Examples with CalendarItemData com.zimbra.cs.mailbox.calendar.cache.CalendarItemData used on opensource projects

Example 1 with CalendarItemData

use of com.zimbra.cs.mailbox.calendar.cache.CalendarItemData in project zm-mailbox by Zimbra.

the class LocalFreeBusyProvider method getFreeBusyList.

/**
 * @param mbox
 * @param start
 * @param end
 * @param folder folder to run free/busy search on; FreeBusyQuery.CALENDAR_FOLDER_ALL (-1) for all folders
 * @param exAppt appointment to exclude; calculate free/busy assuming
 *               the specified appointment wasn't there
 * @return
 * @throws ServiceException
 */
public static FreeBusy getFreeBusyList(Account authAcct, boolean asAdmin, Mailbox mbox, String name, long start, long end, int folder, Appointment exAppt) throws ServiceException {
    AccessManager accessMgr = AccessManager.getInstance();
    boolean accountAceAllowed = accessMgr.canDo(authAcct, mbox.getAccount(), User.R_viewFreeBusy, asAdmin);
    int numAllowedFolders = 0;
    int exApptId = exAppt == null ? -1 : exAppt.getId();
    IntervalList intervals = new IntervalList(start, end);
    List<CalendarDataResult> calDataResultList;
    if (folder == FreeBusyQuery.CALENDAR_FOLDER_ALL) {
        calDataResultList = mbox.getAllCalendarsSummaryForRange(null, MailItem.Type.APPOINTMENT, start, end);
    } else {
        calDataResultList = new ArrayList<CalendarDataResult>(1);
        calDataResultList.add(mbox.getCalendarSummaryForRange(null, folder, MailItem.Type.APPOINTMENT, start, end));
    }
    for (CalendarDataResult result : calDataResultList) {
        int folderId = result.data.getFolderId();
        Folder f = mbox.getFolderById(null, folderId);
        if ((f.getFlagBitmask() & Flag.BITMASK_EXCLUDE_FREEBUSY) != 0) {
            ZimbraLog.fb.debug("Calendar '%s' id=%s ignored - has EXCLUDE_FREEBUSY flag set", f.getName(), folderId);
            continue;
        }
        // Free/busy must be allowed by folder or at account-level.
        boolean folderFBAllowed = CalendarItem.allowFreeBusyAccess(f, authAcct, asAdmin);
        if (folderFBAllowed)
            ++numAllowedFolders;
        if (!folderFBAllowed && !accountAceAllowed) {
            ZimbraLog.fb.debug("Calendar '%s' id=%s ignored - folderFBAllowed=%s accountAceAllowed=%s", f.getName(), folderId, folderFBAllowed, accountAceAllowed);
            continue;
        }
        for (Iterator<CalendarItemData> iter = result.data.calendarItemIterator(); iter.hasNext(); ) {
            CalendarItemData appt = iter.next();
            int apptId = appt.getCalItemId();
            if (apptId == exApptId)
                continue;
            FullInstanceData defaultInstance = appt.getDefaultData();
            if (defaultInstance == null)
                continue;
            boolean isTransparent = false;
            String transp = defaultInstance.getTransparency();
            isTransparent = IcalXmlStrMap.TRANSP_TRANSPARENT.equals(transp);
            long defaultDuration = 0;
            if (defaultInstance.getDuration() != null)
                defaultDuration = defaultInstance.getDuration().longValue();
            String defaultFreeBusy = defaultInstance.getFreeBusyActual();
            for (Iterator<InstanceData> instIter = appt.instanceIterator(); instIter.hasNext(); ) {
                InstanceData instance = instIter.next();
                long instStart = instance.getDtStart() != null ? instance.getDtStart().longValue() : 0;
                // Skip instances that are outside the time range but were returned due to alarm being in range.
                if (instStart >= end)
                    continue;
                long dur = defaultDuration;
                if (instance.getDuration() != null)
                    dur = instance.getDuration().longValue();
                if (// Only consider instances with non-zero, positive duration.
                dur <= 0)
                    continue;
                long instEnd = instStart + dur;
                long recurIdDt = 0;
                // Skip if instance is TRANSPARENT to free/busy searches.
                if (instance instanceof FullInstanceData) {
                    FullInstanceData fullInst = (FullInstanceData) instance;
                    String transpInst = fullInst.getTransparency();
                    recurIdDt = fullInst.getRecurrenceId();
                    if (IcalXmlStrMap.TRANSP_TRANSPARENT.equals(transpInst))
                        continue;
                } else if (isTransparent) {
                    continue;
                }
                String freeBusy = instance.getFreeBusyActual();
                if (freeBusy == null)
                    freeBusy = defaultFreeBusy;
                if (!IcalXmlStrMap.FBTYPE_FREE.equals(freeBusy)) {
                    FBInstance fbInst = new FBInstance(freeBusy, instStart, instEnd, apptId, recurIdDt);
                    Interval ival = new Interval(instStart, instEnd, freeBusy, fbInst);
                    intervals.addInterval(ival);
                }
            }
        }
    }
    if (!accountAceAllowed && numAllowedFolders == 0 && !LC.freebusy_disable_nodata_status.booleanValue()) {
        Interval nodata = new Interval(start, end, IcalXmlStrMap.FBTYPE_NODATA);
        intervals.addInterval(nodata);
    }
    return new FreeBusy(name, intervals, start, end);
}

