/// <summary>
/// Performs the actions needed to open an AMQP object, such
/// as a session or link for use.
/// </summary>
///
/// <param name="target">The target AMQP object to open.</param>
/// <param name="timeout">The timeout to apply when opening the link.</param>
protected virtual async Task OpenAmqpObjectAsync(
AmqpObject target,
TimeSpan timeout)
{
try
{
await target.OpenAsync(timeout).ConfigureAwait(false);
}
catch
{
switch (target)
{
case AmqpLink linkTarget:
linkTarget.Session?.SafeClose();
break;
case RequestResponseAmqpLink linkTarget:
linkTarget.Session?.SafeClose();
break;
default:
break;
}
target.SafeClose();
throw;
}
}
private static async Task OpenLinkAsync(AmqpObject link, TimeSpan timeout)
{
Logging.Enter(link, link.State, timeout, nameof(OpenLinkAsync));
try
{
var timeoutHelper = new TimeoutHelper(timeout);
try
{
await link.OpenAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
}
catch (Exception exception)
{
Logging.Error(link, exception, nameof(OpenLinkAsync));
if (exception.IsFatal())
{
throw;
}
link.SafeClose(exception);
throw;
}
}
finally
{
Logging.Exit(link, link.State, timeout, nameof(OpenLinkAsync));
}
}
protected override async Task OpenLinkAsync(AmqpObject link, IotHubConnectionString connectionString, string audience, TimeSpan timeout, CancellationToken token)
{
var timeoutHelper = new TimeoutHelper(timeout);
token.ThrowIfCancellationRequested();
try
{
// this is a device-scope connection string. We need to send a CBS token for this specific link before opening it.
var iotHubLinkTokenRefresher = new IotHubTokenRefresher(this.FaultTolerantSession.Value, connectionString, audience);
if (this.iotHubTokenRefreshers.TryAdd(link, iotHubLinkTokenRefresher))
{
link.SafeAddClosed((s, e) =>
{
if (this.iotHubTokenRefreshers.TryRemove(link, out iotHubLinkTokenRefresher))
{
iotHubLinkTokenRefresher.Cancel();
}
});
// Send Cbs token for new link first
// This will throw an exception if the device is not valid or if the token is not valid
await iotHubLinkTokenRefresher.SendCbsTokenAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
}
token.ThrowIfCancellationRequested();
// Open Amqp Link
await link.OpenAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
}
catch (Exception exception) when(!exception.IsFatal())
{
link.SafeClose(exception);
throw;
}
}
public async Task <AmqpObject> CreateAndOpenAmqpLinkAsync()
{
TimeoutHelper timeoutHelper = new TimeoutHelper(this.serviceBusConnection.OperationTimeout);
AmqpConnection connection = await this.serviceBusConnection.ConnectionManager.GetOrCreateAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
// Authenticate over CBS
AmqpCbsLink cbsLink = connection.Extensions.Find <AmqpCbsLink>();
Uri address = new Uri(this.serviceBusConnection.Endpoint, this.entityPath);
string audience = address.AbsoluteUri;
string resource = address.AbsoluteUri;
await cbsLink.SendTokenAsync(this.cbsTokenProvider, address, audience, resource, this.requiredClaims, timeoutHelper.RemainingTime()).ConfigureAwait(false);
AmqpSession session = null;
try
{
// Create our Session
AmqpSessionSettings sessionSettings = new AmqpSessionSettings {
Properties = new Fields()
};
session = connection.CreateSession(sessionSettings);
await session.OpenAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
// Create our Link
AmqpObject link = this.OnCreateAmqpLink(connection, this.amqpLinkSettings, session);
await link.OpenAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
return(link);
}
catch (Exception)
{
session?.Abort();
throw;
}
}
protected override async Task OpenLinkAsync(AmqpObject link, IotHubConnectionString doNotUse, string doNotUse2, TimeSpan timeout, CancellationToken token)
{
if (Logging.IsEnabled)
{
Logging.Enter(this, timeout, token, $"{nameof(IotHubSingleTokenConnection)}.{nameof(OpenLinkAsync)}");
}
token.ThrowIfCancellationRequested();
try
{
await link.OpenAsync(timeout).ConfigureAwait(false);
}
catch (Exception exception)
{
if (exception.IsFatal())
{
throw;
}
link.SafeClose(exception);
throw;
}
finally
{
if (Logging.IsEnabled)
{
Logging.Exit(this, timeout, token, $"{nameof(IotHubSingleTokenConnection)}.{nameof(OpenLinkAsync)}");
}
}
}
public async Task <Tuple <AmqpObject, DateTime> > CreateAndOpenAmqpLinkAsync()
