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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/**
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* Copyright (c) 2013-2014 Regents of the University of California.
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*
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* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
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*
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* ndn-cxx library is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later version.
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*
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* ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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*
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* You should have received copies of the GNU General Public License and GNU Lesser
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* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
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*
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* @author Alexander Afanasyev <http://lasr.cs.ucla.edu/afanasyev/index.html>
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*/
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// correct way to include ndn-cxx headers
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// #include <ndn-cxx/face.hpp>
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// #include <ndn-cxx/security/key-chain.hpp>
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#include "face.hpp"
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#include "security/key-chain.hpp"
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#include <sstream>
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// Enclosing code in ndn simplifies coding (can also use `using namespace ndn`)
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namespace ndn {
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// Additional nested namespace could be used to prevent/limit name contentions
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namespace examples {
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class Producer
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{
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public:
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Producer()
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: m_counter(0)
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{}
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void
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onInterest(const Name& name, const Interest& interest)
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{
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std::cout << "<< I: " << interest.toUri() << std::endl;
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// Create new name, based on Interest's name
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Name dataName(interest.getName());
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std::stringstream ss;
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ss << m_counter;
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std::string content = ss.str();
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// Create Data packet
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Data data;
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data.setName(dataName);
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data.setFreshnessPeriod(time::seconds(10));
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data.setContent(reinterpret_cast<const uint8_t*>(content.c_str()), content.size());
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// Sign Data packet with default identity
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m_keyChain.sign(data);
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// Return Data packet to the requester
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std::cout << ">> D: " << data << std::endl;
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m_face.put(data);
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}
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void
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onRegisterFailed(const std::string& reason)
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{
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std::cerr << "ERROR: Failed to register prefix in local hub's daemon (" << reason << ")"
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<< std::endl;
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m_face.shutdown();
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}
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void
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run()
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{
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m_face.setInterestFilter("/example/testApp",
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bind(&Producer::onInterest, this, _1, _2),
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RegisterPrefixSuccessCallback(),
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bind(&Producer::onRegisterFailed, this, _2));
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m_face.processEvents();
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}
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private:
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Face m_face;
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KeyChain m_keyChain;
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int m_counter;
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};
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} // namespace examples
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} // namespace ndn
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int
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main(int argc, char** argv)
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{
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try {
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ndn::examples::Producer producer;
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producer.run();
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}
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catch (std::exception& e) {
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std::cerr << "ERROR: " << e.what() << std::endl;
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}
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return 0;
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}
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