Examples with PeriodList net.fortuna.ical4j.model.PeriodList used on opensource projects

Example 1 with PeriodList

use of net.fortuna.ical4j.model.PeriodList in project bw-calendar-engine by Bedework.

the class BwFreeBusyComponent method getValue.

/**
 * @return String representation of list
 */
public String getValue() throws CalFacadeException {
    if (value == null) {
        if ((periods == null) || periods.isEmpty()) {
            return null;
        }
        PeriodList pl = new PeriodList();
        for (Period p : getPeriods()) {
            pl.add(p);
        }
        value = pl.toString();
    }
    return value;
}

Example 2 with PeriodList

use of net.fortuna.ical4j.model.PeriodList in project bw-calendar-engine by Bedework.

the class RecurUtil method getLatestRecurrenceDate.

/**
 * Return the absolute latest end date for this event. Note that
 * exclusions may mean the actual latest date is earlier.
 *
 * @param evprops
 * @param vstart
 * @param enddt
 * @param d
 * @param maxRangeEnd
 * @return date
 * @throws CalFacadeException
 */
private static Date getLatestRecurrenceDate(final PropertyList evprops, final DtStart vstart, final DtEnd enddt, final Duration d, final Date maxRangeEnd) throws CalFacadeException {
    boolean debug = getLog().isDebugEnabled();
    try {
        Date start = vstart.getDate();
        Date until = null;
        /* Get the duration of the event to get us past the end
       */
        Dur dur;
        if (d != null) {
            dur = d.getDuration();
        } else {
            Date evend;
            if (enddt == null) {
                evend = start;
            } else {
                evend = enddt.getDate();
            }
            dur = new Dur(start, evend);
        }
        /* Make a new duration incremented a little to avoid any boundary
          conditions */
        if (dur.getWeeks() != 0) {
            dur = new Dur(dur.getWeeks() + 1);
        } else {
            dur = new Dur(dur.getDays() + 1, dur.getHours(), dur.getMinutes(), dur.getSeconds());
        }
        PropertyList rrules = evprops.getProperties(Property.RRULE);
        PropertyList rdts = evprops.getProperties(Property.RDATE);
        if ((rrules == null) && (rdts == null)) {
            // Not a recurring event
            return null;
        }
        if (rrules != null) {
            Iterator rit = rrules.iterator();
            while (rit.hasNext()) {
                RRule r = (RRule) rit.next();
                Date nextUntil = getLastDate(r.getRecur(), start, maxRangeEnd);
                if (nextUntil == null) {
                    /* We have a rule without an end date so it's infinite.
             */
                    return null;
                }
                if (debug) {
                    debugMsg("Last date for recur=" + nextUntil);
                }
                if ((until == null) || (nextUntil.after(until))) {
                    until = nextUntil;
                }
            }
            /* We have some rules - none have an end date so it's infinite.
         */
            if (until == null) {
                // infinite
                return null;
            }
        }
        if (rdts != null) {
            // Get the latest date from each
            // XXX are these sorted?
            Iterator rit = rdts.iterator();
            while (rit.hasNext()) {
                RDate r = (RDate) rit.next();
                if (Value.PERIOD.equals(r.getParameter(Parameter.VALUE))) {
                    PeriodList pl = r.getPeriods();
                    Iterator it = pl.iterator();
                    while (it.hasNext()) {
                        Period p = (Period) it.next();
                        // Not sure if a single date gives a null end
                        Date nextUntil = p.getEnd();
                        if (nextUntil == null) {
                            nextUntil = p.getStart();
                        }
                        if ((until == null) || (nextUntil.after(until))) {
                            until = nextUntil;
                        }
                    }
                } else {
                    // date or datetime
                    DateList startDates = r.getDates();
                    for (int j = 0; j < startDates.size(); j++) {
                        Date startDate = (Date) startDates.get(j);
                        Date endDate = new Date(dur.getTime(startDate));
                        if ((until == null) || (endDate.after(until))) {
                            until = endDate;
                        }
                    }
                }
            }
        }
        if (debug) {
            debugMsg("Last date before fix=" + until);
        }
        /* Now add the duration of the event to get us past the end
       */
        if (until instanceof DateTime) {
            until = new DateTime(dur.getTime(until));
            ((DateTime) until).setUtc(true);
        } else {
            until = new Date(dur.getTime(until));
        }
        if (debug) {
            debugMsg("Last date after fix=" + until);
        }
        return until;
    } catch (Throwable t) {
        throw new CalFacadeException(t);
    }
}

Example 3 with PeriodList

use of net.fortuna.ical4j.model.PeriodList in project bw-calendar-engine by Bedework.

the class VEventUtil method toIcalComponent.

