public async Task <FileModel> GetFile(string id, FileTypeEnum fileType)
{
try
{
using (var stream = _gridFS.OpenDownloadStream(new ObjectId(id)))
{
FileModel model = new FileModel(stream.FileInfo.Filename);
if (fileType != (FileTypeEnum)stream.FileInfo.Metadata["type"].AsInt32)
{
return(null);
}
using (MemoryStream ms = new MemoryStream())
{
await stream.CopyToAsync(ms);
model.Data = ms.ToArray();
}
stream.Close();
return(model);
}
}
catch
{
return(null);
}
}
public Stream DownloadingFile(string id)
{
IGridFSBucket bucket = GetGridFSBucket();
ObjectId objectId = new ObjectId(id);
GridFSDownloadStream <ObjectId> stream = bucket.OpenDownloadStream(objectId);
return(stream);
}
public Stream GetReader(Uri uri)
{
var id = GetId(uri);
if (id.IsEmpty())
{
throw new FileNotFoundException($"{uri.OriginalString} is not present in database.");
}
return(_fileBucket.OpenDownloadStream(id, new GridFSDownloadOptions {
Seekable = true
}));
}
public Stream OpenRead()
{
return(_bucket.OpenDownloadStream(_fileInfo.Id));
}