Example 2 with CalendarItemData

use of com.zimbra.cs.mailbox.calendar.cache.CalendarItemData in project zm-mailbox by Zimbra.

the class Search method addCalendarDataToResponse.

private static void addCalendarDataToResponse(Element parent, ZimbraSoapContext zsc, ItemIdFormatter ifmt, CalendarData calData, boolean allowPrivateAccess) throws ServiceException {
    for (Iterator<CalendarItemData> itemIter = calData.calendarItemIterator(); itemIter.hasNext(); ) {
        CalendarItemData calItemData = itemIter.next();
        int numInstances = calItemData.getNumInstances();
        if (numInstances > 0) {
            Element calItemElem = CacheToXML.encodeCalendarItemData(zsc, ifmt, calItemData, allowPrivateAccess, false);
            parent.addNonUniqueElement(calItemElem);
        }
    }
}

Example 3 with CalendarItemData

use of com.zimbra.cs.mailbox.calendar.cache.CalendarItemData in project zm-mailbox by Zimbra.

the class GetMiniCal method addBusyDates.

private static void addBusyDates(Calendar cal, CalendarData calData, long rangeStart, long rangeEnd, Set<String> busyDates) throws ServiceException {
    for (Iterator<CalendarItemData> itemIter = calData.calendarItemIterator(); itemIter.hasNext(); ) {
        CalendarItemData item = itemIter.next();
        for (Iterator<InstanceData> instIter = item.instanceIterator(); instIter.hasNext(); ) {
            InstanceData inst = instIter.next();
            // ignore declined meetings.
            String partStat = inst.getPartStat();
            if (partStat == null)
                partStat = item.getDefaultData().getPartStat();
            if (IcalXmlStrMap.PARTSTAT_DECLINED.equals(partStat))
                continue;
            Long start = inst.getDtStart();
            if (start != null) {
                String datestampStart = getDatestamp(cal, start);
                busyDates.add(datestampStart);
                Long duration = inst.getDuration();
                if (duration != null) {
                    long end = start + duration;
                    String datestampEnd = getDatestamp(cal, end);
                    busyDates.add(datestampEnd);
                }
            }
        }
    }
}

Example 4 with CalendarItemData

use of com.zimbra.cs.mailbox.calendar.cache.CalendarItemData in project zm-mailbox by Zimbra.

the class GetCalendarItemSummaries method encodeCalendarItemInstances.

