Examples with RRule net.fortuna.ical4j.model.property.RRule used on opensource projects

Example 11 with RRule

use of net.fortuna.ical4j.model.property.RRule in project openolat by klemens.

the class ICalFileCalendarManager method getVEvent.

private VEvent getVEvent(KalendarEvent kEvent) {
    VEvent vEvent = new VEvent();
    if (!kEvent.isAllDayEvent()) {
        // regular VEvent
        DateTime dtBegin = new DateTime(kEvent.getBegin());
        if (tz != null) {
            dtBegin.setTimeZone(tz);
        }
        Date kEventEnd = kEvent.getEnd();
        if (kEventEnd == null) {
            vEvent = new VEvent(dtBegin, kEvent.getSubject());
        } else {
            DateTime dtEnd = new DateTime(kEventEnd);
            if (tz != null) {
                dtEnd.setTimeZone(tz);
            }
            vEvent = new VEvent(dtBegin, dtEnd, kEvent.getSubject());
        }
    } else {
        // AllDay VEvent
        net.fortuna.ical4j.model.Date dtBegin = CalendarUtils.createDate(kEvent.getBegin());
        // adjust end date: ICal end dates for all day events are on the next day
        Date adjustedEndDate = new Date(kEvent.getEnd().getTime() + (1000 * 60 * 60 * 24));
        net.fortuna.ical4j.model.Date dtEnd = CalendarUtils.createDate(adjustedEndDate);
        vEvent = new VEvent(dtBegin, dtEnd, kEvent.getSubject());
    }
    if (kEvent.getCreated() > 0) {
        Created created = new Created(new DateTime(kEvent.getCreated()));
        vEvent.getProperties().add(created);
    }
    if ((kEvent.getCreatedBy() != null) && !kEvent.getCreatedBy().trim().isEmpty()) {
        Contact contact = new Contact();
        contact.setValue(kEvent.getCreatedBy());
        vEvent.getProperties().add(contact);
    }
    if (kEvent.getLastModified() > 0) {
        LastModified lastMod = new LastModified(new DateTime(kEvent.getLastModified()));
        vEvent.getProperties().add(lastMod);
    }
    // Uid
    PropertyList vEventProperties = vEvent.getProperties();
    vEventProperties.add(new Uid(kEvent.getID()));
    // clazz
    switch(kEvent.getClassification()) {
        case KalendarEvent.CLASS_PRIVATE:
            vEventProperties.add(ICAL_CLASS_PRIVATE);
            break;
        case KalendarEvent.CLASS_PUBLIC:
            vEventProperties.add(ICAL_CLASS_PUBLIC);
            break;
        case KalendarEvent.CLASS_X_FREEBUSY:
            vEventProperties.add(ICAL_CLASS_X_FREEBUSY);
            break;
        default:
            vEventProperties.add(ICAL_CLASS_PRIVATE);
            break;
    }
    // location
    if (kEvent.getLocation() != null) {
        vEventProperties.add(new Location(kEvent.getLocation()));
    }
    if (kEvent.getDescription() != null) {
        vEventProperties.add(new Description(kEvent.getDescription()));
    }
    // event links
    Url urlOnce = null;
    List<KalendarEventLink> kalendarEventLinks = kEvent.getKalendarEventLinks();
    if ((kalendarEventLinks != null) && !kalendarEventLinks.isEmpty()) {
        for (Iterator<KalendarEventLink> iter = kalendarEventLinks.iterator(); iter.hasNext(); ) {
            KalendarEventLink link = iter.next();
            StringBuilder linkEncoded = new StringBuilder(200);
            linkEncoded.append(link.getProvider());
            linkEncoded.append("§");
            linkEncoded.append(link.getId());
            linkEncoded.append("§");
            linkEncoded.append(link.getDisplayName());
            linkEncoded.append("§");
            linkEncoded.append(link.getURI());
            linkEncoded.append("§");
            linkEncoded.append(link.getIconCssClass());
