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ntkatholentkathole
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feat: Add Label View to init template
Signed-off-by: ntkathole <nikhilkathole2683@gmail.com>
1 parent c9602d8 commit 8c5977d

13 files changed

Lines changed: 327 additions & 116 deletions

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‎sdk/python/feast/infra/online_stores/sqlite.py‎

Lines changed: 15 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -45,6 +45,7 @@
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from feast.infra.online_stores.helpers import compute_table_id
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from feast.infra.online_stores.online_store import OnlineStore
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from feast.infra.online_stores.vector_store import VectorStoreConfig
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from feast.labeling.label_view import LabelView
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from feast.protos.feast.core.InfraObject_pb2 import InfraObject as InfraObjectProto
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from feast.protos.feast.core.Registry_pb2 import Registry as RegistryProto
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from feast.protos.feast.core.SqliteTable_pb2 import SqliteTable as SqliteTableProto
@@ -317,21 +318,33 @@ def plan(
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self, config: RepoConfig, desired_registry_proto: RegistryProto
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) -> List[InfraObject]:
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project = config.project
321+
versioning = config.registry.enable_online_feature_view_versioning
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321323
infra_objects: List[InfraObject] = [
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SqliteTable(
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path=self._get_db_path(config),
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name=_table_id(
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project,
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FeatureView.from_proto(view),
327-
config.registry.enable_online_feature_view_versioning,
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versioning,
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),
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)
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for view in [
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*desired_registry_proto.feature_views,
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*desired_registry_proto.stream_feature_views,
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]
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]
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for lv_proto in desired_registry_proto.label_views:
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if lv_proto.spec.online:
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lv = LabelView.from_proto(lv_proto)
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infra_objects.append(
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SqliteTable(
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path=self._get_db_path(config),
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name=_table_id(project, lv, versioning),
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)
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)
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335348
return infra_objects
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337350
def teardown(
@@ -716,7 +729,7 @@ def _initialize_conn(
716729
return db
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718731

719-
def _table_id(project: str, table: FeatureView, enable_versioning: bool = False) -> str:
732+
def _table_id(project: str, table: Any, enable_versioning: bool = False) -> str:
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return compute_table_id(project, table, enable_versioning)
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722735

‎sdk/python/feast/templates/local/bootstrap.py‎

Lines changed: 27 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,6 @@
1+
import pyarrow as pa
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import pyarrow.parquet as pq
3+
14
from feast.file_utils import replace_str_in_file
25

36

@@ -23,6 +26,25 @@ def bootstrap():
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driver_stats_path = data_path / "driver_stats.parquet"
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driver_df.to_parquet(path=str(driver_stats_path), allow_truncated_timestamps=True)
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29+
# Create an empty parquet file for the label view batch source
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# Use explicit pyarrow schema to ensure proper column types even with zero rows
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label_schema = pa.schema(
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[
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("driver_id", pa.int64()),
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("is_reliable", pa.int64()),
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("quality_score", pa.float32()),
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("reviewer_notes", pa.string()),
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("labeler", pa.string()),
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("event_timestamp", pa.timestamp("ns")),
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]
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)
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label_table = pa.table(
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{field.name: pa.array([], type=field.type) for field in label_schema},
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schema=label_schema,
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)
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label_data_path = data_path / "driver_quality_labels.parquet"
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pq.write_table(label_table, str(label_data_path))
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2648
example_py_file = repo_path / "feature_definitions.py"
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replace_str_in_file(example_py_file, "%PROJECT_NAME%", str(project_name))
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replace_str_in_file(
@@ -31,6 +53,11 @@ def bootstrap():
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replace_str_in_file(
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example_py_file, "%LOGGING_PATH%", str(data_path.relative_to(repo_path))
3355
)
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replace_str_in_file(
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example_py_file,
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"%LABEL_DATA_PATH%",
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str(label_data_path.relative_to(repo_path)),
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)
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3562

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if __name__ == "__main__":

‎sdk/python/feast/templates/local/feature_repo/feature_definitions.py‎

Lines changed: 40 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -5,11 +5,13 @@
55
import pandas as pd
66

77
from feast import (
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ConflictPolicy,
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Entity,
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FeatureService,
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FeatureView,
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Field,
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FileSource,
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LabelView,
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Project,
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PushSource,
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RequestSource,
@@ -165,3 +167,41 @@ def transformed_conv_rate_fresh(inputs: pd.DataFrame) -> pd.DataFrame:
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name="driver_activity_v3",
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features=[driver_stats_fresh_fv, transformed_conv_rate_fresh],
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)
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# --- Label Views ---
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# Label views manage mutable human labels for training data, RLHF, and evaluation.
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# They use PushSources so labels can be submitted from the UI or external tools.
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175+
driver_quality_labels_source = PushSource(
176+
name="driver_quality_labels_push",
177+
batch_source=FileSource(
178+
name="driver_quality_labels_batch",
179+
path="%LABEL_DATA_PATH%",
180+
timestamp_field="event_timestamp",
181+
),
182+
)
183+
184+
driver_quality_labels = LabelView(
185+
name="driver_quality_labels",
186+
entities=[driver],
187+
schema=[
188+
Field(name="is_reliable", dtype=Int64),
189+
Field(name="quality_score", dtype=Float32),
190+
Field(name="reviewer_notes", dtype=String),
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Field(name="labeler", dtype=String),
192+
],
193+
source=driver_quality_labels_source,
194+
labeler_field="labeler",
195+
conflict_policy=ConflictPolicy.LAST_WRITE_WINS,
196+
description="Human quality labels for drivers - used for model training and evaluation",
197+
tags={
198+
"feast.io/labeling-method": "table",
199+
"feast.io/field-role:is_reliable": "label",
200+
"feast.io/field-role:quality_score": "label",
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"feast.io/field-role:reviewer_notes": "metadata",
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"feast.io/label-values:is_reliable": "1,0",
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"feast.io/label-widget:is_reliable": "binary",
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"feast.io/label-widget:quality_score": "number",
205+
"feast.io/label-widget:reviewer_notes": "text",
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},
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)

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