public static async Task TransferFileAsync(AzureFileTransferInfo transferInfo, ISystemConfiguratorProxy systemConfiguratorProxy)
{
//
// C++ Azure Blob SDK not supported for ARM, so use Service to copy file to/from
// App's LocalData and then use C# Azure Blob SDK to transfer
//
var appLocalDataFile = await ApplicationData.Current.TemporaryFolder.CreateFileAsync(transferInfo.BlobName, CreationCollisionOption.ReplaceExisting);
transferInfo.AppLocalDataPath = appLocalDataFile.Path;
if (!transferInfo.Upload)
{
transferInfo.AppLocalDataPath = await DownloadFile(transferInfo, appLocalDataFile);
}
// use C++ service to copy file to/from App LocalData
var request = new AzureFileTransferRequest(transferInfo);
var result = await systemConfiguratorProxy.SendCommandAsync(request);
if (transferInfo.Upload)
{
await UploadFile(transferInfo, appLocalDataFile);
}
await appLocalDataFile.DeleteAsync();
}
private async Task <string> UploadDMFile(string jsonParamString)
{
Logger.Log("Uploading DM file...", LoggingLevel.Information);
try
{
object paramsObject = JsonConvert.DeserializeObject(jsonParamString);
if (paramsObject == null || !(paramsObject is JObject))
{
throw new Error(ErrorCodes.INVALID_PARAMS, "Invalid enumDMFiles parameters.");
}
JObject jsonParamsObject = (JObject)paramsObject;
string folderName = GetParameter(jsonParamsObject, JsonFolder, ErrorCodes.INVALID_FOLDER_PARAM, "Invalid or missing folder parameter.");
string fileName = GetParameter(jsonParamsObject, JsonFile, ErrorCodes.INVALID_FILE_PARAM, "Invalid or missing folder parameter.");
var info = new AzureFileTransferInfo();
info.ConnectionString = GetParameter(jsonParamsObject, JsonConnectionString, ErrorCodes.INVALID_CONNECTION_STRING_PARAM, "Invalid or missing connection string parameter.");
info.ContainerName = GetParameter(jsonParamsObject, JsonContainer, ErrorCodes.INVALID_CONTAINER_PARAM, "Invalid or missing container parameter.");
info.BlobName = fileName;
info.Upload = true;
info.RelativeLocalPath = folderName + "\\" + fileName;
info.AppLocalDataPath = ApplicationData.Current.TemporaryFolder.Path + "\\" + fileName;
AzureFileTransferRequest request = new AzureFileTransferRequest(info);
var response = _systemConfiguratorProxy.SendCommand(request);
if (response.Status != ResponseStatus.Success)
{
throw new Error(ErrorCodes.ERROR_MOVING_FILE, "SystemConfigurator failed to move file.");
}
Logger.Log("File copied to UWP application temporary folder...", LoggingLevel.Information);
var appLocalDataFile = await ApplicationData.Current.TemporaryFolder.GetFileAsync(fileName);
Logger.Log("Uploading file...", LoggingLevel.Information);
await IoTDMClient.AzureBlobFileTransfer.UploadFile(info, appLocalDataFile);
Logger.Log("Upload done. Deleting local temporary file...", LoggingLevel.Information);
await appLocalDataFile.DeleteAsync();
Logger.Log("Temporary file deleted..", LoggingLevel.Information);
return(BuildMethodJsonResponseString("" /*payload*/, SuccessCode, "" /*error message*/));
}
catch (Exception err)
{
return(BuildMethodJsonResponseString("", err.HResult, err.Message));
}
}