/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2023 Osimis S.A., Belgium
 * Copyright (C) 2024-2026 Orthanc Team SRL, Belgium
 * Copyright (C) 2021-2026 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 **/


#include "../PrecompiledHeaders.h"
#include "DataSourceRequest.h"

#include "../OrthancException.h"

#include <cassert>


namespace Orthanc
{
  DataSourceRequest::~DataSourceRequest()
  {
    for (Content::iterator it = content_.begin(); it != content_.end(); ++it)
    {
      assert(*it != NULL);
      delete *it;
    }
  }


  void DataSourceRequest::Enqueue(IDataIdentifier* id)
  {
    if (id == NULL)
    {
      throw OrthancException(ErrorCode_NullPointer);
    }

    content_.push_back(id);
  }


  IDataIdentifier* DataSourceRequest::Dequeue()
  {
    if (content_.empty())
    {
      throw OrthancException(ErrorCode_BadSequenceOfCalls);
    }
    else
    {
      IDataIdentifier* front = content_.front();
      content_.pop_front();
      return front;
    }
  }
}