            XProperty linkProperty = new XProperty(ICAL_X_OLAT_LINK, linkEncoded.toString());
            vEventProperties.add(linkProperty);
            if (urlOnce == null) {
                try {
                    Url url = new Url();
                    url.setValue(link.getURI());
                    urlOnce = url;
                } catch (URISyntaxException e) {
                    log.error("Invalid URL:" + link.getURI());
                }
            }
        }
    }
    if (urlOnce != null) {
        vEventProperties.add(urlOnce);
    }
    if (kEvent.getComment() != null) {
        vEventProperties.add(new XProperty(ICAL_X_OLAT_COMMENT, kEvent.getComment()));
    }
    if (kEvent.getNumParticipants() != null) {
        vEventProperties.add(new XProperty(ICAL_X_OLAT_NUMPARTICIPANTS, Integer.toString(kEvent.getNumParticipants())));
    }
    if (kEvent.getParticipants() != null) {
        StringBuilder strBuf = new StringBuilder();
        String[] participants = kEvent.getParticipants();
        for (String participant : participants) {
            strBuf.append(participant);
            strBuf.append("§");
        }
        vEventProperties.add(new XProperty(ICAL_X_OLAT_PARTICIPANTS, strBuf.toString()));
    }
    if (kEvent.getSourceNodeId() != null) {
        vEventProperties.add(new XProperty(ICAL_X_OLAT_SOURCENODEID, kEvent.getSourceNodeId()));
    }
    if (kEvent.getManagedFlags() != null) {
        String val = CalendarManagedFlag.toString(kEvent.getManagedFlags());
        vEventProperties.add(new XProperty(ICAL_X_OLAT_MANAGED, val));
    }
    if (StringHelper.containsNonWhitespace(kEvent.getExternalId())) {
        vEventProperties.add(new XProperty(ICAL_X_OLAT_EXTERNAL_ID, kEvent.getExternalId()));
    }
    if (StringHelper.containsNonWhitespace(kEvent.getExternalSource())) {
        vEventProperties.add(new XProperty(ICAL_X_OLAT_EXTERNAL_SOURCE, kEvent.getExternalSource()));
    }
    String recurenceId = kEvent.getRecurrenceID();
    if (StringHelper.containsNonWhitespace(recurenceId)) {
        try {
            RecurrenceId recurId = new RecurrenceId(tz);
            // VALUE=DATE recurrence id need to be specially saved
            if (recurenceId.length() < 9) {
                recurId = new RecurrenceId(tz);
                recurId.setDate(CalendarUtils.createDate(new net.fortuna.ical4j.model.Date(recurenceId)));
            } else {
                recurId = new RecurrenceId(recurenceId, tz);
            }
            vEventProperties.add(recurId);
        } catch (ParseException e) {
            log.error("cannot create recurrence ID: " + recurenceId, e);
        }
    }
    // recurrence
    String recurrence = kEvent.getRecurrenceRule();
    if (recurrence != null && !recurrence.equals("")) {
        try {
            Recur recur = new Recur(recurrence);
            RRule rrule = new RRule(recur);
            vEventProperties.add(rrule);
        } catch (ParseException e) {
            log.error("cannot create recurrence rule: " + recurrence.toString(), e);
        }
    }
    // recurrence exclusions
    String recurrenceExc = kEvent.getRecurrenceExc();
    if (recurrenceExc != null && !recurrenceExc.equals("")) {
        ExDate exdate = new ExDate();
        try {
            exdate.setValue(recurrenceExc);
            vEventProperties.add(exdate);
        } catch (ParseException e) {
            log.error("", e);
        }
    }
    return vEvent;
}

Example 12 with RRule

use of net.fortuna.ical4j.model.property.RRule in project openolat by klemens.

the class ICalFileCalendarManager method getRecurrenceRule.

