private static EventHubSender CreatePartitionedSender()
{
// EventHubClient model (uses implicit factory instance, so all links on same connection)
EventHubClient eventHubClient = EventHubClient.Create("contoso-trucks");
// return sender for partition '1'
return(eventHubClient.CreatePartitionedSender("1"));
}
public void InitializeEventHub()
{
var builder = new ServiceBusConnectionStringBuilder();
builder.Endpoints.Add(new Uri("sb://" + this.appConfig.EventHubNamespace + "." + this.appConfig.EventHubFqnAddress));
builder.EntityPath = this.appConfig.EventHubEntityPath;
builder.SharedAccessKeyName = this.appConfig.EventHubUsername;
builder.SharedAccessKey = this.appConfig.EventHubPassword;
builder.TransportType = TransportType.Amqp;
Context.Logger.Info("EventHubWriter: ConnectionString = {0} ParitionId = {1}",
builder.ToString(), Context.TopologyContext.GetThisTaskIndex());
eventHubClient = EventHubClient.CreateFromConnectionString(builder.ToString());
//TODO: Implement a distribution strategy of partitions in case number of bolt tasks is less than partitions in EventHub
eventHubSender = eventHubClient.CreatePartitionedSender(Context.TopologyContext.GetThisTaskIndex().ToString());
}
public void Scenario2_EventHubSendToPartition(string eventHubEntity, string partitionId)
{
ServiceBusConnectionStringBuilder builder = new ServiceBusConnectionStringBuilder(this.ConnectionString);
builder.TransportType = TransportType.Amqp;
MessagingFactory factory = MessagingFactory.CreateFromConnectionString(this.ConnectionString);
EventHubClient client = factory.CreateEventHubClient(eventHubEntity);
EventHubSender sender = client.CreatePartitionedSender(partitionId);
EventData data = new EventData(Encoding.UTF8.GetBytes("Body"));
data.Properties["time"] = DateTime.UtcNow;
sender.Send(data);
sender.Close();
client.Close();
factory.Close();
}
/// <summary>
/// Publish 10 Event Hub messages
/// </summary>
/// <param name="eventHubClient">EventHubClient object</param>
/// <returns>Task object</returns>
private async Task Publish10MessagesToEventHub(EventHubClient eventHubClient)
{
int maxMessagesToPublish = 10;
int successMessageSentCounter = 0;
Console.WriteLine($"About to publish [{maxMessagesToPublish}] message !\n");
for (var counter = 0; counter < maxMessagesToPublish; counter++)
{
try
{
var message = $"Sample event message {counter + 1}";
Console.WriteLine($"\tPublishing message content of [{message}]");
var eventData = new EventData(Encoding.UTF8.GetBytes(message));
EventHubSender eventHubSender = eventHubClient.CreatePartitionedSender(PARTITION_ID);
await eventHubSender.SendAsync(eventData);
Console.WriteLine($"\tPublishing message [{counter + 1}] is completed !\n");
successMessageSentCounter++;
}
catch (Exception exception)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Error occurred !");
Console.WriteLine(exception);
}
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Delay 1 seconds for the publish the next message !\n");
await Task.Delay(1000); // Delay 1 seconds for the publish the next message
}
if (successMessageSentCounter > 0)
{
Console.WriteLine($"[{successMessageSentCounter}] messages published successfully !\n");
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("No message published !");
}
}
internal static void SendMessageToEventHub(string payload)
{
string connectionString = "Endpoint=sb://kioskeventhub.servicebus.windows.net/;SharedAccessKeyName=AllowSend;SharedAccessKey=tvzonqLkFUm+9AXlT/rq8Fmh0HlzND7MwOiGW6r0TNo=";
ServiceBusConnectionStringBuilder builder = new ServiceBusConnectionStringBuilder(connectionString);
builder.TransportType = TransportType.Amqp;
if (factory == null)
{
