private async Task ExecuteConnectModules(ITcpChannel channel, ClientContext context)
{
var result = ModuleResult.Continue;
for (var i = 0; i < _modules.Length; i++)
{
var connectMod = _modules[i] as IConnectionEvents;
if (connectMod == null)
continue;
try
{
result = await connectMod.OnClientConnected(context);
}
catch (Exception exception)
{
context.Error = exception;
result = ModuleResult.SendResponse;
}
if (result != ModuleResult.Continue)
break;
}
switch (result)
{
case ModuleResult.Disconnect:
channel.Close();
break;
case ModuleResult.SendResponse:
channel.Send(context.ResponseMessage);
break;
}
}
private async Task EndRequestAsync(ClientContext context)
{
for (var i = 0; i < _modules.Length; i++)
{
await _modules[i].EndRequest(context);
}
}
private void OnClientMessage(ITcpChannel channel, object message)
{
var context = new ClientContext(channel, message);
ExecuteModules(channel, context).Wait();
}
private void OnClientDisconnect(object sender, ClientDisconnectedEventArgs e)
{
var context = new ClientContext(e.Channel, null);
ExecuteDisconnectModules(context).Wait();
}
private async Task ExecuteModules(ITcpChannel channel, ClientContext context)
{
var result = ModuleResult.Continue;
for (var i = 0; i < _modules.Length; i++)
{
try
{
await _modules[i].BeginRequestAsync(context);
}
catch (Exception exception)
{
context.Error = exception;
result = ModuleResult.SendResponse;
}
}
if (result == ModuleResult.Continue)
{
for (var i = 0; i < _modules.Length; i++)
{
try
{
result = await _modules[i].ProcessAsync(context);
}
catch (Exception exception)
{
context.Error = exception;
result = ModuleResult.SendResponse;
}
if (result != ModuleResult.Continue)
break;
}
}
try
{
await EndRequestAsync(context);
}
catch (Exception exception)
{
if (context.ResponseMessage == null)
context.ResponseMessage = exception;
result = ModuleResult.Disconnect;
}
if (context.ResponseMessage != null)
channel.Send(context.ResponseMessage);
if (result == ModuleResult.Disconnect)
{
channel.Close();
}
}
private async Task ExecuteDisconnectModules(ITcpChannel channel, ClientContext context)
{
for (var i = 0; i < _modules.Length; i++)
{
var connectMod = _modules[i] as IConnectionEvents;
if (connectMod == null)
continue;
try
{
await connectMod.OnClientDisconnect(context);
}
catch (Exception exception)
{
//TODO: Alert user of failure
}
}
}