public override async Task FinalizeUploadAsync(Document document, ChunkMetaData uploadMetadata)
{
for (uint i = 0; i < document.ChunkCount; i++)
{
string tempFilename = GetTempFileName(uploadMetadata.UploadUid, i);
string fileName = GetFileName(document.ID, i);
File.Move(Path.Combine(_rootDir, tempFilename), Path.Combine(_rootDir, fileName));
_logger.LogDebug(string.Format("File {0} renamed to {1}", tempFilename, fileName));
}
}
public override async Task WriteToStreamAsync(IFormFile file, ChunkMetaData uploadMetadata)
{
string tempFileName = GetTempFileName(uploadMetadata.UploadUid, Convert.ToUInt32(uploadMetadata.ChunkIndex));
var fileRef = _container.GetBlockBlobReference(tempFileName);
_logger.LogDebug("File {0} created in Azure Blob Storage.", tempFileName);
await fileRef.UploadFromStreamAsync(file.OpenReadStream());
_logger.LogDebug("Uploaded the chunks to Azure Blob Storage for file {0}.", tempFileName);
}
public override async Task WriteToStreamAsync(IFormFile file, ChunkMetaData uploadMetadata)
{
string filename = GetTempFileName(uploadMetadata.UploadUid, Convert.ToUInt32(uploadMetadata.ChunkIndex));
var filePath = Path.Combine(_rootDir, filename);
_logger.LogDebug("Creating the file {0} on local storage.", filename);
using (var stream = new FileStream(filePath, FileMode.Create))
{
await file.CopyToAsync(stream);
_logger.LogDebug("Uploaded chunks to the file {0} local storage.", filename);
}
}
public override async Task FinalizeUploadAsync(Document document, ChunkMetaData uploadMetadata)
{
for (uint i = 0; i < document.ChunkCount; i++)
{
string tempFilename = GetTempFileName(uploadMetadata.UploadUid, i);
string fileName = GetFileName(document.ID, i);
var fileRef = _container.GetBlockBlobReference(tempFilename);
var newFileRef = _container.GetBlockBlobReference(fileName);
await newFileRef.StartCopyAsync(fileRef);
_logger.LogDebug(string.Format("File {0} renamed to {1}", tempFilename, fileName));
await fileRef.DeleteAsync();
_logger.LogDebug(string.Format("Deleteing temp file {0}", tempFilename));
}
}
public abstract Task FinalizeUploadAsync(Document document, ChunkMetaData metadata);
public abstract Task WriteToStreamAsync(IFormFile file, ChunkMetaData uploadMetadata);
/// <summary>
/// Initiates the document object to be saved in the database
/// </summary>
/// <returns></returns>
public virtual async Task <Document> SaveDocumentToDatabaseAsync(ModelDataContext dataContext, ChunkMetaData metadata, Guid itemID, Guid uploadByID)
{
var doc = new Document
{
Name = metadata.FileName,
FileName = metadata.FileName,
MimeType = FileEx.GetMimeTypeByExtension(metadata.FileName),
ItemID = itemID,
Length = metadata.TotalFileSize,
UploadedByID = uploadByID,
ChunkCount = metadata.TotalChunks
};
dataContext.Documents.Add(doc);
await dataContext.SaveChangesAsync();
_logger.LogInformation($"Saved the document metadata to the database for { metadata.FileName }, ID: { doc.ID.ToString("D") }.");
return(doc);
}
