/// <summary> /// Invoked when an incoming request for Query operation comes in. /// </summary> public abstract void OnQuery(IClient client, QueryRequest packet);
/// <summary>
/// Occurs when a remote client attempts to query a target within the application.
/// </summary>
/// <param name="client">The remote client.</param>
/// <param name="packet">The packet received.</param>
private static void OnQuery(IClient client, QueryRequest packet)
{
try
{
// Get method, arguments and the callback
var method = packet.Method;
var arguments = packet.Arguments;
var callback = packet.Callback;
var target = packet.Target;
// Do not query private methods
if (method.IsPrivateName())
return;
// Retrieves the target from the object lookup cache
var scope = ScriptMap.Get<PageScope>(target);
if (scope == null || scope.Channel == null)
return;
try
{
// Make sure we have a thread static session set
Channel.Current = scope.Channel;
Channel.Current.Caller = client;
// Get the session and add a client to it, this
// doesn't do anything if the client already exists
// on this session.
var session = scope.Channel.AddClient(client);
// TODO: Handle arguments
var result = scope.CallMethod(method, arguments, Channel.Current);
// Return in any case (whether we have a result or not)
client.SendQueryInform(callback, result);
}
catch (Exception ex)
{
// Send the exception
Channel.Current.SendException(ex);
}
finally
{
// Reset the scope back to null
Channel.Reset();
}
}
catch (Exception ex)
{
// Log the exception
Service.Logger.Log(ex);
}
}