public static async Task RunAsync([QueueTrigger("myqueue-items", Connection = "AzureWebJobsStorage")] string QueueItem, ILogger log)
{
try
{
log.LogInformation($"C# Queue trigger function processed");
QueueMessage queueItem = Newtonsoft.Json.JsonConvert.DeserializeObject <QueueMessage>(QueueItem);
WeatherData data = new WeatherData();
Weather weather = await data.GetWeatherData(queueItem.cityName);
Coordinates coordinates = weather.coord;
Stream image;
log.LogInformation($"C# Queue trigger function processed: Get beer advice, weather conditions are: {Math.Round(weather.main.Temp - 272.15, 2).ToString()} Celsius");
string beerAdvice = GetBeerAdvice(weather);
CloudBlockBlob blob = await GetStorageAccount(log, queueItem);
MapData mapdata = new MapData();
image = await mapdata.GetMapData(coordinates.lon, coordinates.lat);
string Temp = "Temperature is : " + Math.Round(weather.main.Temp - 272.15, 2).ToString() + " Celcius";
var ImageWithText = ImageHelper.AddTextToImage(image, (Temp, (10, 20)), (beerAdvice, (10, 50)));
await blob.UploadFromStreamAsync(ImageWithText);
}
catch
{
log.LogError("something went wrong");
}
}
private static Bitmap CreateCaptcha(string backgroundImagePath, int captchaLenght, CaptchaCharOptions captchaCharOptions)
{
string chars;
switch (captchaCharOptions)
{
case CaptchaCharOptions.Alpha:
{
chars = "ABCDEFGHIJKLMNOPRSTUVYZQWXabcdefghijkmnoprstuvyzqwx";
break;
}
case CaptchaCharOptions.Numeric:
{
chars = "0123456789";
break;
}
case CaptchaCharOptions.Alphanumeric:
{
chars = "ABCDEFGHIJKLMNOPRSTUVYZQWXabcdefghijkmnoprstuvyzqwx0123456789";
break;
}
case CaptchaCharOptions.AlphanumericPlus:
{
chars = "ABCDEFGHIJKLMNOPRSTUVYZQWXabcdefghijkmnoprstuvyzqwx0123456789/*-+()?";
break;
}
default:
{
chars = "ABCDEFGHIJKLMNOPRSTUVYZQWXabcdefghijkmnoprstuvyzqwx0123456789";
break;
}
}
var code = "";
var random = new Random();
for (var i = 0; i < captchaLenght; i++)
{
var character = chars[random.Next(0, chars.Length - 1)];
code += character;
}
var bitmap = (Bitmap)Image.FromFile(backgroundImagePath);
var font = new Font("Times New Roman", 20, FontStyle.Bold);
var textColor = Color.Gray;
var textBackColor = Color.Transparent;
HttpContext.Current.Session[WebCommonConstants.CaptchaKey] = code;
return(ImageHelper.AddTextToImage(bitmap, code, 50, DirectionOptions.Center, font, true, textColor, textBackColor, HatchStyle.Percent80));
}
public static async System.Threading.Tasks.Task RunAsync([QueueTrigger("mapqueue", Connection = "AzureWebJobsStorage")] string queueMessage, TraceWriter log)
{
try
{
// Create the HttpClient
var client = new HttpClient();
// Convert Json message back to its original object (lon, lat, blobname, blobcontainerreference)
QueueStorageMessage queueStorageMessage = JsonConvert.DeserializeObject <QueueStorageMessage>(queueMessage);
// Retrieve storage account
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(Environment.GetEnvironmentVariable("AzureWebJobsStorage"));
// Retrieve container if it exists, create one if not
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
var container = blobClient.GetContainerReference("mapblob");
await container.CreateIfNotExistsAsync();
// Create the blob
CloudBlockBlob blockBlob = container.GetBlockBlobReference(queueStorageMessage.blobName);
// Retrieve the picture for the given city using its lat and lon
var url = String.Format("https://atlas.microsoft.com/map/static/png?subscription-key={0}&api-version=1.0¢er={1},{2}", Environment.GetEnvironmentVariable("MapsAPIKey"), queueStorageMessage.lon, queueStorageMessage.lat);
client.BaseAddress = new Uri(url);
HttpResponseMessage responseMessage = await client.GetAsync(url);
if (responseMessage.IsSuccessStatusCode)
{
Stream stream = await responseMessage.Content.ReadAsStreamAsync();
// Check if the the temprature is high enough to have a beer
string bier = checkForBier(queueStorageMessage);
// Format the string to add the celcius degree symbol
string temprature = String.Format("Temp: {0} \u2103", queueStorageMessage.temp.ToString());
// Draw on the image using the ImageHelper class
Stream renderedImage = ImageHelper.AddTextToImage(stream, (temprature, (10, 20)), (bier, (10, 50)));
// Upload the image to the blob
await blockBlob.UploadFromStreamAsync(renderedImage);
log.Info("City has been found and image was uploaded succesfully");
}
else
{
log.Error("Could not retrieve the map for the given coordinates");
}
}
catch
{
log.Error("Something went wrong.");
}
}
private static async Task <Stream> AddTextToImage(RootWeather weatherRootObject, HttpResponseMessage httpResponseMessage)
{
int temperature = Convert.ToInt32(weatherRootObject.Main.Temp);
double windSpeed = weatherRootObject.Wind.Speed;
Stream responseContent = await httpResponseMessage.Content.ReadAsStreamAsync();
string text1 = GetBeerMessage(temperature);
string text2 = string.Format($"Temperature: {temperature}");
string text3 = string.Format($"Wind: {windSpeed}km/u");
var renderedImage = ImageHelper.AddTextToImage(responseContent, (text1, (20, 20)), (text2, (20, 50)), (text3, (20, 80)));
return(renderedImage);
}
public static void Run([QueueTrigger("requestbierrapport", Connection = "")] string myQueueItem, ILogger log)
{
var item = JsonConvert.DeserializeObject <LocationQueueItem>(myQueueItem);
var forecast = OpenWeatherHelper.getForecastFor(item.city, item.country);
var image = AzureMapsHelper.getImage(new Tuple <double, double>(forecast.coord.lat, forecast.coord.lon));
string text2 = "Mooi weer voor bier";
if (forecast.main.temp < 18)
{
text2 = "slecht weer voor bier";
}
var editedImage = ImageHelper.AddTextToImage(image, ("het is " + forecast.main.temp.ToString() + " graden buiten", (10, 20)), (text2, (150, 300)));
CloudStoarge.upload(item.id + ".png", editedImage as MemoryStream);
}
