/// <summary>
/// Deletes a file after successful upload from the DB, and from disk if this was instructed by the caller.
/// </summary>
/// <param name="fileToDelete">The pending file to be deleted</param>
private void DeletePendingFile(ScheduledUpload fileToDelete)
{
if (fileToDelete.DeleteFile)
{
if (File.Exists(fileToDelete.FilePath))
{
try
{
File.Delete(fileToDelete.FilePath);
}
catch (IOException e)
{
Logger.Error("Cannot delete uploaded file {0}: {1}", fileToDelete.FilePath, e.Message);
}
}
}
}
/// <summary>
/// Schedules a file to be uploaded to thebackend.
/// </summary>
/// <param name="filePath">Absolute path to the file that is going to be uploaded</param>
/// <param name="callback">Optional callback which is sent back to the caller with information about the uploading outcome</param>
/// <param name="deleteFile">Indicates if files need to be deleted after successful upload. Default is true</param>
/// <returns>True if the file is scheduled for upload</returns>
public bool UploadFileFile(string filePath, UploadCallback callback = null, bool deleteFile = true)
{
lock (enqueueLock)
{
if (this.isDisposed || this.isShuttingDown)
{
Logger.Error("This instance is disposed or shutting down.");
return(false);
}
if (!this.isInitialized)
{
Logger.Error("This instance is not initialized. Call Initialize() first");
return(false);
}
var fileFullPath = Path.GetFullPath(filePath);
Logger.Debug("Scheduling upload of file {0}", fileFullPath);
// set up file makes all the initial validations
var fileToUpload = new ScheduledUpload(fileFullPath)
{
DeleteFile = deleteFile,
Callback = callback
};
// now enqueue the file for upload
if (this.pendingUploadCollection.TryAdd(fileToUpload))
{
Logger.Info("The dialogue file {0} is scheduled for upload", fileFullPath);
return(true);
}
else
{
// blocking collection is full
Logger.Error("Cannot upload dialogue file {0} since upload queue is full", fileFullPath);
return(false);
}
}
}
/// <summary>
/// Uploads a file to the backend.
/// </summary>
/// <param name="fileToUpload">A file to be uploaded to the backend.</param>
/// <param name="putUrl">url where file is to be uploaded</param>
/// <returns>A <see cref="UploadResult"/> indicating the outcome of the upload process</returns>
internal UploadResult UploadFile(ScheduledUpload fileToUpload, string putUrl)
{
if (string.IsNullOrWhiteSpace(putUrl))
{
Logger.Error("No resource Id for file {0}", fileToUpload.FilePath);
return(new UploadResult(false, string.Format("No resource Id for file {0}", fileToUpload.FilePath)));
}
const string fileContentType = "application/x-www-form-urlencoded";
byte[] fileInBytes = File.ReadAllBytes(fileToUpload.FilePath);
var restRequestFile = new RestRequest(putUrl, Method.PUT)
{
RequestFormat = DataFormat.Xml
};
restRequestFile.AddHeader(AuthTokenKey, this.authToken);
restRequestFile.AddHeader(ContentTypeKey, fileContentType);
restRequestFile.AddParameter(fileContentType, fileInBytes, fileContentType, ParameterType.RequestBody);
var restClient = new RestClient(new Uri(this.backendUrl));
var response = restClient.Put(restRequestFile);
switch (response.StatusCode)
{
case System.Net.HttpStatusCode.Unauthorized:
return(new UploadResult(false, string.Format("Unauthorized to upload {0}", fileToUpload.FilePath)));
case System.Net.HttpStatusCode.OK:
// file has been uploaded, thus we can remove it from pending files list
Logger.Info("{0} was uploaded correctly: {1}", fileToUpload.FilePath, response.StatusDescription);
return(new UploadResult(true, string.Empty));
default:
Logger.Error("Could not upload {0}: {1} - {2}", fileToUpload.FilePath, Convert.ToInt32(response.StatusCode), response.Content);
return(new UploadResult(false, string.Format("Could not upload {0}: {1} - {2}", fileToUpload.FilePath, Convert.ToInt32(response.StatusCode), response.StatusDescription)));
}
}
