internal async Task Start()
{
Address address = UriUtil.ToAddress(remoteUri, Info.username, Info.password);
underlyingConnection = await transport.CreateAsync(address, CreateOpenFrame(Info), OnOpened);
underlyingConnection.AddClosedCallback(Provider.OnInternalClosed);
// Create a Session for this connection that is used for Temporary Destinations
// and perhaps later on management and advisory monitoring.
// TODO: change the way how connection session id is obtained
SessionInfo sessionInfo = new SessionInfo(Info.Id);
sessionInfo.AcknowledgementMode = AcknowledgementMode.AutoAcknowledge;
connectionSession = new AmqpConnectionSession(this, sessionInfo);
await connectionSession.Start();
}
internal async Task Start()
{
Address address = UriUtil.ToAddress(remoteUri, Info.UserName, Info.Password);
this.tsc = new TaskCompletionSource <bool>(TaskCreationOptions.RunContinuationsAsynchronously);
underlyingConnection = await transport.CreateAsync(address, new AmqpHandler(this)).ConfigureAwait(false);
underlyingConnection.AddClosedCallback(OnClosed);
// Wait for connection to be opened
await this.tsc.Task.ConfigureAwait(false);
// Create a Session for this connection that is used for Temporary Destinations
// and perhaps later on management and advisory monitoring.
NmsSessionInfo sessionInfo = new NmsSessionInfo(Info, -1);
sessionInfo.AcknowledgementMode = AcknowledgementMode.AutoAcknowledge;
connectionSession = new AmqpConnectionSession(this, sessionInfo);
await connectionSession.Start().ConfigureAwait(false);
}
internal void Connect()
{
if (this.state.CompareAndSet(ConnectionState.INITIAL, ConnectionState.CONNECTING))
{
Address addr = UriUtil.ToAddress(connInfo.remoteHost, connInfo.username, connInfo.password ?? string.Empty);
Tracer.InfoFormat("Creating Address: {0}", addr.Host);
if (this.clientIdCanSet.CompareAndSet(true, false))
{
if (this.ClientId == null)
{
connInfo.ResourceId = this.clientIdGenerator.GenerateId();
}
else
{
connInfo.ResourceId = new Id(ClientId);
}
Tracer.InfoFormat("Staring Connection with Client Id : {0}", this.ClientId);
}
Open openFrame = CreateOpenFrame(this.connInfo);
Task <Amqp.Connection> fconn = this.implCreate(addr, openFrame, this.OpenResponse);
// wait until the Open request is sent
this.impl = TaskUtil.Wait(fconn, connInfo.connectTimeout);
if (fconn.Exception != null)
{
// exceptions thrown from TaskUtil are typically System.AggregateException and are usually transport exceptions for secure transport.
// extract the innerException of interest and wrap it as an NMS exception
if (fconn.Exception is AggregateException)
{
throw ExceptionSupport.Wrap(fconn.Exception.InnerException,
"Failed to connect host {0}. Cause: {1}", openFrame.HostName, fconn.Exception.InnerException?.Message ?? fconn.Exception.Message);
}
else
{
throw ExceptionSupport.Wrap(fconn.Exception,
"Failed to connect host {0}. Cause: {1}", openFrame.HostName, fconn.Exception?.Message);
}
}
this.impl.Closed += OnInternalClosed;
this.impl.AddClosedCallback(OnInternalClosed);
this.latch = new CountDownLatch(1);
ConnectionState finishedState = ConnectionState.UNKNOWN;
// Wait for Open response
try
{
bool received = this.latch.await((this.Info.requestTimeout == 0) ? Timeout.InfiniteTimeSpan : this.RequestTimeout);
if (received && this.impl.Error == null && fconn.Exception == null)
{
Tracer.InfoFormat("Connection {0} has connected.", this.impl.ToString());
finishedState = ConnectionState.CONNECTED;
// register connection factory once client Id accepted.
MessageFactory <ConnectionInfo> .Register(this);
}
else
{
if (!received)
{
// Timeout occured waiting on response
Tracer.InfoFormat("Connection Response Timeout. Failed to receive response from {0} in {1}ms", addr.Host, this.Info.requestTimeout);
}
finishedState = ConnectionState.INITIAL;
if (fconn.Exception == null)
{
if (!received)
{
throw ExceptionSupport.GetTimeoutException(this.impl, "Connection {0} has failed to connect in {1}ms.", ClientId, connInfo.closeTimeout);
}
Tracer.ErrorFormat("Connection {0} has Failed to connect. Message: {1}", ClientId, (this.impl.Error == null ? "Unknown" : this.impl.Error.ToString()));
throw ExceptionSupport.GetException(this.impl, "Connection {0} has failed to connect.", ClientId);
}
else
{
throw ExceptionSupport.Wrap(fconn.Exception, "Connection {0} failed to connect.", ClientId);
}
}
}
finally
{
this.latch = null;
this.state.GetAndSet(finishedState);
if (finishedState != ConnectionState.CONNECTED)
{
this.impl.Close(TimeSpan.FromMilliseconds(connInfo.closeTimeout), null);
}
}
}
}
