/// <summary>
/// Attempts to refresh the stored <see cref="IServiceBusNamespace"/> fluent construct.
/// Will do a full rebuild if any type of failure occurs during the refresh.
/// </summary>
/// <returns>The refreshed <see cref="IServiceBusNamespace"/>.</returns>
internal async Task <IServiceBusNamespace> GetRefreshedServiceBusNamespace()
{
try
{
if (AzureServiceBusNamespace != null)
{
return(await AzureServiceBusNamespace.RefreshAsync().ConfigureAwait(false));
}
}
catch { /* soak */ }
var token = await new AzureServiceTokenProvider().GetAccessTokenAsync("https://management.core.windows.net/", string.Empty).ConfigureAwait(false);
var tokenCredentials = new TokenCredentials(token);
var client = RestClient.Configure()
.WithEnvironment(AzureEnvironment.AzureGlobalCloud)
.WithLogLevel(HttpLoggingDelegatingHandler.Level.Basic)
.WithCredentials(new AzureCredentials(tokenCredentials, tokenCredentials, string.Empty, AzureEnvironment.AzureGlobalCloud))
.Build();
AzureServiceBusNamespace = (await Azure.Authenticate(client, string.Empty)
.WithSubscription(SubscriptionId)
.ServiceBusNamespaces.ListAsync()
.ConfigureAwait(false))
.SingleOrDefault(n => n.Name == NamespaceName);
if (AzureServiceBusNamespace == null)
{
throw new InvalidOperationException($"Couldn't find the service bus namespace {NamespaceName} in the subscription with ID {SubscriptionId}");
}
return(AzureServiceBusNamespace);
}
/// <summary>
/// Creates a specific topic if it doesn't exist in the target namespace.
/// </summary>
/// <param name="sbNamespace">The <see cref="IServiceBusNamespace"/> where we are creating the topic in.</param>
/// <param name="name">The name of the topic that we are looking for.</param>
/// <returns>The <see cref="ITopic"/> entity object that references the Azure topic.</returns>
public static async Task <ITopic> CreateTopicIfNotExists(this IServiceBusNamespace sbNamespace, string name)
{
await sbNamespace.RefreshAsync();
var topic = (await sbNamespace.Topics.ListAsync()).SingleOrDefault(t => t.Name == name.ToLowerInvariant());
if (topic != null)
{
return(topic);
}
await sbNamespace.Topics
.Define(name.ToLowerInvariant())
.WithDuplicateMessageDetection(TimeSpan.FromMinutes(10))
.CreateAsync();
await sbNamespace.RefreshAsync();
return((await sbNamespace.Topics.ListAsync()).Single(t => t.Name == name.ToLowerInvariant()));
}