factory = MessagingFactory.CreateFromConnectionString(connectionString);
}
if (client == null)
{
client = factory.CreateEventHubClient("hub1");
}
EventHubSender sender = client.CreatePartitionedSender("partition");
EventData data = new EventData(Encoding.UTF8.GetBytes(payload));
data.Properties["time"] = DateTime.UtcNow;
sender.Send(data);
sender.Close();
}
public void InitializeEventHub()
{
Context.Logger.Info("Initializing EventHubClient and EventHubSender...");
var builder = new ServiceBusConnectionStringBuilder();
builder.Endpoints.Add(new Uri("sb://" + this.appConfig.EventHubNamespace + "." + this.appConfig.EventHubFqnAddress));
builder.EntityPath = this.appConfig.EventHubEntityPath;
builder.SharedAccessKeyName = this.appConfig.EventHubSharedAccessKeyName;
builder.SharedAccessKey = this.appConfig.EventHubSharedAccessKey;
builder.TransportType = TransportType.Amqp;
Context.Logger.Info("EventHubWriter: ConnectionString = {0} ParitionId = {1}",
builder.ToString(), Context.TopologyContext.GetThisTaskIndex());
eventHubClient = EventHubClient.CreateFromConnectionString(builder.ToString());
//TODO: Implement a distribution strategy of partitions in case number of bolt tasks is less than partitions in EventHub
eventHubSender = eventHubClient.CreatePartitionedSender(Context.TopologyContext.GetThisTaskIndex().ToString());
}
public void InitializeEventHub()
{
Context.Logger.Info("Current AppConfig File: " + ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None));
Context.Logger.Info("Current AppSettings: " + String.Join(Environment.NewLine, ConfigurationManager.AppSettings.AllKeys));
this.EventHubNamespace = ConfigurationManager.AppSettings["EventHubNamespace"];
if (String.IsNullOrWhiteSpace(this.EventHubNamespace))
{
throw new ArgumentException("A required AppSetting cannot be null or empty", "EventHubNamespace");
}
this.EventHubEntityPath = ConfigurationManager.AppSettings["EventHubEntityPath"];
if (String.IsNullOrWhiteSpace(this.EventHubEntityPath))
{
throw new ArgumentException("A required AppSetting cannot be null or empty", "EventHubEntityPath");
}
this.EventHubSharedAccessKeyName = ConfigurationManager.AppSettings["EventHubSharedAccessKeyName"];
if (String.IsNullOrWhiteSpace(this.EventHubSharedAccessKeyName))
{
throw new ArgumentException("A required AppSetting cannot be null or empty", "EventHubSharedAccessKeyName");
}
this.EventHubSharedAccessKey = ConfigurationManager.AppSettings["EventHubSharedAccessKey"];
if (String.IsNullOrWhiteSpace(this.EventHubSharedAccessKey))
{
throw new ArgumentException("A required AppSetting cannot be null or empty", "EventHubSharedAccessKey");
}
this.EventHubPartitions = ConfigurationManager.AppSettings["EventHubPartitions"];
if (String.IsNullOrWhiteSpace(this.EventHubPartitions))
{
throw new ArgumentException("A required AppSetting cannot be null or empty", "EventHubPartitions");
}
var builder = new ServiceBusConnectionStringBuilder();
builder.Endpoints.Add(new Uri("sb://" + this.EventHubNamespace + "." + EventHubFqnAddress));
builder.EntityPath = this.EventHubEntityPath;
builder.SharedAccessKeyName = this.EventHubSharedAccessKeyName;
builder.SharedAccessKey = this.EventHubSharedAccessKey;
builder.TransportType = TransportType.Amqp;
var partitionCount = int.Parse(this.EventHubPartitions);
TopologyContext topologyContext = Context.TopologyContext;
Context.Logger.Info(this.GetType().Name + " TopologyContext info:");
Context.Logger.Info("TaskId: {0}", topologyContext.GetThisTaskId());
var taskIndex = topologyContext.GetThisTaskIndex();
Context.Logger.Info("TaskIndex: {0}", taskIndex);
string componentId = topologyContext.GetThisComponentId();
Context.Logger.Info("ComponentId: {0}", componentId);
