public override void Run()
{
Trace.TraceInformation("Listening for queue messages...");
while (true)
{
try
{
// retrieve a new message from the queue
CloudQueueMessage msg = this.queue.GetMessage();
if (msg != null)
{
// parse message retrieved from queue
var json = msg.AsString;
var data = JsonConvert.DeserializeObject <GuestbookQueueMessage>(json);
var imageBlobUri = data.BlobUri.ToString();
var partitionKey = data.PartitionKey;
var rowKey = data.RowKey;
Trace.TraceInformation("Processing image in blob '{0}'.", imageBlobUri);
string thumbnailBlobUri = System.Text.RegularExpressions.Regex.Replace(imageBlobUri, "([^\\.]+)(\\.[^\\.]+)?$", "$1-thumb$2");
CloudBlob inputBlob = this.blobContainer.GetBlobReference(imageBlobUri);
CloudBlob outputBlob = this.blobContainer.GetBlobReference(thumbnailBlobUri);
using (BlobStream input = inputBlob.OpenRead())
using (BlobStream output = outputBlob.OpenWrite())
{
this.ProcessImage(input, output);
// commit the blob and set its properties
output.Commit();
outputBlob.Properties.ContentType = "image/jpeg";
outputBlob.SetProperties();
// update the entry in table storage to point to the thumbnail
GuestBookService ds = new GuestBookService("DataConnectionString");
ds.UpdateImageThumbnail(partitionKey, rowKey, thumbnailBlobUri);
// remove message from queue
this.queue.DeleteMessage(msg);
Trace.TraceInformation("Generated thumbnail in blob '{0}'.", thumbnailBlobUri);
}
}
else
{
System.Threading.Thread.Sleep(1000);
}
}
catch (StorageClientException e)
{
Trace.TraceError("Exception when processing queue item. Message: '{0}'", e.Message);
System.Threading.Thread.Sleep(5000);
}
}
}
public override void Run()
{
while (true)
{
try
{
CloudQueueMessage message = _queue.GetMessage();
if (message != null)
{
string[] messageArray = message.AsString.Split(new char[] { ',' });
string outputBlobUri = messageArray[0];
string partitionKey = messageArray[1];
string rowkey = messageArray[2];
_queue.PeekMessage();
string inputBlobUri = Regex.Replace(outputBlobUri, "([^\\.]+)(\\.[^\\.]+)?$", "$1-myimage$2");
_container.CreateIfNotExist();
CloudBlob inputBlob = _container.GetBlobReference(outputBlobUri);
CloudBlob outputBlob = _container.GetBlobReference(inputBlobUri);
using (BlobStream input = inputBlob.OpenRead())
using (BlobStream output = outputBlob.OpenWrite())
{
ProcessImage(input, output);
output.Commit();
outputBlob.Properties.ContentType = "image/jpeg";
outputBlob.SetProperties();
FunnyAppRepository <Post> postRepository = new FunnyAppRepository <Post>();
Post post = postRepository.Find(partitionKey, rowkey);
post.PostImage = inputBlobUri;
post.State = true;
postRepository.Update(post);
postRepository.SubmitChange();
_queue.DeleteMessage(message);
}
}
}
catch (StorageClientException e)
{
Trace.Write(e);
}
}
}
public int CloseFile(string filename, DokanFileInfo info)
{
BlobStream stream = null;
if (blobsWriting.TryRemove(filename, out stream))
{
Trace.WriteLine(string.Format("CloseFile {0}", filename));
stream.Commit();
stream.Dispose();
this.blobCache.Remove(filename);
stream.Blob.Container.InvalidateCache();
}
return(0);
}
