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#include "udf_helpers.h"
#include <library/cpp/resource/resource.h>
#include <util/generic/singleton.h>
#include <mutex>
#include <unordered_map>
namespace NYql {
namespace NUdf {
namespace {
struct TLoadedResources {
TString Get(TStringBuf resourceId) {
const std::unique_lock lock(Sync);
const auto ins = Resources.emplace(resourceId, "");
if (ins.second) {
ins.first->second = NResource::Find(resourceId);
}
return ins.first->second;
}
std::mutex Sync;
std::unordered_map<TString, TString> Resources;
};
} // namespace
TString LoadResourceOnce(TStringBuf resourceId) {
return Singleton<TLoadedResources>()->Get(resourceId);
}
} // namespace NUdf
} // namespace NYql
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