public static Calendar createCalendar(CalDavEvent calDavEvent, DateTimeZone timeZone) {
TimeZoneRegistry registry = TimeZoneRegistryFactory.getInstance().createRegistry();
TimeZone timezone = registry.getTimeZone(timeZone.getID());
Calendar calendar = new Calendar();
calendar.getProperties().add(Version.VERSION_2_0);
calendar.getProperties().add(new ProdId("openHAB"));
VEvent vEvent = new VEvent();
vEvent.getProperties().add(new Summary(calDavEvent.getName()));
vEvent.getProperties().add(new Description(calDavEvent.getContent()));
final DtStart dtStart =
new DtStart(new net.fortuna.ical4j.model.DateTime(calDavEvent.getStart().toDate()));
dtStart.setTimeZone(timezone);
vEvent.getProperties().add(dtStart);
final DtEnd dtEnd =
new DtEnd(new net.fortuna.ical4j.model.DateTime(calDavEvent.getEnd().toDate()));
dtEnd.setTimeZone(timezone);
vEvent.getProperties().add(dtEnd);
vEvent.getProperties().add(new Uid(calDavEvent.getId()));
vEvent.getProperties().add(Clazz.PUBLIC);
vEvent
.getProperties()
.add(
new LastModified(
new net.fortuna.ical4j.model.DateTime(calDavEvent.getLastChanged().toDate())));
calendar.getComponents().add(vEvent);
return calendar;
}
private static VEvent generateAllDayEventForScheduleActivity(
final Date date,
final ScheduledActivity scheduledActivity,
String baseUrl,
Boolean includeSubject) {
if (scheduledActivity.getCurrentState().getMode().equals(ScheduledActivityMode.SCHEDULED)
|| scheduledActivity
.getCurrentState()
.getMode()
.equals(ScheduledActivityMode.CONDITIONAL)) {
try {
VEvent vEvent =
new VEvent(
new net.fortuna.ical4j.model.Date(date.getTime()),
createEventSummary(scheduledActivity, includeSubject));
vEvent.getProperties().add(new Uid(scheduledActivity.getGridId()));
vEvent.getProperties().add(new Transp(Property.TRANSP));
vEvent.getProperty(Property.TRANSP).setValue("TRANSPARENT");
Description description = new Description(createEventDescription(scheduledActivity));
vEvent.getProperties().add(description);
vEvent.getProperties().add(new Url());
vEvent.getProperty(Property.URL).setValue(createActivityURL(scheduledActivity, baseUrl));
vEvent.getProperties().add(new DtEnd());
return vEvent;
} catch (URISyntaxException use) {
throw new StudyCalendarSystemException("Error while creating ics calendar", use);
} catch (IOException e) {
throw new StudyCalendarSystemException("Error while creating ics calendar", e);
} catch (ParseException pe) {
throw new StudyCalendarSystemException("Error while creating ics calendar", pe);
}
}
return null;
}
@Override
@SuppressWarnings("unchecked")
public ByteArrayOutputStream toEntity() throws IOException {
net.fortuna.ical4j.model.Calendar ical = new net.fortuna.ical4j.model.Calendar();
ical.getProperties().add(Version.VERSION_2_0);
ical.getProperties()
.add(new ProdId("-//bitfire web engineering//DAVdroid " + Constants.APP_VERSION + "//EN"));
VEvent event = new VEvent();
PropertyList props = event.getProperties();
if (uid != null) props.add(new Uid(uid));
props.add(dtStart);
if (dtEnd != null) props.add(dtEnd);
if (duration != null) props.add(duration);
