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paths.py
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paths.py
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# Copyright 2020 Google LLC
#
# 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
#
# http://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.
from typing import NamedTuple, Union
from google.api_core.exceptions import InvalidArgument
from google.cloud.pubsublite.types.location import CloudZone, CloudRegion
def _parse_location(to_parse: str) -> Union[CloudRegion, CloudZone]:
try:
return CloudZone.parse(to_parse)
except InvalidArgument:
pass
try:
return CloudRegion.parse(to_parse)
except InvalidArgument:
pass
raise InvalidArgument("Invalid location name: " + to_parse)
class LocationPath(NamedTuple):
project: Union[int, str]
location: Union[CloudRegion, CloudZone]
def __str__(self):
return f"projects/{self.project}/locations/{self.location}"
@staticmethod
def parse(to_parse: str) -> "LocationPath":
splits = to_parse.split("/")
if len(splits) != 6 or splits[0] != "projects" or splits[2] != "locations":
raise InvalidArgument(
"Location path must be formatted like projects/{project_number}/locations/{location} but was instead "
+ to_parse
)
return LocationPath(splits[1], _parse_location(splits[3]))
class TopicPath(NamedTuple):
project: Union[int, str]
location: Union[CloudRegion, CloudZone]
name: str
def __str__(self):
return f"projects/{self.project}/locations/{self.location}/topics/{self.name}"
def to_location_path(self):
return LocationPath(self.project, self.location)
@staticmethod
def parse(to_parse: str) -> "TopicPath":
splits = to_parse.split("/")
if (
len(splits) != 6
or splits[0] != "projects"
or splits[2] != "locations"
or splits[4] != "topics"
):
raise InvalidArgument(
"Topic path must be formatted like projects/{project_number}/locations/{location}/topics/{name} but was instead "
+ to_parse
)
return TopicPath(splits[1], _parse_location(splits[3]), splits[5])
class SubscriptionPath(NamedTuple):
project: Union[int, str]
location: Union[CloudRegion, CloudZone]
name: str
def __str__(self):
return f"projects/{self.project}/locations/{self.location}/subscriptions/{self.name}"
def to_location_path(self):
return LocationPath(self.project, self.location)
@staticmethod
def parse(to_parse: str) -> "SubscriptionPath":
splits = to_parse.split("/")
if (
len(splits) != 6
or splits[0] != "projects"
or splits[2] != "locations"
or splits[4] != "subscriptions"
):
raise InvalidArgument(
"Subscription path must be formatted like projects/{project_number}/locations/{location}/subscriptions/{name} but was instead "
+ to_parse
)
return SubscriptionPath(splits[1], _parse_location(splits[3]), splits[5])
class ReservationPath(NamedTuple):
project: Union[int, str]
location: CloudRegion
name: str
def __str__(self):
return f"projects/{self.project}/locations/{self.location}/reservations/{self.name}"
def to_location_path(self):
return LocationPath(self.project, self.location)
@staticmethod
def parse(to_parse: str) -> "ReservationPath":
splits = to_parse.split("/")
if (
len(splits) != 6
or splits[0] != "projects"
or splits[2] != "locations"
or splits[4] != "reservations"
):
raise InvalidArgument(
"Reservation path must be formatted like projects/{project_number}/locations/{location}/reservations/{name} but was instead "
+ to_parse
)
return ReservationPath(splits[1], CloudRegion.parse(splits[3]), splits[5])