/**
 * Build iCalendar-compliant recurrence rule
 * @param recurrence
 * @param recurrenceEnd
 * @return rrule
 */
@Override
public String getRecurrenceRule(String recurrence, Date recurrenceEnd) {
    if (recurrence != null) {
        // recurrence available
        // create recurrence rule
        StringBuilder sb = new StringBuilder();
        sb.append("FREQ=");
        if (recurrence.equals(KalendarEvent.WORKDAILY)) {
            // build rule for monday to friday
            sb.append(KalendarEvent.DAILY).append(";").append("BYDAY=MO,TU,WE,TH,FR");
        } else if (recurrence.equals(KalendarEvent.BIWEEKLY)) {
            // build rule for biweekly
            sb.append(KalendarEvent.WEEKLY).append(";").append("INTERVAL=2");
        } else {
            // normal supported recurrence
            sb.append(recurrence);
        }
        if (recurrenceEnd != null) {
            java.util.Calendar recurEndCal = java.util.Calendar.getInstance();
            recurEndCal.setTimeZone(tz);
            recurEndCal.setTime(recurrenceEnd);
            recurEndCal = CalendarUtils.getEndOfDay(recurEndCal);
            long recTime = recurEndCal.getTimeInMillis() - tz.getOffset(recurEndCal.getTimeInMillis());
            DateTime recurEndDT = new DateTime(recTime);
            if (tz != null) {
                recurEndDT.setTimeZone(tz);
            }
            sb.append(";").append(KalendarEvent.UNTIL).append("=").append(recurEndDT.toString());
        }
        try {
            Recur recur = new Recur(sb.toString());
            RRule rrule = new RRule(recur);
            return rrule.getValue();
        } catch (ParseException e) {
            log.error("cannot create recurrence rule: " + recurrence.toString(), e);
        }
    }
    return null;
}

Example 13 with RRule

use of net.fortuna.ical4j.model.property.RRule in project OpenOLAT by OpenOLAT.

the class ICalFileCalendarManager method removeFutureOfEvent.

@Override
public boolean removeFutureOfEvent(Kalendar cal, KalendarRecurEvent kalendarEvent) {
    OLATResourceable calOres = getOresHelperFor(cal);
    Boolean removeSuccessful = CoordinatorManager.getInstance().getCoordinator().getSyncer().doInSync(calOres, new SyncerCallback<Boolean>() {

        @Override
        public Boolean execute() {
            boolean successfullyPersist = false;
            try {
                String uid = kalendarEvent.getID();
                Date occurenceDate = kalendarEvent.getOccurenceDate();
                Kalendar loadedCal = getCalendarFromCache(cal.getType(), cal.getCalendarID());
                KalendarEvent rootEvent = loadedCal.getEvent(kalendarEvent.getID(), null);
                String rRule = rootEvent.getRecurrenceRule();
                Recur recur = new Recur(rRule);
                recur.setUntil(CalendarUtils.createDate(occurenceDate));
                RRule rrule = new RRule(recur);
                rootEvent.setRecurrenceRule(rrule.getValue());
                for (KalendarEvent kEvent : loadedCal.getEvents()) {
                    if (uid.equals(kEvent.getID()) && StringHelper.containsNonWhitespace(kEvent.getRecurrenceID()) && occurenceDate.before(kEvent.getBegin())) {
                        loadedCal.removeEvent(kEvent);
                    }
                }
                successfullyPersist = persistCalendar(loadedCal);
            } catch (ParseException e) {
                log.error("", e);
            }
            return new Boolean(successfullyPersist);
        }
    });
    // inform all controller about calendar change for reload
    CoordinatorManager.getInstance().getCoordinator().getEventBus().fireEventToListenersOf(new CalendarGUIModifiedEvent(cal), OresHelper.lookupType(CalendarManager.class));
    return removeSuccessful.booleanValue();
}

