meta-info.hpp

/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
#ifndef NDN_META_INFO_HPP
#define NDN_META_INFO_HPP

#include <math.h>
#include "name.hpp"
#include "c/data-types.h"

struct ndn_MetaInfo;

namespace ndn {

class MetaInfo {
public:
  MetaInfo()
  : changeCount_(0)
  {
    timestampMilliseconds_ = -1;
    type_ = ndn_ContentType_BLOB;
    freshnessPeriod_ = -1;
  }

  void
  get(struct ndn_MetaInfo& metaInfoStruct) const;

  void
  set(const struct ndn_MetaInfo& metaInfoStruct);

  MillisecondsSince1970
  DEPRECATED_IN_NDN_CPP getTimestampMilliseconds() const
  {
    return timestampMilliseconds_;
  }

  ndn_ContentType
  getType() const { return type_; }

  Milliseconds
  getFreshnessPeriod() const { return freshnessPeriod_; }

  int
  DEPRECATED_IN_NDN_CPP getFreshnessSeconds() const
  {
    return freshnessPeriod_ < 0 ? -1 : (int)round(freshnessPeriod_ / 1000.0);
  }

  const Name::Component&
  getFinalBlockId() const { return finalBlockId_; }

  const Name::Component&
  DEPRECATED_IN_NDN_CPP getFinalBlockID() const { return getFinalBlockId(); }

  void
  DEPRECATED_IN_NDN_CPP setTimestampMilliseconds
    (MillisecondsSince1970 timestampMilliseconds)
  {
    timestampMilliseconds_ = timestampMilliseconds;
    ++changeCount_;
  }

  void
  setType(ndn_ContentType type)
  {
    type_ = type;
    ++changeCount_;
  }

  void
  setFreshnessPeriod(Milliseconds freshnessPeriod)
  {
    freshnessPeriod_ = freshnessPeriod;
    ++changeCount_;
  }

  void
  DEPRECATED_IN_NDN_CPP setFreshnessSeconds(int freshnessSeconds)
  {
    setFreshnessPeriod(freshnessSeconds < 0 ? -1.0 : (double)freshnessSeconds * 1000.0);
  }

  void
  setFinalBlockId(const Name::Component& finalBlockId)
  {
    finalBlockId_ = finalBlockId;
    ++changeCount_;
  }

  void
  DEPRECATED_IN_NDN_CPP setFinalBlockID(const Name::Component& finalBlockId)
  {
    finalBlockId_ = finalBlockId;
    ++changeCount_;
  }

  uint64_t
  getChangeCount() const { return changeCount_; }

private:
  MillisecondsSince1970 timestampMilliseconds_; 
  ndn_ContentType type_;         
  Milliseconds freshnessPeriod_; 
  Name::Component finalBlockId_; 
  uint64_t changeCount_;
};

}

#endif