/// <summary>
/// Read the message header structure and cache the meta data for finding the key fields for decoding messages.
/// </summary>
/// <param name="headerStructure"> for the meta data describing the message header. </param>
public OtfHeaderDecoder(HeaderStructure headerStructure)
{
_size = headerStructure.Tokens[0].Size;
foreach (Token token in headerStructure.Tokens)
{
switch (token.Name)
{
case HeaderStructure.BlockLength:
_blockLengthOffset = token.Offset;
_blockLengthType = token.Encoding.PrimitiveType;
_blockLengthByteOrder = token.Encoding.ByteOrder;
break;
case HeaderStructure.TemplateId:
_templateIdOffset = token.Offset;
_templateIdType = token.Encoding.PrimitiveType;
_templateIdByteOrder = token.Encoding.ByteOrder;
break;
case HeaderStructure.SchemaId:
_schemaIdOffset = token.Offset;
_schemaIdType = token.Encoding.PrimitiveType;
_schemaIdByteOrder = token.Encoding.ByteOrder;
break;
case HeaderStructure.SchemaVersion:
_schemaVersionOffset = token.Offset;
_schemaVersionType = token.Encoding.PrimitiveType;
_schemaVersionByteOrder = token.Encoding.ByteOrder;
break;
}
}
}
/// <summary>
/// Read the message header structure and cache the meta data for finding the key fields for decoding messages.
/// </summary>
/// <param name="headerStructure"> for the meta data describing the message header. </param>
public OtfHeaderDecoder(HeaderStructure headerStructure)
{
_size = headerStructure.Tokens[0].Size;
foreach (Token token in headerStructure.Tokens)
{
switch (token.Name)
{
case HeaderStructure.BlockLength:
_blockLengthOffset = token.Offset;
_blockLengthType = token.Encoding.PrimitiveType;
_blockLengthByteOrder = token.Encoding.ByteOrder;
break;
case HeaderStructure.TemplateId:
_templateIdOffset = token.Offset;
_templateIdType = token.Encoding.PrimitiveType;
_templateIdByteOrder = token.Encoding.ByteOrder;
break;
case HeaderStructure.SchemaId:
_schemaIdOffset = token.Offset;
_schemaIdType = token.Encoding.PrimitiveType;
_schemaIdByteOrder = token.Encoding.ByteOrder;
break;
case HeaderStructure.SchemaVersion:
_schemaVersionOffset = token.Offset;
_schemaVersionType = token.Encoding.PrimitiveType;
_schemaVersionByteOrder = token.Encoding.ByteOrder;
break;
}
}
}
private static bool IsHeaderStructureOk(HeaderStructure headerStructure, byte[] frame)
{
return(headerStructure.CommandType.GetType().IsEnum&& headerStructure.FlagType.GetType().IsEnum);
}
private static bool HandleRequest(byte[] frame, NetworkStream networkStream)
{
try
{
IFrameHandler frameHandler = new FrameHandler(networkStream);
ICodification <HeaderStructure> header = new Header();
var logManager = new SenderService();
int logSize = 0;
HeaderStructure headerStructure = header.Decode(frame);
if (!IsHeaderStructureOk(headerStructure, frame))
{
return(true);
}
var command = headerStructure.CommandType;
switch (command)
{
case CommandType.AG:
ServerGenreManager.UploadGenre(frame);
ServerResponse(frameHandler, "Genre Uploaded");
logSize = 2;
break;
case CommandType.BG:
ServerGenreManager.DeleteGenre(frame);
ServerResponse(frameHandler, "Genre Deleted");
logSize = 1;
break;
case CommandType.MG:
ServerGenreManager.ModifyGenre(frame);
ServerResponse(frameHandler, "Genre modified");
logSize = 3;
break;
case CommandType.AP:
ServerMovieManager.Upload(frame);
ServerResponse(frameHandler, "Movie uploaded");
logSize = 3;
break;
case CommandType.BP:
ServerMovieManager.Delete(frame);
ServerResponse(frameHandler, "Movie deleted");
logSize = 1;
break;
case CommandType.MP:
ServerMovieManager.Modify(frame);
ServerResponse(frameHandler, "Movie updated");
logSize = 4;
break;
case CommandType.AS:
ServerAsociationManager.AsociateGenreToMovie(frame);
ServerResponse(frameHandler, "Movie and genre associated");
logSize = 2;
break;
case CommandType.DS:
ServerAsociationManager.DeAsociateGenreToMovie(frame);
ServerResponse(frameHandler, "Movie and genre deassociated");
logSize = 2;
break;
case CommandType.AD:
ServerDirectorManager.UploadDirector(frame);
ServerResponse(frameHandler, "Director uploaded");
logSize = 4;
break;
case CommandType.BD:
ServerDirectorManager.DeleteDirector(frame);
ServerResponse(frameHandler, "Director deleted");
logSize = 1;
break;
case CommandType.MD:
ServerDirectorManager.ModifyDirector(frame);
ServerResponse(frameHandler, "Director updated");
logSize = 5;
break;
case CommandType.SA:
string fileName = ServerMovieManager.SaveFile(frame, networkStream);
ServerResponse(frameHandler, "Sending file...@" + fileName);
ServerMovieManager.ReceiveFile(networkStream);
logSize = 2;
ServerResponse(frameHandler, "File sent");
break;
case CommandType.DM:
ServerAsociationManager.AsociateDirectorToMovie(frame);
ServerResponse(frameHandler, "Director and movie asociated");
logSize = 2;
break;
case CommandType.DD:
ServerAsociationManager.DeAsociateDirectorToMovie(frame);
ServerResponse(frameHandler, "Director and movie deasociated");
logSize = 2;
break;
case CommandType.FF:
ServerResponse(frameHandler, "Goodbye");
logSize = 1;
return(false);
default:
ServerResponse(frameHandler, "Formato de trama invalido vuelva a enviar");
break;
}
logManager.CreateLog(command.ToString().ToUpper(), frame, logSize);
return(true);
}
catch (Exception ex)
{
var logManager = new SenderService();
logManager.CreateLog("EX", frame, 1);
if (ex is FormatException || ex is ArgumentException)
{
IFrameHandler frameHandler = new FrameHandler(networkStream);
ServerResponse(frameHandler, "La trama recibida fue invalida");
}
else if (ex is IndexOutOfRangeException)
{
IFrameHandler frameHandler = new FrameHandler(networkStream);
ServerResponse(frameHandler, "El objeto solicitado en el Data esta mal construido");
}
else if (ex is BussinesLogicException || ex is AsociatedClassException)
{
IFrameHandler frameHandler = new FrameHandler(networkStream);
ServerResponse(frameHandler, ex.Message);
}
else if (ex is DataBaseException || ex is EntityBeingModifiedException)
{
IFrameHandler frameHandler = new FrameHandler(networkStream);
ServerResponse(frameHandler, ex.Message);
}
else
{
IFrameHandler frameHandler = new FrameHandler(networkStream);
ServerResponse(frameHandler, "Ha ocurrido un error inesperado vuelva a mandar su trama");
}
return(true);
}
}
