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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2013-2014 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_MANAGEMENT_NFD_CONTROLLER_HPP
#define NDN_MANAGEMENT_NFD_CONTROLLER_HPP
#include "nfd-control-command.hpp"
#include "../face.hpp"
#include "../security/key-chain.hpp"
namespace ndn {
namespace nfd {
/**
* \defgroup management Management
* \brief Classes and data structures to manage NDN forwarder
*/
/**
* \ingroup management
* \brief NFD Management protocol - ControlCommand client
*/
class Controller : noncopyable
{
public:
/** \brief a callback on command success
*/
typedef function<void(const ControlParameters&)> CommandSucceedCallback;
/** \brief a callback on command failure
*/
typedef function<void(uint32_t/*code*/,const std::string&/*reason*/)> CommandFailCallback;
/** \brief a function to sign the request Interest
*/
typedef function<void(Interest&)> Sign;
/** \brief construct a Controller that uses face for transport,
* and has an internal default KeyChain to sign commands
*/
explicit
Controller(Face& face);
/** \brief construct a Controller that uses face for transport,
* and uses the passed KeyChain to sign commands
*/
Controller(Face& face, KeyChain& keyChain);
/** \brief start command execution
*/
template<typename Command>
void
start(const ControlParameters& parameters,
const CommandSucceedCallback& onSuccess,
const CommandFailCallback& onFailure,
const time::milliseconds& timeout = getDefaultCommandTimeout())
{
start<Command>(parameters, onSuccess, onFailure,
bind(&KeyChain::sign<Interest>, &m_keyChain, _1),
timeout);
}
/** \brief start command execution
* \param certificate the certificate used to sign request Interests
* \deprecated passing IdentityCertificate() empty certificate as fourth argument
* is deprecated, use four-parameter overload instead
*/
template<typename Command>
void
start(const ControlParameters& parameters,
const CommandSucceedCallback& onSuccess,
const CommandFailCallback& onFailure,
const IdentityCertificate& certificate,
const time::milliseconds& timeout = getDefaultCommandTimeout())
{
if (certificate.getName().empty()) { // deprecated usage
start<Command>(parameters, onSuccess, onFailure, timeout);
return;
}
start<Command>(parameters, onSuccess, onFailure,
bind(static_cast<void(KeyChain::*)(Interest&,const Name&)>(&KeyChain::sign<Interest>),
&m_keyChain, _1, cref(certificate.getName())),
timeout);
}
/** \brief start command execution
* \param identity the identity used to sign request Interests
*/
template<typename Command>
void
start(const ControlParameters& parameters,
const CommandSucceedCallback& onSuccess,
const CommandFailCallback& onFailure,
const Name& identity,
const time::milliseconds& timeout = getDefaultCommandTimeout())
{
start<Command>(parameters, onSuccess, onFailure,
bind(&KeyChain::signByIdentity<Interest>, &m_keyChain, _1, cref(identity)),
timeout);
}
/** \brief start command execution
* \param sign a function to sign request Interests
*/
template<typename Command>
void
start(const ControlParameters& parameters,
const CommandSucceedCallback& onSuccess,
const CommandFailCallback& onFailure,
const Sign& sign,
const time::milliseconds& timeout = getDefaultCommandTimeout())
{
shared_ptr<ControlCommand> command = make_shared<Command>();
this->startCommand(command, parameters, onSuccess, onFailure, sign, timeout);
}
private:
void
startCommand(const shared_ptr<ControlCommand>& command,
const ControlParameters& parameters,
const CommandSucceedCallback& onSuccess,
const CommandFailCallback& onFailure,
const Sign& sign,
const time::milliseconds& timeout);
void
processCommandResponse(const Data& data,
const shared_ptr<ControlCommand>& command,
const CommandSucceedCallback& onSuccess,
const CommandFailCallback& onFailure);
public:
static time::milliseconds
getDefaultCommandTimeout()
{
return time::milliseconds(10000);
}
protected:
Face& m_face;
shared_ptr<KeyChain> m_internalKeyChain;
KeyChain& m_keyChain;
};
} // namespace nfd
} // namespace ndn
#endif // NDN_MANAGEMENT_NFD_CONTROLLER_HPP