Example 14 with RRule

use of net.fortuna.ical4j.model.property.RRule in project OpenOLAT by OpenOLAT.

the class ICalFileCalendarManager method getVEvent.

private VEvent getVEvent(KalendarEvent kEvent) {
    VEvent vEvent = new VEvent();
    if (!kEvent.isAllDayEvent()) {
        // regular VEvent
        DateTime dtBegin = new DateTime(kEvent.getBegin());
        if (tz != null) {
            dtBegin.setTimeZone(tz);
        }
        Date kEventEnd = kEvent.getEnd();
        if (kEventEnd == null) {
            vEvent = new VEvent(dtBegin, kEvent.getSubject());
        } else {
            DateTime dtEnd = new DateTime(kEventEnd);
            if (tz != null) {
                dtEnd.setTimeZone(tz);
            }
            vEvent = new VEvent(dtBegin, dtEnd, kEvent.getSubject());
        }
    } else {
        // AllDay VEvent
        net.fortuna.ical4j.model.Date dtBegin = CalendarUtils.createDate(kEvent.getBegin());
        // adjust end date: ICal end dates for all day events are on the next day
        Date adjustedEndDate = new Date(kEvent.getEnd().getTime() + (1000 * 60 * 60 * 24));
        net.fortuna.ical4j.model.Date dtEnd = CalendarUtils.createDate(adjustedEndDate);
        vEvent = new VEvent(dtBegin, dtEnd, kEvent.getSubject());
    }
    if (kEvent.getCreated() > 0) {
        Created created = new Created(new DateTime(kEvent.getCreated()));
        vEvent.getProperties().add(created);
    }
    if ((kEvent.getCreatedBy() != null) && !kEvent.getCreatedBy().trim().isEmpty()) {
        Contact contact = new Contact();
        contact.setValue(kEvent.getCreatedBy());
        vEvent.getProperties().add(contact);
    }
    if (kEvent.getLastModified() > 0) {
        LastModified lastMod = new LastModified(new DateTime(kEvent.getLastModified()));
        vEvent.getProperties().add(lastMod);
    }
    // Uid
    PropertyList vEventProperties = vEvent.getProperties();
    vEventProperties.add(new Uid(kEvent.getID()));
    // clazz
    switch(kEvent.getClassification()) {
        case KalendarEvent.CLASS_PRIVATE:
            vEventProperties.add(ICAL_CLASS_PRIVATE);
            break;
        case KalendarEvent.CLASS_PUBLIC:
            vEventProperties.add(ICAL_CLASS_PUBLIC);
            break;
        case KalendarEvent.CLASS_X_FREEBUSY:
            vEventProperties.add(ICAL_CLASS_X_FREEBUSY);
            break;
        default:
            vEventProperties.add(ICAL_CLASS_PRIVATE);
            break;
    }
    // location
    if (kEvent.getLocation() != null) {
        vEventProperties.add(new Location(kEvent.getLocation()));
    }
    if (kEvent.getDescription() != null) {
        vEventProperties.add(new Description(kEvent.getDescription()));
    }
    // event links
    Url urlOnce = null;
    List<KalendarEventLink> kalendarEventLinks = kEvent.getKalendarEventLinks();
    if ((kalendarEventLinks != null) && !kalendarEventLinks.isEmpty()) {
        for (Iterator<KalendarEventLink> iter = kalendarEventLinks.iterator(); iter.hasNext(); ) {
            KalendarEventLink link = iter.next();
            StringBuilder linkEncoded = new StringBuilder(200);
            linkEncoded.append(link.getProvider());
            linkEncoded.append("§");
            linkEncoded.append(link.getId());
            linkEncoded.append("§");
            linkEncoded.append(link.getDisplayName());
            linkEncoded.append("§");
            linkEncoded.append(link.getURI());
            linkEncoded.append("§");