/**
 * Make an Icalendar component from a BwEvent object. This may produce a
 * VEvent, VTodo, VJournal or VPoll.
 *
 * @param ei the event
 * @param isOverride - true if event object is an override
 * @param tzreg - timezone registry
 * @param currentPrincipal - href for current authenticated user
 * @return Component
 * @throws CalFacadeException
 */
public static Component toIcalComponent(final EventInfo ei, final boolean isOverride, final TimeZoneRegistry tzreg, final String currentPrincipal) throws CalFacadeException {
    if ((ei == null) || (ei.getEvent() == null)) {
        return null;
    }
    final BwEvent val = ei.getEvent();
    boolean isInstance = false;
    try {
        Component xcomp = null;
        Calendar cal = null;
        final List<BwXproperty> xcompProps = val.getXproperties(BwXproperty.bedeworkIcal);
        if (!Util.isEmpty(xcompProps)) {
            final BwXproperty xcompProp = xcompProps.get(0);
            final String xcompPropVal = xcompProp.getValue();
            if (xcompPropVal != null) {
                final StringBuilder sb = new StringBuilder();
                final Icalendar ic = new Icalendar();
                try {
                    sb.append("BEGIN:VCALENDAR\n");
                    sb.append(Version.VERSION_2_0.toString());
                    sb.append("\n");
                    sb.append(xcompPropVal);
                    if (!xcompPropVal.endsWith("\n")) {
                        sb.append("\n");
                    }
                    sb.append("END:VCALENDAR\n");
                    CalendarBuilder bldr = new CalendarBuilder(new CalendarParserImpl(), ic);
                    UnfoldingReader ufrdr = new UnfoldingReader(new StringReader(sb.toString()), true);
                    cal = bldr.build(ufrdr);
                } catch (Throwable t) {
                    error(t);
                    error("Trying to parse:\n" + xcompPropVal);
                }
            }
        }
        Component comp;
        PropertyList pl = new PropertyList();
        boolean freeBusy = false;
        boolean vavail = false;
        boolean todo = false;
        boolean vpoll = false;
        int entityType = val.getEntityType();
        if (entityType == IcalDefs.entityTypeEvent) {
            comp = new VEvent(pl);
        } else if (entityType == IcalDefs.entityTypeTodo) {
            comp = new VToDo(pl);
            todo = true;
        } else if (entityType == IcalDefs.entityTypeJournal) {
            comp = new VJournal(pl);
        } else if (entityType == IcalDefs.entityTypeFreeAndBusy) {
            comp = new VFreeBusy(pl);
            freeBusy = true;
        } else if (entityType == IcalDefs.entityTypeVavailability) {
            comp = new VAvailability(pl);
            vavail = true;
        } else if (entityType == IcalDefs.entityTypeAvailable) {
            comp = new Available(pl);
        } else if (entityType == IcalDefs.entityTypeVpoll) {
            comp = new VPoll(pl);
            vpoll = true;
        } else {
            throw new CalFacadeException("org.bedework.invalid.entity.type", String.valueOf(entityType));
        }
        if (cal != null) {
            xcomp = cal.getComponent(comp.getName());
        }
        Property prop;
        /* ------------------- RecurrenceID --------------------
       * Done early so we know if this is an instance.
       */
        String strval = val.getRecurrenceId();
        if ((strval != null) && (strval.length() > 0)) {
            isInstance = true;
            pl.add(new RecurrenceId(makeZonedDt(val, strval)));
        }
        /* ------------------- Alarms -------------------- */
        VAlarmUtil.processEventAlarm(val, comp, currentPrincipal);
        /* ------------------- Attachments -------------------- */
        if (val.getNumAttachments() > 0) {
            for (BwAttachment att : val.getAttachments()) {
                pl.add(setAttachment(att));
            }
        }
        /* ------------------- Attendees -------------------- */
        if (!vpoll && (val.getNumAttendees() > 0)) {
            for (BwAttendee att : val.getAttendees()) {
                prop = setAttendee(att);
                mergeXparams(prop, xcomp);