if (rrule != null) props.add(rrule);
if (rdate != null) props.add(rdate);
if (exrule != null) props.add(exrule);
if (exdate != null) props.add(exdate);
if (summary != null && !summary.isEmpty()) props.add(new Summary(summary));
if (location != null && !location.isEmpty()) props.add(new Location(location));
if (description != null && !description.isEmpty()) props.add(new Description(description));
if (status != null) props.add(status);
if (!opaque) props.add(Transp.TRANSPARENT);
if (organizer != null) props.add(organizer);
props.addAll(attendees);
if (forPublic != null) event.getProperties().add(forPublic ? Clazz.PUBLIC : Clazz.PRIVATE);
event.getAlarms().addAll(alarms);
props.add(new LastModified());
ical.getComponents().add(event);
// add VTIMEZONE components
net.fortuna.ical4j.model.TimeZone tzStart = (dtStart == null ? null : dtStart.getTimeZone()),
tzEnd = (dtEnd == null ? null : dtEnd.getTimeZone());
if (tzStart != null) ical.getComponents().add(tzStart.getVTimeZone());
if (tzEnd != null && tzEnd != tzStart) ical.getComponents().add(tzEnd.getVTimeZone());
CalendarOutputter output = new CalendarOutputter(false);
ByteArrayOutputStream os = new ByteArrayOutputStream();
try {
output.output(ical, os);
} catch (ValidationException e) {
Log.e(TAG, "Generated invalid iCalendar");
}
return os;
}
/**
* @param newUid
* @param newEvent
* @return
*/
public VEvent newEvent(String newUid, String newEvent) {
VEvent ve = new VEvent();
DtStart dtStart = new DtStart(new DateTime());
Summary summary = new Summary(newEvent);
Uid uid = new Uid(newUid);
ve.getProperties().add(dtStart);
ve.getProperties().add(summary);
ve.getProperties().add(uid);
return ve;
}
/**
* Adds attendees to an existing event with a given role Common logic for addAttendeesToEvent and
* addChairAttendeestoEvent
*
* @param vevent the VEvent to add the attendess too
* @param attendees list of Users that have been invited to the event
* @param role the role with which to add each user
* @return the VEvent for the given event or null if there was an error
*/
protected VEvent addAttendeesToEventWithRole(VEvent vevent, List<User> attendees, Role role) {
if (!isIcsEnabled()) {
log.debug(
"ExternalCalendaringService is disabled. Enable via calendar.ics.generation.enabled=true in sakai.properties");
return null;
}
// add attendees to event with 'required participant' role
if (attendees != null) {
for (User u : attendees) {
Attendee a = new Attendee(createMailURI(u.getEmail()));
a.getParameters().add(role);
a.getParameters().add(new Cn(u.getDisplayName()));
a.getParameters().add(PartStat.ACCEPTED);
a.getParameters().add(Rsvp.FALSE);
vevent.getProperties().add(a);
}
}
if (log.isDebugEnabled()) {
log.debug("VEvent with attendees:" + vevent);
}
return vevent;
}
/** {@inheritDoc} */
public VEvent cancelEvent(VEvent vevent) {
if (!isIcsEnabled()) {
log.debug(
"ExternalCalendaringService is disabled. Enable via calendar.ics.generation.enabled=true in sakai.properties");
return null;
}
// You can only have one status so make sure we remove any previous ones.
