func (hub *Hub) processRequest(socket *mexsocket.MexSocket, req *message.Request) {
if req == nil {
return
}
switch req.MexType {
//create a new answer and send it over the channel
case message.Identity:
answer := message.NewAnswerIdentity(socket.Id)
socket.Send(answer)
//get the list of connected clients, remove the current one and send it over the channel
case message.List:
//the resulting list is []interface{}
list := set.Difference(hub.idSet, set.New(socket.Id)).List()
//create new answer
answer := new(message.Answer)
answer.MexType = message.List
answer.Payload = convertSetList(list)
socket.Send(answer)
case message.Relay:
//create an answer containing the payload
answer := message.NewAnswerRelay(req.Body)
//call hub to send the message to the list of clients provided
hub.Multicast(req.Receivers, answer)
}
}
