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feature_views.py
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373 lines (328 loc) · 13.4 KB
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import logging
from typing import Dict, List, Optional
from fastapi import APIRouter, Depends, Query
from fastapi.responses import JSONResponse
from google.protobuf.duration_pb2 import Duration
from pydantic import BaseModel
from feast.api.registry.rest.codegen_utils import render_feature_view_code
from feast.api.registry.rest.rest_utils import (
create_grpc_pagination_params,
create_grpc_sorting_params,
get_object_relationships,
get_pagination_params,
get_relationships_for_objects,
get_sorting_params,
grpc_call,
paginate_and_sort,
parse_tags,
)
from feast.protos.feast.core.DataSource_pb2 import DataSource as DataSourceProto
from feast.protos.feast.core.Feature_pb2 import FeatureSpecV2
from feast.protos.feast.core.FeatureView_pb2 import FeatureView as FeatureViewProto
from feast.protos.feast.core.FeatureView_pb2 import FeatureViewSpec
from feast.registry_server import RegistryServer_pb2
from feast.type_map import _convert_value_type_str_to_value_type
from feast.types import from_value_type
logger = logging.getLogger(__name__)
class FeatureModel(BaseModel):
name: str
value_type: int = 2
description: Optional[str] = ""
class ApplyFeatureViewRequestBody(BaseModel):
name: str
project: str
entities: Optional[List[str]] = []
features: Optional[List[FeatureModel]] = []
batch_source: Optional[str] = ""
ttl_seconds: Optional[int] = None
online: Optional[bool] = True
description: Optional[str] = ""
tags: Optional[Dict[str, str]] = {}
owner: Optional[str] = ""
def _extract_feature_view_from_any(any_feature_view: dict) -> dict:
"""Extract the specific feature view type and data from an AnyFeatureView object.
Args:
any_feature_view: Dictionary containing the AnyFeatureView data
Returns:
Dictionary with 'type' and feature view data, or empty dict if no valid type found
"""
for key, value in any_feature_view.items():
if value:
return {"type": key, **value}
return {}
def extract_feast_types_from_fields(fields):
types = set()
for field in fields:
value_type_enum = _convert_value_type_str_to_value_type(
field.get("valueType", "").upper()
)
feast_type = from_value_type(value_type_enum)
dtype = (
feast_type.__name__ if hasattr(feast_type, "__name__") else str(feast_type)
)
types.add(dtype)
return list(types)
def get_feature_view_router(grpc_handler) -> APIRouter:
router = APIRouter()
@router.get("/feature_views/all")
def list_feature_views_all(
allow_cache: bool = Query(default=True),
page: int = Query(1, ge=1),
limit: int = Query(50, ge=1, le=100),
sort_by: str = Query(None),
sort_order: str = Query("asc"),
include_relationships: bool = Query(
False, description="Include relationships for each feature view"
),
):
projects_resp = grpc_call(
grpc_handler.ListProjects,
RegistryServer_pb2.ListProjectsRequest(allow_cache=allow_cache),
)
projects = projects_resp.get("projects", [])
all_feature_views = []
for project in projects:
project_name = project["spec"]["name"]
req = RegistryServer_pb2.ListAllFeatureViewsRequest(
project=project_name,
allow_cache=allow_cache,
)
response = grpc_call(grpc_handler.ListAllFeatureViews, req)
any_feature_views = response.get("featureViews", [])
for any_feature_view in any_feature_views:
feature_view = _extract_feature_view_from_any(any_feature_view)
if feature_view:
feature_view["project"] = project_name
all_feature_views.append(feature_view)
paged_feature_views, pagination = paginate_and_sort(
all_feature_views, page, limit, sort_by, sort_order
)
result = {
"featureViews": paged_feature_views,
"pagination": pagination,
}
if include_relationships:
relationships_map = {}
for project in projects:
project_name = project["spec"]["name"]
# Filter feature views for this project
project_feature_views = [
fv for fv in all_feature_views if fv["project"] == project_name
]
rels = get_relationships_for_objects(
grpc_handler,
project_feature_views,
"featureView",
project_name,
allow_cache,
)
relationships_map.update(rels)
result["relationships"] = relationships_map
return result
@router.get("/feature_views/{name}")
def get_any_feature_view(
name: str,
project: str = Query(...),
include_relationships: bool = Query(
False, description="Include relationships for this feature view"
),
allow_cache: bool = Query(True),
):
req = RegistryServer_pb2.GetAnyFeatureViewRequest(
name=name,
project=project,
allow_cache=allow_cache,
)
response = grpc_call(grpc_handler.GetAnyFeatureView, req)
any_feature_view = response.get("anyFeatureView", {})
result = _extract_feature_view_from_any(any_feature_view)
if include_relationships:
relationships = get_object_relationships(
grpc_handler, "featureView", name, project, allow_cache
)
result["relationships"] = relationships
if result and "spec" in result:
spec = result["spec"]
fv_type = result.get("type", "featureView")
features = spec.get("features", [])
if not isinstance(features, list):
features = []
if fv_type == "onDemandFeatureView":
class_name = "OnDemandFeatureView"
sources = spec.get("sources", {})
if sources:
source_exprs = []
for k, v in sources.items():
var_name = v.get("name", k) if isinstance(v, dict) else str(v)
