public RemoteFileInfo DownloadFile(ServerFileInfo request)
{
Stream stream = null;
long length = 0;
// get some info about the input file
if (!request.IsFromDB)
{
string filePath = Path.Combine(AppDirectories.DownloadFolder, request.FileName);
var fileInfo = new FileInfo(filePath);
length = fileInfo.Length;
// report start
Trace.WriteLineIf(ZeroCommonClasses.Environment.Config.LogLevel.TraceVerbose, "Sending stream " + request.FileName + " to client");
Trace.WriteLineIf(ZeroCommonClasses.Environment.Config.LogLevel.TraceVerbose,"Size " + fileInfo.Length);
// check if exists
if (!fileInfo.Exists)
{
Trace.WriteLineIf(ZeroCommonClasses.Environment.Config.LogLevel.TraceError, "File not found");
throw new FileNotFoundException("File not found", request.FileName);
}
// open stream
stream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
}
else
{
using (var ent = new CommonEntitiesManager())
{
Pack P = ent.Packs.FirstOrDefault(p => p.Code == request.Code);
if (P != null)
{
Trace.WriteLineIf(ZeroCommonClasses.Environment.Config.LogLevel.TraceVerbose, "Sending pack " + request.Code + " to client","Verbose");
stream = new MemoryStream(P.Data);
}
else
{
Trace.WriteLineIf(ZeroCommonClasses.Environment.Config.LogLevel.TraceWarning, "Pack " + request.Code + " Not found", "Verbose");
}
}
}
// return result
var result = new RemoteFileInfo();
result.FileName = request.FileName;
result.Length = length;
result.FileByteStream = stream;
return result;
// after returning to the client download starts. Stream remains open and on server and the client reads it, although the execution of this method is completed.
}
public ServerFileInfo UploadFile(RemoteFileInfo request)
{
// report start
Trace.WriteLineIf(ZeroCommonClasses.Environment.Config.LogLevel.TraceVerbose,"Start uploading " + request.FileName, "Verbose");
Trace.WriteLineIf(ZeroCommonClasses.Environment.Config.LogLevel.TraceVerbose, "Size " + request.Length, "Verbose");
string filePath = Path.Combine(AppDirectories.UploadFolder, Path.GetFileName(request.FileName));
if (File.Exists(filePath)) File.Delete(filePath);
ServerFileInfo ret = null;
int chunkSize = 1024 * 4;
var buffer = new byte[chunkSize];
using (var writeStream = new FileStream(filePath, FileMode.CreateNew, FileAccess.Write))
{
try
{
do
{
// read bytes from input stream
int bytesRead = request.FileByteStream.Read(buffer, 0, chunkSize);
if (bytesRead == 0) break;
// write bytes to output stream
writeStream.Write(buffer, 0, bytesRead);
} while (true);
// report end
Trace.WriteLineIf(ZeroCommonClasses.Environment.Config.LogLevel.TraceVerbose, "Done!", "Verbose");
ret = new ServerFileInfo {FileName = filePath};
IncomingPackManager.Instance.AddPack(request.ConnectionID, filePath);
return ret;
}
catch (Exception exe)
{
Trace.WriteLineIf(ZeroCommonClasses.Environment.Config.LogLevel.TraceError, exe);
throw;
}
finally
{
writeStream.Close();
}
}
}
private bool GetExistingPacks(SyncStartingEventArgs Config)
{
bool ret = true;
try
{
Config.Notifier.SetProcess("Recibiendo Paquetes de datos");
ZeroResponse<Dictionary<int, int>> res = Config.SyncService.GetExistingPacks(CurrentConnectionID);
if (res.Result.Count > 0)
{
foreach (var item in res.Result)
{
//esto es solo una validacion tonta de que los primeros caracteres sean un numero,
//el mismo tiene que pertenecer a los modulos existentes, sino se pasa al siguiente archivo
ZeroModule Mod = Config.Modules.FirstOrDefault(m => m.ModuleCode == item.Value);
if (Mod != null)
{
var aFile =
new ServerFileInfo
{
Code = item.Key,
IsFromDB = true
};
RemoteFileInfo inf = Config.FileTransferService.DownloadFile(aFile);
string packPath = Path.Combine(Mod.WorkingDirectoryIn, string.Format(PackManager.kPackNameFromat, item.Value, item.Key, DateTime.Now.ToString("yyyyMMddhhmmss")));
ret = DownloadFile(Config, packPath, inf);
if (ret)
{
Config.SyncService.MarkPackReceived(CurrentConnectionID, item.Key);
Mod.NewPackReceived(packPath);
}
}
}
}
else
ret = true;
}
catch (Exception ex)
{
ret = false;
Config.Notifier.SetUserMessage(false, "Error al enviar archivos: " + ex);
}
return ret;
}
