kapilgupta101292/Java mail Create-Delete Appointment

## Java mail Create-Delete Appointment
  public void sendOutlookMail() throws Exception {

        String toEmail = "abc@xyz.com";
        String fromEmail = "xyz@abc.com";

        //register the text/calendar mime type
        MimetypesFileTypeMap mimetypes = (MimetypesFileTypeMap) MimetypesFileTypeMap.getDefaultFileTypeMap();

        mimetypes.addMimeTypes("text/calendar ics ICS");

        //register the handling of text/calendar mime type
        MailcapCommandMap mailcap = (MailcapCommandMap) MailcapCommandMap.getDefaultCommandMap();
        mailcap.addMailcap("text/calendar;; x-java-content-handler=com.sun.mail.handlers.text_plain");

        MimeMessage message = new MimeMessage(session);
        message.setFrom(new InternetAddress(fromEmail));
        message.setSubject("Test");
        message.addRecipient(Message.RecipientType.TO, new InternetAddress(toEmail));

        Multipart multipart = new MimeMultipart("alternative");

        BodyPart messageBodyPart = buildHtmlTextPart();
        multipart.addBodyPart(messageBodyPart);

        BodyPart calendarPart = buildCalendarPart();
        multipart.addBodyPart(calendarPart);

        message.setContent(multipart);

        Transport transport = session.getTransport("smtp");
        transport.connect();
        transport.sendMessage(message, message.getAllRecipients());
        transport.close();

    }


    private BodyPart buildHtmlTextPart() throws MessagingException {

        MimeBodyPart descriptionPart = new MimeBodyPart();

        //Note: even if the content is spcified as being text/html, outlook won't read correctly tables at all
        // and only some properties from div:s. Thus, try to avoid too fancy content
        String content = "<font size=\"2\"> simple meeting invitation</font >";
        descriptionPart.setContent(content, "text/html; charset=utf-8");

        return descriptionPart;
    }

    private BodyPart buildCalendarPart() throws Exception {
        BodyPart calendarPart = new MimeBodyPart();

        //create.ics
        String calendarContent = "BEGIN:VCALENDAR\n"
                + "METHOD:REQUEST\n"
                + "PRODID:Microsoft Exchange Server 2010\n"
                + "VERSION:2.0\n"
                + "BEGIN:VTIMEZONE\n"
                + "TZID:India Standard Time\n"
                + "BEGIN:STANDARD\n"
                + "DTSTART:16010101T000000\n"
                + "TZOFFSETFROM:+0530\n"
                + "TZOFFSETTO:+0530\n"
                + "END:STANDARD\n"
                + "BEGIN:DAYLIGHT\n"
                + "DTSTART:16010101T000000\n"
                + "TZOFFSETFROM:+0530\n"
                + "TZOFFSETTO:+0530\n"
                + "END:DAYLIGHT\n"
                + "END:VTIMEZONE\n"
                + "BEGIN:VEVENT\n"
                + "ORGANIZER;CN=Test Sirion:MAILTO:xyz@abc.com\n"
                + "ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Kapil Gupta:MAILTO:abc.xyz.com\n"
                + "DESCRIPTION;LANGUAGE=en-US:\\n\n"
                + "UID:040000008200E00074C5B7101A82E00800000000908EB51F4E28D501000000000000000\n"
                + " 01000000000ED265B41C38B479A5315D1D23383D4\n"
                + "SUMMARY;LANGUAGE=en-US:New Meeting\n"
                + "DTSTART;TZID=India Standard Time:20190622T080000\n"
                + "DTEND;TZID=India Standard Time:20190622T083000\n"
                + "CLASS:PUBLIC\n"
                + "PRIORITY:5\n"
                + "DTSTAMP:20190621T105648Z\n"
                + "TRANSP:OPAQUE\n"
                + "STATUS:CONFIRMED\n"
                + "SEQUENCE:0\n"
                + "LOCATION;LANGUAGE=en-US:\n"
                + "X-MICROSOFT-CDO-APPT-SEQUENCE:0\n"
                + "X-MICROSOFT-CDO-OWNERAPPTID:-2091554845\n"
                + "X-MICROSOFT-CDO-BUSYSTATUS:TENTATIVE\n"
                + "X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY\n"
                + "X-MICROSOFT-CDO-ALLDAYEVENT:FALSE\n"
                + "X-MICROSOFT-CDO-IMPORTANCE:1\n"
                + "X-MICROSOFT-CDO-INSTTYPE:0\n"
                + "X-MICROSOFT-DONOTFORWARDMEETING:FALSE\n"
                + "X-MICROSOFT-DISALLOW-COUNTER:FALSE\n"
                + "X-MICROSOFT-LOCATIONS:[]\n"
                + "BEGIN:VALARM\n"
                + "DESCRIPTION:REMINDER\n"
                + "TRIGGER;RELATED=START:-PT15M\n"
                + "ACTION:DISPLAY\n"
                + "END:VALARM\n"
                + "END:VEVENT\n"
                + "END:VCALENDAR\n";

