statisticqueryhandler.cc

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/*
 * Copyright (c) 2013,2016 - Adjacent Link LLC, Bridgewater, New Jersey
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
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 *   notice, this list of conditions and the following disclaimer.
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 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
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 *   from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "statisticqueryhandler.h"
#include "statisticservice.h"
#include "emane/serializationexception.h"
#include "emane/registrarexception.h"
#include "anyutils.h"

std::string
EMANE::ControlPort::StatisticQueryHandler::process(const EMANERemoteControlPortAPI::Request::Query::Statistic & statistic,
                                                   std::uint32_t u32Sequence,
                                                   std::uint32_t u32Reference)
{
  std::vector<std::string> names;

  for(int i = 0; i < statistic.names_size(); ++i)
    {
      names.push_back(statistic.names(i));
    }

  EMANERemoteControlPortAPI::Response response;

  try
    {
      auto statisticValues =
        StatisticServiceSingleton::instance()->queryStatistic(statistic.buildid(),names);


      response.set_type(EMANERemoteControlPortAPI::Response::TYPE_RESPONSE_QUERY);

      auto pQuery = response.mutable_query();

      pQuery->set_type(EMANERemoteControlPortAPI::TYPE_QUERY_STATISTIC);

      auto pStatistic = pQuery->mutable_statistic();

      pStatistic->set_buildid(statistic.buildid());

      for(const auto & entry : statisticValues)
        {
          auto pElement = pStatistic->add_elements();

          pElement->set_name(entry.first);

          auto pValue = pElement->mutable_value();

          convertToAny(pValue,entry.second);
        }
    }
  catch(RegistrarException & exp)
    {
      response.set_type(EMANERemoteControlPortAPI::Response::TYPE_RESPONSE_ERROR);

      auto pError = response.mutable_error();

      pError->set_type(EMANERemoteControlPortAPI::Response::Error::TYPE_ERROR_PARAMETER);

      pError->set_description(exp.what());
    }

  response.set_reference(u32Reference);

  response.set_sequence(u32Sequence);

  std::string sSerialization;

  if(!response.SerializeToString(&sSerialization))
    {
      throw SerializationException("unable to serialize statistic query response");
    }

  return sSerialization;
}