source_exprs.append(f'"{k}": {var_name}')
source_name = "{" + ", ".join(source_exprs) + "}"
else:
source_name = "source_feature_view"
elif fv_type == "streamFeatureView":
class_name = "StreamFeatureView"
stream_source = spec.get("streamSource", {})
source_name = stream_source.get("name", "stream_source")
else:
class_name = "FeatureView"
source_views = spec.get("source_views") or spec.get("sourceViews")
if source_views and isinstance(source_views, list):
source_vars = [sv.get("name", "source_view") for sv in source_views]
source_name = "[" + ", ".join(source_vars) + "]"
else:
source = spec.get("source")
if isinstance(source, dict) and source.get("name"):
source_name = source["name"]
else:
batch_source = spec.get("batchSource", {})
source_name = batch_source.get("name", "driver_stats_source")
# Entities
entities = spec.get("entities") or []
entities_str = ", ".join(entities)
# Feature schema
schema_lines = []
for field in features:
value_type_enum = _convert_value_type_str_to_value_type(
field.get("valueType", "").upper()
)
feast_type = from_value_type(value_type_enum)
dtype = getattr(feast_type, "__name__", str(feast_type))
desc = field.get("description")
desc_str = f', description="{desc}"' if desc else ""
schema_lines.append(
f' Field(name="{field["name"]}", dtype={dtype}{desc_str}),'
)
# Feast types
feast_types = extract_feast_types_from_fields(features)
# Tags
tags = spec.get("tags", {})
tags_str = f"tags={tags}," if tags else ""
# TTL
ttl = spec.get("ttl")
ttl_str = "timedelta(days=1)"
if ttl:
if isinstance(ttl, int):
ttl_str = f"timedelta(seconds={ttl})"
elif isinstance(ttl, str) and ttl.endswith("s") and ttl[:-1].isdigit():
ttl_str = f"timedelta(seconds={int(ttl[:-1])})"
# Online
online = spec.get("online", True)
# Build context
context = dict(
class_name=class_name,
name=spec.get("name", "example"),
entities_str=entities_str,
ttl_str=ttl_str,
schema_lines=schema_lines,
online=online,
source_name=source_name,
tags_str=tags_str,
feast_types=feast_types,
)
result["featureDefinition"] = render_feature_view_code(context)
return result
@router.get("/feature_views")
def list_all_feature_views(
project: str = Query(...),
allow_cache: bool = Query(default=True),
include_relationships: bool = Query(
False, description="Include relationships for each feature view"
),
entity: str = Query(None, description="Filter feature views by entity name"),
feature: str = Query(None, description="Filter feature views by feature name"),
feature_service: str = Query(
None, description="Filter feature views by feature service name"
),
data_source: str = Query(
None, description="Filter feature views by data source name"
),
tags: Dict[str, str] = Depends(parse_tags),
pagination_params: dict = Depends(get_pagination_params),
sorting_params: dict = Depends(get_sorting_params),
):
req = RegistryServer_pb2.ListAllFeatureViewsRequest(
project=project,
allow_cache=allow_cache,
tags=tags,
entity=entity,
feature=feature,
feature_service=feature_service,
data_source=data_source,
pagination=create_grpc_pagination_params(pagination_params),
sorting=create_grpc_sorting_params(sorting_params),
)
response = grpc_call(grpc_handler.ListAllFeatureViews, req)
any_feature_views = response.get("featureViews", [])
# Extract the specific type of feature view from each AnyFeatureView
feature_views = []
for any_feature_view in any_feature_views:
feature_view = _extract_feature_view_from_any(any_feature_view)
if feature_view:
feature_views.append(feature_view)
result = {
"featureViews": feature_views,
"pagination": response.get("pagination", {}),
}
if include_relationships:
relationships = get_relationships_for_objects(
grpc_handler, feature_views, "featureView", project, allow_cache
)
result["relationships"] = relationships
return result
@router.post("/feature_views", status_code=201)
def apply_feature_view(body: ApplyFeatureViewRequestBody):
feature_specs = []
for f in body.features or []:
feature_specs.append(
FeatureSpecV2(
name=f.name,
value_type=f.value_type,
description=f.description or "",
)
)
batch_source_proto = (
DataSourceProto(name=body.batch_source) if body.batch_source else None
)
ttl = (
Duration(seconds=body.ttl_seconds) if body.ttl_seconds is not None else None
)
spec = FeatureViewSpec(
name=body.name,
entities=body.entities or [],
features=feature_specs,
tags=body.tags or {},
online=body.online if body.online is not None else True,
description=body.description or "",
owner=body.owner or "",
)
if ttl is not None:
spec.ttl.CopyFrom(ttl)
if batch_source_proto:
spec.batch_source.CopyFrom(batch_source_proto)
fv_proto = FeatureViewProto(spec=spec)
req = RegistryServer_pb2.ApplyFeatureViewRequest(
feature_view=fv_proto,
project=body.project,
commit=True,
)
grpc_call(grpc_handler.ApplyFeatureView, req)
return JSONResponse(
status_code=201,
content={
"name": body.name,
"project": body.project,
"status": "applied",
},
)
@router.delete("/feature_views/{name}")
def delete_feature_view(
name: str,
project: str = Query(...),
):
req = RegistryServer_pb2.DeleteFeatureViewRequest(
name=name,
project=project,
commit=True,
)
grpc_call(grpc_handler.DeleteFeatureView, req)
return {"name": name, "project": project, "status": "deleted"}
return router