vevent.getProperties().removeAll(vevent.getProperties(Property.STATUS));
vevent.getProperties().add(Status.VEVENT_CANCELLED);
// Must define a sequence for cancellations. If one was not defined when the event was created
// use 1
if (vevent.getProperties().getProperty(Property.SEQUENCE) == null) {
vevent.getProperties().add(new Sequence("1"));
}
if (log.isDebugEnabled()) {
log.debug("VEvent cancelled:" + vevent);
}
return vevent;
}
@Override
@SuppressWarnings("unchecked")
public String encode(List<CalendarEvent> events) {
if (events == null || events.isEmpty()) {
throw new IllegalArgumentException("The calendar events must be defined to encode them");
}
Calendar calendarIcs = new Calendar();
calendarIcs.getProperties().add(new ProdId("-//Silverpeas//iCal4j 1.1//FR"));
calendarIcs.getProperties().add(Version.VERSION_2_0);
calendarIcs.getProperties().add(CalScale.GREGORIAN);
List<VEvent> iCalEvents = new ArrayList<VEvent>();
ByteArrayOutputStream output = new ByteArrayOutputStream(10240);
for (CalendarEvent event : events) {
Date startDate = anICal4JDateCodec().encode(event.getStartDate());
Date endDate = anICal4JDateCodec().encode(event.getEndDate());
VEvent iCalEvent;
if (event.isOnAllDay() && startDate.equals(endDate)) {
iCalEvent = new VEvent(startDate, event.getTitle());
} else {
iCalEvent = new VEvent(startDate, endDate, event.getTitle());
}
// Generate UID
iCalEvent.getProperties().add(generator.generateUid());
// Add recurring data if any
if (event.isRecurring()) {
CalendarEventRecurrence eventRecurrence = event.getRecurrence();
Recur recur = anICal4JRecurrenceCodec().encode(eventRecurrence);
iCalEvent.getProperties().add(new RRule(recur));
iCalEvent.getProperties().add(exceptionDatesFrom(eventRecurrence));
}
// Add Description
iCalEvent.getProperties().add(new Description(event.getDescription()));
// Add Classification
iCalEvent.getProperties().add(new Clazz(event.getAccessLevel()));
// Add Priority
iCalEvent.getProperties().add(new Priority(event.getPriority()));
// Add location if any
if (!event.getLocation().isEmpty()) {
iCalEvent.getProperties().add(new Location(event.getLocation()));
}
// Add event URL if any
if (event.getUrl() != null) {
try {
iCalEvent.getProperties().add(new Url(event.getUrl().toURI()));
} catch (URISyntaxException ex) {
throw new EncodingException(ex.getMessage(), ex);
}
}
// Add Categories
TextList categoryList = new TextList(event.getCategories().asArray());
if (!categoryList.isEmpty()) {
iCalEvent.getProperties().add(new Categories(categoryList));
}
// Add attendees
for (String attendee : event.getAttendees().asList()) {
try {
iCalEvent.getProperties().add(new Attendee(attendee));
} catch (URISyntaxException ex) {
throw new EncodingException("Malformed attendee URI: " + attendee, ex);
}
}
iCalEvents.add(iCalEvent);
}
calendarIcs.getComponents().addAll(iCalEvents);
CalendarOutputter outputter = new CalendarOutputter();
try {
outputter.output(calendarIcs, output);
return output.toString(CharEncoding.UTF_8);
} catch (Exception ex) {
throw new EncodingException(
"The encoding of the events in iCal formatted text has failed!", ex);
} finally {
IOUtils.closeQuietly(output);
}
}
/** @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String[] courseids = request.getParameterValues("courses");
// Saving the course ids as a session attribute (not necessary, might be better for saving)
HttpSession session = request.getSession(true);
session.setAttribute("courses", courseids);
// Get course and time info for each id
if (courseids == null) {
} else {
try {
for (String id : courseids) {
Integer courseid = Integer.parseInt(id);
PreparedStatement getCourse =
con.prepareStatement(
"SELECT title, department, number, section " + "FROM courses WHERE id=?;");
getCourse.setInt(1, courseid);
PreparedStatement getTime =
con.prepareStatement(