                pl.add(prop);
            }
        }
        if (val.getNumCategories() > 0) {
            // LANG - filter on language - group language in one cat list?
            for (BwCategory cat : val.getCategories()) {
                prop = new Categories();
                TextList cl = ((Categories) prop).getCategories();
                cl.add(cat.getWord().getValue());
                pl.add(langProp(prop, cat.getWord()));
            }
        }
        /* ------------------- Class -------------------- */
        final String pval = val.getClassification();
        if (pval != null) {
            pl.add(new Clazz(pval));
        }
        if (val.getNumComments() > 0) {
            for (final BwString str : val.getComments()) {
                pl.add(langProp(new Comment(str.getValue()), str));
            }
        }
        if ((todo || vpoll) && (val.getCompleted() != null)) {
            prop = new Completed(new DateTime(val.getCompleted()));
            pl.add(prop);
        }
        if (val.getNumContacts() > 0) {
            for (final BwContact c : val.getContacts()) {
                // LANG
                prop = new Contact(c.getCn().getValue());
                final String l = c.getLink();
                if (l != null) {
                    prop.getParameters().add(new AltRep(l));
                }
                pl.add(langProp(uidProp(prop, c.getUid()), c.getCn()));
            }
        }
        if (val.getCost() != null) {
            IcalUtil.addXproperty(pl, BwXproperty.bedeworkCost, null, val.getCost());
        }
        /* ------------------- Created -------------------- */
        prop = new Created(val.getCreated());
        // if (pars.includeDateTimeProperty) {
        // prop.getParameters().add(Value.DATE_TIME);
        // }
        pl.add(prop);
        if (val.getDeleted()) {
            IcalUtil.addXproperty(pl, BwXproperty.bedeworkDeleted, null, String.valueOf(val.getDeleted()));
        }
        /* ------------------- Description -------------------- */
        BwStringBase bwstr = val.findDescription(null);
        if (bwstr != null) {
            pl.add(langProp(new Description(bwstr.getValue()), bwstr));
        }
        if (val.getEndType() == StartEndComponent.endTypeDate) {
            if (todo) {
                Due due = val.getDtend().makeDue(tzreg);
                if (freeBusy | val.getForceUTC()) {
                    due.setUtc(true);
                }
                pl.add(due);
            } else {
                DtEnd dtend = val.getDtend().makeDtEnd(tzreg);
                if (freeBusy | val.getForceUTC()) {
                    dtend.setUtc(true);
                }
                pl.add(dtend);
            }
        } else if (val.getEndType() == StartEndComponent.endTypeDuration) {
            addProperty(comp, new Duration(new Dur(val.getDuration())));
        }
        /* ------------------- DtStamp -------------------- */
        prop = new DtStamp(new DateTime(val.getDtstamp()));
        // if (pars.includeDateTimeProperty) {
        // prop.getParameters().add(Value.DATE_TIME);
        // }
        pl.add(prop);
        if (!val.getNoStart()) {
            DtStart dtstart = val.getDtstart().makeDtStart(tzreg);
            if (freeBusy | val.getForceUTC()) {
                dtstart.setUtc(true);
            }
            pl.add(dtstart);
        }
        if (freeBusy) {
            Collection<BwFreeBusyComponent> fbps = val.getFreeBusyPeriods();
            if (fbps != null) {
                for (BwFreeBusyComponent fbc : fbps) {
                    FreeBusy fb = new FreeBusy();
                    int type = fbc.getType();
                    if (type == BwFreeBusyComponent.typeBusy) {
                        addParameter(fb, FbType.BUSY);
                    } else if (type == BwFreeBusyComponent.typeFree) {
                        addParameter(fb, FbType.FREE);
                    } else if (type == BwFreeBusyComponent.typeBusyUnavailable) {
                        addParameter(fb, FbType.BUSY_UNAVAILABLE);
                    } else if (type == BwFreeBusyComponent.typeBusyTentative) {
                        addParameter(fb, FbType.BUSY_TENTATIVE);
