Iterator.cpp

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#include "include/Iterator.hpp"
 
#include <sstream>
 
namespace Nextsim {
 
Iterator::NullIterant Iterator::nullIterant;
 
Iterator::Iterator()
    : iterant(&nullIterant)
{
}
 
Iterator::Iterator(Iterant* iterant)
    : iterant(iterant)
{
}
 
void Iterator::setIterant(Iterant* iterant) { this->iterant = iterant; }
 
void Iterator::setStartStopStep(TimePoint startTime, TimePoint stopTime, Duration timestep)
{
    this->startTime = startTime;
    this->stopTime = stopTime;
    this->timestep = timestep;
}
 
TimePoint Iterator::parseAndSet(const std::string& startTimeStr, const std::string& stopTimeStr,
    const std::string& durationStr, const std::string& stepStr)
{
    std::stringstream ss(startTimeStr);
    ss >> startTime;
    ss = std::stringstream(stepStr);
    ss >> timestep;
    if (!durationStr.empty()) {
        ss = std::stringstream(durationStr);
        Duration duration;
        ss >> duration;
        stopTime = startTime + duration;
    } else {
        ss = std::stringstream(stopTimeStr);
        ss >> stopTime;
    }
 
    return startTime;
}
 
void Iterator::run()
{
    iterant->start(startTime);
 
    for (auto t = startTime; t < stopTime; t += timestep) {
        TimestepTime tsTime = { t, timestep };
        iterant->iterate(tsTime);
    }
 
    iterant->stop(stopTime);
}
 
} /* namespace Nextsim */