public int execute(JoinCommand command)
{
// delay
this.delay();
if (this.isFrozen)
{
this.frozenCommands.Add(command);
while (true)
{
// freeze
}
return(0);
}
else
{
Console.WriteLine("Recieved " + command.getType() + "-" +
command.getSequenceNumber() + " command from " + command.getIssuerId());
MeetingProposal meeting = this.getMeetingByTopic(command.getTopic());
if (meeting == null)
{
Console.WriteLine("Meeting {0} not found, Contacting other servers ...", command.getTopic());
meeting = this.restoreLostMeeting(command.getTopic());
// Console.WriteLine("Meeting {0} not found, Waiting ...");
// Thread.Sleep(2000);
if (meeting == null)
{
Console.WriteLine("Meeting {0} not found", command.getTopic());
return(0);
}
}
if (meeting.isClosed() || meeting.isCancelled())
{
// a client can join a closed meeting if it was joined before the closing momment
if (command.getTimestamp().CompareTo(meeting.getClosingTimestamp()) < 0)
{
meeting.open();
this.joinMeeting(command.getIssuerId(), meeting, command.getDesiredSlots());
meeting.close();
}
}
else
{
this.joinMeeting(command.getIssuerId(), meeting, command.getDesiredSlots());
}
this.informOtherServers(command);
return(1);
}
}
private void joinMeeting(string client_id, MeetingProposal proposal, List <Slot> desiredSlots)
{
Monitor.Enter(this.meetings);
// client cannot join a meeting if it is closed or cancelled
if (proposal.isClosed() || proposal.isCancelled())
{
return;
}
proposal.addParticipant(client_id, desiredSlots);
Console.WriteLine(client_id + " joined " + proposal.getTopic());
Monitor.Exit(this.meetings);
}
public MeetingProposal(MeetingProposal proposal)
{
this.coordinator = proposal.getCoordinator();
this.topic = proposal.getTopic();
this.min_attendees = proposal.min_attendees;
this.slots = proposal.getSlots();
this.invitees = proposal.invitees;
this.closed = proposal.isClosed();
this.cancelled = proposal.isCancelled();
this.participants = proposal.getParticipants();
this.finalParticipants = proposal.getFinalParticipants();
this.closingTimestamp = proposal.getClosingTimestamp();
this.selectedRoom = proposal.selectedRoom;
this.selectedSlot = proposal.selectedSlot;
this.roomsManager = proposal.roomsManager;
}
