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111 lines (91 loc) · 3.11 KB
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# Copyright 2018 The Feast Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
import yaml
from feast.specs.EntitySpec_pb2 import EntitySpec
from feast.sdk.utils.print_utils import spec_to_yaml
from google.protobuf.json_format import Parse
class Entity:
"""
Wrapper class for feast entity
"""
def __init__(self, name="", description="", tags=[]):
"""
Create Entity instance.
Args:
name (str): name of entity
description (str): description of entity
tags (list[str], optional): defaults to [].
list of tags for this entity
"""
self.__spec = EntitySpec(name=name, description=description, tags=tags)
@property
def spec(self):
return self.__spec
@property
def name(self):
return self.__spec.name
@name.setter
def name(self, value):
self.__spec.name = value
@property
def description(self):
return self.__spec.description
@description.setter
def description(self, value):
self.__spec.description = value
@property
def tags(self):
return self.__spec.tags
@tags.setter
def tags(self, value):
del self.__spec.tags[:]
self.__spec.tags.extend(value)
@classmethod
def from_yaml(cls, path):
"""Create an instance of entity from a yaml file
Args:
path (str): path to yaml file
"""
with open(path, 'r') as file:
content = yaml.safe_load(file.read())
entity = cls()
entity.__spec = Parse(
json.dumps(content), EntitySpec(), ignore_unknown_fields=False)
return entity
def create_feature(self, name, value_type, owner, description):
"""Create a feature related to this entity
Args:
name (str): feature name
value_type (feast.types.ValueType_pb2.ValueType): value type of
the feature
owner (str): owner of the feature
description (str): feature's description
"""
pass
def __str__(self):
"""Print the feature in yaml format
Returns:
str: yaml formatted representation of the entity
"""
return spec_to_yaml(self.__spec)
def dump(self, path):
"""Dump the feature into a yaml file.
It will replace content of an existing file.
Args:
path (str): destination file path
"""
with open(path, 'w') as file:
file.write(str(self))
print("Saved spec to {}".format(path))