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#include "tvm_client.h"
#include <util/string/builder.h>
namespace NTvmAuth::NDynamicClient {
TAsyncUpdaterPtr TTvmClient::Create(const NTvmApi::TClientSettings& settings, TLoggerPtr logger) {
Y_ENSURE_EX(logger, TNonRetriableException() << "Logger is required");
THolder<TTvmClient> p(new TTvmClient(settings, std::move(logger)));
p->Init();
p->StartWorker();
return p.Release();
}
NThreading::TFuture<TAddResponse> TTvmClient::Add(TDsts&& dsts) {
if (dsts.empty()) {
LogDebug("Adding dst: got empty task");
return NThreading::MakeFuture<TAddResponse>(TAddResponse{});
}
const size_t size = dsts.size();
const ui64 id = ++TaskIds_;
NThreading::TPromise<TAddResponse> promise = NThreading::NewPromise<TAddResponse>();
TaskQueue_.Enqueue(TTask{id, promise, std::move(dsts)});
LogDebug(TStringBuilder() << "Adding dst: got task #" << id << " with " << size << " dsts");
return promise.GetFuture();
}
std::optional<TString> TTvmClient::GetOptionalServiceTicketFor(const TTvmId dst) {
TServiceTicketsPtr tickets = GetCachedServiceTickets();
Y_ENSURE_EX(tickets,
TBrokenTvmClientSettings()
<< "Need to enable fetching of service tickets in settings");
auto it = tickets->TicketsById.find(dst);
if (it != tickets->TicketsById.end()) {
return it->second;
}
it = tickets->ErrorsById.find(dst);
if (it != tickets->ErrorsById.end()) {
ythrow TMissingServiceTicket()
<< "Failed to get ticket for '" << dst << "': "
<< it->second;
}
return {};
}
TTvmClient::TTvmClient(const NTvmApi::TClientSettings& settings, TLoggerPtr logger)
: TBase(settings, logger)
{
}
TTvmClient::~TTvmClient() {
TBase::StopWorker();
}
void TTvmClient::Worker() {
TBase::Worker();
ProcessTasks();
}
void TTvmClient::ProcessTasks() {
TaskQueue_.DequeueAll(&Tasks_);
if (Tasks_.empty()) {
return;
}
TDsts required;
for (const TTask& task : Tasks_) {
for (const auto& dst : task.Dsts) {
required.insert(dst);
}
}
TServiceTicketsPtr cache = UpdateMissingServiceTickets(required);
for (TTask& task : Tasks_) {
try {
SetResponseForTask(task, *cache);
} catch (const std::exception& e) {
LogError(TStringBuilder()
<< "Adding dst: task #" << task.Id << ": exception: " << e.what());
} catch (...) {
LogError(TStringBuilder()
<< "Adding dst: task #" << task.Id << ": exception: " << CurrentExceptionMessage());
}
}
Tasks_.clear();
}
static const TString UNKNOWN = "Unknown reason";
void TTvmClient::SetResponseForTask(TTvmClient::TTask& task, const TServiceTickets& cache) {
if (task.Promise.HasValue()) {
LogWarning(TStringBuilder() << "Adding dst: task #" << task.Id << " already has value");
return;
}
TAddResponse response;
for (const auto& dst : task.Dsts) {
if (cache.TicketsById.contains(dst.Id)) {
AddDstToSettings(dst);
response.emplace(dst, TDstResponse{EDstStatus::Success, TString()});
LogDebug(TStringBuilder() << "Adding dst: task #" << task.Id
<< ": dst=" << dst.Id << " got ticket");
continue;
}
auto it = cache.ErrorsById.find(dst.Id);
const TString& error = it == cache.ErrorsById.end() ? UNKNOWN : it->second;
response.emplace(dst, TDstResponse{EDstStatus::Fail, error});
LogWarning(TStringBuilder() << "Adding dst: task #" << task.Id
<< ": dst=" << dst.Id
<< " failed to get ticket: " << error);
}
LogDebug(TStringBuilder() << "Adding dst: task #" << task.Id << ": set value");
task.Promise.SetValue(std::move(response));
}
}
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