public async Task StartAsync(CancellationToken cancellationToken)
{
await WrapStarter(() => _connection = _connectionFactory.Get <QueryNatsAdapter>(), cancellationToken);
var queue = _queueFactory.Get();
_subscription = _connection.SubscribeAsync(queue, CreateHandler());
}
public async Task <TResult> Ask(TCriterion criterion)
{
var connection = _connectionFactory.Get <QueryNatsAdapter>();
var replySubj = GetRandomString();
QueryNatsAdapter response;
try
{
var queryQueue = _queueFactory.Get();
var data = new QueryNatsAdapter(criterion, typeof(TResult))
{
QueryResult = replySubj
};
connection.Publish(queryQueue, data);
connection.Flush();
response = await GetResponse(connection, replySubj, out var subscription);
subscription.Dispose();
}
catch (NATSTimeoutException)
{
throw new InternalException("Nats connection timeout exceed");
}
catch (Exception ex)
{
throw new InternalException(ex.Message);
}
var resultType = _typeFactory.Get(response.QueryResultType);
if (resultType == typeof(TResult))
{
return(_serializer.DeserializeMsg <TResult>(response.QueryResult, resultType));
}
throw new InternalException(response.QueryResult);
}