            linkEncoded.append(link.getIconCssClass());
            XProperty linkProperty = new XProperty(ICAL_X_OLAT_LINK, linkEncoded.toString());
            vEventProperties.add(linkProperty);
            if (urlOnce == null) {
                try {
                    Url url = new Url();
                    url.setValue(link.getURI());
                    urlOnce = url;
                } catch (URISyntaxException e) {
                    log.error("Invalid URL:" + link.getURI());
                }
            }
        }
    }
    if (urlOnce != null) {
        vEventProperties.add(urlOnce);
    }
    if (kEvent.getComment() != null) {
        vEventProperties.add(new XProperty(ICAL_X_OLAT_COMMENT, kEvent.getComment()));
    }
    if (kEvent.getNumParticipants() != null) {
        vEventProperties.add(new XProperty(ICAL_X_OLAT_NUMPARTICIPANTS, Integer.toString(kEvent.getNumParticipants())));
    }
    if (kEvent.getParticipants() != null) {
        StringBuilder strBuf = new StringBuilder();
        String[] participants = kEvent.getParticipants();
        for (String participant : participants) {
            strBuf.append(participant);
            strBuf.append("§");
        }
        vEventProperties.add(new XProperty(ICAL_X_OLAT_PARTICIPANTS, strBuf.toString()));
    }
    if (kEvent.getSourceNodeId() != null) {
        vEventProperties.add(new XProperty(ICAL_X_OLAT_SOURCENODEID, kEvent.getSourceNodeId()));
    }
    if (kEvent.getManagedFlags() != null) {
        String val = CalendarManagedFlag.toString(kEvent.getManagedFlags());
        vEventProperties.add(new XProperty(ICAL_X_OLAT_MANAGED, val));
    }
    if (StringHelper.containsNonWhitespace(kEvent.getExternalId())) {
        vEventProperties.add(new XProperty(ICAL_X_OLAT_EXTERNAL_ID, kEvent.getExternalId()));
    }
    if (StringHelper.containsNonWhitespace(kEvent.getExternalSource())) {
        vEventProperties.add(new XProperty(ICAL_X_OLAT_EXTERNAL_SOURCE, kEvent.getExternalSource()));
    }
    String recurenceId = kEvent.getRecurrenceID();
    if (StringHelper.containsNonWhitespace(recurenceId)) {
        try {
            RecurrenceId recurId = new RecurrenceId(tz);
            // VALUE=DATE recurrence id need to be specially saved
            if (recurenceId.length() < 9) {
                recurId = new RecurrenceId(tz);
                recurId.setDate(CalendarUtils.createDate(new net.fortuna.ical4j.model.Date(recurenceId)));
            } else {
                recurId = new RecurrenceId(recurenceId, tz);
            }
            vEventProperties.add(recurId);
        } catch (ParseException e) {
            log.error("cannot create recurrence ID: " + recurenceId, e);
        }
    }
    // recurrence
    String recurrence = kEvent.getRecurrenceRule();
    if (recurrence != null && !recurrence.equals("")) {
        try {
            Recur recur = new Recur(recurrence);
            RRule rrule = new RRule(recur);
            vEventProperties.add(rrule);
        } catch (ParseException e) {
            log.error("cannot create recurrence rule: " + recurrence.toString(), e);
        }
    }
    // recurrence exclusions
    String recurrenceExc = kEvent.getRecurrenceExc();
    if (recurrenceExc != null && !recurrenceExc.equals("")) {
        ExDate exdate = new ExDate();
        try {
            exdate.setValue(recurrenceExc);
            vEventProperties.add(exdate);
        } catch (ParseException e) {
            log.error("", e);
        }
    }
    return vEvent;
}

