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#include "ybusbuf.h"
#include <library/cpp/messagebus/actor/what_thread_does.h>
#include <google/protobuf/io/coded_stream.h>
using namespace NBus;
TBusBufferProtocol::TBusBufferProtocol(TBusService name, int port)
: TBusProtocol(name, port)
{
}
TBusBufferProtocol::~TBusBufferProtocol() {
for (auto& type : Types) {
delete type;
}
}
TBusBufferBase* TBusBufferProtocol::FindType(int type) {
for (unsigned i = 0; i < Types.size(); i++) {
if (Types[i]->GetHeader()->Type == type) {
return Types[i];
}
}
return nullptr;
}
bool TBusBufferProtocol::IsRegisteredType(unsigned type) {
return TypeMask[type >> 5] & (1 << (type & ((1 << 5) - 1)));
}
void TBusBufferProtocol::RegisterType(TAutoPtr<TBusBufferBase> mess) {
ui32 type = mess->GetHeader()->Type;
TypeMask[type >> 5] |= 1 << (type & ((1 << 5) - 1));
Types.push_back(mess.Release());
}
TArrayRef<TBusBufferBase* const> TBusBufferProtocol::GetTypes() const {
return Types;
}
void TBusBufferProtocol::Serialize(const TBusMessage* mess, TBuffer& data) {
TWhatThreadDoesPushPop pp("serialize protobuf message");
const TBusHeader* header = mess->GetHeader();
if (!IsRegisteredType(header->Type)) {
Y_ABORT("unknown message type: %d", int(header->Type));
return;
}
// cast the base from real message
const TBusBufferBase* bmess = CheckedCast<const TBusBufferBase*>(mess);
unsigned size = bmess->GetRecord()->ByteSize();
data.Reserve(data.Size() + size);
char* after = (char*)bmess->GetRecord()->SerializeWithCachedSizesToArray((ui8*)data.Pos());
Y_ABORT_UNLESS(after - data.Pos() == size);
data.Advance(size);
}
TAutoPtr<TBusMessage> TBusBufferProtocol::Deserialize(ui16 messageType, TArrayRef<const char> payload) {
TWhatThreadDoesPushPop pp("deserialize protobuf message");
TBusBufferBase* messageTemplate = FindType(messageType);
if (messageTemplate == nullptr) {
return nullptr;
//Y_ABORT("unknown message type: %d", unsigned(messageType));
}
// clone the base
TAutoPtr<TBusBufferBase> bmess = messageTemplate->New();
// Need to override protobuf message size limit
// NOTE: the payload size has already been checked against session MaxMessageSize
google::protobuf::io::CodedInputStream input(reinterpret_cast<const ui8*>(payload.data()), payload.size());
input.SetTotalBytesLimit(payload.size());
bool ok = bmess->GetRecord()->ParseFromCodedStream(&input) && input.ConsumedEntireMessage();
if (!ok) {
return nullptr;
}
return bmess.Release();
}
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