public async Task <SystemRegistration> QueryAsync(string name, VectorTimeStamp vts, string nsEndpoint = null)
{
nsEndpoint = nsEndpoint ?? NsEndpoint;
if (string.IsNullOrWhiteSpace(nsEndpoint))
{
return(null);
}
RegClient.Connect(nsEndpoint, ZeroMQ.ZSocketType.REQ);
Logger?.WriteLine($"Connected to NameServer at {nsEndpoint}");
var packet = new Packet <NsQuery> {
Payload = new NsQuery {
Name = name
}, VectorTimeStamp = vts
};
var json = JsonConvert.SerializeObject(packet);
SystemRegistration result = null;
await RegClient.SendAsync($"QRY: {json}", (ZFrame frame) =>
{
if (frame == null)
{
return;
}
var responseJson = frame.ToString();
var responsePacket = JsonConvert.DeserializeObject <Packet <SystemRegistration> >(responseJson);
result = responsePacket.Payload;
});
Logger?.WriteLine($"Queried for {SystemRegistration.Name}, Endpoint: {SystemRegistration.EndPoint}");
await Awaiter.AwaitTrueAsync(() => { return(result != null); }, 5000);
return(result);
}
public RegistrationClient(string nsEndpoint, SystemRegistration systemRegistration, bool retryOnFailure, ILogger logger)
{
Logger = logger;
NsEndpoint = nsEndpoint;
SystemRegistration = systemRegistration;
RegClient = new SendClient(true, retryOnFailure);
}