/**
 * Encodes a calendar item
 *
 * @param parent
 * @param elementName
 *         name of element to add (MailConstants .E_APPOINTMENT or MailConstants.E_TASK)
 * @param rangeStart
 *         start period to expand instances (or -1 for no start time constraint)
 * @param rangeEnd
 *         end period to expand instances (or -1 for no end time constraint)
 * @param newFormat
 *         temporary HACK - true: SearchRequest, false: GetAppointmentSummaries
 * @return
 */
static EncodeCalendarItemResult encodeCalendarItemInstances(ZimbraSoapContext lc, OperationContext octxt, CalendarItem calItem, Account acct, long rangeStart, long rangeEnd, boolean newFormat) throws ServiceException {
    EncodeCalendarItemResult toRet = new EncodeCalendarItemResult();
    ItemIdFormatter ifmt = new ItemIdFormatter(lc);
    Account authAccount = getAuthenticatedAccount(lc);
    boolean hidePrivate = !calItem.allowPrivateAccess(authAccount, lc.isUsingAdminPrivileges());
    try {
        boolean expandRanges;
        if (calItem instanceof Task) {
            expandRanges = true;
            if (rangeStart == -1 && rangeEnd == -1) {
                rangeStart = Long.MIN_VALUE;
                rangeEnd = Long.MAX_VALUE;
            }
        } else {
            expandRanges = (rangeStart != -1 && rangeEnd != -1 && rangeStart < rangeEnd);
        }
        boolean isAppointment = calItem instanceof Appointment;
        // Use the marshalling code in calendar summary cache for uniform output, when we can.
        if (isAppointment && expandRanges) {
            CalendarItemData calItemData = CalSummaryCache.reloadCalendarItemOverRange(calItem, rangeStart, rangeEnd);
            if (calItemData != null) {
                int numInstances = calItemData.getNumInstances();
                if (numInstances > 0) {
                    Element calItemElem = CacheToXML.encodeCalendarItemData(lc, ifmt, calItemData, !hidePrivate, !newFormat);
                    toRet.element = calItemElem;
                    toRet.numInstancesExpanded = numInstances;
                }
            }
            return toRet;
        }
        // But there are other cases (e.g. tasks, no time range) that require the legacy code below.
        // don't initialize until we find at least one valid instance
        Element calItemElem = null;
        Invite defaultInvite = calItem.getDefaultInviteOrNull();
        if (defaultInvite == null) {
            mLog.info("Could not load defaultinfo for calendar item with id=" + calItem.getId() + " SKIPPING");
            return toRet;
        }
        ParsedDuration defDuration = defaultInvite.getEffectiveDuration();
        // events and 1 second for non all-day.  (bug 28615)
        if (defDuration == null && !defaultInvite.isTodo()) {
            if (defaultInvite.isAllDayEvent()) {
                defDuration = ParsedDuration.ONE_DAY;
            } else {
                defDuration = ParsedDuration.ONE_SECOND;
            }
        }
        long defDurationMsecs = 0;
        if (defaultInvite.getStartTime() != null && defDuration != null) {
            ParsedDateTime s = defaultInvite.getStartTime();
            long et = s.add(defDuration).getUtcTime();
            defDurationMsecs = et - s.getUtcTime();
        }
        String defaultFba = null;
        if (calItem instanceof Appointment) {
            defaultFba = ((Appointment) calItem).getEffectiveFreeBusyActual(defaultInvite, null);
        }
        String defaultPtSt = calItem.getEffectivePartStat(defaultInvite, null);
        AlarmData alarmData = calItem.getAlarmData();
        // add all the instances:
        int numInRange = 0;
        if (expandRanges) {
            Collection<CalendarItem.Instance> instances = calItem.expandInstances(rangeStart, rangeEnd, true);
            long alarmTime = 0;
            long alarmInst = 0;
            if (alarmData != null) {
                alarmTime = alarmData.getNextAt();
                alarmInst = alarmData.getNextInstanceStart();
            }
            for (CalendarItem.Instance inst : instances) {
                try {
                    InviteInfo invId = inst.getInviteInfo();
                    Invite inv = calItem.getInvite(invId.getMsgId(), invId.getComponentId());
                    boolean showAll = !hidePrivate || inv.isPublic();
                    // figure out which fields are different from the default and put their data here...
                    ParsedDuration invDuration = inv.getEffectiveDuration();
                    long instStart = inst.getStart();
                    // For an instance whose alarm time is within the time range, we must
