DateProviderDateFormatter() : DateFormatter("%a, %d %b %Y %H:%M:%S GMT") {}

    : DateProviderImplBase(dispatcher.timeSource()), tls_(tls.allocateSlot()),

      refresh_timer_(dispatcher.createTimer([this]() -> void { onRefreshDate(); })) {

  onRefreshDate();

}

void TlsCachingDateProviderImpl::onRefreshDate() {

  std::string new_date_string = DateProviderDateFormatterSingleton::get().now(time_source_);

  tls_->set([new_date_string](Event::Dispatcher&) -> ThreadLocal::ThreadLocalObjectSharedPtr {

    return std::make_shared<ThreadLocalCachedDate>(new_date_string);

  });

  refresh_timer_->enableTimer(std::chrono::milliseconds(500));

}

void TlsCachingDateProviderImpl::setDateHeader(ResponseHeaderMap& headers) {

  headers.setDate(tls_->getTyped<ThreadLocalCachedDate>().date_string_);

}

void SlowDateProviderImpl::setDateHeader(ResponseHeaderMap& headers) {

  headers.setDate(DateProviderDateFormatterSingleton::get().now(time_source_));

}