/// <summary>
/// Send resize image message
/// </summary>
/// <param name="blobHandle">Blob handle</param>
/// <param name="imageType">Image type</param>
/// <returns>Send message task</returns>
public async Task SendResizeImageMessage(string blobHandle, ImageType imageType)
{
ResizeImageMessage message = new ResizeImageMessage()
{
BlobHandle = blobHandle,
ImageType = imageType
};
Queue queue = await this.QueueManager.GetQueue(this.QueueIdentifier);
await queue.SendAsync(message);
}
/// <summary>
/// Process message
/// </summary>
/// <param name="message">Queue message</param>
/// <returns>Process message task</returns>
protected override async Task Process(IMessage message)
{
if (message is ResizeImageMessage)
{
ResizeImageMessage resizeImageMessage = message as ResizeImageMessage;
if (resizeImageMessage.DequeueCount == 1)
{
await this.blobsManager.CreateImageResizes(ProcessType.Backend, resizeImageMessage.BlobHandle, resizeImageMessage.ImageType);
}
else
{
await this.blobsManager.CreateImageResizes(ProcessType.BackendRetry, resizeImageMessage.BlobHandle, resizeImageMessage.ImageType);
}
}
}
public void ResizeImage(ResizeImageMessage resizeImageMessage, ILogger logger)
{
var resizeTask = Task.Run(async() =>
{
try
{
var connectionString = _configuration[$"Storage:Blobs:{resizeImageMessage.BlobStorageName}:ConnectionString"]
?? throw new ApplicationException($"Could not find 'Storage:Blobs:{resizeImageMessage.BlobStorageName}:ConnectionString' configuration section");
var cloudBlockBlob = new CloudBlockBlob(new Uri(resizeImageMessage.FullBlobPath), GetBlobClient(connectionString));
if (await cloudBlockBlob.ExistsAsync())
{
using (var stream = new MemoryStream())
{
await cloudBlockBlob.DownloadToStreamAsync(stream);
using (var bitmap = new Bitmap(stream))
{
var newSize = resizeImageMessage.Size == ImageSize.L ? _largeSize : resizeImageMessage.Size == ImageSize.M ? _mediumSize : _smallSize;
using (var resizedImage = FixedSize(bitmap, newSize))
{
var imageFullPath = $"{resizeImageMessage.Location}\\{resizeImageMessage.OriginalName}-{resizeImageMessage.Size}.jpg";
var resizedImageBlob = cloudBlockBlob.Container.GetBlockBlobReference(imageFullPath);
var bytes = ImageToByteArray(resizedImage);
await resizedImageBlob.UploadFromByteArrayAsync(bytes, 0, bytes.Length);
resizedImageBlob.Properties.ContentType = "image/jpeg";
await resizedImageBlob.SetPropertiesAsync();
}
}
}
}
}
catch (Exception e)
{
logger.LogError(e.Message);
}
});
resizeTask.Wait();
}
