52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
# Copyright (c) 2014 Red Hat, Inc.
|
|
#
|
|
# 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 zaqarclient.queues.v1 import core
|
|
|
|
|
|
class Shard(object):
|
|
|
|
def __init__(self, client, name,
|
|
weight=None, uri=None,
|
|
auto_create=True, **options):
|
|
self.client = client
|
|
|
|
self.uri = uri
|
|
self.name = name
|
|
self.weight = weight
|
|
self.options = options
|
|
|
|
if auto_create:
|
|
self.ensure_exists()
|
|
|
|
def ensure_exists(self):
|
|
"""Ensures shard exists
|
|
|
|
This method is not race safe,
|
|
the shard could've been deleted
|
|
right after it was called.
|
|
"""
|
|
req, trans = self.client._request_and_transport()
|
|
|
|
data = {'uri': self.uri,
|
|
'weight': self.weight,
|
|
'options': self.options}
|
|
|
|
core.shard_create(trans, req, self.name, data)
|
|
|
|
def delete(self):
|
|
req, trans = self.client._request_and_transport()
|
|
core.shard_delete(trans, req, self.name)
|