public override bool Subscribe(AdapterReaderQos qos, QueryParameters queryParameters,
AdapterDataCallback <TDataType> clientCallback)
{
if (queryParameters == null)
{
throw new ArgumentNullException("queryParameters");
}
try
{
Callback callback = null;
if (clientCallback != null)
{
callback = new Callback(clientCallback);
}
var subcriber = new Subscriber <TDataType>(topic, queryParameters.Partition, qos,
callback == null ? null : callback.Listener, 10);
lock (gate)
{
subscribers.Add(new Subscription(subcriber, callback));
}
return(true);
}
catch (Exception exception)
{
Trace.TraceError("Failed to subscribe to topic: {0} with params: {1} and qos: {2}, error: {3}", topic,
queryParameters, qos, exception);
}
return(false);
}
public DataReaderListener(AdapterDataCallback <T> callback, bool snapshot)
{
if (callback == null)
{
throw new ArgumentNullException("callback");
}
this.callback = callback;
this.snapshot = snapshot;
}
public Callback(AdapterDataCallback <TDataType> clientCallback)
{
if (isDisposed)
{
return;
}
if (clientCallback == null)
{
throw new ArgumentNullException("clientCallback");
}
this.clientCallback = clientCallback;
listener = new DataReaderListener <TDataType>(this, false);
}
public abstract bool Subscribe(AdapterReaderQos qos, QueryParameters queryParameters,
AdapterDataCallback <TDataType> clientCallback);