Java Code Examples for net.fortuna.ical4j.data.CalendarOutputter#output()

public byte[] build() {
    TimeZoneRegistry registry = TimeZoneRegistryFactory.getInstance().createRegistry();
    TimeZone timezone = registry.getTimeZone(timeZone);
    VTimeZone tz = timezone.getVTimeZone();
    VEvent vEvent = new VEvent(toDate(this.start), toDate(this.end), this.title);
    vEvent.getProperties().add(tz.getTimeZoneId());
    vEvent.getProperties().add(uidGenerator.generateUid());
    vEvent.getProperties().add(new Description(this.content));
    vEvent.getProperties().add(new Location(this.location));

    net.fortuna.ical4j.model.Calendar icsCalendar = new net.fortuna.ical4j.model.Calendar();
    icsCalendar.getProperties().add(new ProdId("-//FredBet//iCal4j 1.0//EN"));
    icsCalendar.getProperties().add(CalScale.GREGORIAN);
    icsCalendar.getProperties().add(Version.VERSION_2_0);

    icsCalendar.getComponents().add(vEvent);

    try (ByteArrayOutputStream out = new ByteArrayOutputStream();) {
        CalendarOutputter outputter = new CalendarOutputter();
        outputter.output(icsCalendar, out);
        return out.toByteArray();
    } catch (IOException e) {
        LOG.error(e.getMessage());
        return null;
    }
}
 

/**
 * Export the calendar to the given output writer.
 *
 * @param calendar the source {@link ICalendar}
 * @param writer the output writer
 * @throws IOException
 * @throws ParseException
 * @throws ValidationException
 */
public void export(ICalendar calendar, Writer writer)
    throws IOException, ParseException, ValidationException {
  Preconditions.checkNotNull(calendar, "calendar can't be null");
  Preconditions.checkNotNull(writer, "writer can't be null");
  Preconditions.checkNotNull(getICalendarEvents(calendar), "can't export empty calendar");

  Calendar cal = newCalendar();
  cal.getProperties().add(new XProperty(X_WR_CALNAME, calendar.getName()));

  for (ICalendarEvent item : getICalendarEvents(calendar)) {
    VEvent event = createVEvent(item);
    cal.getComponents().add(event);
  }

  CalendarOutputter outputter = new CalendarOutputter();
  outputter.output(cal, writer);
}
 

protected void printICalSchedule(String calendarName, List<String> calRefs, OutputStream os)
//	protected void printICalSchedule(String calRef, OutputStream os) 
		throws PermissionException
	{
		// generate iCal text file 
		net.fortuna.ical4j.model.Calendar ical = new net.fortuna.ical4j.model.Calendar();
		ical.getProperties().add(new ProdId("-//SakaiProject//iCal4j 1.0//EN"));
		ical.getProperties().add(Version.VERSION_2_0);
		ical.getProperties().add(CalScale.GREGORIAN);
		ical.getProperties().add(new XProperty("X-WR-CALNAME", calendarName));
		ical.getProperties().add(new XProperty("X-WR-CALDESC", calendarName));
		
		TimeZoneRegistry registry = TimeZoneRegistryFactory.getInstance().createRegistry(); 
		TzId tzId = new TzId( m_timeService.getLocalTimeZone().getID() ); 
		ical.getComponents().add(registry.getTimeZone(tzId.getValue()).getVTimeZone());
		
		CalendarOutputter icalOut = new CalendarOutputter();
		int numEvents = generateICal(ical, calRefs);
			
		try 
		{
			if (numEvents > 0) {
				icalOut.output( ical, os );
			}
		}
		catch (Exception e)
		{
           log.warn(".printICalSchedule(): ", e);
		}
	}
 

/**
 * 获取一个日程事件转换为ICAL后的内容信息
 * @param o2_calendar_event
 * @throws ValidationException
 * @throws IOException
 */
public String getiCalContent( Calendar_Event o2_calendar_event) throws ValidationException, IOException{
	net.fortuna.ical4j.model.Calendar calendar = parseToiCal(o2_calendar_event);
	CalendarOutputter calendarOutputter = new CalendarOutputter(false); 
	ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
	calendarOutputter.output(calendar, baos); 
	return new String(baos.toByteArray(), "utf-8");
}
 

private boolean writeCalendarFile(final Calendar calendar, final String calType, final String calId) {
    final File fCalendarFile = getCalendarFile(calType, calId);
    OutputStream os = null;
    try {
        os = new BufferedOutputStream(new FileOutputStream(fCalendarFile, false));
        final CalendarOutputter calOut = new CalendarOutputter(false);
        calOut.output(calendar, os);
    } catch (final Exception e) {
        return false;
    } finally {
        FileUtils.closeSafely(os);
    }
    return true;
}
 