                    // include it even if its start time is after the range.
                    long startOrAlarm = instStart == alarmInst ? alarmTime : instStart;
                    // events and 1 second for non all-day.  (bug 28615)
                    if (invDuration == null) {
                        if (inv.isAllDayEvent())
                            invDuration = ParsedDuration.ONE_DAY;
                        else
                            invDuration = ParsedDuration.ONE_SECOND;
                    }
                    if (!inst.hasStart() || (startOrAlarm < rangeEnd && invDuration.addToTime(instStart) > rangeStart)) {
                        numInRange++;
                    } else {
                        continue;
                    }
                    if (calItemElem == null) {
                        calItemElem = lc.createElement(isAppointment ? MailConstants.E_APPOINTMENT : MailConstants.E_TASK);
                        if (showAll) {
                            // flags and tags
                            ToXML.recordItemTags(calItemElem, calItem, octxt);
                        }
                        // Organizer
                        if (inv.hasOrganizer()) {
                            ZOrganizer org = inv.getOrganizer();
                            org.toXml(calItemElem);
                        }
                        calItemElem.addAttribute("x_uid", calItem.getUid());
                        calItemElem.addAttribute(MailConstants.A_UID, calItem.getUid());
                    }
                    Element instElt = calItemElem.addElement(MailConstants.E_INSTANCE);
                    if (showAll) {
                        if (isAppointment && inv.isEvent()) {
                            String instFba = ((Appointment) calItem).getEffectiveFreeBusyActual(inv, inst);
                            if (instFba != null && (!instFba.equals(defaultFba) || inst.isException()))
                                instElt.addAttribute(MailConstants.A_APPT_FREEBUSY_ACTUAL, instFba);
                        }
                        String instPtSt = calItem.getEffectivePartStat(inv, inst);
                        if (!defaultPtSt.equals(instPtSt) || inst.isException())
                            instElt.addAttribute(MailConstants.A_CAL_PARTSTAT, instPtSt);
                    }
                    if (inst.hasStart()) {
                        instElt.addAttribute(MailConstants.A_CAL_START_TIME, instStart);
                        if (inv.isAllDayEvent())
                            instElt.addAttribute(MailConstants.A_CAL_TZ_OFFSET, inst.getStartTzOffset());
                    }
                    if (inst.isException() && inv.hasRecurId()) {
                        RecurId rid = inv.getRecurId();
                        instElt.addAttribute(MailConstants.A_CAL_RECURRENCE_ID_Z, rid.getDtZ());
                    } else {
                        instElt.addAttribute(MailConstants.A_CAL_RECURRENCE_ID_Z, inst.getRecurIdZ());
                    }
                    if (inst.isException()) {
                        instElt.addAttribute(MailConstants.A_CAL_IS_EXCEPTION, true);
                        instElt.addAttribute(MailConstants.A_CAL_INV_ID, ifmt.formatItemId(calItem, inst.getMailItemId()));
                        instElt.addAttribute(MailConstants.A_CAL_COMPONENT_NUM, inst.getComponentNum());
                        if (showAll) {
                            // fragment has already been sanitized...
                            String frag = inv.getFragment();
                            if (frag != null && !frag.equals(""))
                                instElt.addAttribute(MailConstants.E_FRAG, frag, Element.Disposition.CONTENT);
                            if (inv.getPriority() != null)
                                instElt.addAttribute(MailConstants.A_CAL_PRIORITY, inv.getPriority());
                            if (inv.isEvent()) {
                                if (inv.getFreeBusy() != null)
                                    instElt.addAttribute(MailConstants.A_APPT_FREEBUSY, inv.getFreeBusy());
                                if (inv.getTransparency() != null)
                                    instElt.addAttribute(MailConstants.A_APPT_TRANSPARENCY, inv.getTransparency());
                            }
                            if (inv.isTodo()) {
                                if (inv.getPercentComplete() != null)
                                    instElt.addAttribute(MailConstants.A_TASK_PERCENT_COMPLETE, inv.getPercentComplete());
                            }
                            if (inv.getName() != null)
