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chore: implement path mutation for JsonFlat (#2805)

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* chore: implement path mutation for JsonFlat

This is done by converting the flat blob into mutable c++ json
and then building a new flat blob.

Also, add JsonFlat encoding to CompactObject class.
---------

Signed-off-by: Roman Gershman <roman@dragonflydb.io>
This commit is contained in:
Roman Gershman 2024-04-04 20:33:56 +03:00 • committed by GitHub
parent 845f01c7fd
commit c8426cfd31
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GPG key ID: B5690EEEBB952194
6 changed files with 106 additions and 58 deletions
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30
src/server/json_family.cc
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@ -87,8 +87,15 @@ facade::OpStatus SetJson(const OpArgs& op_args, string_view key, JsonType&& valu
op_args.shard->search_indices()->RemoveDoc(key, op_args.db_cntx, res.it->second);
res.it->second.SetJson(std::move(value));
if (absl::GetFlag(FLAGS_experimental_flat_json)) {
flexbuffers::Builder fbb;
json::FromJsonType(value, &fbb);
fbb.Finish();
const auto& buf = fbb.GetBuffer();
res.it->second.SetJson(buf.data(), buf.size());
} else {
res.it->second.SetJson(std::move(value));
}
op_args.shard->search_indices()->AddDoc(key, op_args.db_cntx, res.it->second);
return OpStatus::OK;
}
@ -1226,22 +1233,9 @@ OpResult<bool> OpSet(const OpArgs& op_args, string_view key, string_view path,
}
}
if (absl::GetFlag(FLAGS_experimental_flat_json)) {
flatbuffers::Parser parser;
flexbuffers::Builder fbb;
string tmp(json_str);
CHECK_EQ(json_str.size(), strlen(tmp.c_str()));
parser.ParseFlexBuffer(tmp.c_str(), nullptr, &fbb);
fbb.Finish();
const auto& buffer = fbb.GetBuffer();
string_view buf_view{reinterpret_cast<const char*>(buffer.data()), buffer.size()};
SetCmd scmd(op_args, false);
scmd.Set(SetCmd::SetParams{}, key, buf_view);
} else {
if (SetJson(op_args, key, std::move(parsed_json.value())) == OpStatus::OUT_OF_MEMORY) {
return OpStatus::OUT_OF_MEMORY;
}
OpStatus st = SetJson(op_args, key, std::move(parsed_json.value()));
if (st != OpStatus::OK) {
return st;
}
return true;
}