/**
 * 获取一个日程事件转换为ICAL后的内容信息
 * @param o2_calendar_event
 * @throws ValidationException
 * @throws IOException
 */
public String getiCalContent( Calendar_Event o2_calendar_event) throws ValidationException, IOException{
	net.fortuna.ical4j.model.Calendar calendar = parseToiCal(o2_calendar_event);
	CalendarOutputter calendarOutputter = new CalendarOutputter(false); 
	ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
	calendarOutputter.output(calendar, baos); 
	return new String(baos.toByteArray(), "utf-8");
}
 

/**
 * Write iCal to File
 *
 * @param _filerPath
 *            - path to '*.ics' file
 * @throws Exception
 *             - in case of error during writing to the file
 */
public void writeDataToFile(String _filerPath) throws Exception {
	String filerPath = _filerPath.endsWith(".ics") ? _filerPath
			: String.format("%s.ics", _filerPath);

	try (FileOutputStream fout = new FileOutputStream(filerPath)) {
		CalendarOutputter outputter = new CalendarOutputter();
		outputter.output(icsCalendar, fout);
	}
}
 

private boolean writeCalendarFile(final Calendar calendar, final String calType, final String calId) {
    final File fCalendarFile = getCalendarFile(calType, calId);
    OutputStream os = null;
    try {
        os = new BufferedOutputStream(new FileOutputStream(fCalendarFile, false));
        final CalendarOutputter calOut = new CalendarOutputter(false);
        calOut.output(calendar, os);
    } catch (final Exception e) {
        return false;
    } finally {
        FileUtils.closeSafely(os);
    }
    return true;
}
 

protected void printICalSchedule(String calendarName, List<String> calRefs, OutputStream os)
//	protected void printICalSchedule(String calRef, OutputStream os) 
		throws PermissionException
	{
		// generate iCal text file 
		net.fortuna.ical4j.model.Calendar ical = new net.fortuna.ical4j.model.Calendar();
		ical.getProperties().add(new ProdId("-//SakaiProject//iCal4j 1.0//EN"));
		ical.getProperties().add(Version.VERSION_2_0);
		ical.getProperties().add(CalScale.GREGORIAN);
		ical.getProperties().add(new XProperty("X-WR-CALNAME", calendarName));
		ical.getProperties().add(new XProperty("X-WR-CALDESC", calendarName));
		
		TimeZoneRegistry registry = TimeZoneRegistryFactory.getInstance().createRegistry(); 
		TzId tzId = new TzId( m_timeService.getLocalTimeZone().getID() ); 
		ical.getComponents().add(registry.getTimeZone(tzId.getValue()).getVTimeZone());
		
		CalendarOutputter icalOut = new CalendarOutputter();
		int numEvents = generateICal(ical, calRefs);
			
		try 
		{
			if (numEvents > 0) {
				icalOut.output( ical, os );
			}
		}
		catch (Exception e)
		{
           log.warn(".printICalSchedule(): ", e);
		}
	}
 

@Override
protected void doGet(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException
{
  if (WebConfiguration.isUpAndRunning() == false) {
    log.error("System isn't up and running, CalendarFeed call denied. The system is may-be in start-up phase or in maintenance mode.");
    resp.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
    return;
  }
  PFUserDO user = null;
  String logMessage = null;
  try {
    MDC.put("ip", req.getRemoteAddr());
    MDC.put("session", req.getSession().getId());
    if (StringUtils.isBlank(req.getParameter("user")) || StringUtils.isBlank(req.getParameter("q"))) {
      resp.sendError(HttpStatus.SC_BAD_REQUEST);
      log.error("Bad request, parameters user and q not given. Query string is: " + req.getQueryString());
      return;
    }
    final String encryptedParams = req.getParameter("q");
    final Integer userId = NumberHelper.parseInteger(req.getParameter("user"));
    if (userId == null) {
      log.error("Bad request, parameter user is not an integer: " + req.getQueryString());
      return;
    }
    final Registry registry = Registry.instance();
    user = registry.getUserGroupCache().getUser(userId);
    if (user == null) {
      log.error("Bad request, user not found: " + req.getQueryString());
      return;
    }
    PFUserContext.setUser(user);
    MDC.put("user", user.getUsername());
    final String decryptedParams = registry.getDao(UserDao.class).decrypt(userId, encryptedParams);
    if (decryptedParams == null) {
      log.error("Bad request, can't decrypt parameter q (may-be the user's authentication token was changed): " + req.getQueryString());
      return;
    }
    final Map<String, String> params = StringHelper.getKeyValues(decryptedParams, "&");
    final Calendar calendar = createCal(params, userId, params.get("token"), params.get(PARAM_NAME_TIMESHEET_USER));
    final StringBuffer buf = new StringBuffer();
    boolean first = true;
    for (final Map.Entry<String, String> entry : params.entrySet()) {
      if ("token".equals(entry.getKey()) == true) {
        continue;
      }
      first = StringHelper.append(buf, first, entry.getKey(), ", ");
      buf.append("=").append(entry.getValue());
    }
    logMessage = buf.toString();
    log.info("Getting calendar entries for: " + logMessage);