                                instElt.addAttribute(MailConstants.A_NAME, inv.getName());
                            if (inv.getLocation() != null)
                                instElt.addAttribute(MailConstants.A_CAL_LOCATION, inv.getLocation());
                            List<String> categories = inv.getCategories();
                            if (categories != null) {
                                for (String cat : categories) {
                                    instElt.addElement(MailConstants.E_CAL_CATEGORY).setText(cat);
                                }
                            }
                            Geo geo = inv.getGeo();
                            if (geo != null)
                                geo.toXml(instElt);
                            if (inv.hasOtherAttendees())
                                instElt.addAttribute(MailConstants.A_CAL_OTHER_ATTENDEES, true);
                            if (inv.hasAlarm())
                                instElt.addAttribute(MailConstants.A_CAL_ALARM, true);
                        }
                        instElt.addAttribute(MailConstants.A_CAL_ISORG, inv.isOrganizer());
                        if (inv.isTodo()) {
                            if (inst.hasEnd()) {
                                instElt.addAttribute(MailConstants.A_TASK_DUE_DATE, inst.getEnd());
                                if (inv.isAllDayEvent())
                                    instElt.addAttribute(MailConstants.A_CAL_TZ_OFFSET_DUE, inst.getEndTzOffset());
                            }
                        } else {
                            if (inst.hasStart() && inst.hasEnd()) {
                                instElt.addAttribute(newFormat ? MailConstants.A_CAL_NEW_DURATION : MailConstants.A_CAL_DURATION, inst.getEnd() - inst.getStart());
                            }
                        }
                        if (inv.getStatus() != null)
                            instElt.addAttribute(MailConstants.A_CAL_STATUS, inv.getStatus());
                        if (inv.getClassProp() != null)
                            instElt.addAttribute(MailConstants.A_CAL_CLASS, inv.getClassProp());
                        if (inv.isAllDayEvent())
                            instElt.addAttribute(MailConstants.A_CAL_ALLDAY, true);
                        if (inv.isDraft())
                            instElt.addAttribute(MailConstants.A_CAL_DRAFT, true);
                        if (inv.isNeverSent())
                            instElt.addAttribute(MailConstants.A_CAL_NEVER_SENT, true);
                        if (inv.isRecurrence())
                            instElt.addAttribute(MailConstants.A_CAL_RECUR, true);
                    } else {
                        if (inv.isTodo()) {
                            if (inst.hasEnd()) {
                                instElt.addAttribute(MailConstants.A_TASK_DUE_DATE, inst.getEnd());
                                if (inv.isAllDayEvent())
                                    instElt.addAttribute(MailConstants.A_CAL_TZ_OFFSET_DUE, inst.getEndTzOffset());
                            }
                        } else {
                            // the default duration due to daylight savings time transitions.
                            if (inst.hasStart() && inst.hasEnd() && defDurationMsecs != inst.getEnd() - inst.getStart()) {
                                instElt.addAttribute(newFormat ? MailConstants.A_CAL_NEW_DURATION : MailConstants.A_CAL_DURATION, inst.getEnd() - inst.getStart());
                            }
                        }
                    }
                } catch (MailServiceException.NoSuchItemException e) {
                    mLog.info("Error could not get instance " + inst.getMailItemId() + "-" + inst.getComponentNum() + " for appt " + calItem.getId(), e);
                }
            }
        // iterate all the instances
        }
        if (!expandRanges || numInRange > 0) {
            // if we found any calItems at all, we have to encode the "Default" data here
            boolean showAll = !hidePrivate || defaultInvite.isPublic();
            if (calItemElem == null) {
                calItemElem = lc.createElement(isAppointment ? MailConstants.E_APPOINTMENT : MailConstants.E_TASK);
                calItemElem.addAttribute("x_uid", calItem.getUid());
                calItemElem.addAttribute(MailConstants.A_UID, calItem.getUid());
                if (showAll) {
                    // flags and tags
                    ToXML.recordItemTags(calItemElem, calItem, octxt);
                }
                // Organizer
