public void ExecuteAsync(Action <ITikReSentence> oneResponseCallback,
Action <ITikTrapSentence> errorCallback = null,
Action onDoneCallback = null)
{
EnsureConnectionSet();
EnsureNotRunning();
System.Diagnostics.Debug.Assert(_asyncLoadingThread == null);
int tag = TagSequence.Next();
_isRuning = true;
_asynchronouslyRunningTag = tag;
try
{
string[] commandRows = ConstructCommandText(TikCommandParameterFormat.NameValue);
_asyncLoadingThread = _connection.CallCommandAsync(commandRows, tag.ToString(),
response =>
{
ApiReSentence reResponse = response as ApiReSentence;
if (reResponse != null)
{
if (oneResponseCallback != null)
{
oneResponseCallback(reResponse);
}
}
else
{
ApiTrapSentence trapResponse = response as ApiTrapSentence;
if (trapResponse != null)
{
if (trapResponse.CategoryCode == "2" && trapResponse.Message == "interrupted")
{
//correct state - async operation has been Cancelled.
}
else
{
//incorrect - any error occurs
if (errorCallback != null)
{
errorCallback(trapResponse);
}
}
}
else if (response is ApiDoneSentence || response is ApiFatalSentence)
{
//REMARKS: we are expecting !trap + !done sentences when any error occurs
_isRuning = false;
_asynchronouslyRunningTag = -1;
_asyncLoadingThread = null;
if (response is ApiDoneSentence && onDoneCallback != null)
{
onDoneCallback();
}
}
}
});
}
catch
{
_isRuning = false;
_asynchronouslyRunningTag = -1;
throw;
}
finally
{
//still running
}
}