/** * Decode file charset. * * @param f File to process. * @return File charset. * @throws IOException in case of error. */ public static Charset decode(File f) throws IOException { SortedMap<String, Charset> charsets = Charset.availableCharsets(); String[] firstCharsets = { Charset.defaultCharset().name(), "US-ASCII", "UTF-8", "UTF-16BE", "UTF-16LE" }; Collection<Charset> orderedCharsets = U.newLinkedHashSet(charsets.size()); for (String c : firstCharsets) if (charsets.containsKey(c)) orderedCharsets.add(charsets.get(c)); orderedCharsets.addAll(charsets.values()); try (RandomAccessFile raf = new RandomAccessFile(f, "r")) { FileChannel ch = raf.getChannel(); ByteBuffer buf = ByteBuffer.allocate(4096); ch.read(buf); buf.flip(); for (Charset charset : orderedCharsets) { CharsetDecoder decoder = charset.newDecoder(); decoder.reset(); try { decoder.decode(buf); return charset; } catch (CharacterCodingException ignored) { } } } return Charset.defaultCharset(); }
/** * Parses the binary data that describes the recurrent pattern. * * @param data the binary data. * @param sourceTask the calendar item. */ public RecurringPattern(byte[] data, CalendarItemTimerTask sourceTask) { this.sourceTask = sourceTask; dataBuffer = ByteBuffer.wrap(data).order(ByteOrder.LITTLE_ENDIAN); int offset = 4; recurFrequency = dataBuffer.getShort(offset); offset += 2; patternType = PatternType.getFromShort(dataBuffer.getShort(offset)); offset += 2; calendarType = dataBuffer.getShort(offset); offset += 2; firstDateTime = dataBuffer.getInt(offset); offset += 4; period = dataBuffer.getInt(offset); offset += 4; slidingFlag = dataBuffer.getInt(offset); offset += 4; switch (patternType) { case Week: case Month: case MonthEnd: case HjMonth: case HjMonthEnd: patternSpecific1 = dataBuffer.getInt(offset); patternSpecific2 = 0; offset += 4; if (patternType == PatternType.Week) { for (int day = firstDow; day < firstDow + 7; day++) { if ((patternSpecific1 & (weekOfDayMask[day % 7])) != 0) { allowedDaysOfWeek.add((day % 7) + 1); } } } break; case MonthNth: case HjMonthNth: patternSpecific1 = dataBuffer.getInt(offset); patternSpecific2 = dataBuffer.getInt(offset + 4); if (patternSpecific1 == 0x7f && patternSpecific2 != 0x5) { patternType = PatternType.Month; } for (int day = 0; day < 7; day++) { if ((patternSpecific1 & (weekOfDayMask[day])) != 0) { allowedDaysOfWeek.add((day) + 1); } } offset += 8; break; default: break; } // endType endType = dataBuffer.getInt(offset); offset += 4; occurenceCount = dataBuffer.getInt(offset); offset += 4; firstDow = dataBuffer.getInt(offset); offset += 4; deletedInstanceCount = dataBuffer.getInt(offset); offset += 4; // deleted instances for (int i = 0; i < deletedInstanceCount; i++) { deletedInstances.add(windowsTimeToDateObject(dataBuffer.getInt(offset))); offset += 4; } modifiedInstanceCount = dataBuffer.getInt(offset); offset += 4; // modified instances modifiedInstances = new int[modifiedInstanceCount]; for (int i = 0; i < modifiedInstanceCount; i++) { modifiedInstances[i] = dataBuffer.getInt(offset); offset += 4; } startDate = dataBuffer.getInt(offset); offset += 4; endDate = dataBuffer.getInt(offset); offset += 4; offset += 16; short exceptionCount = dataBuffer.getShort(offset); offset += 2; exceptionInfo = new ArrayList<ExceptionInfo>(exceptionCount); for (int i = 0; i < exceptionCount; i++) { ExceptionInfo tmpExceptionInfo = new ExceptionInfo(offset); exceptionInfo.add(tmpExceptionInfo); offset += tmpExceptionInfo.sizeInBytes(); CalendarService.BusyStatusEnum status = tmpExceptionInfo.getBusyStatus(); Date startTime = tmpExceptionInfo.getStartDate(); Date endTime = tmpExceptionInfo.getEndDate(); if (status == CalendarService.BusyStatusEnum.FREE || startTime == null || endTime == null) continue; Date currentTime = new Date(); if (endTime.before(currentTime) || endTime.equals(currentTime)) return; boolean executeNow = false; if (startTime.before(currentTime) || startTime.equals(currentTime)) executeNow = true; CalendarItemTimerTask task = new CalendarItemTimerTask( status, startTime, endTime, sourceTask.getId(), executeNow, this); task.scheduleTasks(); } }