    if (calendar == null) {
      resp.sendError(HttpStatus.SC_BAD_REQUEST);
      log.error("Bad request, can't find calendar.");
      return;
    }

    resp.setContentType("text/calendar");
    final CalendarOutputter output = new CalendarOutputter(false);
    try {
      output.output(calendar, resp.getOutputStream());
    } catch (final ValidationException ex) {
      ex.printStackTrace();
    }
  } finally {
    log.info("Finished request: " + logMessage);
    PFUserContext.setUser(null);
    MDC.remove("ip");
    MDC.remove("session");
    if (user != null) {
      MDC.remove("user");
    }
  }
}
 

public void simpleInvitionIcalLink() {
	// Create a TimeZone
	TimeZoneRegistry registry = TimeZoneRegistryFactory.getInstance().createRegistry();
	TimeZone timezone = registry.getTimeZone("America/Mexico_City");
	VTimeZone tz = timezone.getVTimeZone();

	// Start Date is on: April 1, 2008, 9:00 am
	java.util.Calendar startDate = new GregorianCalendar();
	startDate.setTimeZone(timezone);
	startDate.set(java.util.Calendar.MONTH, java.util.Calendar.APRIL);
	startDate.set(java.util.Calendar.DAY_OF_MONTH, 1);
	startDate.set(java.util.Calendar.YEAR, 2008);
	startDate.set(java.util.Calendar.HOUR_OF_DAY, 9);
	startDate.set(java.util.Calendar.MINUTE, 0);
	startDate.set(java.util.Calendar.SECOND, 0);

	// End Date is on: April 1, 2008, 13:00
	java.util.Calendar endDate = new GregorianCalendar();
	endDate.setTimeZone(timezone);
	endDate.set(java.util.Calendar.MONTH, java.util.Calendar.APRIL);
	endDate.set(java.util.Calendar.DAY_OF_MONTH, 1);
	endDate.set(java.util.Calendar.YEAR, 2008);
	endDate.set(java.util.Calendar.HOUR_OF_DAY, 13);
	endDate.set(java.util.Calendar.MINUTE, 0);
	endDate.set(java.util.Calendar.SECOND, 0);

	// Create the event
	String eventName = "Progress Meeting";
	DateTime start = new DateTime(startDate.getTime());
	DateTime end = new DateTime(endDate.getTime());
	VEvent meeting = new VEvent(start, end, eventName);

	// add timezone info..
	meeting.getProperties().add(tz.getTimeZoneId());

	// generate unique identifier..
	Uid uid = new Uid(randomUUID().toString());
	meeting.getProperties().add(uid);

	// add attendees..
	Attendee dev1 = new Attendee(URI.create("mailto:[email protected]"));
	dev1.getParameters().add(Role.REQ_PARTICIPANT);
	dev1.getParameters().add(new Cn("Developer 1"));
	meeting.getProperties().add(dev1);

	Attendee dev2 = new Attendee(URI.create("mailto:[email protected]"));
	dev2.getParameters().add(Role.OPT_PARTICIPANT);
	dev2.getParameters().add(new Cn("Developer 2"));
	meeting.getProperties().add(dev2);

	// Create a calendar
	net.fortuna.ical4j.model.Calendar icsCalendar = new net.fortuna.ical4j.model.Calendar();
	icsCalendar.getProperties().add(
			new ProdId("-//Events Calendar//iCal4j 1.0//EN"));
	icsCalendar.getProperties().add(CalScale.GREGORIAN);
	icsCalendar.getProperties().add(Version.VERSION_2_0);