                    } else {
                        throw new CalFacadeException("Bad free-busy type " + type);
                    }
                    PeriodList pdl = fb.getPeriods();
                    for (Period p : fbc.getPeriods()) {
                        // XXX inverse.ca plugin cannot handle durations.
                        Period np = new Period(p.getStart(), p.getEnd());
                        pdl.add(np);
                    }
                    pl.add(fb);
                }
            }
        }
        if (!vpoll) {
            BwGeo bwgeo = val.getGeo();
            if (bwgeo != null) {
                Geo geo = new Geo(bwgeo.getLatitude(), bwgeo.getLongitude());
                pl.add(geo);
            }
        }
        /* ------------------- LastModified -------------------- */
        prop = new LastModified(new DateTime(val.getLastmod()));
        // if (pars.includeDateTimeProperty) {
        // prop.getParameters().add(Value.DATE_TIME);
        // }
        pl.add(prop);
        if (!vpoll) {
            final BwLocation loc = val.getLocation();
            if (loc != null) {
                prop = new Location(loc.getCombinedValues());
                pl.add(langProp(uidProp(prop, loc.getUid()), loc.getAddress()));
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationAddr, null, loc.getAddressField());
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationRoom, null, loc.getRoomField());
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationAccessible, null, String.valueOf(loc.getAccessible()));
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationSfield1, null, loc.getSubField1());
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationSfield2, null, loc.getSubField2());
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationGeo, null, loc.getGeouri());
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationStreet, null, loc.getStreet());
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationCity, null, loc.getCity());
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationState, null, loc.getState());
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationZip, null, loc.getZip());
                IcalUtil.addXproperty(pl, BwXproperty.xBedeworkLocationLink, null, loc.getLink());
            }
        }
        /* ------------------- Organizer -------------------- */
        BwOrganizer org = val.getOrganizer();
        if (org != null) {
            prop = setOrganizer(org);
            mergeXparams(prop, xcomp);
            pl.add(prop);
        }
        if (todo) {
            Integer pc = val.getPercentComplete();
            if (pc != null) {
                pl.add(new PercentComplete(pc.intValue()));
            }
        }
        /* ------------------- Priority -------------------- */
        Integer prio = val.getPriority();
        if (prio != null) {
            pl.add(new Priority(prio.intValue()));
        }
        /* ------------------- RDate -below------------------- */
        /* ------------------- RelatedTo -------------------- */
        /* We encode related to (maybe) as triples - reltype, value-type, value */
        String[] info = null;
        BwRelatedTo relto = val.getRelatedTo();
        if (relto != null) {
            info = new String[3];
            info[0] = relto.getRelType();
            // default
            info[1] = "";
            info[2] = relto.getValue();
        } else {
            String relx = val.getXproperty(BwXproperty.bedeworkRelatedTo);
            if (relx != null) {
                info = Util.decodeArray(relx);
            }
        }
        if (info != null) {
            int i = 0;
            while (i < info.length) {
                RelatedTo irelto;
                String reltype = info[i];
                String valtype = info[i + 1];
                String relval = info[i + 2];
                ParameterList rtpl = null;
                if (reltype.length() > 0) {
                    rtpl = new ParameterList();
                    rtpl.add(new RelType(reltype));
                }
                if (valtype.length() > 0) {
                    if (rtpl == null) {
                        rtpl = new ParameterList();
