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#pragma once
#include "msgbus_server.h"
#include <ydb/public/lib/base/msgbus.h>
#include <ydb/core/base/tablet.h>
#include <ydb/core/base/tablet_pipe.h>
#include <library/cpp/actors/core/actor_bootstrapped.h>
#include <library/cpp/actors/core/log.h>
#include <library/cpp/actors/core/hfunc.h>
#include <ydb/core/protos/services.pb.h>
#include <util/generic/hash_set.h>
#include <util/generic/vector.h>
#define CHECK_PROTOBUF_FIELD_PRESENCE(pb, field, errslist) \
if (!pb.Has##field()) { \
errslist.push_back( #field );\
}
namespace NKikimr {
namespace NMsgBusProxy {
template<typename TDerived, typename TTabletReplyEvent>
class TMessageBusTabletRequest : public TActorBootstrapped<TDerived>, public TMessageBusSessionIdentHolder {
protected:
const TDuration Timeout;
const bool WithRetry;
const bool ConnectToFollower;
private:
TActorId PipeClient;
ui64 TabletId = 0;
void Handle(TEvTabletPipe::TEvClientConnected::TPtr &ev, const TActorContext &ctx) {
TEvTabletPipe::TEvClientConnected *msg = ev->Get();
if (msg->Status != NKikimrProto::OK) {
PipeClient = TActorId();
return SendReplyAndDie(CreateErrorReply(MSTATUS_ERROR, ctx,
Sprintf("Tablet pipe client connected with status# %s for tablet %" PRIu64 " Marker# MBT3",
NKikimrProto::EReplyStatus_Name(msg->Status).data(), msg->TabletId)), ctx);
}
}
void Handle(TEvTabletPipe::TEvClientDestroyed::TPtr &ev, const TActorContext &ctx) {
Y_UNUSED(ev);
PipeClient = TActorId();
SendReplyMove(CreateErrorReply(MSTATUS_ERROR, ctx, "Tablet pipe client destroyed Marker# MBT2"));
return Die(ctx);
}
void HandleTimeout(const TActorContext &ctx) {
return SendReplyAndDie(CreateErrorReply(MSTATUS_TIMEOUT, ctx, "Tablet request timed out Marker# MBT4"), ctx);
}
protected:
void Die(const TActorContext &ctx) override {
if (PipeClient) {
NTabletPipe::CloseClient(ctx, PipeClient);
PipeClient = TActorId();
}
TActorBootstrapped<TDerived>::Die(ctx);
}
virtual NBus::TBusMessage* CreateErrorReply(EResponseStatus status, const TActorContext &ctx,
const TString& text = TString()) {
LOG_ERROR_S(ctx, NKikimrServices::MSGBUS_REQUEST, "TabletRequest TabletId# " << TabletId
<< " status# " << status << " text# \"" << text << "\"" << Endl);
return new TBusResponseStatus(status, text);
}
void SendReplyAndDie(NBus::TBusMessage *reply, const TActorContext &ctx) {
SendReplyMove(reply);
return Die(ctx);
}
TMessageBusTabletRequest(TBusMessageContext &msg, bool withRetry, TDuration timeout, bool connectToFollower)
: TMessageBusSessionIdentHolder(msg)
, Timeout(timeout)
, WithRetry(withRetry)
, ConnectToFollower(connectToFollower)
{
}
public:
static constexpr NKikimrServices::TActivity::EType ActorActivityType() {
return NKikimrServices::TActivity::MSGBUS_COMMON;
}
void Bootstrap(const TActorContext &ctx) {
NTabletPipe::TClientConfig clientConfig;
if (WithRetry) {
clientConfig.RetryPolicy = NTabletPipe::TClientRetryPolicy::WithRetries();
}
if (ConnectToFollower) {
clientConfig.AllowFollower = true;
clientConfig.ForceFollower = true;
}
std::pair<ui64, TAutoPtr<IEventBase>> reqPair = static_cast<TDerived *>(this)->MakeReqPair(ctx);
TabletId = reqPair.first;
if (reqPair.first) {
PipeClient = ctx.RegisterWithSameMailbox(NTabletPipe::CreateClient(ctx.SelfID, reqPair.first, clientConfig));
NTabletPipe::SendData(ctx, PipeClient, reqPair.second.Release());
this->Become(&TDerived::StateFunc, ctx, Timeout, new TEvents::TEvWakeup());
} else {
return SendReplyAndDie(CreateErrorReply(MSTATUS_ERROR, ctx,
"Unable to obtain TabletId Marker# MBT1"), ctx);
}
}
STFUNC(StateFunc) {
switch (ev->GetTypeRewrite()) {
HTemplFunc(TTabletReplyEvent, static_cast<TDerived *>(this)->Handle);
HFunc(TEvTabletPipe::TEvClientDestroyed, Handle);
HFunc(TEvTabletPipe::TEvClientConnected, Handle);
CFunc(TEvents::TSystem::Wakeup, HandleTimeout);
}
}
};
template<typename TDerived, typename TTabletReplyEvent, NKikimrServices::TActivity::EType Activity>
class TMessageBusSimpleTabletRequest : public TMessageBusTabletRequest<TDerived, TTabletReplyEvent> {
protected:
const ui64 TabletID;
TMessageBusSimpleTabletRequest(TBusMessageContext &msg, ui64 tabletId, bool withRetry, TDuration timeout, bool connectToFollower)
: TMessageBusTabletRequest<TDerived, TTabletReplyEvent>(msg, withRetry, timeout, connectToFollower)
, TabletID(tabletId)
{}
public:
std::pair<ui64, TAutoPtr<IEventBase>> MakeReqPair(const TActorContext &ctx) {
return std::pair<ui64, TAutoPtr<IEventBase>>(TabletID, static_cast<TDerived *>(this)->MakeReq(ctx));
}
static constexpr auto ActorActivityType() {
return Activity;
}
};
}
}
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