	// Add the event and print
	icsCalendar.getComponents().add(meeting);

	Organizer orger = new Organizer(URI.create("[email protected]"));
	orger.getParameters().add(new Cn("Sebastian Wagner"));
	meeting.getProperties().add(orger);

	icsCalendar.getProperties().add(Method.REQUEST);

	log.debug(icsCalendar.toString());

	ByteArrayOutputStream bout = new ByteArrayOutputStream();
	CalendarOutputter outputter = new CalendarOutputter();
	try {
		outputter.output(icsCalendar, bout);
		iCalMimeBody = bout.toByteArray();

		sendIcalMessage();
	} catch (Exception e) {
		log.error("Error", e);
	}
}
 

/**
    * Convert Calendar object to String.
    * 
    * @param calendar
    * @return string representation of calendar
    * @throws ValidationException
    *             - if something is wrong this exception is thrown.
    * @throws IOException
    *             - if something is wrong this exception is thrown.
    */
   public static String outputCalendar(Calendar calendar) throws ValidationException, IOException {
if (calendar == null) {
    return null;
}
CalendarOutputter outputter = new CalendarOutputter();
StringWriter sw = new StringWriter();
outputter.output(calendar, sw);
return sw.toString();
   }
 

/**
 * Writes an iCalendar string representing the calendar items contained within the given calendar collection to the
 * given output stream.
 *
 * Since the calendar content stored with each calendar items is parsed and validated when the item is created,
 * these errors should not reoccur when the calendar is being outputted.
 *
 * @param collection the <code>CollectionItem</code> to format
 *
 * @throws IllegalArgumentException if the collection is not stamped as a calendar collection
 * @throws IOException
 */
public static void output(Calendar calendar, OutputStream out) throws IOException {

    CalendarOutputter outputter = new CalendarOutputter();
    outputter.setValidating(false);
    try {
        outputter.output(calendar, out);
    } catch (ValidationException e) {
        throw new IllegalStateException("unable to validate collection calendar", e);
    }
}
 

/**
 * Get IcalBody as ByteArray
 *
 * @return - calendar in ICS format as byte[]
 * @throws Exception
 *             - in case of error during writing to byte array
 */
public byte[] getIcalAsByteArray() throws Exception {
	ByteArrayOutputStream bout = new ByteArrayOutputStream();
	CalendarOutputter outputter = new CalendarOutputter();
	outputter.output(icsCalendar, bout);
	return bout.toByteArray();
}
 

/**
 * 将一个日程事件写为一个ical文件
 * @param o2_calendar_event
 * @param path
 * @throws ValidationException
 * @throws IOException
 */
public void writeiCal( Calendar_Event o2_calendar_event, String path ) throws ValidationException, IOException{
	net.fortuna.ical4j.model.Calendar calendar = parseToiCal(o2_calendar_event);
	FileOutputStream fout = new FileOutputStream("D://2.ics");
       CalendarOutputter outputter = new CalendarOutputter();
       outputter.output(calendar, fout );
}
 

/**
 * 将一个日程事件写为一个ical文件
 * @param o2_calendar_event
 * @param path
 * @throws ValidationException
 * @throws IOException
 */
public void writeiCal( Calendar_Event o2_calendar_event, String path ) throws ValidationException, IOException{
	net.fortuna.ical4j.model.Calendar calendar = parseToiCal(o2_calendar_event);
	FileOutputStream fout = new FileOutputStream("D://2.ics");
       CalendarOutputter outputter = new CalendarOutputter();
       outputter.output(calendar, fout );
}
 

/**
 * 将一个日程事件写为一个ical文件
 * @param o2_calendar_event
 * @param out
 * @throws ValidationException
 * @throws IOException
 */
public void wirteiCal( Calendar_Event o2_calendar_event, OutputStream out ) throws ValidationException, IOException{
	net.fortuna.ical4j.model.Calendar calendar = parseToiCal(o2_calendar_event);
       CalendarOutputter outputter = new CalendarOutputter();
       outputter.output(calendar, out );
}
 

/**
 * 将一个日程事件写为一个ical文件
 * @param o2_calendar_event
 * @param out
 * @throws ValidationException
 * @throws IOException
 */
public void wirteiCal( Calendar_Event o2_calendar_event, OutputStream out ) throws ValidationException, IOException{
	net.fortuna.ical4j.model.Calendar calendar = parseToiCal(o2_calendar_event);
       CalendarOutputter outputter = new CalendarOutputter();
       outputter.output(calendar, out );
}