                    }
                    rtpl.add(new Value(valtype));
                }
                if (rtpl != null) {
                    irelto = new RelatedTo(rtpl, relval);
                } else {
                    irelto = new RelatedTo(relval);
                }
                pl.add(irelto);
                i += 3;
            }
        }
        if (val.getNumResources() > 0) {
            /* This event has a resource */
            prop = new Resources();
            TextList rl = ((Resources) prop).getResources();
            for (BwString str : val.getResources()) {
                // LANG
                rl.add(str.getValue());
            }
            pl.add(prop);
        }
        if (val.getSequence() > 0) {
            pl.add(new Sequence(val.getSequence()));
        }
        /* ------------------- Status -------------------- */
        String status = val.getStatus();
        if ((status != null) && !status.equals(BwEvent.statusMasterSuppressed)) {
            pl.add(new Status(status));
        }
        /* ------------------- Summary -------------------- */
        bwstr = val.findSummary(null);
        if (bwstr != null) {
            pl.add(langProp(new Summary(bwstr.getValue()), bwstr));
        }
        if (!todo && !vpoll) {
            strval = val.getPeruserTransparency(currentPrincipal);
            if ((strval != null) && (strval.length() > 0)) {
                pl.add(new Transp(strval));
            }
        }
        /* ------------------- Uid -------------------- */
        pl.add(new Uid(val.getUid()));
        /* ------------------- Url -------------------- */
        strval = val.getLink();
        if (strval != null) {
            // Possibly drop this if we do it on input and check all data
            strval = strval.trim();
        }
        if ((strval != null) && (strval.length() > 0)) {
            URI uri = Util.validURI(strval);
            if (uri != null) {
                pl.add(new Url(uri));
            }
        }
        if (val.getNumXproperties() > 0) {
            try {
                IcalUtil.xpropertiesToIcal(pl, val.getXproperties());
            } catch (Throwable t) {
                // XXX For the moment swallow these.
                error(t);
            }
        }
        if (!vpoll && !isInstance && !isOverride && val.testRecurring()) {
            doRecurring(val, pl);
        }
        if (vavail) {
            if (ei.getNumContainedItems() > 0) {
                final VAvailability va = (VAvailability) comp;
                for (final EventInfo aei : ei.getContainedItems()) {
                    va.getAvailable().add((Available) toIcalComponent(aei, false, tzreg, currentPrincipal));
                }
            }
            /* ----------- Vavailability - busyType ----------------- */
            String s = val.getBusyTypeString();
            if (s != null) {
                pl.add(new BusyType(s));
            }
        }
        if (vpoll) {
            final Integer ival = val.getPollWinner();
            if (ival != null) {
                pl.add(new PollWinner(ival));
            }
            strval = val.getPollAcceptResponse();
            if ((strval != null) && (strval.length() > 0)) {
                pl.add(new AcceptResponse(strval));
            }
            strval = val.getPollMode();
            if ((strval != null) && (strval.length() > 0)) {
                pl.add(new PollMode(strval));
            }
            strval = val.getPollProperties();
            if ((strval != null) && (strval.length() > 0)) {
                pl.add(new PollProperties(strval));
            }
            final Map<String, VVoter> vvoters = parseVpollVvoters(val);
            for (final VVoter vv : vvoters.values()) {
                ((VPoll) comp).getVoters().add(vv);
            }
            final Map<Integer, Component> comps = parseVpollCandidates(val);
            for (final Component candidate : comps.values()) {
                ((VPoll) comp).getCandidates().add(candidate);
            }
        }
        return comp;
    } catch (final CalFacadeException cfe) {
        throw cfe;
    } catch (final Throwable t) {
        throw new CalFacadeException(t);
    }
}