{
var timeoutHelper = new TimeoutHelper(this.serviceBusConnection.OperationTimeout);
MessagingEventSource.Log.AmqpGetOrCreateConnectionStart();
var amqpConnection = await this.serviceBusConnection.ConnectionManager.GetOrCreateAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
MessagingEventSource.Log.AmqpGetOrCreateConnectionStop(this.entityPath, amqpConnection.ToString(), amqpConnection.State.ToString());
// Authenticate over CBS
var cbsLink = amqpConnection.Extensions.Find <AmqpCbsLink>();
var resource = this.endpointAddress.AbsoluteUri;
MessagingEventSource.Log.AmqpSendAuthenticationTokenStart(this.endpointAddress, resource, resource, this.requiredClaims);
var cbsTokenExpiresAtUtc = await cbsLink.SendTokenAsync(this.cbsTokenProvider, this.endpointAddress, resource, resource, this.requiredClaims, timeoutHelper.RemainingTime()).ConfigureAwait(false);
MessagingEventSource.Log.AmqpSendAuthenticationTokenStop();
AmqpSession session = null;
try
{
// Create Session
var amqpSessionSettings = new AmqpSessionSettings {
Properties = new Fields()
};
session = amqpConnection.CreateSession(amqpSessionSettings);
await session.OpenAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
}
catch (Exception exception)
{
MessagingEventSource.Log.AmqpSessionCreationException(this.entityPath, amqpConnection, exception);
session?.Abort();
throw AmqpExceptionHelper.GetClientException(exception, null, session.GetInnerException());
}
AmqpObject link = null;
try
{
// Create Link
link = this.OnCreateAmqpLink(amqpConnection, this.amqpLinkSettings, session);
await link.OpenAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
return(new Tuple <AmqpObject, DateTime>(link, cbsTokenExpiresAtUtc));
}
catch (Exception exception)
{
MessagingEventSource.Log.AmqpLinkCreationException(
this.entityPath,
session,
amqpConnection,
exception);
session.SafeClose(exception);
throw AmqpExceptionHelper.GetClientException(exception, null, link?.GetInnerException(), session.IsClosing());
}
}
protected override async Task OpenLinkAsync(AmqpObject link, IotHubConnectionString doNotUse, string doNotUse2, TimeSpan timeout)
{
try
{
await link.OpenAsync(timeout);
}
catch (Exception exception)
{
if (exception.IsFatal())
{
throw;
}
link.SafeClose(exception);
throw;
}
}
protected override async Task OpenLinkAsync(AmqpObject link, IotHubConnectionString doNotUse, string doNotUse2, TimeSpan timeout)
{
try
{
await link.OpenAsync(timeout);
}
catch (Exception exception)
{
if (exception.IsFatal())
{
throw;
}
link.SafeClose(exception);
throw;
}
}
protected override async Task OpenLinkAsync(AmqpObject link, IotHubConnectionString doNotUse, string doNotUse2, TimeSpan timeout, CancellationToken token)
{
token.ThrowIfCancellationRequested();
try
{
await link.OpenAsync(timeout).ConfigureAwait(false);
}
catch (Exception exception)
{
if (exception.IsFatal())
{
throw;
}
link.SafeClose(exception);
throw;
}
}
static async Task OpenLinkAsync(AmqpObject link, TimeSpan timeout)
{
var timeoutHelper = new TimeoutHelper(timeout);
try
{
await link.OpenAsync(timeoutHelper.RemainingTime());
}
catch (Exception exception)
{
if (exception.IsFatal())
{
throw;
}
link.SafeClose(exception);
throw;
}
}
protected override async Task OpenLinkAsync(AmqpObject link, IotHubConnectionString connectionString, string audience, TimeSpan timeout)
{
var timeoutHelper = new TimeoutHelper(timeout);
try
{
// this is a device-scope connection string. We need to send a CBS token for this specific link before opening it.
var iotHubLinkTokenRefresher = new IotHubTokenRefresher(
this.FaultTolerantSession.Value,
connectionString,
audience
);
if (this.iotHubTokenRefreshers.TryAdd(link, iotHubLinkTokenRefresher))
{
link.SafeAddClosed((s, e) =>
{
if (this.iotHubTokenRefreshers.TryRemove(link, out iotHubLinkTokenRefresher))
{
iotHubLinkTokenRefresher.Cancel();
}
});
// Send Cbs token for new link first
await iotHubLinkTokenRefresher.SendCbsTokenAsync(timeoutHelper.RemainingTime());
}
// Open Amqp Link
await link.OpenAsync(timeoutHelper.RemainingTime());
}
catch (Exception exception)
{
if (exception.IsFatal())
{
throw;
}
link.SafeClose(exception);
throw;
}
}
/// <summary>
/// Performs the actions needed to open a generic AMQP object, such
/// as a session or link for use.
