public ServiceBusConnectionContext(ServiceBusScaleoutConfiguration configuration,
IList <string> topicNames,
TraceSource traceSource,
Action <int, IEnumerable <BrokeredMessage> > handler,
Action <int, Exception> errorHandler,
Action <int> openStream)
{
if (topicNames == null)
{
throw new ArgumentNullException("topicNames");
}
_configuration = configuration;
_subscriptions = new SubscriptionContext[topicNames.Count];
_topicClients = new TopicClient[topicNames.Count];
_trace = traceSource;
TopicNames = topicNames;
Handler = handler;
ErrorHandler = errorHandler;
OpenStream = openStream;
TopicClientsLock = new object();
SubscriptionsLock = new object();
}
public ServiceBusConnection(ServiceBusScaleoutConfiguration configuration, TraceSource traceSource)
{
_trace = traceSource;
_connectionString = configuration.BuildConnectionString();
try
{
_namespaceManager = NamespaceManager.CreateFromConnectionString(_connectionString);
_factory = MessagingFactory.CreateFromConnectionString(_connectionString);
if (configuration.RetryPolicy != null)
{
_factory.RetryPolicy = configuration.RetryPolicy;
}
else
{
_factory.RetryPolicy = RetryExponential.Default;
}
}
catch (ConfigurationErrorsException)
{
_trace.TraceError("The configured Service Bus connection string contains an invalid property. Check the exception details for more information.");
throw;
}
_backoffTime = configuration.BackoffTime;
_idleSubscriptionTimeout = configuration.IdleSubscriptionTimeout;
_configuration = configuration;
}
public ServiceBusMessageBus(IDependencyResolver resolver, ServiceBusScaleoutConfiguration configuration)
: base(resolver, configuration)
{
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
// Retrieve the trace manager
var traceManager = resolver.Resolve <ITraceManager>();
_trace = traceManager["SignalR." + typeof(ServiceBusMessageBus).Name];
_connection = new ServiceBusConnection(configuration, _trace);
_topics = Enumerable.Range(0, configuration.TopicCount)
.Select(topicIndex => SignalRTopicPrefix + "_" + configuration.TopicPrefix + "_" + topicIndex)
.ToArray();
_connectionContext = new ServiceBusConnectionContext(configuration, _topics, _trace, OnMessage, OnError, Open);
ThreadPool.QueueUserWorkItem(Subscribe);
}
/// <summary>
/// Use Windows Azure Service Bus as the messaging backplane for scaling out of ASP.NET SignalR applications in a web farm.
/// </summary>
/// <param name="resolver">The dependency resolver.</param>
/// <param name="configuration">The Service Bus scale-out configuration options.</param>
/// <returns>The dependency resolver</returns>
/// <remarks>Note: Only Windows Azure Service Bus is supported. Service Bus for Windows Server (on-premise) is not supported.</remarks>
public static IDependencyResolver UseServiceBus(this IDependencyResolver resolver, ServiceBusScaleoutConfiguration configuration)
{
var bus = new ServiceBusMessageBus(resolver, configuration);
resolver.Register(typeof(IMessageBus), () => bus);
return(resolver);
}
/// <summary>
/// Use Windows Azure Service Bus as the messaging backplane for scaling out of ASP.NET SignalR applications in a web farm.
/// </summary>
/// <param name="resolver">The dependency resolver.</param>
/// <param name="connectionString">The Service Bus connection string to use.</param>
/// <param name="topicPrefix">The topic prefix to use. Typically represents the app name. This must be consistent between all nodes in the web farm.</param>
/// <returns>The dependency resolver</returns>
/// <remarks>Note: Only Windows Azure Service Bus is supported. Service Bus for Windows Server (on-premise) is not supported.</remarks>
public static IDependencyResolver UseServiceBus(this IDependencyResolver resolver, string connectionString, string topicPrefix)
{
var config = new ServiceBusScaleoutConfiguration(connectionString, topicPrefix);
return(UseServiceBus(resolver, config));
}
