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#include <yql/essentials/public/purecalc/examples/protobuf/main.pb.h>
#include <yql/essentials/public/purecalc/purecalc.h>
#include <yql/essentials/public/purecalc/io_specs/protobuf/spec.h>
#include <yql/essentials/public/purecalc/helpers/stream/stream_from_vector.h>
using namespace NYql::NPureCalc;
using namespace NExampleProtos;
void PullStreamExample(IProgramFactoryPtr);
void PushStreamExample(IProgramFactoryPtr);
void PrecompileExample(IProgramFactoryPtr factory);
THolder<IStream<TInput*>> MakeInput();
class TConsumer: public IConsumer<TOutput*> {
public:
void OnObject(TOutput* message) override {
Cout << "path = " << message->GetPath() << Endl;
Cout << "host = " << message->GetHost() << Endl;
}
void OnFinish() override {
Cout << "end" << Endl;
}
};
const char* Query = R"(
$a = (SELECT * FROM Input);
$b = (SELECT CAST(Url::GetTail(Url) AS Utf8) AS Path, CAST(Url::GetHost(Url) AS Utf8) AS Host, Ip FROM $a);
$c = (SELECT Path, Host FROM $b WHERE Path IS NOT NULL AND Host IS NOT NULL AND Ip::IsIPv4(Ip::FromString(Ip)));
$d = (SELECT Unwrap(Path) AS Path, Unwrap(Host) AS Host FROM $c);
SELECT * FROM $d;
)";
int main(int argc, char** argv) {
try {
auto factory = MakeProgramFactory(
TProgramFactoryOptions().SetUDFsDir(argc > 1 ? argv[1] : "../../../../udfs"));
Cout << "Pull stream:" << Endl;
PullStreamExample(factory);
Cout << Endl;
Cout << "Push stream:" << Endl;
PushStreamExample(factory);
Cout << Endl;
Cout << "Pull stream with pre-compilation:" << Endl;
PrecompileExample(factory);
} catch (const TCompileError& err) {
Cerr << err.GetIssues() << Endl;
Cerr << err.what() << Endl;
}
}
void PullStreamExample(IProgramFactoryPtr factory) {
auto program = factory->MakePullStreamProgram(
TProtobufInputSpec<TInput>(),
TProtobufOutputSpec<TOutput>(),
Query,
ETranslationMode::SQL);
auto result = program->Apply(MakeInput());
while (auto* message = result->Fetch()) {
Cout << "path = " << message->GetPath() << Endl;
Cout << "host = " << message->GetHost() << Endl;
}
}
void PushStreamExample(IProgramFactoryPtr factory) {
auto program = factory->MakePushStreamProgram(
TProtobufInputSpec<TInput>(),
TProtobufOutputSpec<TOutput>(),
Query,
ETranslationMode::SQL);
auto consumer = program->Apply(MakeHolder<TConsumer>());
auto input = MakeInput();
while (auto* message = input->Fetch()) {
consumer->OnObject(message);
}
consumer->OnFinish();
}
void PrecompileExample(IProgramFactoryPtr factory) {
TString prg;
{
auto program = factory->MakePullStreamProgram(
TProtobufInputSpec<TInput>(),
TProtobufOutputSpec<TOutput>(),
Query,
ETranslationMode::SQL);
prg = program->GetCompiledProgram();
}
auto program = factory->MakePullStreamProgram(
TProtobufInputSpec<TInput>(),
TProtobufOutputSpec<TOutput>(),
prg,
ETranslationMode::Mkql);
auto result = program->Apply(MakeInput());
while (auto* message = result->Fetch()) {
Cout << "path = " << message->GetPath() << Endl;
Cout << "host = " << message->GetHost() << Endl;
}
}
THolder<IStream<TInput*>> MakeInput() {
TVector<TInput> input;
{
auto& message = input.emplace_back();
message.SetUrl("https://news.yandex.ru/Moscow/index.html?from=index");
message.SetIp("83.220.231.160");
}
{
auto& message = input.emplace_back();
message.SetUrl("https://music.yandex.ru/radio/");
message.SetIp("83.220.231.161");
}
{
auto& message = input.emplace_back();
message.SetUrl("https://yandex.ru/maps/?ll=141.475401%2C11.581666&spn=1.757813%2C1.733096&z=7&l=map%2Cstv%2Csta&mode=search&panorama%5Bpoint%5D=141.476317%2C11.582710&panorama%5Bdirection%5D=177.241445%2C-15.219821&panorama%5Bspan%5D=107.410156%2C61.993317");
message.SetIp("::ffff:77.75.155.3");
}
return StreamFromVector(std::move(input));
}
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