"SELECT day, starttime, endtime FROM times " + "WHERE course_id=?;");
getTime.setInt(1, courseid);
ResultSet courseResult = getCourse.executeQuery();
ResultSet timesResult = getTime.executeQuery();
while (courseResult.next()) {
// Generating the course from the DB, lets us utilize timeblocks
Course course = new Course();
course.setTitle(courseResult.getString("title"));
course.setDepartment(courseResult.getString("department"));
course.setNumber(courseResult.getString("number"));
course.setSection(courseResult.getString("section"));
String courseTitle =
course.getDepartment()
+ course.getNumber()
+ "-"
+ course.getSection()
+ ": "
+ course.getTitle();
while (timesResult.next()) {
course.addTime(
timesResult.getString("day").charAt(0),
timesResult.getInt("starttime"),
timesResult.getInt("endtime"));
}
// Now parse the timeshttp://ical4j.sourceforge.net/introduction.html for the timeblocks
Map<String, Set<Character>> timeblocks = course.getTimeBlocks();
for (String startend : timeblocks.keySet()) {
String[] StartEnd = startend.split("-");
Integer startInt = Integer.parseInt(StartEnd[0]);
Integer endInt = Integer.parseInt(StartEnd[1]);
java.util.Calendar startDate = this.getTimeCalendar(startInt);
java.util.Calendar endDate = this.getTimeCalendar(endInt);
DateTime startTime = new DateTime(startDate.getTime());
DateTime endTime = new DateTime(endDate.getTime());
VEvent courseEvent = new VEvent(startTime, endTime, courseTitle);
Recur recur = new Recur(Recur.WEEKLY, null);
// add the proper days to the recurrence
for (char day : timeblocks.get(startend)) {
recur.getDayList().add(dayMap.get(day));
}
courseEvent.getProperties().add(new RRule(recur));
// Get unique identifier
UidGenerator ug = new UidGenerator("uidGen");
Uid uid = ug.generateUid();
courseEvent.getProperties().add(uid);
// Finally, add the time block to the calendar
this.ical.getComponents().add(courseEvent);
}
}
}
} catch (SQLException e) {
e.printStackTrace();
}
}
// Time to handle file download
try {
// making the file and outputting the calendar info
File file = new File("mycalendar.ics");
int length = 0;
FileOutputStream fout = new FileOutputStream(file);
CalendarOutputter outputter = new CalendarOutputter();
outputter.output(ical, fout);
ServletOutputStream outStream = response.getOutputStream();
response.setContentType("text/calendar");
response.setContentLength((int) file.length());
// sets HTTP header
response.setHeader("Content-Disposition", "attachment; filename=calendar.ics");
byte[] byteBuffer = new byte[BUFSIZE];
DataInputStream in = new DataInputStream(new FileInputStream(file));
// reads the file's bytes and writes them to the response stream
while ((in != null) && ((length = in.read(byteBuffer)) != -1)) {
outStream.write(byteBuffer, 0, length);
}
in.close();
outStream.close();
} catch (ValidationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
@SuppressWarnings("unchecked")
public void parseEntity(@NonNull InputStream entity)
throws IOException, InvalidResourceException {
net.fortuna.ical4j.model.Calendar ical;
try {
CalendarBuilder builder = new CalendarBuilder();
ical = builder.build(entity);
if (ical == null) throw new InvalidResourceException("No iCalendar found");
} catch (ParserException e) {
throw new InvalidResourceException(e);
}
// event
ComponentList events = ical.getComponents(Component.VEVENT);
if (events == null || events.isEmpty()) throw new InvalidResourceException("No VEVENT found");
VEvent event = (VEvent) events.get(0);
if (event.getUid() != null) uid = event.getUid().getValue();
else {
Log.w(TAG, "Received VEVENT without UID, generating new one");
generateUID();
}
if ((dtStart = event.getStartDate()) == null || (dtEnd = event.getEndDate()) == null)
throw new InvalidResourceException("Invalid start time/end time/duration");
if (hasTime(dtStart)) {
validateTimeZone(dtStart);
validateTimeZone(dtEnd);
}
