ImportPerformanceLogger.cpp

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/*
    This file is part of cpp-ethereum.
 
    cpp-ethereum is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    cpp-ethereum 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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
#include "ImportPerformanceLogger.h"
 
#include <boost/algorithm/string.hpp>
#include <boost/range/adaptors.hpp>
 
using namespace dev;
using namespace eth;
 
namespace
{
 
template <class ValueType>
static std::string pairToString(std::pair<std::string const, ValueType> const& _pair)
{
    return "\"" + _pair.first + "\": " + toString(_pair.second);
}
 
}
 
std::string ImportPerformanceLogger::constructReport(double _totalElapsed, std::unordered_map<std::string, std::string> const& _additionalValues)
{
    static std::string const Separator = ", ";
 
    std::string result;
    if (!_additionalValues.empty())
    {
        auto const keyValuesAdditional = _additionalValues | boost::adaptors::transformed(pairToString<std::string>);
        result += boost::algorithm::join(keyValuesAdditional, Separator);
        result += Separator;
    }
 
    m_stages.emplace("total", _totalElapsed);
    auto const keyValuesStages = m_stages | boost::adaptors::transformed(pairToString<double>);
    result += boost::algorithm::join(keyValuesStages, Separator);
 
    return result;
}