                if (defaultInvite.hasOrganizer()) {
                    ZOrganizer org = defaultInvite.getOrganizer();
                    org.toXml(calItemElem);
                }
            }
            if (showAll) {
                if (alarmData != null)
                    ToXML.encodeAlarmData(calItemElem, calItem, alarmData);
                String defaultPriority = defaultInvite.getPriority();
                if (defaultPriority != null)
                    calItemElem.addAttribute(MailConstants.A_CAL_PRIORITY, defaultPriority);
                calItemElem.addAttribute(MailConstants.A_CAL_PARTSTAT, defaultPtSt);
                if (defaultInvite.isEvent()) {
                    calItemElem.addAttribute(MailConstants.A_APPT_FREEBUSY, defaultInvite.getFreeBusy());
                    calItemElem.addAttribute(MailConstants.A_APPT_FREEBUSY_ACTUAL, defaultFba);
                    calItemElem.addAttribute(MailConstants.A_APPT_TRANSPARENCY, defaultInvite.getTransparency());
                }
                if (defaultInvite.isTodo()) {
                    String pctComplete = defaultInvite.getPercentComplete();
                    if (pctComplete != null)
                        calItemElem.addAttribute(MailConstants.A_TASK_PERCENT_COMPLETE, pctComplete);
                }
                calItemElem.addAttribute(MailConstants.A_NAME, defaultInvite.getName());
                calItemElem.addAttribute(MailConstants.A_CAL_LOCATION, defaultInvite.getLocation());
                List<String> categories = defaultInvite.getCategories();
                if (categories != null) {
                    for (String cat : categories) {
                        calItemElem.addElement(MailConstants.E_CAL_CATEGORY).setText(cat);
                    }
                }
                Geo geo = defaultInvite.getGeo();
                if (geo != null)
                    geo.toXml(calItemElem);
                // fragment has already been sanitized...
                String fragment = defaultInvite.getFragment();
                if (!fragment.equals(""))
                    calItemElem.addAttribute(MailConstants.E_FRAG, fragment, Element.Disposition.CONTENT);
                if (defaultInvite.hasOtherAttendees()) {
                    calItemElem.addAttribute(MailConstants.A_CAL_OTHER_ATTENDEES, defaultInvite.hasOtherAttendees());
                }
                if (defaultInvite.hasAlarm()) {
                    calItemElem.addAttribute(MailConstants.A_CAL_ALARM, defaultInvite.hasAlarm());
                }
            }
            calItemElem.addAttribute(MailConstants.A_CAL_ISORG, defaultInvite.isOrganizer());
            calItemElem.addAttribute(MailConstants.A_ID, ifmt.formatItemId(calItem));
            calItemElem.addAttribute(MailConstants.A_CAL_INV_ID, ifmt.formatItemId(calItem, defaultInvite.getMailItemId()));
            calItemElem.addAttribute(MailConstants.A_CAL_COMPONENT_NUM, defaultInvite.getComponentNum());
            calItemElem.addAttribute(MailConstants.A_FOLDER, ifmt.formatItemId(new ItemId(calItem.getMailbox().getAccountId(), calItem.getFolderId())));
            calItemElem.addAttribute(MailConstants.A_CAL_STATUS, defaultInvite.getStatus());
            calItemElem.addAttribute(MailConstants.A_CAL_CLASS, defaultInvite.getClassProp());
            if (!defaultInvite.isTodo())
                calItemElem.addAttribute(newFormat ? MailConstants.A_CAL_NEW_DURATION : MailConstants.A_CAL_DURATION, defDurationMsecs);
            if (defaultInvite.isAllDayEvent())
                calItemElem.addAttribute(MailConstants.A_CAL_ALLDAY, defaultInvite.isAllDayEvent());
            if (defaultInvite.isDraft())
                calItemElem.addAttribute(MailConstants.A_CAL_DRAFT, defaultInvite.isDraft());
            if (defaultInvite.isNeverSent())
                calItemElem.addAttribute(MailConstants.A_CAL_NEVER_SENT, defaultInvite.isNeverSent());
            if (defaultInvite.isRecurrence())
                calItemElem.addAttribute(MailConstants.A_CAL_RECUR, defaultInvite.isRecurrence());
            if (calItem.hasExceptions()) {
                calItemElem.addAttribute(MailConstants.A_CAL_HAS_EXCEPTIONS, true);
            }
            toRet.element = calItemElem;
        }
        toRet.numInstancesExpanded = numInRange;
    } catch (MailServiceException.NoSuchItemException e) {
        mLog.info("Error could not get default invite for calendar item: " + calItem.getId(), e);
    } catch (RuntimeException e) {
        mLog.info("Caught Exception " + e + " while getting summary info for calendar item: " + calItem.getId(), e);
    }
    return toRet;
}

