Skip to main content

Rainbow FlatBuffers Conveted to Python

Project description

rb_flat_buffers

rb_flat_buffersschemas/*.fbs로부터 생성된 Python FlatBuffer 코드 패키지입니다.

핵심 요약

  • 소스 스키마: /schemas/**/*.fbs
  • 생성 결과 1: backend/packages/rb_flat_buffers/src/rb_flat_buffers/** (FlatBuffer Python generated code)
  • 생성 결과 2: backend/packages/rb_schemas/src/rb_schemas/fbs_models/** (Pydantic 모델)

즉, make backend.flatc를 실행하면:

  1. FlatBuffer Python 코드가 rb_flat_buffers에 생성되고
  2. 동일 스키마 기반 Pydantic 모델이 rb_schemas에 생성됩니다.

생성 방법

프로젝트 루트에서:

make backend.flatc

backend.mkbackend.flatc 타깃은 내부적으로 아래를 순서대로 실행합니다.

  1. scripts/backend/generate_flatbuffers.py
  • flatc --python --gen-object-api --gen-all 기반 생성
  • 출력: backend/packages/rb_flat_buffers/src/rb_flat_buffers
  1. backend/packages/rb_flat_buffers/scripts/patch_imports.py
  • generated import 경로/누락 import 보정
  1. scripts/backend/fbs_to_pydantic.py
  • .fbs를 Pydantic 모델로 변환
  • 출력: backend/packages/rb_schemas/src/rb_schemas/fbs_models

언제 실행해야 하나

아래 케이스에서는 make backend.flatc를 다시 실행해야 합니다.

  • schemas/*.fbs 수정
  • 신규 .fbs 파일 추가/삭제
  • FlatBuffer 타입/필드 변경(table/struct/enum/union)

rb_flat_buffers 사용 예시

예: 요청 객체 전송 + 값이 채워진 FlatBuffer 응답(returnValue) 수신

# server/queryable 쪽
from rb_flat_buffers.IPC.Request_Move_SmoothJogStop import Request_Move_SmoothJogStopT
from rb_flat_buffers.IPC.Response_Functions import Response_FunctionsT
from rb_zenoh.router import ZenohRouter

router = ZenohRouter()

@router.queryable(
    "C500920/call_smoothjog_stop",
    flatbuffer_req_t=Request_Move_SmoothJogStopT,
    flatbuffer_res_buf_size=64,
)
def on_call_pause(req, params=None):
    print(req.stoptime)  # 요청으로 전달된 값 사용 가능
    res = Response_FunctionsT()
    res.returnValue = 123  # 빈 payload가 아니라 실제 값 포함
    return res
# client/query 쪽
from rb_flat_buffers.IPC.Request_Move_SmoothJogStop import Request_Move_SmoothJogStopT
from rb_flat_buffers.IPC.Response_Functions import Response_FunctionsT
from rb_zenoh.client import ZenohClient

client = ZenohClient()
req = Request_Move_SmoothJogStopT()
req.stoptime = 0.7

res = client.query_one(
    "C500920/call_smoothjog_stop",
    flatbuffer_req_obj=req,
    flatbuffer_res_T_class=Response_FunctionsT,
    flatbuffer_buf_size=64,
)

obj = res.get("obj_payload")
print(obj.returnValue)  # 123

rb_schemas(Pydantic) 사용 예시

query_one 응답의 obj_payload를 Pydantic으로 validate한 뒤, model_dump에서 원하는 key case를 선택할 수 있습니다.

from rb_flat_buffers.IPC.Response_Functions import Response_FunctionsT
from rb_schemas.fbs_models.nexus.v1.deploy_models import Response_Deploy_UploadPD
from rb_utils.parser import t_to_dict
from rb_zenoh.client import ZenohClient

client = ZenohClient()

res = client.query_one(
    "deploy/call_upload",
    flatbuffer_res_T_class=Response_FunctionsT,
    timeout=0.3,
)

obj_payload = res.get("obj_payload")

# 1) FlatBuffer T 객체 -> dict 변환
raw_dict = t_to_dict(obj_payload) if obj_payload is not None else {}

# 2) Pydantic validate
pd_obj = Response_Deploy_UploadPD.model_validate(raw_dict)

# 3) key case 선택
snake_case = pd_obj.model_dump(by_alias=False)  # ex) return_value
camel_case = pd_obj.model_dump(by_alias=True)   # ex) returnValue

주의사항

  • 패키지명은 rb_flat_buffers입니다. (rb_flat_buffer 아님)
  • generated 파일은 수동 수정하지 않는 것을 권장합니다.
  • flatc가 PATH에 없으면 make backend.flatc가 실패합니다.

Project details


Release history Release notifications | RSS feed

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

rainbow_rb_flat_buffers-0.0.9.dev36.tar.gz (365.2 kB view details)

Uploaded Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

rainbow_rb_flat_buffers-0.0.9.dev36-py3-none-any.whl (1.2 MB view details)

Uploaded Python 3

File details

Details for the file rainbow_rb_flat_buffers-0.0.9.dev36.tar.gz.

File metadata

File hashes

Hashes for rainbow_rb_flat_buffers-0.0.9.dev36.tar.gz
Algorithm Hash digest
SHA256 cb14a6d35ff784daea6183b14a55788349b58dc576c9e839fa181a1ca788381d
MD5 48c1ef0ab74b7fd473386c57ebad935c
BLAKE2b-256 f97358f2665233c31dfef0375abfebe61a7bccac03b8ed002f8f3ee9056a1e7e

See more details on using hashes here.

File details

Details for the file rainbow_rb_flat_buffers-0.0.9.dev36-py3-none-any.whl.

File metadata

File hashes

Hashes for rainbow_rb_flat_buffers-0.0.9.dev36-py3-none-any.whl
Algorithm Hash digest
SHA256 561072b45ffa6880a7678c0ace07a449e8210883276739c689ba3aeb7630b362
MD5 2c7e502e93dff481d2dd47f28cd9a4d0
BLAKE2b-256 6e7d563731a960e30927a791408b9d3f9b3fcadd58d960f702933a6cbaea1115

See more details on using hashes here.

Supported by

AWS Cloud computing and Security Sponsor Datadog Monitoring Depot Continuous Integration Fastly CDN Google Download Analytics Pingdom Monitoring Sentry Error logging StatusPage Status page