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100 lines (81 loc) · 2.64 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 yaml
import json
from feast.specs.StorageSpec_pb2 import StorageSpec
from feast.sdk.utils.print_utils import spec_to_yaml
from google.protobuf.json_format import Parse
class Storage:
"""
Wrapper class for feast storage
"""
def __init__(self, id="", type="", options={}):
"""Create Storage instance.
Args:
id (str): storage id
type (str): storage type
options (dict, optional) : map of storage options
"""
self.__spec = StorageSpec(id=id, type=type, options=options)
@property
def spec(self):
return self.__spec
@property
def id(self):
return self.__spec.id
@id.setter
def id(self, value):
self.__spec.name = value
@property
def type(self):
return self.__spec.type
@type.setter
def type(self, value):
self.__spec.type = value
@property
def options(self):
return self.__spec.options
@options.setter
def options(self, value):
self.__spec.options.clear()
self.__spec.options.update(value)
@classmethod
def from_yaml(cls, path):
"""Create an instance of storage from a yaml file
Args:
path (str): path to yaml file
"""
with open(path, 'r') as file:
content = yaml.safe_load(file.read())
storage = cls()
storage.__spec = Parse(
json.dumps(content),
StorageSpec(),
ignore_unknown_fields=False)
return storage
def __str__(self):
"""Return string representation the storage in yaml format
Returns:
str: yaml formatted representation of the entity
"""
return spec_to_yaml(self.__spec)
def dump(self, path):
"""Dump the storage 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))