comm/transport/LiteTransport.cpp

   1 // ANNA - Anna is Not Nothingness Anymore                                                         //
   2 //                                                                                                //
   3 // (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
   4 //                                                                                                //
   5 // See project site at http://redmine.teslayout.com/projects/anna-suite                           //
   6 // See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //
   7
   8
   9 #include <anna/config/defines.hpp>
  10
  11 #include <anna/comm/LiteTransport.hpp>
  12 #include <anna/comm/Message.hpp>
  13 #include <anna/comm/functions.hpp>
  14
  15 using namespace anna;
  16
  17 comm::TransportFactoryImpl <comm::LiteTransport> comm::LiteTransport::st_transportFactory;
  18
  19 comm::LiteTransport::LiteTransport() :
  20   comm::Transport() {
  21   setInputMessage(new Message());
  22 }
  23
  24 comm::LiteTransport::~LiteTransport() {
  25   delete getInputMessage();
  26 }
  27
  28 int comm::LiteTransport::calculeSize(const DataBlock& dataBlock)
  29 throw(RuntimeException) {
  30   const char* buffer = dataBlock.getData();
  31   return (dataBlock.getSize() >= headerSize) ? functions::decodeShort(buffer) + headerSize : -1;
  32 }
  33
  34 const comm::Message* comm::LiteTransport::decode(const DataBlock& message)
  35 throw(RuntimeException) {
  36   const int totalSize = message.getSize();
  37
  38   if(totalSize < headerSize)
  39     throw RuntimeException("Invalid message to decode", ANNA_FILE_LOCATION);
  40
  41   const char* buffer = message.getData();
  42   const int bodySize = totalSize - headerSize;
  43
  44   if(bodySize < 0)
  45     throw RuntimeException("Invalid message size to decode", ANNA_FILE_LOCATION);
  46
  47   return getInputMessage()->setBody(buffer + headerSize, bodySize);
  48 }
  49
  50 const DataBlock& comm::LiteTransport::code(comm::Message& message)
  51 throw(RuntimeException) {
  52   char aux [sizeof(int)];
  53   const DataBlock& data = message.code();
  54   a_forCode.clear();
  55   a_forCode.append(functions::codeShort(aux, data.getSize()), headerSize);
  56   return a_forCode += data;
  57 }
  58