        String calendarContent1 = "BEGIN:VCALENDAR\n"
                + "METHOD:CANCEL\n"
                + "PRODID:Microsoft Exchange Server 2010\n"
                + "VERSION:2.0\n"
                + "BEGIN:VTIMEZONE\n"
                + "TZID:India Standard Time\n"
                + "BEGIN:STANDARD\n"
                + "DTSTART:16010101T000000\n"
                + "TZOFFSETFROM:+0530\n"
                + "TZOFFSETTO:+0530\n"
                + "END:STANDARD\n"
                + "BEGIN:DAYLIGHT\n"
                + "DTSTART:16010101T000000\n"
                + "TZOFFSETFROM:+0530\n"
                + "TZOFFSETTO:+0530\n"
                + "END:DAYLIGHT\n"
                + "END:VTIMEZONE\n"
                + "BEGIN:VEVENT\n"
                + "ORGANIZER;CN=Test Sirion:MAILTO:xyz@abc.com\n"
                + "ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Kapil Gupta:MAILTO:abc.xyz.com\n"
                + "DESCRIPTION;LANGUAGE=en-US:\\n\n"
                + "UID:040000008200E00074C5B7101A82E00800000000908EB51F4E28D501000000000000000\n"
                + " 01000000000ED265B41C38B479A5315D1D23383D4\n"
                + "SUMMARY;LANGUAGE=en-US:Canceled: New Meeting\n"
                + "DTSTART;TZID=India Standard Time:20190622T080000\n"
                + "DTEND;TZID=India Standard Time:20190622T083000\n"
                + "CLASS:PUBLIC\n"
                + "PRIORITY:1\n"
                + "DTSTAMP:20190621T110026Z\n"
                + "TRANSP:TRANSPARENT\n"
                + "STATUS:CANCELLED\n"
                + "SEQUENCE:1\n"
                + "LOCATION;LANGUAGE=en-US:\n"
                + "X-MICROSOFT-CDO-APPT-SEQUENCE:1\n"
                + "X-MICROSOFT-CDO-OWNERAPPTID:-2091554845\n"
                + "X-MICROSOFT-CDO-BUSYSTATUS:FREE\n"
                + "X-MICROSOFT-CDO-INTENDEDSTATUS:FREE\n"
                + "X-MICROSOFT-CDO-ALLDAYEVENT:FALSE\n"
                + "X-MICROSOFT-CDO-IMPORTANCE:2\n"
                + "X-MICROSOFT-CDO-INSTTYPE:0\n"
                + "X-MICROSOFT-DONOTFORWARDMEETING:FALSE\n"
                + "X-MICROSOFT-DISALLOW-COUNTER:FALSE\n"
                + "END:VEVENT\n"
                + "END:VCALENDAR\n";

        System.out.println(calendarContent);
        System.out.println(calendarContent1);

        calendarPart.addHeader("Content-Class", "urn:content-classes:calendarmessage");

       // set calendar part as create.ics
       // this code is commented while sending the delete request on the appointment.
       calendarPart.setContent(calendarContent, "text/calendar;method=REQUEST");

       // set calendar part as delete.ics
       // commented while sending the meeting request
       calendarPart.setContent(calendarContent1, "text/calendar;method=CANCEL");


        return calendarPart;
    }