/// </summary>
///
/// <param name="target">The target AMQP object to open.</param>
/// <param name="timeout">The timeout to apply when opening the link.</param>
///
protected virtual Task OpenAmqpObjectAsync(
AmqpObject target,
TimeSpan timeout) =>
target.OpenAsync(timeout);
static async Task OpenLinkAsync(AmqpObject link, TimeSpan timeout)
{
var timeoutHelper = new TimeoutHelper(timeout);
try
{
await link.OpenAsync(timeoutHelper.RemainingTime());
}
catch (Exception exception)
{
if (exception.IsFatal())
{
throw;
}
link.SafeClose(exception);
throw;
}
}
public async Task <Tuple <AmqpObject, DateTime> > CreateAndOpenAmqpLinkAsync()
{
var timeoutHelper = new TimeoutHelper(this.serviceBusConnection.OperationTimeout, true);
MessagingEventSource.Log.AmqpGetOrCreateConnectionStart();
var amqpConnection = await this.serviceBusConnection.ConnectionManager.GetOrCreateAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
MessagingEventSource.Log.AmqpGetOrCreateConnectionStop(this.entityPath, amqpConnection.ToString(), amqpConnection.State.ToString());
// Authenticate over CBS
var cbsLink = amqpConnection.Extensions.Find <AmqpCbsLink>();
DateTime cbsTokenExpiresAtUtc = DateTime.MaxValue;
foreach (var resource in this.audience)
{
MessagingEventSource.Log.AmqpSendAuthenticationTokenStart(this.endpointAddress, resource, resource, this.requiredClaims);
cbsTokenExpiresAtUtc = TimeoutHelper.Min(
cbsTokenExpiresAtUtc,
await cbsLink.SendTokenAsync(this.cbsTokenProvider, this.endpointAddress, resource, resource, this.requiredClaims, timeoutHelper.RemainingTime()).ConfigureAwait(false));
MessagingEventSource.Log.AmqpSendAuthenticationTokenStop();
}
AmqpSession session = null;
try
{
// Create Session
var amqpSessionSettings = new AmqpSessionSettings {
Properties = new Fields()
};
if (this.amqpLinkSettings.IsReceiver())
{
// This is the maximum number of unsettled transfers across all receive links on this session.
// This will allow the session to accept unlimited number of transfers, even if the recevier(s)
// are not settling any of the deliveries.
amqpSessionSettings.IncomingWindow = uint.MaxValue;
}
session = amqpConnection.CreateSession(amqpSessionSettings);
await session.OpenAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
}
catch (Exception exception)
{
MessagingEventSource.Log.AmqpSessionCreationException(this.entityPath, amqpConnection, exception);
session?.Abort();
throw AmqpExceptionHelper.GetClientException(exception, null, session.GetInnerException(), amqpConnection.IsClosing());
}
AmqpObject link = null;
try
{
// Create Link
link = this.OnCreateAmqpLink(amqpConnection, this.amqpLinkSettings, session);
await link.OpenAsync(timeoutHelper.RemainingTime()).ConfigureAwait(false);
return(new Tuple <AmqpObject, DateTime>(link, cbsTokenExpiresAtUtc));
}
catch (Exception exception)
{
MessagingEventSource.Log.AmqpLinkCreationException(
this.entityPath,
session,
amqpConnection,
exception);
session.SafeClose(exception);
throw AmqpExceptionHelper.GetClientException(exception, null, link?.GetInnerException(), amqpConnection.IsClosing());
}
}
protected override async Task OpenLinkAsync(AmqpObject link, IotHubConnectionString connectionString, string audience, TimeSpan timeout)
{
var timeoutHelper = new TimeoutHelper(timeout);
try
{
// this is a device-scope connection string. We need to send a CBS token for this specific link before opening it.
var iotHubLinkTokenRefresher = new IotHubTokenRefresher(
this.FaultTolerantSession.Value,
connectionString,
audience
);
if (this.iotHubTokenRefreshers.TryAdd(link, iotHubLinkTokenRefresher))
{
link.SafeAddClosed((s, e) =>
{
if (this.iotHubTokenRefreshers.TryRemove(link, out iotHubLinkTokenRefresher))
{
iotHubLinkTokenRefresher.Cancel();
}
});
// Send Cbs token for new link first
await iotHubLinkTokenRefresher.SendCbsTokenAsync(timeoutHelper.RemainingTime());
}
// Open Amqp Link
await link.OpenAsync(timeoutHelper.RemainingTime());
}
catch (Exception exception)
{
if (exception.IsFatal())
{
throw;
}
link.SafeClose(exception);
throw;
}
}