interest-filter-record.hpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013-2019 Regents of the University of California.
 *
 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
 *
 * ndn-cxx library 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.
 *
 * ndn-cxx library 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 copies of the GNU General Public License and GNU Lesser
 * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
 */
 
#ifndef NDN_IMPL_INTEREST_FILTER_RECORD_HPP
#define NDN_IMPL_INTEREST_FILTER_RECORD_HPP
 
#include "ndn-cxx/impl/pending-interest.hpp"
 
namespace ndn {
 
class InterestFilterId;
 
static_assert(sizeof(const InterestFilterId*) == sizeof(RecordId), "");
 
class InterestFilterRecord : public RecordBase<InterestFilterRecord>
{
public:
  InterestFilterRecord(const InterestFilter& filter,
                       const InterestCallback& interestCallback)
    : m_filter(filter)
    , m_interestCallback(interestCallback)
  {
  }
 
  const InterestFilter&
  getFilter() const
  {
    return m_filter;
  }
 
  bool
  doesMatch(const PendingInterest& entry) const
  {
    return (entry.getOrigin() == PendingInterestOrigin::FORWARDER || m_filter.allowsLoopback()) &&
            m_filter.doesMatch(entry.getInterest()->getName());
  }
 
  void
  invokeInterestCallback(const Interest& interest) const
  {
    if (m_interestCallback != nullptr) {
      m_interestCallback(m_filter, interest);
    }
  }
 
private:
  InterestFilter m_filter;
  InterestCallback m_interestCallback;
};
 
} // namespace ndn
 
#endif // NDN_IMPL_INTEREST_FILTER_RECORD_HPP