manager-base.hpp

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

#include "name-prefix-list.hpp"
#include "test-access-control.hpp"
#include "lsdb.hpp"
#include "nfd-rib-commands.hpp"
#include "prefix-update-commands.hpp"
#include "logger.hpp"

#include <ndn-cxx/face.hpp>
#include <ndn-cxx/interest.hpp>
#include <ndn-cxx/mgmt/nfd/control-command.hpp>
#include <ndn-cxx/mgmt/dispatcher.hpp>
#include <ndn-cxx/mgmt/nfd/control-parameters.hpp>
#include <ndn-cxx/mgmt/nfd/control-response.hpp>

#include <boost/noncopyable.hpp>

namespace nlsr {

class Lsdb;

namespace update {

enum { PREFIX_FLAG = 1 };

class ManagerBase : boost::noncopyable
{
public:
  class Error : public std::runtime_error
  {
  public:
    explicit
    Error(const std::string& what)
      : std::runtime_error(what)
    {
    }
  };

public:
  ManagerBase(ndn::mgmt::Dispatcher& m_dispatcher,
              const std::string& module);

protected:
  ndn::PartialName
  makeRelPrefix(const std::string& verb) const;

PUBLIC_WITH_TESTS_ELSE_PROTECTED:
  template<typename T>
  bool
  validateParameters(const ndn::mgmt::ControlParameters& parameters)
  {
    const ndn::nfd::ControlParameters* castParams =
    dynamic_cast<const ndn::nfd::ControlParameters*>(&parameters);

    BOOST_ASSERT(castParams != nullptr);
    T command;
    try {
      command.validateRequest(*castParams);
    }
    catch (const ndn::nfd::ControlCommand::ArgumentError& ae) {
      throw ae;
    }
    catch (const std::exception& e) {
      std::cerr << e.what() << std::endl;
      return false;
    }
    return true;
  }

protected:
  ndn::mgmt::Dispatcher& m_dispatcher;

private:
  std::string m_module;
};

class CommandManagerBase: public ManagerBase
{
public:
  CommandManagerBase(ndn::mgmt::Dispatcher& m_dispatcher,
                     NamePrefixList& m_namePrefixList,
                     Lsdb& lsdb,
                     const std::string& module);

  virtual ~CommandManagerBase() {}

  void
  advertiseAndInsertPrefix(const ndn::Name& prefix,
                           const ndn::Interest& interest,
                           const ndn::mgmt::ControlParameters& parameters,
                           const ndn::mgmt::CommandContinuation& done);

  void
  withdrawAndRemovePrefix(const ndn::Name& prefix,
                          const ndn::Interest& interest,
                          const ndn::mgmt::ControlParameters& parameters,
                          const ndn::mgmt::CommandContinuation& done);

  virtual ndn::optional<bool>
  afterAdvertise(const ndn::Name& prefix) { return ndn::nullopt; }

  virtual ndn::optional<bool>
  afterWithdraw(const ndn::Name& prefix) { return ndn::nullopt; }

protected:
  NamePrefixList& m_namePrefixList;
  Lsdb& m_lsdb;
};

} // namespace update
} // namespace nlsr

#endif // NLSR_MANAGER_BASE_HPP