link.hpp

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

#include <ndn-cpp/data.hpp>
#include <ndn-cpp/delegation-set.hpp>

namespace ndn {

class Link : public Data {
public:
  Link()
  {
    getMetaInfo().setType(ndn_ContentType_LINK);
  }

  Link(const Name& name)
  : Data(name)
  {
    getMetaInfo().setType(ndn_ContentType_LINK);
  }

  Link(const Data& data);

  virtual void
  wireDecode
    (const Blob& input,
     WireFormat& wireFormat = *WireFormat::getDefaultWireFormat());

  Link&
  addDelegation
    (int preference, const Name& name,
     WireFormat& wireFormat = *WireFormat::getDefaultWireFormat())
  {
    delegations_.add(preference, name);
    encodeContent(wireFormat);

    return *this;
  }

  bool
  removeDelegation
    (const Name& name,
     WireFormat& wireFormat = *WireFormat::getDefaultWireFormat())
  {
    bool wasRemoved = delegations_.remove(name);
    if (wasRemoved)
      encodeContent(wireFormat);

    return wasRemoved;
  }

  const DelegationSet&
  getDelegations() const { return delegations_; }

private:
  void
  encodeContent(WireFormat& wireFormat)
  {
    setContent(delegations_.wireEncode(wireFormat));
    getMetaInfo().setType(ndn_ContentType_LINK);
  }

  DelegationSet delegations_;
};

}

#endif