private async Task <UploadFileResult> UploadFileAsync(File4Flickr file4Flickr)
{
var result = await Task.Run(() =>
{
var uploadFileResult = UploadFile(file4Flickr);
return(uploadFileResult);
});
return(result);
}
/// <summary>
/// zakladni upload Photo na flickr s podporou retry pokusu (flickr je zrejme pretizeny a obcas haze service unavailable atd)
/// </summary>
public UploadFileResult UploadFile(File4Flickr file4Flickr, int maxRetryAttemps = 10)
{
var startTime = DateTime.Now;
string photoId = null;
var retryAttemp = 0;
while (string.IsNullOrEmpty(photoId))
{
try
{
photoId = UploadPicture(file4Flickr);
// nechapu co to ma znamenat, ale jednou se ted stalo, ze upload probehl v poradku, avsak photoId bylo prazdne?? a na flickru fotky skutecne nejsou
// vyvolam tedy vyjimku, aby probehlo uploadovani znovu
if (string.IsNullOrEmpty(photoId))
{
throw new FlickrExtenderException("PhotoId is empty!");
}
}
catch (Exception ex) when(ex is WebException || ex is IOException || ex is FlickrExtenderException)
{
// v pripade nekterych http protocol erroru zkusim retry - mozna by bylo vhodne to zkouset pri kazde chybe?
if (retryAttemp++ < maxRetryAttemps)
{
if (ex is WebException)
{
Logger.Write(string.Format("WebException message:{0} status:{1}", ex.Message, (ex as WebException).Status), VtLogState.Error);
}
else
{
Logger.Write(string.Format("{0} error:{1}", ex.GetType().Name, ex.Message), VtLogState.Error);
}
Logger.Write(string.Format("Retry #:{0}", retryAttemp), VtLogState.Info);
}
else
{
throw;
}
}
catch (FlickrApiException flickrApiException)
{
// doslo k nejake flickr API chybe (treba 5: Filetype was not recognised), takze nezkousim retry a skoncim upload s chybou
var result = new UploadFileResult(file4Flickr, startTime, retryAttemp, flickrApiException);
return(result);
}
}
return(new UploadFileResult(file4Flickr, startTime, retryAttemp, photoId));
}
private string UploadPicture(File4Flickr file4Flickr)
{
using (var filestream = new FileStream(file4Flickr.FullName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
//Arguments https://www.flickr.com/services/api/upload.api.html
//photo
// The file to upload.
//title(optional)
// The title of the photo.
//description(optional)
// A description of the photo.May contain some limited HTML.
//tags(optional)
// A space-seperated list of tags to apply to the photo.
//is_public, is_friend, is_family(optional)
// Set to 0 for no, 1 for yes.Specifies who can view the photo.
//safety_level(optional)
// Set to 1 for Safe, 2 for Moderate, or 3 for Restricted.
//content_type(optional)
// Set to 1 for Photo, 2 for Screenshot, or 3 for Other.
//hidden(optional)
// Set to 1 to keep the photo in global search results, 2 to hide from public searches.
var photoId = UploadPicture(filestream,
Path.GetFileName(file4Flickr.FullName),
null,
null,
file4Flickr.FlupTags,
false,
false,
false,
ContentType.None,
SafetyLevel.Restricted,
HiddenFromSearch.Hidden);
filestream.Close();
return(photoId);
}
}
public UploadFileResult(File4Flickr file4Flickr, DateTime startTime, int retryAttemp, FlickrApiException flickrApiException) : this(file4Flickr, startTime, retryAttemp)
{
PhotoId = null;
FlickrApiException = flickrApiException;
}
public UploadFileResult(File4Flickr file4Flickr, DateTime startTime, int retryAttemp, string photoId) : this(file4Flickr, startTime, retryAttemp)
{
PhotoId = photoId;
}
public UploadFileResult(File4Flickr file4Flickr, DateTime startTime, int retryAttemp) : base(startTime)
{
File4Flickr = file4Flickr;
RetryAttemp = retryAttemp;
}
