private void HandleMessageThread(MessageContext messageContext, TaskEntry taskEntry)
{
ASSERT( messageContext != null, "Missing parameter 'messageContext'" );
// ASSERT( taskEntry != null, "Missing parameter 'taskEntry'" ); => 'null' means "CallbackItem.CallbackThreaded == null"
var message = messageContext.Message;
var callbackItem = messageContext.CallbackItem;
LOG( "HandleMessageThread(" + taskEntry + "," + message + ") - Start" );
bool contextRestored = false;
try
{
if(! callbackItem.IsThreaded )
{
// Inline message handler => This thread is still the HTTP handler's thread => No need to restore thread's context
ASSERT( callbackItem.CallbackDirect != null, "If not 'IsThreaded' then 'callbackItem.CallbackDirect' is supposed to be set" );
ASSERT( callbackItem.CallbackThreaded == null, "If not 'IsThreaded' then 'callbackItem.CallbackThreaded' is supposed to be null" );
callbackItem.CallbackDirect( message );
}
else // Threaded message handler => Must restore some of the HTTP handler's thread context
{
ASSERT( callbackItem.CallbackDirect == null, "If 'IsThreaded' then 'callbackItem.CallbackDirect' is supposed to be null" );
ASSERT( callbackItem.CallbackThreaded != null, "If 'IsThreaded' then 'callbackItem.CallbackThreaded' is supposed to be set" );
// Restore message's context
messageContext.RestoreContext();
contextRestored = true;
callbackItem.CallbackThreaded( taskEntry, message );
}
LOG( "HandleMessageThread(" + taskEntry + "," + message + ") - Exit" );
}
catch( System.Reflection.TargetInvocationException ex )
{
LOG( "HandleMessageThread(" + taskEntry + "," + message + ") - TargetInvocationException" );
SendMessageToConnection( message.SenderConnectionID, Message.CreateExceptionMessage(exception:ex.InnerException, sourceMessage:message) );
}
catch( System.Exception ex )
{
LOG( "HandleMessageThread(" + taskEntry + "," + message + ") - Exception" );
SendMessageToConnection( message.SenderConnectionID, Message.CreateExceptionMessage(exception:ex, sourceMessage:message) );
}
finally
{
if( contextRestored && (ClearMessageContextObject != null) )
// Clear the restored message context
try { ClearMessageContextObject(); }
catch( System.Exception ex ) { FAIL( "'ClearMessageContextObject()' threw an exception (" + ex.GetType().FullName + "): " + ex.Message ); }
}
}