private async Task <string> BuildFile(File file, EofMessage eofMessage)
{
try
{
WorkerLog.Instance.Information($"Building {(file.IsNew() ? "" : "delta")} file '{file.Name}'");
var temppath = System.IO.Path.Combine(System.IO.Path.GetTempPath(), System.IO.Path.GetTempFileName());
using var sw = System.IO.File.OpenWrite(temppath);
var toTake = 10;
var toSkip = 0;
while (toSkip < eofMessage.AmountOfChunks)
{
//best way is to get the chunks in chunks. If a file exists out of 1000 * 1Mb files and load that into memory, you are gonna have a bad time
var chunks = await _fileChunkRepository.GetFileChunkData(eofMessage.FileId, toSkip, toTake, _database);
foreach (var chunk in chunks.Data)
{
await sw.WriteAsync(chunk, 0, chunk.Length);
}
toSkip = toTake + 1;
toTake += 10;
}
WorkerLog.Instance.Information($"File built to '{temppath}'");
return(temppath);
}
catch (Exception ex)
{
WorkerLog.Instance.Error(ex, $"Error occured while assembling {(file.IsNew() ? "" : "delta")} file '{file.Name}' to tempfile");
return(null);
}
}