List<int> componentTasks = topologyContext.GetComponentTasks(componentId);
Context.Logger.Info("ComponentTasks: {0}", componentTasks.Count);
if (partitionCount != componentTasks.Count)
{
throw new Exception(
String.Format("Component task count does not match partition count. Component: {0}, Tasks: {1}, Partition: {2}",
componentId, componentTasks.Count, partitionCount));
}
partitionId = taskIndex.ToString();
Context.Logger.Info(this.GetType().Name + " ConnectionString = {0}, ParitionId = {1}",
builder.ToString(), partitionId);
eventHubClient = EventHubClient.CreateFromConnectionString(builder.ToString());
eventHubSender = eventHubClient.CreatePartitionedSender(partitionId);
}
public void InitializeEventHub()
{
Context.Logger.Info("Current AppConfig File: " + ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None));
Context.Logger.Info("Current AppSettings: " + String.Join(Environment.NewLine, ConfigurationManager.AppSettings.AllKeys));
this.EventHubNamespace = ConfigurationManager.AppSettings["EventHubNamespace"];
if (String.IsNullOrWhiteSpace(this.EventHubNamespace))
{
throw new ArgumentException("A required AppSetting cannot be null or empty", "EventHubNamespace");
}
this.EventHubEntityPath = ConfigurationManager.AppSettings["EventHubEntityPath"];
if (String.IsNullOrWhiteSpace(this.EventHubEntityPath))
{
throw new ArgumentException("A required AppSetting cannot be null or empty", "EventHubEntityPath");
}
this.EventHubSharedAccessKeyName = ConfigurationManager.AppSettings["EventHubSharedAccessKeyName"];
if (String.IsNullOrWhiteSpace(this.EventHubSharedAccessKeyName))
{
throw new ArgumentException("A required AppSetting cannot be null or empty", "EventHubSharedAccessKeyName");
}
this.EventHubSharedAccessKey = ConfigurationManager.AppSettings["EventHubSharedAccessKey"];
if (String.IsNullOrWhiteSpace(this.EventHubSharedAccessKey))
{
throw new ArgumentException("A required AppSetting cannot be null or empty", "EventHubSharedAccessKey");
}
this.EventHubPartitions = ConfigurationManager.AppSettings["EventHubPartitions"];
if (String.IsNullOrWhiteSpace(this.EventHubPartitions))
{
throw new ArgumentException("A required AppSetting cannot be null or empty", "EventHubPartitions");
}
var builder = new ServiceBusConnectionStringBuilder();
builder.Endpoints.Add(new Uri("sb://" + this.EventHubNamespace + "." + EventHubFqnAddress));
builder.EntityPath = this.EventHubEntityPath;
builder.SharedAccessKeyName = this.EventHubSharedAccessKeyName;
builder.SharedAccessKey = this.EventHubSharedAccessKey;
builder.TransportType = TransportType.Amqp;
var partitionCount = int.Parse(this.EventHubPartitions);
TopologyContext topologyContext = Context.TopologyContext;
Context.Logger.Info(this.GetType().Name + " TopologyContext info:");
Context.Logger.Info("TaskId: {0}", topologyContext.GetThisTaskId());
var taskIndex = topologyContext.GetThisTaskIndex();
Context.Logger.Info("TaskIndex: {0}", taskIndex);
string componentId = topologyContext.GetThisComponentId();
Context.Logger.Info("ComponentId: {0}", componentId);
List <int> componentTasks = topologyContext.GetComponentTasks(componentId);
Context.Logger.Info("ComponentTasks: {0}", componentTasks.Count);
if (partitionCount != componentTasks.Count)
{
throw new Exception(
String.Format("Component task count does not match partition count. Component: {0}, Tasks: {1}, Partition: {2}",
componentId, componentTasks.Count, partitionCount));
}
partitionId = taskIndex.ToString();
Context.Logger.Info(this.GetType().Name + " ConnectionString = {0}, ParitionId = {1}",
builder.ToString(), partitionId);
eventHubClient = EventHubClient.CreateFromConnectionString(builder.ToString());
eventHubSender = eventHubClient.CreatePartitionedSender(partitionId);
}