Example 15 with RRule

use of net.fortuna.ical4j.model.property.RRule in project zm-mailbox by Zimbra.

the class RecurrenceDefinition method icalRecurrenceProperty.

/**
 * @param isAllDay
 * @param isFloating
 * @return The main recurrence property as ICAL - typically an RRULE but
 *         could theoretically be an X-MICROSOFT-RRULE
 * @throws ServiceException
 */
public Property icalRecurrenceProperty(boolean isAllDay, boolean isFloating) throws ServiceException {
    RRule theRule = null;
    if (this.calScale.isSolarCalendar() == false) {
        throw TNEFtoIcalendarServiceException.NON_SOLAR_CALENDAR();
    }
    // iCal4j Recur is a bit basic when it come to building things
    // up from components, for instance, there currently isn't a way
    // to set any BYDAY= value other than in the constructor from a String
    StringBuffer recurrenceRule = new StringBuffer("FREQ=");
    // According to RFC, only absolutely NEED WKST of have a
    // weekly recurrence with interval greater than 1 OR using
    // BYWEEKNO - however, does no harm to always include it.
    String weekStartDay = firstDayOfWeek.toString();
    boolean hasBYDAY = false;
    boolean isYearly = false;
    int interval = 1;
    switch(patternType) {
        case DAY:
            recurrenceRule.append(Recur.DAILY);
            interval = Long.valueOf(period).intValue() / 1440;
            break;
        case WEEK:
            recurrenceRule.append(Recur.WEEKLY);
            interval = Long.valueOf(period).intValue();
            hasBYDAY = true;
            break;
        case MONTH:
            interval = Long.valueOf(period).intValue();
            if ((interval % 12) == 0) {
                isYearly = true;
                recurrenceRule.append(Recur.YEARLY);
                interval = (interval / 12);
            } else {
                recurrenceRule.append(Recur.MONTHLY);
            }
            if (dayOfMonth != 0) {
                recurrenceRule.append(";BYMONTHDAY=");
                if (dayOfMonth == 31) {
                    recurrenceRule.append("-1");
                } else {
                    recurrenceRule.append(dayOfMonth);
                }
            }
            if (isYearly) {
                java.util.TimeZone javaTZ = null;
                if (tzDef != null) {
                    javaTZ = tzDef.getTimeZone();
                } else {
                    javaTZ = TimeZone.getTimeZone(TimeZones.UTC_ID);
                }
                Date bymonthDate = IcalUtil.localMinsSince1601toDate(firstDateTime, tzDef);
                Calendar bymonthCal = new GregorianCalendar(javaTZ);
                bymonthCal.setTimeInMillis(bymonthDate.getTime());
                String MONTH_ONLY_PATTERN = "MM";
                DateFormat monthOnlyFormat = new SimpleDateFormat(MONTH_ONLY_PATTERN);
                monthOnlyFormat.setCalendar(bymonthCal);
                recurrenceRule.append(";BYMONTH=");
                recurrenceRule.append(monthOnlyFormat.format(bymonthDate));
            }
            break;
        case MONTH_NTH:
            interval = Long.valueOf(period).intValue();
            if ((interval % 12) == 0) {
                isYearly = true;
                recurrenceRule.append(Recur.YEARLY);
                interval = (interval / 12);
            } else {
                recurrenceRule.append(Recur.MONTHLY);
            }
            hasBYDAY = true;
            recurrenceRule.append(";BYSETPOS=");
            if (weekDayOccurrenceNumber == 5) {
                recurrenceRule.append(-1);
            } else {
                recurrenceRule.append(weekDayOccurrenceNumber);
            }
            if (isYearly) {
                java.util.TimeZone javaTZ = null;
                if (tzDef != null) {
                    javaTZ = tzDef.getTimeZone();
                } else {
                    javaTZ = TimeZone.getTimeZone(TimeZones.UTC_ID);
                }
                Date bymonthDate = IcalUtil.localMinsSince1601toDate(firstDateTime, tzDef);
