private bool CreateThumbnail(CloudQueueMessage msg)
{
Trace.TraceInformation("CreateThumbnail called with {0}", msg.AsString);
var parts = msg.AsString.Split('|');
if (parts.Length != 4)
{
Trace.TraceError("Unexpected input to the photo cleanup queue: {0}", msg.AsString);
return(false);
}
// interpret the string
var owner = parts[0];
var albumName = parts[1];
var photoid = parts[2];
var file = parts[3];
var repository = new PhotoRepository();
var photo = repository.GetPhotoByOwner(owner, albumName, photoid);
if (photo != null)
{
// create the thumbnail
try
{
this.CreateThumb(owner, file);
}
catch (Exception ex)
{
// creating the thumbnail failed for some reason
Trace.TraceError("CreateThumb failed for {0} and {1}", owner, file);
Trace.TraceError(ex.ToString());
return(false); // bail out
}
// update table storage with blob data URLs
var client = this.storageAccount.CreateCloudBlobClient();
var blobUri = client.GetContainerReference(owner).GetBlobReference(file).Uri.ToString();
var thumbUri = client.GetContainerReference(owner).GetBlobReference(Path.Combine("thumb", file)).Uri.ToString();
// update the photo entity with thumb and blob location
photo.ThumbnailUrl = thumbUri;
photo.Url = blobUri;
repository.UpdatePhotoData(photo);
var album = repository.GetAlbumsByOwner(owner).Single(a => a.AlbumId == albumName);
if (!album.HasPhotos || string.IsNullOrEmpty(album.ThumbnailUrl))
{
// update the album
album.HasPhotos = true;
album.ThumbnailUrl = photo.ThumbnailUrl;
repository.UpdateAlbum(album);
}
// parse the tags and save them off
var tags = photo.RawTags.Split(';')
.Where(s => s.Trim().Length > 0)
.Select(s => new Tag {
Name = s.Trim().ToLowerInvariant()
})
.ToArray();
repository.CreateTags(photoid, tags);
// TODO, aggregate stats
return(true);
}
// default
Trace.TraceError("CreateThumbnail error, cannot find {0}", photoid);
return(false);
}
