public QueueDetails GetQueueDetails()
{
var loggingStringBuilder = new StringBuilder();
var restItems = FindRelationAndFollow("http://api.sportingsolutions.com/rels/stream/amqp", "GetAmqpStream HTTP error", loggingStringBuilder);
if (restItems == null)
{
return(null);
}
var amqpLink = restItems.SelectMany(restItem => restItem.Links).First(restLink => restLink.Relation == "amqp");
var amqpUri = new Uri(amqpLink.Href);
var queueDetails = new QueueDetails {
Host = amqpUri.Host
};
var userInfo = amqpUri.UserInfo;
userInfo = HttpUtility.UrlDecode(userInfo);
if (!String.IsNullOrEmpty(userInfo))
{
var userPass = userInfo.Split(':');
if (userPass.Length > 2)
{
throw new ArgumentException(string.Format("Bad user info in AMQP URI: {0}", userInfo));
}
queueDetails.UserName = userPass[0];
if (userPass.Length == 2)
{
queueDetails.Password = userPass[1];
}
}
var path = amqpUri.AbsolutePath;
if (!String.IsNullOrEmpty(path))
{
queueDetails.Name = path.Substring(path.IndexOf('/', 1) + 1);
var virtualHost = path.Substring(1, path.IndexOf('/', 1) - 1);
queueDetails.VirtualHost = virtualHost;
_virtualHost = queueDetails.VirtualHost;
}
var port = amqpUri.Port;
if (port != -1)
{
queueDetails.Port = port;
}
return(queueDetails);
}
private void Connect(IConsumer consumer)
{
if (State != ConnectionState.CONNECTED)
{
// this prevents any other execution of EstablishConnection().
// EstablishConnection() wakes up any sleeping threads when it finishes
lock (_connectionLock)
{
while (State == ConnectionState.CONNECTING)
{
// wait until the connection is established
Monitor.Wait(_connectionLock);
}
if (State == ConnectionState.CONNECTED || _cancellationTokenSource.IsCancellationRequested)
{
return;
}
State = ConnectionState.CONNECTING;
}
// GetQueueDetails() returns the credentials for connecting to the AMQP server
// but it also asks the server to create an AMQP queue for the caller.
// As the time to establish a connection could take a while (just think about
// a not reliable network), the created AMQP queue could expire before we
// call BasicConsume() on it.
//
// To prevent this situation, we call GetQueueDetails() twice for the consumer
// who establish the connection, one here, and the second time on
// AddConsumeToQueue()
QueueDetails queue = null;
try
{
queue = consumer.GetQueueDetails();
if (queue == null || string.IsNullOrEmpty(queue.Name))
{
throw new Exception("queue's name is not valid for consumerId=" + consumer.Id);
}
}
catch (Exception e)
{
_logger.Error("Error acquiring queue details for consumerId=" + consumer.Id, e);
OnConnectionStatusChanged(ConnectionState.DISCONNECTED);
throw;
}
var factory = new ConnectionFactory {
RequestedHeartbeat = UDAPI.Configuration.AMQPMissedHeartbeat,
HostName = queue.Host,
Port = queue.Port,
UserName = queue.UserName,
Password = queue.Password,
VirtualHost = "/" + queue.VirtualHost // this is not used anymore, we keep it for retro-compatibility
};
EstablishConnection(factory);
}
}
public QueueDetails GetQueueDetails()
{
var loggingStringBuilder = new StringBuilder();
var restItems = FindRelationAndFollow("http://api.sportingsolutions.com/rels/stream/amqp", "GetAmqpStream HTTP error", loggingStringBuilder);
var amqpLink = restItems.SelectMany(restItem => restItem.Links).First(restLink => restLink.Relation == "amqp");
var amqpUri = new Uri(amqpLink.Href);
var queueDetails = new QueueDetails { Host = amqpUri.Host };
var userInfo = amqpUri.UserInfo;
userInfo = HttpUtility.UrlDecode(userInfo);
if (!String.IsNullOrEmpty(userInfo))
{
var userPass = userInfo.Split(':');
if (userPass.Length > 2)
{
throw new ArgumentException(string.Format("Bad user info in AMQP URI: {0}", userInfo));
}
queueDetails.UserName = userPass[0];
if (userPass.Length == 2)
{
queueDetails.Password = userPass[1];
}
}
var path = amqpUri.AbsolutePath;
if (!String.IsNullOrEmpty(path))
{
queueDetails.Name = path.Substring(path.IndexOf('/', 1) + 1);
var virtualHost = path.Substring(1, path.IndexOf('/', 1) - 1);
queueDetails.VirtualHost = virtualHost;
_virtualHost = queueDetails.VirtualHost;
}
var port = amqpUri.Port;
if (port != -1)
{
queueDetails.Port = port;
}
return queueDetails;
}
