/// <summary>
/// Creates the track one Event Hub client instance for inner use, handling any necessary translation between track two
/// and track one concepts/types.
/// </summary>
///
/// <param name="host">The fully qualified host name for the Event Hubs namespace. This is likely to be similar to <c>{yournamespace}.servicebus.windows.net</c>.</param>
/// <param name="eventHubPath">The path of the specific Event Hub to connect the client to.</param>
/// <param name="credential">The Azure managed identity credential to use for authorization. Access controls may be specified by the Event Hubs namespace or the requeseted Event Hub, depending on Azure configuration.</param>
/// <param name="clientOptions">A set of options to apply when configuring the client.</param>
///
/// <returns>The <see cref="TrackOne.EventHubClient" /> to use.</returns>
///
internal static TrackOne.EventHubClient CreateClient(string host,
string eventHubPath,
TokenCredential credential,
EventHubClientOptions clientOptions)
{
// Translate the connection type into the corresponding Track One transport type.
TrackOne.TransportType transportType;
switch (clientOptions.TransportType)
{
case TransportType.AmqpTcp:
transportType = TrackOne.TransportType.Amqp;
break;
case TransportType.AmqpWebSockets:
transportType = TrackOne.TransportType.AmqpWebSockets;
break;
default:
throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Resources.InvalidTransportType, clientOptions.TransportType.ToString(), nameof(clientOptions.TransportType)));
}
// Translate the provided credential into a Track One token provider.
TokenProvider tokenProvider;
switch (credential)
{
case SharedAccessSignatureCredential sasCredential:
tokenProvider = new TrackOneSharedAccessTokenProvider(sasCredential.SharedAccessSignature);
break;
case EventHubTokenCredential eventHubCredential:
tokenProvider = new TrackOneGenericTokenProvider(eventHubCredential);
break;
default:
throw new ArgumentException(Resources.UnsupportedCredential, nameof(credential));
}
// Create the endpoint for the client.
var endpointBuilder = new UriBuilder
{
Scheme = clientOptions.TransportType.GetUriScheme(),
Host = host,
Path = eventHubPath,
Port = -1,
};
// Build and configure the client.
var client = TrackOne.EventHubClient.Create(endpointBuilder.Uri, eventHubPath, tokenProvider, clientOptions.DefaultTimeout, transportType);
client.WebProxy = clientOptions.Proxy;
return(client);
}
/// <summary>
/// Creates the track one Event Hub client instance for inner use, handling any necessary translation between track two
/// and track one concepts/types.
/// </summary>
///
/// <param name="host">The fully qualified host name for the Event Hubs namespace. This is likely to be similar to <c>{yournamespace}.servicebus.windows.net</c>.</param>
/// <param name="eventHubName">The name of the specific Event Hub to connect the client to.</param>
/// <param name="credential">The Azure managed identity credential to use for authorization. Access controls may be specified by the Event Hubs namespace or the requested Event Hub, depending on Azure configuration.</param>
/// <param name="clientOptions">A set of options to apply when configuring the client.</param>
/// <param name="defaultRetryPolicyFactory">A function that retrieves a default retry policy to use if no retry options were specified in the <paramref name="clientOptions" />.</param>
///
/// <returns>The <see cref="TrackOne.EventHubClient" /> to use.</returns>
///
public static TrackOne.EventHubClient CreateClient(string host,
string eventHubName,
TokenCredential credential,
EventHubClientOptions clientOptions,
Func <EventHubRetryPolicy> defaultRetryPolicyFactory)
{
// Translate the connection type into the corresponding Track One transport type.
TrackOne.TransportType transportType;
switch (clientOptions.TransportType)
{
case TransportType.AmqpTcp:
transportType = TrackOne.TransportType.Amqp;
break;
case TransportType.AmqpWebSockets:
transportType = TrackOne.TransportType.AmqpWebSockets;
break;
default:
throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, Resources.InvalidTransportType, clientOptions.TransportType.ToString(), nameof(clientOptions.TransportType)));
}
// Translate the provided credential into a Track One token provider.
TokenProvider tokenProvider;
switch (credential)
{
case SharedAccessSignatureCredential sasCredential:
tokenProvider = new TrackOneSharedAccessTokenProvider(sasCredential.SharedAccessSignature);
break;
case EventHubTokenCredential eventHubCredential:
tokenProvider = new TrackOneGenericTokenProvider(eventHubCredential);
break;
default:
throw new ArgumentException(Resources.UnsupportedCredential, nameof(credential));
}
// Create the endpoint for the client.
var endpointBuilder = new UriBuilder
{
Scheme = clientOptions.TransportType.GetUriScheme(),
Host = host,
Path = eventHubName,
Port = -1,
};
// Build and configure the client.
var retryPolicy = (clientOptions.RetryOptions != null)
? new BasicRetryPolicy(clientOptions.RetryOptions)
: defaultRetryPolicyFactory();
var operationTimeout = retryPolicy.CalculateTryTimeout(0);
var client = TrackOne.EventHubClient.Create(endpointBuilder.Uri, eventHubName, tokenProvider, operationTimeout, transportType);
client.WebProxy = clientOptions.Proxy;
client.RetryPolicy = new TrackOneRetryPolicy(retryPolicy);
client.ConnectionStringBuilder.OperationTimeout = operationTimeout;
return(client);
}
