/// <summary>
/// Merges a users appointment schedule from with appointments generated from a
/// GoogleApps feed
/// </summary>
/// <param name="user">User to update with Google Apps information</param>
/// <param name="googleAppsFeed">Source feed to generate appointment information</param>
/// <param name="exchangeGateway">Gateway to sync Appointments with</param>
/// <param name="window">DateRange to sync for</param>
public void SyncUser(
ExchangeUser user,
EventFeed googleAppsFeed,
ExchangeService exchangeGateway,
DateTimeRange window)
{
exchangeGateway.GetCalendarInfoForUser(user, window);
if (!user.HaveAppointmentDetail)
{
// Cannot sync if there is no appointment detail
log.InfoFormat("Skipped Sync of {0} due to missing appointment lookup failure", user.Email);
return;
}
List <Appointment> toUpdate = new List <Appointment>();
List <Appointment> toDelete = new List <Appointment>();
List <Appointment> toCreate = new List <Appointment>();
OlsonTimeZone feedTimeZone = OlsonUtil.GetTimeZone(googleAppsFeed.TimeZone.Value);
IntervalTree <Appointment> gcalApptTree =
CreateAppointments(user, feedTimeZone, googleAppsFeed);
/* Iterate through each Free/Busy time block for the user */
foreach (FreeBusyTimeBlock fbtb in user.BusyTimes.Values)
{
/* Iterate through each appointment for the Free/Busy time block */
foreach (Appointment appt in fbtb.Appointments)
{
log.Debug(String.Format("Exchange @ '{0} {1}'",
appt.Range,
ValidateOwnership(appt)));
/* Validate that this is a GCalender appoint */
if (ValidateOwnership(appt))
{
/* If the GCalender appointments do not contain an
* appointment for this period, add it for deletion */
if (gcalApptTree.FindExact(appt.Range) == null)
{
toDelete.Add(appt);
}
}
}
}
/* Iterate through each Google Apps appointment */
AppointmentCollection appointments = user.BusyTimes.Appointments;
List <Appointment> gcalApptList = gcalApptTree.GetNodeList();
foreach (Appointment newAppt in gcalApptList)
{
// If the meeting was cancelled
log.DebugFormat("Looking @ {0} {1}", newAppt.Range, newAppt.Range.Start.Kind);
if (newAppt.MeetingStatus == MeetingStatus.Cancelled)
{
// Check if there is an existing appointment that matches
List <Appointment> matches = appointments.Get(newAppt.Range);
foreach (Appointment a in matches)
{
if (ValidateOwnership(a))
{
toDelete.Add(a);
}
}
// Work is done for this appointment, continue to next entry
continue;
}
bool updatedAppointment = false;
List <Appointment> apptList = appointments.Get(newAppt.Range);
log.DebugFormat("Looking up preexisting event: {0} {1}", newAppt.Range, newAppt.Range.Start.Kind);
log.DebugFormat("Found {0} matching items", apptList.Count);
// Check that there is a free busy block that correlates with this appointment
foreach (Appointment existingAppt in apptList)
{
if (ValidateOwnership(existingAppt) && !updatedAppointment)
{
UpdateAppointmentInfo(existingAppt, newAppt);
toUpdate.Add(existingAppt);
updatedAppointment = true;
}
}
if (!updatedAppointment)
{
toCreate.Add(newAppt);
log.DebugFormat("ADDING '{0}' - Not an update",
newAppt.Range);
}
}
if (log.IsInfoEnabled)
{
log.InfoFormat(
"AppointmentWriter for '{0}'. [{1} deleted, {2} updated, {3} new]",
user.Email,
toDelete.Count,
toUpdate.Count,
toCreate.Count);
}
exchangeGateway.Appointments.DeleteAppointments(user, toDelete);
// TODO: Updates are not currently published
// exchangeGateway.Appointments.UpdateAppointments( user, updateAppointments );
exchangeGateway.Appointments.WriteAppointments(user, toCreate);
}
/// <summary>
/// Create a new Free Busy Collection
/// </summary>
public FreeBusyCollection() : base()
{
this.appointments = new AppointmentCollection();
}