Jungfraujoch/broker/gen/model/Helpers.cpp

/**
* Jungfraujoch
* API to control Jungfraujoch developed by the Paul Scherrer Institute (Switzerland). Jungfraujoch is a data acquisition and analysis system for pixel array detectors, primarly PSI JUNGFRAU. Jungfraujoch uses FPGA boards to acquire data at high data rates.  # License Clarification  While this API definition is licensed under GPL-3.0, **the GPL copyleft provisions do not apply** when this file is used solely to generate OpenAPI clients or when implementing applications that interact with the API. Generated client code and applications using this API definition are not subject to the GPL license requirements and may be distributed under terms of your choosing.  This exception is similar in spirit to the Linux Kernel's approach to userspace API headers and the GCC Runtime Library Exception. The Linux Kernel developers have explicitly stated that user programs that merely use the kernel interfaces (syscalls, ioctl definitions, etc.) are not derivative works of the kernel and are not subject to the terms of the GPL.  This exception is intended to allow wider use of this API specification without imposing GPL requirements on applications that merely interact with the API, regardless of whether they communicate through network calls or other mechanisms. 
*
* The version of the OpenAPI document: 1.0.0-rc.124
* Contact: filip.leonarski@psi.ch
*
* NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
* https://openapi-generator.tech
* Do not edit the class manually.
*/
#include "Helpers.h"
#include <regex>

namespace org::openapitools::server::helpers
{

const std::regex regexRfc3339_date(R"(^(\d{4})\-(\d{2})\-(\d{2})$)");
const std::regex regexRfc3339_date_time(
    R"(^(\d{4})\-(\d{2})\-(\d{2})[Tt](\d{2}):(\d{2}):(\d{2})(\.\d+)?([Zz]|([\+\-])(\d{2}):(\d{2}))$)"
);


namespace
{
    // Determine if given year is a leap year
    // See RFC 3339, Appendix C https://tools.ietf.org/html/rfc3339#appendix-C
    bool isLeapYear(const uint16_t year) {
        return (year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0));
    }

    bool validateDateValues(const uint16_t year, const uint16_t month, const uint16_t day) {
        return !(
            (month == 0 || month > 12)
            || (day == 0)
            || (month == 2 && day > (28 + (isLeapYear(year) ? 1 : 0)))
            || (month <= 7 && day > (30 + month % 2))
            || (month >= 8 && day > (31 - month % 2))
        );
    }

    bool validateTimeValues(const uint16_t hours, const uint16_t minutes, const uint16_t seconds) {
        return (hours <= 23) && (minutes <= 59) && (seconds <= 60);
    }
}

bool validateRfc3339_date(const std::string& str) {
    std::smatch match;
    const bool found = std::regex_search(str, match, regexRfc3339_date);
    return found && validateDateValues(static_cast<uint16_t>(std::stoi(match[1])),
                                       static_cast<uint16_t>(std::stoi(match[2])),
                                       static_cast<uint16_t>(std::stoi(match[3])));
}

bool validateRfc3339_date_time(const std::string& str) {
    std::smatch match;
    const bool found = std::regex_search(str, match, regexRfc3339_date_time);
    return found
        && validateDateValues(static_cast<uint16_t>(std::stoi(match[1])),
                              static_cast<uint16_t>(std::stoi(match[2])),
                              static_cast<uint16_t>(std::stoi(match[3])))
        && validateTimeValues(static_cast<uint16_t>(std::stoi(match[4])),
                              static_cast<uint16_t>(std::stoi(match[5])),
                              static_cast<uint16_t>(std::stoi(match[6])));
}

std::string toStringValue(const std::string &value){
    return std::string(value);
}

std::string toStringValue(const int32_t value){
    return std::to_string(value);
}

std::string toStringValue(const int64_t value){
    return std::to_string(value);
}

std::string toStringValue(const bool value){
    return value ? std::string("true") : std::string("false");
}

std::string toStringValue(const float value){
    return std::to_string(value);
}

std::string toStringValue(const double value){
    return std::to_string(value);
}

bool fromStringValue(const std::string &inStr, std::string &value){
    value = std::string(inStr);
    return true;
}

bool fromStringValue(const std::string &inStr, int32_t &value){
    try {
        value = std::stoi( inStr );
    }
    catch (const std::invalid_argument&) {
        return false;
    }
    return true;
}

bool fromStringValue(const std::string &inStr, int64_t &value){
    try {
        value = std::stol( inStr );
    }
    catch (const std::invalid_argument&) {
        return false;
    }
    return true;
}

bool fromStringValue(const std::string &inStr, bool &value){
    if (inStr == "true") {
        value = true;
        return true;
    }
    if (inStr == "false") {
        value = false;
        return true;
    }
    return false;
}

bool fromStringValue(const std::string &inStr, float &value){
    try {
        value = std::stof( inStr );
    }
    catch (const std::invalid_argument&) {
        return false;
    }
    return true;
}

bool fromStringValue(const std::string &inStr, double &value){
    try {
        value = std::stod( inStr );
    }
    catch (const std::invalid_argument&) {
        return false;
    }
    return true;
}

} // namespace org::openapitools::server::helpers