/// <summary>
/// Creates sample messages and sends to the Event Hub
/// </summary>
/// <remarks>
/// The construction of both message types within the loop was done to simplify the code in lieu of flexibility
/// and ease of maintenance. A cleaner approach would to be to refactor out the message construction.
/// </remarks>
public void SendEvents()
{
// Create EventHubClient
EventHubClient client = EventHubClient.CreateFromConnectionString(_connectionString,_eventHubName);
try
{
List<Task> tasks = new List<Task>();
Random random = new Random();
Console.WriteLine("Sending messages to Event Hub {0}", client.Path);
for(int i = 0 ; i < this.numberOfMessages; ++i)
{
int deviceIdValue = random.Next(numberOfDevices);
// Create a FluxMakerStatus message //
FluxMakerStatus makerStatus = new FluxMakerStatus()
{
DeviceId = deviceIdValue,
Temperature = random.Next(100),
Timestamp = DateTime.UtcNow.ToString(),
Humdity = random.Next(68),
Operation = GetOperation(deviceIdValue)
};
var makerStatusSerialized = JsonConvert.SerializeObject(makerStatus);
EventData makerStatusData = new EventData(Encoding.UTF8.GetBytes(makerStatusSerialized))
{
PartitionKey = makerStatus.DeviceId.ToString()
};
// Set optional user properties
makerStatusData.Properties.Add("Type","Telemetry_" + DateTime.UtcNow.ToLongTimeString());
OutputFluxMakerMessage("SENDING: ", makerStatusData, makerStatus);
// Add the sending of FluxMakerStatus to Event Hub to the task list
tasks.Add(client.SendAsync(makerStatusData));
// Create a Flux QA message //
FluxQAStatus qaStatus = new FluxQAStatus()
{
DeviceId = deviceIdValue,
Timestamp = DateTime.UtcNow.ToString(),
LastFluxCapacitorType = GetFluxType(deviceIdValue)
};
var qaStatusSerialized = JsonConvert.SerializeObject(qaStatus);
EventData qaStatusData = new EventData(Encoding.UTF8.GetBytes(qaStatusSerialized))
{
PartitionKey = qaStatus.DeviceId.ToString()
};
// Set optional user properties
qaStatusData.Properties.Add("Type","Telemetry_" + DateTime.UtcNow.ToLongTimeString());
OutputFluxQAMessage("SENDING: ", qaStatusData, qaStatus);
// Add the sending of FluxQAStatus to Event Hub to the task list
tasks.Add(client.SendAsync(qaStatusData));
Console.WriteLine();
};
// Wait on the list of tasks to be executed.
Task.WaitAll(tasks.ToArray());
}
catch (Exception exp)
{
Console.WriteLine("Error on send: " + exp.Message);
}
}
/// <summary>
/// Writes out a message containing the parameters of the FluxMakerStatus message being sent to the Event Hub
/// </summary>
static void OutputFluxMakerMessage(string action, EventData data, FluxMakerStatus status)
{
if (data == null)
{
return;
}
if (status != null)
{
Console.WriteLine("{0}{1} - Device {2}, Temperature {3}, Timestamp {4}, Humidity {5}, Operation {6}"
, action, status, status.DeviceId, status.Temperature, status.Timestamp, status.Humdity, status.Operation);
}
}