private async void button3_Click(object sender, EventArgs e)
{
try
{
string pdffilename = System.IO.Path.GetFileName(openFileDialog1.FileName);
string metadatafilename = System.IO.Path.GetFileName(openFileDialog2.FileName);
if (pdffilename == null || metadatafilename == null)
{
MessageBox.Show("Please select both pdf & Metadata files.");
}
else
{
string path = Application.StartupPath.Substring(0, (Application.StartupPath.Length - 10));
System.IO.File.Copy(openFileDialog1.FileName, path + "\\Documents\\" + pdffilename);
string currentDirectory = Directory.GetCurrentDirectory();
string filePath = System.IO.Path.Combine(path, "Documents", pdffilename);
string BlobStorageConnection = ConfigurationManager.AppSettings["BlobStorageConnection"];
// await BlobStorage.SavePdf(BlobStorageConnection, filePath);
string EventHubConnectionString = ConfigurationManager.AppSettings["EventHubConnectionString"];
System.IO.File.Copy(openFileDialog2.FileName, path + "\\Documents\\" + metadatafilename);
string filePathMeta = System.IO.Path.Combine(path, "Documents", metadatafilename);
AttachmentMetaData eventHubMessage = JsonHelpers.CreateFromJsonFile <AttachmentMetaData>(filePathMeta);
await EventHubsHelper.PushMessageToEventHubsAsync(eventHubMessage, EventHubConnectionString);
MessageBox.Show("Document uploaded.");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
// Creates an event hub client and sends 100 messages to the event hub.
private static async Task SendMessagesToEventHub(AttachmentMetaData msg)
{
try
{
var message = JsonConvert.SerializeObject(msg);
Console.WriteLine($"Sending message: {message}");
await eventHubClient.SendAsync(new Microsoft.Azure.EventHubs.EventData(Encoding.UTF8.GetBytes(message)));
}
catch (Exception exception)
{
Console.WriteLine($"{DateTime.Now} > Exception: {exception.Message}");
}
}
public static async Task PushMessageToEventHubsAsync(AttachmentMetaData msg, string eventHubConnectionString)
{
// Creates an EventHubsConnectionStringBuilder object from the connection string, and sets the EntityPath.
// Typically, the connection string should have the entity path in it, but for the sake of this simple scenario
// we are using the connection string from the namespace.
var connectionStringBuilder = new EventHubsConnectionStringBuilder(eventHubConnectionString)
{
EntityPath = Constants.EVENT_HUB_NAME
};
eventHubClient = Microsoft.Azure.EventHubs.EventHubClient.CreateFromConnectionString(connectionStringBuilder.ToString());
await SendMessagesToEventHub(msg);
await eventHubClient.CloseAsync();
}
