void
FaceCreateCommand::applyDefaultsToRequest(ControlParameters& parameters) const
{
  if (!parameters.hasFacePersistency()) {
    parameters.setFacePersistency(FacePersistency::FACE_PERSISTENCY_PERSISTENT);
  }
}
Пример #2
0
void
FaceManager::updateFace(const Interest& interest,
                        const ControlParameters& parameters,
                        const ndn::mgmt::CommandContinuation& done)
{
  FaceId faceId = parameters.getFaceId();
  if (faceId == 0) { // Self-update
    auto incomingFaceIdTag = interest.getTag<lp::IncomingFaceIdTag>();
    if (incomingFaceIdTag == nullptr) {
      NFD_LOG_TRACE("unable to determine face for self-update");
      done(ControlResponse(404, "No FaceId specified and IncomingFaceId not available"));
      return;
    }
    faceId = *incomingFaceIdTag;
  }

  Face* face = m_faceTable.get(faceId);
  if (face == nullptr) {
    NFD_LOG_TRACE("invalid face specified");
    done(ControlResponse(404, "Specified face does not exist"));
    return;
  }

  // Verify validity of requested changes
  ControlParameters response;
  bool areParamsValid = true;

  if (parameters.hasFlagBit(ndn::nfd::BIT_LOCAL_FIELDS_ENABLED) &&
      parameters.getFlagBit(ndn::nfd::BIT_LOCAL_FIELDS_ENABLED) &&
      face->getScope() != ndn::nfd::FACE_SCOPE_LOCAL) {
    NFD_LOG_TRACE("received request to enable local fields on non-local face");
    areParamsValid = false;
    response.setFlagBit(ndn::nfd::BIT_LOCAL_FIELDS_ENABLED,
                        parameters.getFlagBit(ndn::nfd::BIT_LOCAL_FIELDS_ENABLED));
  }

  // check whether the requested FacePersistency change is valid if it's present
  if (parameters.hasFacePersistency()) {
    auto persistency = parameters.getFacePersistency();
    if (!face->getTransport()->canChangePersistencyTo(persistency)) {
      NFD_LOG_TRACE("cannot change face persistency to " << persistency);
      areParamsValid = false;
      response.setFacePersistency(persistency);
    }
  }

  if (!areParamsValid) {
    done(ControlResponse(409, "Invalid properties specified").setBody(response.wireEncode()));
    return;
  }

  // All specified properties are valid, so make changes
  if (parameters.hasFacePersistency()) {
    face->setPersistency(parameters.getFacePersistency());
  }
  updateLinkServiceOptions(*face, parameters);

  // Prepare and send ControlResponse
  response = makeUpdateFaceResponse(*face);
  done(ControlResponse(200, "OK").setBody(response.wireEncode()));
}