// src/backend/policies_gatekeeper.cc - Copyright 2005, 2006, University
//               of Padova, dept. of Pure and Applied
//               Mathematics
//
// This file is part of SGPEMv2.
//
// This is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// SGPEMv2 is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with SGPEMv2; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

#include "config.h"

#include "serializers_gatekeeper.hh"
#include "serializer.hh"

// Include full template definition only in implementation files:
#include "singleton.tcc"

#include <algorithm>
#include <cassert>

using std::vector;
using std::find;
using std::runtime_error;
using namespace sgpem;

// Explicit template instantiation to allow to export symbols from the DSO.
template class SG_DLLEXPORT Singleton<SerializersGatekeeper>;

typedef vector<Serializer*>::iterator SerializerIterator;

vector<Serializer*>
SerializersGatekeeper::get_registered() const
{
  return _registered;
}

void
SerializersGatekeeper::register_serializer(Serializer* serializer)
{
  assert(serializer != NULL);

  SerializerIterator end = _registered.end();

  if (find(_registered.begin(), end, serializer) == end)
    _registered.push_back(serializer);
}

void
SerializersGatekeeper::unregister_serializer(Serializer* serializer)
{
  assert(serializer != NULL);

  SerializerIterator end = _registered.end();
  SerializerIterator pos = find(_registered.begin(), end, serializer);

  if (pos != end)
  {
    _registered.erase(pos);
  }
}



SerializersGatekeeper::SerializersGatekeeper()
{}