protected override void Execute(object sender, System.ComponentModel.DoWorkEventArgs args)
{
lock (ClientConnectionList)
{
ClientConnectionList.Remove(ClientConnection);
}
if (ClientConnection.ClientID.IsAuthenticated)
{
UserLocation loc = new UserLocation(ClientConnection.ClientID.Username);
lock (UserLocations)
{
Int32 index = UserLocations.IndexOf(loc);
if (index > -1)
{
loc = UserLocations[index];
UserLocations.Remove(loc);
lock (ClientConnectionList)
{
ClientConnectionList.NotifyAllAuthenticatedClients(new RemoveGeoPointMessage(loc));
}
args.Result = ClientConnection.ClientID.Username + " disconnected from server, other clients has been notified";
}
else
{
args.Result = ClientConnection.ClientID.Username + " disconnected from server";
}
}
}
else
{
args.Result = ClientConnection.RemoteEndPoint.ToString() + " disconnected from server";
}
}
protected override void Execute(object sender, System.ComponentModel.DoWorkEventArgs args)
{
UserLocation loc = new UserLocation(GeoPointMessage.UserLocation.Username);
lock (UserLocations)
{
Int32 index = UserLocations.IndexOf(loc);
if (index > -1)
{
UserLocations.RemoveAt(index);
UserLocations.Insert(index, GeoPointMessage.UserLocation);
lock (ClientConnectionList)
{
ClientConnectionList.NotifyAllAuthenticatedClientsExcept(ClientConnection, GeoPointMessage); // notify other observers
}
}
else
{
UserLocations.Add(GeoPointMessage.UserLocation);
lock (ClientConnectionList)
{
ClientConnectionList.NotifyAllAuthenticatedClientsExcept(ClientConnection, GeoPointMessage); // notify other observers
}
}
}
args.Result = ClientConnection.ClientID.Username + " broadcasted his location, other clients were notified";
}
public GeoPointMessage(UserLocation userLocation)
{
UserLocation = userLocation;
}
public override AbstractMessage Parse(String xml)
{
XmlTextReader reader = new XmlTextReader(new StringReader(xml));
AbstractMessage returnee = null;
String element = "";
String username = "";
Boolean isAccepted = false;
GeoPoint geoPoint = null;
Int32 longtitude = 0;
Int32 latitude = 0;
Int32 gender = 0x0A0; // please set to initial gender => male
Int32 bgColour = 0x0B7; // colour => orange
List<UserLocation> userLocations = null;
UserLocation userLocation = null;
try
{
while (reader.Read())
{
switch (reader.NodeType)
{
case XmlNodeType.CDATA:
switch (element)
{
default:
break;
}
break;
case XmlNodeType.Element:
element = reader.Name; // define last known element
switch (element)
{
case "UserLocations":
userLocations = new List<UserLocation>();
break;
default:
break;
}
break;
case XmlNodeType.EndElement:
switch (reader.Name)
{
case "InitRequestMessage":
returnee = new InitRequestMessage(username);
break;
case "InitResponseMessage":
returnee = new InitResponseMessage(isAccepted);
break;
case "GeoPointMessage":
returnee = new GeoPointMessage(userLocation);
break;
case "MultipleGeoPointRequestMessage":
returnee = new MultipleGeoPointRequestMessage();
break;
case "MultipleGeoPointResponseMessage":
returnee = new MultipleGeoPointResponseMessage(userLocations);
break;
case "RemoveGeoPointMessage":
returnee = new RemoveGeoPointMessage(userLocation);
break;
case "UserLocation":
if (userLocations != null)
{
userLocations.Add(new UserLocation(username, geoPoint, gender, bgColour));
}
else
{
userLocation = new UserLocation(username, geoPoint, gender, bgColour);
}
break;
case "GeoPoint":
geoPoint = new GeoPoint(latitude, longtitude);
break;
default:
break;
}
break;
case XmlNodeType.Text:
switch (element)
{
case "Username":
username = reader.Value;
break;
case "IsAccepted":
isAccepted = Boolean.Parse(reader.Value);
break;
case "Latitude":
latitude = Int32.Parse(reader.Value);
break;
case "Longtitude":
longtitude = Int32.Parse(reader.Value);
break;
case "Gender":
gender = int.Parse(reader.Value);
break;
case "BgColour":
bgColour = int.Parse(reader.Value);
break;
default:
break;
}
break;
default:
break;
}
}
}
catch
{
throw new XmlException("Unrecognized XML Format...");
}
reader.Close();
if (returnee != null)
{
return returnee;
}
else
{
throw new XmlException("Unrecognized XML Format...");
}
}
