private static async Task MainAsync()
{
Console.WriteLine("Registering EventProcessor...");
var eventProcessorHost = new EventProcessorHost(Constants.GstnReqEventHub,
PartitionReceiver.DefaultConsumerGroupName,
Constants.GstnReqHubConnectionRead,
Constants.BlobStorageConnection,
"gstn-req-event-hub-container");
//var eventProcessorHost = new EventProcessorHost(ConfigurationManager.AppSettings["GstnReqEventHub"].ToString(),
// PartitionReceiver.DefaultConsumerGroupName,
// ConfigurationManager.AppSettings["GstnReqHubConnectionRead"].ToString(),
// ConfigurationManager.AppSettings["BlobStorageConnection"].ToString(),
// ConfigurationManager.AppSettings["BlobContainer"].ToString());
// registration fails and retry
var options = new Microsoft.Azure.EventHubs.Processor.EventProcessorOptions()
{
MaxBatchSize = 10,
ReceiveTimeout = TimeSpan.FromSeconds(5),
//InitialOffsetProvider = (partitionId) => "4312342208",
//InitialOffsetProvider = (partitionId) => 98585,
};
await eventProcessorHost.RegisterEventProcessorAsync <EventHubProcessor>(options);
Console.WriteLine("Receiving. Press ENTER to stop worker.");
Console.ReadLine();
// Disposes of the Event Processor Host
//On Shutdown unregister the application from event Hub
// Webhook call to shutdown
// async health monitoring and log
//
await eventProcessorHost.UnregisterEventProcessorAsync();
}
public MyThread()
{
this.options = new Microsoft.Azure.EventHubs.Processor.EventProcessorOptions()
{
MaxBatchSize = 10,
ReceiveTimeout = TimeSpan.FromSeconds(5),
};
}
/// <summary>
/// This registers <see cref="IEventProcessorFactory"/> implementation with the host which is used to create an instance of
/// <see cref="IEventProcessor"/> when it takes ownership of a partition. This also starts the host and causes it to start participating
/// in the partition distribution process.
/// </summary>
/// <param name="factory">Instance of <see cref="IEventProcessorFactory"/> implementation.</param>
/// <param name="processorOptions"><see cref="EventProcessorOptions"/> to control various aspects of message pump created when ownership
/// is acquired for a particular partition of EventHub.</param>
/// <returns>A task to indicate EventProcessorHost instance is started.</returns>
public async Task RegisterEventProcessorFactoryAsync(IEventProcessorFactory factory, EventProcessorOptions processorOptions)
{
if (factory == null || processorOptions == null)
{
throw new ArgumentNullException(factory == null ? nameof(factory) : nameof(processorOptions));
}
ProcessorEventSource.Log.EventProcessorHostOpenStart(this.Id, factory.GetType().ToString());
try
{
// Override operation timeout by receive timeout?
if (processorOptions.ReceiveTimeout > TimeSpan.MinValue)
{
var cbs = new EventHubsConnectionStringBuilder(this.EventHubConnectionString)
{
OperationTimeout = processorOptions.ReceiveTimeout
};
this.EventHubConnectionString = cbs.ToString();
}
if (this.initializeLeaseManager)
{
((AzureStorageCheckpointLeaseManager)this.LeaseManager).Initialize(this);
}
this.ProcessorFactory = factory;
this.EventProcessorOptions = processorOptions;
await this.PartitionManager.StartAsync().ConfigureAwait(false);
}
catch (Exception e)
{
ProcessorEventSource.Log.EventProcessorHostOpenError(this.Id, e.ToString());
throw;
}
finally
{
ProcessorEventSource.Log.EventProcessorHostOpenStop(this.Id);
}
}
/// <summary>
/// This registers <see cref="IEventProcessor"/> implementation with the host using <see cref="DefaultEventProcessorFactory{T}"/>.
/// This also starts the host and causes it to start participating in the partition distribution process.
/// </summary>
/// <typeparam name="T">Implementation of your application specific <see cref="IEventProcessor"/>.</typeparam>
/// <param name="processorOptions"><see cref="EventProcessorOptions"/> to control various aspects of message pump created when ownership
/// is acquired for a particular partition of EventHub.</param>
/// <returns>A task to indicate EventProcessorHost instance is started.</returns>
public Task RegisterEventProcessorAsync <T>(EventProcessorOptions processorOptions) where T : IEventProcessor, new()
{
IEventProcessorFactory f = new DefaultEventProcessorFactory <T>();
return(RegisterEventProcessorFactoryAsync(f, processorOptions));
}
/// <summary>
/// This registers <see cref="IEventProcessorFactory"/> implementation with the host which is used to create an instance of
/// <see cref="IEventProcessor"/> when it takes ownership of a partition. This also starts the host and causes it to start participating
/// in the partition distribution process.
/// </summary>
/// <param name="factory">Instance of <see cref="IEventProcessorFactory"/> implementation.</param>
/// <param name="processorOptions"><see cref="EventProcessorOptions"/> to control various aspects of message pump created when ownership
/// is acquired for a particular partition of EventHub.</param>
/// <returns>A task to indicate EventProcessorHost instance is started.</returns>
public async Task RegisterEventProcessorFactoryAsync(IEventProcessorFactory factory, EventProcessorOptions processorOptions)
{
Guard.ArgumentNotNull(nameof(factory), factory);
Guard.ArgumentNotNull(nameof(processorOptions), processorOptions);
// Initialize partition manager options with default values if not already set by the client.
if (this.PartitionManagerOptions == null)
{
// Assign partition manager with default options.
this.PartitionManagerOptions = new PartitionManagerOptions();
}
ProcessorEventSource.Log.EventProcessorHostOpenStart(this.HostName, factory.GetType().ToString());
try
{
// Override operation timeout by receive timeout?
if (processorOptions.ReceiveTimeout > TimeSpan.MinValue)
{
this.OperationTimeout = processorOptions.ReceiveTimeout;
if (this.eventHubConnectionString != null)
{
var cbs = new EventHubsConnectionStringBuilder(this.eventHubConnectionString)
{
OperationTimeout = processorOptions.ReceiveTimeout
};
this.eventHubConnectionString = cbs.ToString();
}
}
// Initialize lease manager if this is an AzureStorageCheckpointLeaseManager
(this.LeaseManager as AzureStorageCheckpointLeaseManager)?.Initialize(this);
this.ProcessorFactory = factory;
this.EventProcessorOptions = processorOptions;
await this.PartitionManager.StartAsync().ConfigureAwait(false);
}
catch (Exception e)
{
ProcessorEventSource.Log.EventProcessorHostOpenError(this.HostName, e.ToString());
throw;
}
finally
{
ProcessorEventSource.Log.EventProcessorHostOpenStop(this.HostName);
}
}