public void Remove(FileInfoEx fileInfoEx)
{
try
{
string directoryPath = ConfigurationSettings.AppSettings["FileTransferPath"];
DirectoryInfo directoryInfo;
if (!Directory.Exists(directoryPath))
{
directoryInfo = Directory.CreateDirectory(directoryPath);
}
else
{
directoryInfo = new DirectoryInfo(directoryPath);
}
string filePath = Path.Combine(directoryInfo.FullName, fileInfoEx.FileNameOnServer);
File.Delete(filePath);
using (FileTransferContext context = new FileTransferContext())
{
FileInfoEx file =
context.Files.FirstOrDefault(f => f.FileNameOnServer.Equals(fileInfoEx.FileNameOnServer));
if (file != null)
{
context.Files.Remove(file);
context.SaveChanges();
}
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
private static void SaveFileInfoToDataBase(FileDataUpload file)
{
try
{
FileInfoEx fileInfoEx = new FileInfoEx
{
FileNameOnServer = file.FileId,
OriginalFileName = file.FileName,
Author = file.Author,
DateUpload = file.DateUpload,
Description = file.Description
};
using (FileTransferContext context = new FileTransferContext())
{
context.Files.Add(fileInfoEx);
context.SaveChanges();
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
public FileDataDownload Download(FileInfoEx fileInfoEx)
{
FileDataDownload fileDataDownload = null;
try
{
Stream stream;
bool fileIsFound = _filesDownloadStreams.TryGetValue(fileInfoEx.FileNameOnServer, out stream);
if (fileIsFound)
{
byte[] buffer = new byte[BufferSize];
int readBytes = stream.Read(buffer, 0, buffer.Length);
if (readBytes == 0)
{
stream.Close();
_filesDownloadStreams.TryRemove(fileInfoEx.FileNameOnServer, out stream);
fileDataDownload = new FileDataDownload
{
IsLastPart = true
};
}
else
{
byte[] data = new byte[readBytes];
Array.Copy(buffer, data, readBytes);
fileDataDownload = new FileDataDownload
{
Data = data,
IsLastPart = false
};
}
}
else
{
string directoryPath = ConfigurationSettings.AppSettings["FileTransferPath"];
DirectoryInfo directoryInfo;
if (!Directory.Exists(directoryPath))
{
directoryInfo = Directory.CreateDirectory(directoryPath);
}
else
{
directoryInfo = new DirectoryInfo(directoryPath);
}
string filePath = Path.Combine(directoryInfo.FullName, fileInfoEx.FileNameOnServer);
if (File.Exists(filePath))
{
FileStream fsSource = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read);
_filesDownloadStreams.TryAdd(fileInfoEx.FileNameOnServer, fsSource);
byte[] buffer = new byte[BufferSize];
int readBytes = fsSource.Read(buffer, 0, buffer.Length);
if (readBytes == 0)
{
fsSource.Close();
_filesDownloadStreams.TryRemove(fileInfoEx.FileNameOnServer, out stream);
fileDataDownload = new FileDataDownload
{
IsLastPart = true
};
}
else
{
byte[] data = new byte[readBytes];
Array.Copy(buffer, data, readBytes);
fileDataDownload = new FileDataDownload
{
Data = data,
IsLastPart = false
};
}
}
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
return(fileDataDownload);
}
