nemimpl.cc

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/*
 * Copyright (c) 2013-2015,2017 - Adjacent Link LLC, Bridgewater,
 * New Jersey
 * Copyright (c) 2011 - DRS CenGen, LLC, Columbia, Maryland
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
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 *   contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 */

#include "nemimpl.h"
#include "logservice.h"
#include "emane/configureexception.h"
#include "emane/startexception.h"

#include <sstream>
#include <iomanip>

EMANE::Application::NEMImpl::NEMImpl(NEMId id,
                                     std::unique_ptr<NEMLayerStack> & pNEMLayerStack,
                                     bool bExternalTransport):
  pNEMLayerStack_(std::move(pNEMLayerStack)),
  id_{id},
  bExternalTransport_{bExternalTransport},
  NEMOTAAdapter_{id},
  NEMNetworkAdapter_{id}
{
  pNEMLayerStack_->connectLayers(&NEMNetworkAdapter_,&NEMOTAAdapter_);
}

EMANE::Application::NEMImpl::~NEMImpl(){}

void EMANE::Application::NEMImpl::initialize(Registrar & registrar)
{
  if(bExternalTransport_)
    {
      auto & configRegistrar = registrar.configurationRegistrar();

      configRegistrar.registerNonNumeric<INETAddr>("platformendpoint",
                                                   ConfigurationProperties::REQUIRED,
                                                   {},
                                                   "IPv4 or IPv6 NEM Platform Service endpoint.");

      configRegistrar.registerNonNumeric<INETAddr>("transportendpoint",
                                                   ConfigurationProperties::REQUIRED,
                                                   {},
                                                   "IPv4 or IPv6 Transport endpoint.");

      configRegistrar.registerNonNumeric<std::string>("protocol",
                                                      EMANE::ConfigurationProperties::DEFAULT,
                                                      {"udp"},
                                                      "Defines the protocl used for communictation:"
                                                      " udp or tcp.",
                                                      1,
                                                      1,
                                                      "^(udp|tcp)$");
    }

  pNEMLayerStack_->initialize(registrar);
}

void EMANE::Application::NEMImpl::configure(const ConfigurationUpdate & update)
{
  for(const auto & item : update)
    {
      if(item.first == "platformendpoint")
        {
          platformEndpointAddr_ = item.second[0].asINETAddr();

          LOGGER_STANDARD_LOGGING(*LogServiceSingleton::instance(),
                                  INFO_LEVEL,
                                  "NEM  %03hu NEMImpl::configure platformendpoint: %s",
                                  id_,
                                  platformEndpointAddr_.str().c_str());

        }
      else if(item.first == "transportendpoint")
        {
          transportEndpointAddr_ = item.second[0].asINETAddr();

          LOGGER_STANDARD_LOGGING(*LogServiceSingleton::instance(),
                                  INFO_LEVEL,
                                  "NEM  %03hu NEMImpl::configure transportendpoint: %s",
                                  id_,
                                  transportEndpointAddr_.str().c_str());
        }
      else if(item.first == "protocol")
        {
          std::string sProtocol{item.second[0].asString()};

          protocol_ = sProtocol == "udp" ?
            NEMNetworkAdapter::Protocol::PROTOCOL_UDP :
            NEMNetworkAdapter::Protocol::PROTOCOL_TCP_SERVER;

          LOGGER_STANDARD_LOGGING(*LogServiceSingleton::instance(),
                                  INFO_LEVEL,
                                  "NEM  %03hu NEMImpl::configure %s: %s",
                                  id_,
                                  item.first.c_str(),
                                  sProtocol.c_str());
        }
      else
        {
          throw makeException<ConfigureException>("NEMImpl::configure: "
                                                  "Unexpected configuration item %s",
                                                  item.first.c_str());
        }
    }
}

void EMANE::Application::NEMImpl::start()
{
  NEMOTAAdapter_.open();

  if(bExternalTransport_)
    {
      try
        {
          NEMNetworkAdapter_.open(platformEndpointAddr_,
                                  transportEndpointAddr_,
                                  protocol_);
        }
      catch(NetworkAdapterException & exp)
        {
          throw StartException(exp.what());
        }
    }

  pNEMLayerStack_->start();
}

void EMANE::Application::NEMImpl::postStart()
{
  pNEMLayerStack_->postStart();
}

void EMANE::Application::NEMImpl::stop()
{
  if(bExternalTransport_)
    {
      NEMNetworkAdapter_.close();
    }

  NEMOTAAdapter_.close();

  pNEMLayerStack_->stop();
}

void EMANE::Application::NEMImpl::destroy()
  throw()
{
  pNEMLayerStack_->destroy();
}

EMANE::NEMId EMANE::Application::NEMImpl::getNEMId() const
{
  return id_;
}