                Calendar bymonthCal = new GregorianCalendar(javaTZ);
                bymonthCal.setTimeInMillis(bymonthDate.getTime());
                String MONTH_ONLY_PATTERN = "MM";
                DateFormat monthOnlyFormat = new SimpleDateFormat(MONTH_ONLY_PATTERN);
                monthOnlyFormat.setCalendar(bymonthCal);
                recurrenceRule.append(";BYMONTH=");
                recurrenceRule.append(monthOnlyFormat.format(bymonthDate));
            }
            break;
        case MONTH_END:
        case HJ_MONTH:
        case HJ_MONTH_END:
        case HJ_MONTH_NTH:
            throw TNEFtoIcalendarServiceException.UNSUPPORTED_RECURRENCE_TYPE(patternType.name());
        default:
            throw TNEFtoIcalendarServiceException.UNSUPPORTED_RECURRENCE_TYPE(patternType.name());
    }
    if (recurrenceRule.length() > 5) /* length of "FREQ=" */
    {
        if (endType.equals(EndType.END_AFTER_N_OCCURRENCES)) {
            recurrenceRule.append(";COUNT=");
            recurrenceRule.append(occurrenceCount);
        } else if (endType.equals(EndType.END_BY_DATE)) {
            // MS-OXCICAL :
            // set to (EndDate + startTimeOffset), converted from the
            // time zone specified by PidLidTimeZoneStruct to the UTC time zone
            // From RFC 5545 :
            // The UNTIL rule part defines a DATE or DATE-TIME value that bounds
            // the recurrence rule in an inclusive manner.  If the value
            // specified by UNTIL is synchronized with the specified recurrence,
            // this DATE or DATE-TIME becomes the last instance of the
            // recurrence.  The value of the UNTIL rule part MUST have the same
            // value type as the "DTSTART" property.  Furthermore, if the
            // "DTSTART" property is specified as a date with local time, then
            // the UNTIL rule part MUST also be specified as a date with local
            // time [Gren - i.e. when DTSTART is a floating time].
            // If the "DTSTART" property is specified as a date with UTC
            // time or a date with local time and time zone reference, then the
            // UNTIL rule part MUST be specified as a date with UTC time.
            long minsSince1601 = this.endMinsSince1601 + this.startTimeOffset;
            DateTime untilDateTime = IcalUtil.localMinsSince1601toDate(minsSince1601, tzDef);
            recurrenceRule.append(";UNTIL=");
            java.util.TimeZone untilTZ = null;
            if (this.tzDef != null) {
                untilTZ = this.tzDef.getTimeZone();
            }
            if (isFloating) {
                // Use localtime.
                recurrenceRule.append(IcalUtil.iCalDateTimeValue(untilDateTime, untilTZ, isAllDay));
            } else {
                if (isAllDay) {
                    recurrenceRule.append(IcalUtil.iCalDateTimeValue(untilDateTime, untilTZ, isAllDay));
                } else {
                    // MUST be UTC time
                    recurrenceRule.append(IcalUtil.icalUtcTime(minsSince1601, tzDef));
                }
            }
        }
        if (hasBYDAY) {
            WeekDayList weekDayList = new WeekDayList();
            dayOfWeekMask = getDayOfWeekMask();
            for (DayOfWeek dow : dayOfWeekMask) {
                weekDayList.add(dow.iCal4JWeekDay());
            }
            if (!weekDayList.isEmpty()) {
                recurrenceRule.append(";BYDAY=");
                recurrenceRule.append(weekDayList);
            }
        }
        if (interval != 1) {
            recurrenceRule.append(";INTERVAL=");
            recurrenceRule.append(interval);
        }
        if (weekStartDay != null) {
            recurrenceRule.append(";WKST=");
            recurrenceRule.append(weekStartDay);
        }
        Recur recur;
        try {
            recur = new Recur(recurrenceRule.toString());
        } catch (ParseException ex) {
            throw TNEFtoIcalendarServiceException.RRULE_PARSING_PROBLEM(ex);
        }
        theRule = new RRule(recur);
    }
    return theRule;
}