Example 4 with PeriodList

use of net.fortuna.ical4j.model.PeriodList in project bw-calendar-engine by Bedework.

the class BwFreeBusyUtil method toFreeBusy.

/**
 * @param cb
 * @param val
 * @return BwFreeBusy
 * @throws CalFacadeException
 */
public static EventInfo toFreeBusy(final IcalCallback cb, final VFreeBusy val) throws CalFacadeException {
    if (val == null) {
        return null;
    }
    boolean debug = getLog().isDebugEnabled();
    try {
        PropertyList pl = val.getProperties();
        if (pl == null) {
            // Empty VEvent
            return null;
        }
        BwEvent fb = new BwEventObj();
        EventInfo ei = new EventInfo(fb);
        ChangeTable chg = ei.getChangeset(cb.getPrincipal().getPrincipalRef());
        fb.setEntityType(IcalDefs.entityTypeFreeAndBusy);
        setDates(cb.getPrincipal().getPrincipalRef(), ei, (DtStart) pl.getProperty(Property.DTSTART), (DtEnd) pl.getProperty(Property.DTEND), (Duration) pl.getProperty(Property.DURATION));
        Iterator it = pl.iterator();
        while (it.hasNext()) {
            Property prop = (Property) it.next();
            String pval = prop.getValue();
            if ((pval != null) && (pval.length() == 0)) {
                pval = null;
            }
            PropertyInfoIndex pi = PropertyInfoIndex.fromName(prop.getName());
            if (pi == null) {
                debugMsg("Unknown property with name " + prop.getName() + " class " + prop.getClass() + " and value " + pval);
                continue;
            }
            switch(pi) {
                case ATTENDEE:
                    /* ------------------- Attendee -------------------- */
                    BwAttendee att = getAttendee(cb, (Attendee) prop);
                    fb.addAttendee(att);
                    chg.addValue(pi, att);
                    break;
                case COMMENT:
                    /* ------------------- Comment -------------------- */
                    // LANG
                    fb.addComment(null, pval);
                    chg.addValue(pi, pval);
                case DTEND:
                    break;
                case DTSTAMP:
                    /* ------------------- DtStamp -------------------- */
                    chg.changed(pi, fb.getDtstamp(), pval);
                    fb.setDtstamp(pval);
                case DTSTART:
                    break;
                case FREEBUSY:
                    /* ------------------- freebusy -------------------- */
                    FreeBusy fbusy = (FreeBusy) prop;
                    PeriodList perpl = fbusy.getPeriods();
                    Parameter par = getParameter(fbusy, "FBTYPE");
                    int fbtype;
                    if (par == null) {
                        fbtype = BwFreeBusyComponent.typeBusy;
                    } else if (par.equals(FbType.BUSY)) {
                        fbtype = BwFreeBusyComponent.typeBusy;
                    } else if (par.equals(FbType.BUSY_TENTATIVE)) {
                        fbtype = BwFreeBusyComponent.typeBusyTentative;
                    } else if (par.equals(FbType.BUSY_UNAVAILABLE)) {
                        fbtype = BwFreeBusyComponent.typeBusyUnavailable;
                    } else if (par.equals(FbType.FREE)) {
                        fbtype = BwFreeBusyComponent.typeFree;
                    } else {
                        if (debug) {
                            debugMsg("Unsupported parameter " + par.getName());
                        }
                        throw new IcalMalformedException("parameter " + par.getName());
                    }
                    BwFreeBusyComponent fbc = new BwFreeBusyComponent();
                    fbc.setType(fbtype);
                    Iterator perit = perpl.iterator();
                    while (perit.hasNext()) {
                        Period per = (Period) perit.next();
                        fbc.addPeriod(per);
                    }
                    fb.addFreeBusyPeriod(fbc);
                    chg.addValue(pi, fbc);
                    break;
                case ORGANIZER:
                    /* ------------------- Organizer -------------------- */
                    BwOrganizer org = getOrganizer(cb, (Organizer) prop);
                    fb.setOrganizer(org);
                    chg.addValue(pi, org);
                    break;
                case UID:
                    /* ------------------- Uid -------------------- */
                    chg.changed(pi, fb.getUid(), pval);
                    fb.setUid(pval);
                    break;
                default:
                    if (debug) {
                        debugMsg("Unsupported property with class " + prop.getClass() + " and value " + pval);
                    }
            }
        }
        return ei;
    } catch (CalFacadeException cfe) {
        throw cfe;
    } catch (Throwable t) {
        throw new CalFacadeException(t);
    }
}

Example 5 with PeriodList

use of net.fortuna.ical4j.model.PeriodList in project OpenOLAT by OpenOLAT.

the class CalendarImportTest method testImportRecurringCal.

@Test
public void testImportRecurringCal() throws IOException, ParserException {
    InputStream in = CalendarImportTest.class.getResourceAsStream("RecurringEvent.ics");
    CalendarBuilder builder = new CalendarBuilder();
    Calendar calendar = builder.build(in);
    assertNotNull(calendar);
    VEvent rootEvent = null;
    VEvent exceptionEvent = null;
    for (Iterator<?> iter = calendar.getComponents().iterator(); iter.hasNext(); ) {
        Object comp = iter.next();
        if (comp instanceof VEvent) {
            VEvent vevent = (VEvent) comp;
            if (vevent.getRecurrenceId() == null) {
                rootEvent = vevent;
            } else {
                exceptionEvent = vevent;
            }
        }
    }
    assertNotNull(rootEvent);
    assertNotNull(exceptionEvent);
    java.util.Date startDate = CalendarUtils.getDate(2016, java.util.Calendar.OCTOBER, 10);
    DateTime start = new DateTime(startDate);
    java.util.Date endDate = CalendarUtils.getDate(2016, java.util.Calendar.NOVEMBER, 10);
    DateTime end = new DateTime(endDate);
    Period period = new Period(start, end);
    PeriodList pList = rootEvent.calculateRecurrenceSet(period);
    for (Object obj : pList) {
        Period p = (Period) obj;
        System.out.println("Period: " + p.getStart());
    }
    RecurrenceId recurrenceId = exceptionEvent.getRecurrenceId();
    Date recurrenceDate = recurrenceId.getDate();
    System.out.println("Recurrence: " + recurrenceDate);
    exceptionEvent.getSequence();
}