log4cplus.cpp

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/**
 * @file
 * @ingroup daq_ocm
 * @copyright 2022 ESO - European Southern Observatory
 *
 * @brief Declaration of log4cplus helpers
 */
#include <daq/log4cplus.hpp>
 
#include <iostream>
#include <string>
 
#include <fmt/format.h>
 
namespace daq {
 
std::istream& operator>>(std::istream& is, LogLevel& level) {
    std::string token;
    is >> token;
    log4cplus::LogLevelManager& log_mgr = log4cplus::getLogLevelManager();
    log4cplus::LogLevel ll = log_mgr.fromString(token);
    if (ll == log4cplus::NOT_SET_LOG_LEVEL) {
        throw std::invalid_argument(fmt::format("'{}' is not a valid log level", token));
    }
    level.value = ll;
    return is;
}
 
std::ostream& operator<<(std::ostream& os, LogLevel level) {
    log4cplus::LogLevelManager& log_mgr = log4cplus::getLogLevelManager();
    os << log_mgr.toString(level.value);
    return os;
}
 
std::ostream& operator<<(std::ostream& os, Trim const& trim) {
    std::string_view str = trim.m_str;
    if (trim.m_spec & Trim::Right) {
        // find_last_not_of returns position and substr needs a count -> +1
        str = str.substr(0, str.find_last_not_of(Trim::WHITESPACE) + 1);
    }
    os.write(str.data(), str.size());
    return os;
}
 
}  // namespace daq