static internal async void StartMessageGeneratorAsync(int delayInMilliseconds)
{
// the name of the component and the topic happen to be the same here...
const string PubsubComponentName = "receivemediapost";
const string PubsubTopicName = "receivemediapost";
TimeSpan delay = TimeSpan.FromMilliseconds(delayInMilliseconds);
DaprClientBuilder daprClientBuilder = new DaprClientBuilder();
DaprClient client = daprClientBuilder.Build();
while (true)
{
SocialMediaMessage message = GeneratePost();
try
{
Console.WriteLine("Publishing");
using (PublishCallTime.NewTimer())
{
await client.PublishEventAsync <SocialMediaMessage>(PubsubComponentName, PubsubTopicName, message);
}
}
catch (Exception e)
{
Console.WriteLine("Caught {0}", e.ToString());
PublishFailureCount.Inc();
}
await Task.Delay(delay);
}
}
private void wpfBTchatbutton_Click(object sender, RoutedEventArgs e)
{
Button button = (Button)sender;
SocialMediaMessage message = (SocialMediaMessage)button.DataContext;
IUser user = User.GetUserFromScreenName(message.Handle);
ContactWitnessDialog witnessDialogue = new ContactWitnessDialog(user.Id);
witnessDialogue.Show();
}
public async Task <IActionResult> PostMessageBinding([FromBody] SocialMediaMessage message)
{
Console.WriteLine("enter messagebinding");
var duration = DateTime.UtcNow - message.PreviousAppTimestamp;
BindingDuration.Set(duration.TotalSeconds);
Console.WriteLine($"{message.CreationDate}, {message.CorrelationId}, {message.MessageId}, {message.Message}, {message.Sentiment}");
int indexOfHash = message.Message.LastIndexOf('#');
string hashTag = message.Message.Substring(indexOfHash + 1);
string key = hashTag + "_" + message.Sentiment;
var actorId = new ActorId(key);
var proxy = ActorProxy.Create <IHashTagActor>(actorId, "HashTagActor");
Console.WriteLine($"Increasing {key}.");
Exception ex = null;
try
{
await proxy.Increment(key);
Console.WriteLine($"Increasing {key} successful.");
}
catch (Exception e)
{
Console.WriteLine($"Increasing {key} failed with {e}");
ex = e;
ActorMethodFailureCount.Inc();
}
if (ActorMethodFailureCount.Value > 10)
{
throw ex;
}
return(Ok(new HTTPResponse("Received")));
}
/// <summary>
/// Creates a grid showing message information.
/// </summary>
/// <param name="message">will be used to show info</param>
/// <param name="maxWidth">maximum width used to calculate the height</param>
/// <returns>a list of grids containing the information grid and the images</returns>
private List <Grid> CreateMessagePanel(SocialMediaMessage message, double maxWidth)
{
List <Grid> grids = new List <Grid>();
var grid = new Grid {
Width = maxWidth, Margin = new Thickness(0, 8, 0, 0)
}; // Margin between messages on the page
for (int i = 0; i < 4; i++)
{
grid.RowDefinitions.Add(new RowDefinition {
Height = GridLength.Auto
}); // Adding four automatic rows
}
for (int i = 0; i < 2; i++)
{
grid.ColumnDefinitions.Add(new ColumnDefinition {
Width = GridLength.Auto
}); // Adding two automatic collumns
}
grid.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(1, GridUnitType.Star)
});
AddTextRow(grid, 0, "Gebruiker", message.User);
AddTextRow(grid, 1, "Twitter naam", message.Handle);
AddTextRow(grid, 2, "Omschrijving", message.Message);
AddTextRow(grid, 3, "Datum en tijd", $"{message.DateTime}");
grid.DataContext = message; // Used to access the message later on for the images
grid.Measure(new Size(maxWidth, double.PositiveInfinity)); // Required to calculate where to put it on the page
grids.Add(grid);
if (message.Media.Count > 0)
{
for (int i = 0; i < message.Media.Count; i++)
{
Grid imageGrid = new Grid {
Width = maxWidth
};
imageGrid.ColumnDefinitions.Add(new ColumnDefinition {
Width = GridLength.Auto
});
imageGrid.RowDefinitions.Add(new RowDefinition {
Height = GridLength.Auto
});
var img1 = _images[message.Media[i].URL];
imageGrid.Children.Add(img1);
Grid.SetColumn(img1, 0);
if (++i < message.Media.Count)
{
imageGrid.ColumnDefinitions.Add(new ColumnDefinition {
Width = GridLength.Auto
});
var img2 = _images[message.Media[i].URL];
imageGrid.Children.Add(img2);
Grid.SetColumn(img2, 1);
// Calculating aspect ratios of images
var ar1 = img1.Source.Width / img1.Source.Height;
var ar2 = img2.Source.Width / img2.Source.Height;
var arm = ar1 + ar2; // Max aspect
// Percentage of total aspect times maxwidth gives the width for the given aspect ratio making the images equal height
img1.Width = ar1 / arm * maxWidth;
img2.Width = ar2 / arm * maxWidth;
}
else
{
img1.Width = maxWidth;
}
imageGrid.Measure(new Size(maxWidth, double.PositiveInfinity));
grids.Add(imageGrid);
}
}
return(grids);
}
