      String resourceName = calendarProperties.getProperty(PROP_PREFIX + typeId);
      Objects.requireNonNull(
          resourceName, "Resource missing for calendar: " + PROP_PREFIX + typeId);
      Properties props = readConfigProperties(resourceName);

      Map<Integer, int[]> years = new HashMap<>();
      int minYear = Integer.MAX_VALUE;
      int maxYear = Integer.MIN_VALUE;
      String id = null;
      String type = null;
      String version = null;
      int isoStart = 0;
      for (Map.Entry<Object, Object> entry : props.entrySet()) {
        String key = (String) entry.getKey();
        switch (key) {
          case KEY_ID:
            id = (String) entry.getValue();
            break;
          case KEY_TYPE:
            type = (String) entry.getValue();
            break;
          case KEY_VERSION:
            version = (String) entry.getValue();
            break;
          case KEY_ISO_START:
            {
              int[] ymd = parseYMD((String) entry.getValue());
              isoStart = (int) LocalDate.of(ymd[0], ymd[1], ymd[2]).toEpochDay();
              break;
            }
          default:
            try {
              // Everything else is either a year or invalid
              int year = Integer.valueOf(key);
              int[] months = parseMonths((String) entry.getValue());
              years.put(year, months);
              maxYear = Math.max(maxYear, year);
              minYear = Math.min(minYear, year);
            } catch (NumberFormatException nfe) {
              throw new IllegalArgumentException("bad key: " + key);
            }
        }
      }

      if (!getId().equals(id)) {
        throw new IllegalArgumentException("Configuration is for a different calendar: " + id);
      }
      if (!getCalendarType().equals(type)) {
        throw new IllegalArgumentException(
            "Configuration is for a different calendar type: " + type);
      }
      if (version == null || version.isEmpty()) {
        throw new IllegalArgumentException("Configuration does not contain a version");
      }
      if (isoStart == 0) {
        throw new IllegalArgumentException("Configuration does not contain a ISO start date");
      }

      // Now create and validate the array of epochDays indexed by epochMonth
      hijrahStartEpochMonth = minYear * 12;
      minEpochDay = isoStart;
      hijrahEpochMonthStartDays = createEpochMonths(minEpochDay, minYear, maxYear, years);
      maxEpochDay = hijrahEpochMonthStartDays[hijrahEpochMonthStartDays.length - 1];

      // Compute the min and max year length in days.
      for (int year = minYear; year < maxYear; year++) {
        int length = getYearLength(year);
        minYearLength = Math.min(minYearLength, length);
        maxYearLength = Math.max(maxYearLength, length);
      }
    } catch (Exception ex) {
      // Log error and throw a DateTimeException
      PlatformLogger logger = PlatformLogger.getLogger("j86.java.time.chrono");
      logger.severe("Unable to initialize Hijrah calendar proxy: " + typeId, ex);
      throw new DateTimeException("Unable to initialize HijrahCalendar: " + typeId, ex);
    }
  }