// all-day events and "events on that day":
// * related UNIX times must be in UTC
// * must have a duration (set to one day if missing)
if (!hasTime(dtStart) && !dtEnd.getDate().after(dtStart.getDate())) {
Log.i(TAG, "Repairing iCal: DTEND := DTSTART+1");
Calendar c = Calendar.getInstance(TimeZone.getTimeZone(Time.TIMEZONE_UTC));
c.setTime(dtStart.getDate());
c.add(Calendar.DATE, 1);
dtEnd.setDate(new Date(c.getTimeInMillis()));
}
rrule = (RRule) event.getProperty(Property.RRULE);
rdate = (RDate) event.getProperty(Property.RDATE);
exrule = (ExRule) event.getProperty(Property.EXRULE);
exdate = (ExDate) event.getProperty(Property.EXDATE);
if (event.getSummary() != null) summary = event.getSummary().getValue();
if (event.getLocation() != null) location = event.getLocation().getValue();
if (event.getDescription() != null) description = event.getDescription().getValue();
status = event.getStatus();
opaque = true;
if (event.getTransparency() == Transp.TRANSPARENT) opaque = false;
organizer = event.getOrganizer();
for (Object o : event.getProperties(Property.ATTENDEE)) attendees.add((Attendee) o);
Clazz classification = event.getClassification();
if (classification != null) {
if (classification == Clazz.PUBLIC) forPublic = true;
else if (classification == Clazz.CONFIDENTIAL || classification == Clazz.PRIVATE)
forPublic = false;
}
this.alarms = event.getAlarms();
}
/** {@inheritDoc} */
public VEvent createEvent(CalendarEvent event, List<User> attendees) {
if (!isIcsEnabled()) {
log.debug(
"ExternalCalendaringService is disabled. Enable via calendar.ics.generation.enabled=true in sakai.properties");
return null;
}
// timezone. All dates are in GMT so we need to explicitly set that
TimeZoneRegistry registry = TimeZoneRegistryFactory.getInstance().createRegistry();
TimeZone timezone = registry.getTimeZone("GMT");
VTimeZone tz = timezone.getVTimeZone();
// start and end date
DateTime start = new DateTime(getStartDate(event.getRange()).getTime());
DateTime end = new DateTime(getEndDate(event.getRange()).getTime());
// create event incl title/summary
VEvent vevent = new VEvent(start, end, event.getDisplayName());
// add timezone
vevent.getProperties().add(tz.getTimeZoneId());
// add uid to event
// could come from the vevent_uuid field in the calendar event, otherwise from event ID.
String uuid = null;
if (StringUtils.isNotBlank(event.getField("vevent_uuid"))) {
uuid = event.getField("vevent_uuid");
} else {
uuid = event.getId();
}
vevent.getProperties().add(new Uid(uuid));
// add sequence to event
// will come from the vevent_sequnece field in the calendar event, otherwise skip it
String sequence = null;
if (StringUtils.isNotBlank(event.getField("vevent_sequence"))) {
sequence = event.getField("vevent_sequence");
vevent.getProperties().add(new Sequence(sequence));
}
// add description to event
vevent.getProperties().add(new Description(event.getDescription()));
// add location to event
vevent.getProperties().add(new Location(event.getLocation()));
// add organiser to event
if (StringUtils.isNotBlank(event.getCreator())) {
String creatorEmail = sakaiProxy.getUserEmail(event.getCreator());
URI mailURI = createMailURI(creatorEmail);
Cn commonName = new Cn(sakaiProxy.getUserDisplayName(event.getCreator()));
Organizer organizer = new Organizer(mailURI);
organizer.getParameters().add(commonName);
vevent.getProperties().add(organizer);
}
// add attendees to event with 'required participant' role
vevent = addAttendeesToEvent(vevent, attendees);
// add URL to event, if present
String url = null;
if (StringUtils.isNotBlank(event.getField("vevent_url"))) {
url = event.getField("vevent_url");
Url u = new Url();
try {
u.setValue(url);
vevent.getProperties().add(u);
} catch (URISyntaxException e) {
// it doesnt matter, ignore it
}
}
if (log.isDebugEnabled()) {
log.debug("VEvent:" + vevent);
}
return vevent;
}