Example 5 with CalendarItemData

use of com.zimbra.cs.mailbox.calendar.cache.CalendarItemData in project zm-mailbox by Zimbra.

the class GetCalendarItemSummaries method handle.

@Override
public Element handle(Element request, Map<String, Object> context) throws ServiceException {
    ZimbraSoapContext zsc = getZimbraSoapContext(context);
    Mailbox mbox = getRequestedMailbox(zsc);
    Account acct = getRequestedAccount(zsc);
    long rangeStart = request.getAttributeLong(MailConstants.A_CAL_START_TIME);
    long rangeEnd = request.getAttributeLong(MailConstants.A_CAL_END_TIME);
    if (rangeEnd < rangeStart) {
        throw ServiceException.INVALID_REQUEST("End time must be after Start time", null);
    }
    long days = (rangeEnd - rangeStart) / MSEC_PER_DAY;
    if (days > MAX_PERIOD_SIZE_IN_DAYS) {
        throw ServiceException.INVALID_REQUEST("Requested range is too large (Maximum " + MAX_PERIOD_SIZE_IN_DAYS + " days)", null);
    }
    ItemId iidFolder = new ItemId(request.getAttribute(MailConstants.A_FOLDER, DEFAULT_FOLDER), zsc);
    Element response = getResponseElement(zsc);
    OperationContext octxt = getOperationContext(zsc, context);
    if (LC.calendar_cache_enabled.booleanValue()) {
        ItemIdFormatter ifmt = new ItemIdFormatter(zsc);
        int folderId = iidFolder.getId();
        if (folderId != Mailbox.ID_AUTO_INCREMENT) {
            CalendarDataResult result = mbox.getCalendarSummaryForRange(octxt, folderId, getItemType(), rangeStart, rangeEnd);
            if (result != null) {
                for (Iterator<CalendarItemData> itemIter = result.data.calendarItemIterator(); itemIter.hasNext(); ) {
                    CalendarItemData calItemData = itemIter.next();
                    int numInstances = calItemData.getNumInstances();
                    if (numInstances > 0) {
                        Element calItemElem = CacheToXML.encodeCalendarItemData(zsc, ifmt, calItemData, result.allowPrivateAccess, true);
                        response.addElement(calItemElem);
                    }
                }
            }
        } else {
            List<CalendarDataResult> calDataResultList = mbox.getAllCalendarsSummaryForRange(octxt, getItemType(), rangeStart, rangeEnd);
            for (CalendarDataResult result : calDataResultList) {
                for (Iterator<CalendarItemData> itemIter = result.data.calendarItemIterator(); itemIter.hasNext(); ) {
                    CalendarItemData calItemData = itemIter.next();
                    int numInstances = calItemData.getNumInstances();
                    if (numInstances > 0) {
                        Element calItemElem = CacheToXML.encodeCalendarItemData(zsc, ifmt, calItemData, result.allowPrivateAccess, true);
                        response.addElement(calItemElem);
                    }
                }
            }
        }
    } else {
        Collection<CalendarItem> calItems = mbox.getCalendarItemsForRange(octxt, getItemType(), rangeStart, rangeEnd, iidFolder.getId(), null);
        for (CalendarItem calItem : calItems) {
            EncodeCalendarItemResult encoded = encodeCalendarItemInstances(zsc, octxt, calItem, acct, rangeStart, rangeEnd, false);
            if (encoded.element != null)
                response.addElement(encoded.element);
        }
    }
    return response;
}