2854847fb4
This patch did: 1. Add two commands: "set/get metadata" in API v2. 2. As v1.1 and v2 don't contain the queue.exist() function, and the queue exist check has been done in server side. We should only use it in v1.0. 3. As v1.1 doesn't support PATCH in zaqar server side, we should not allow set metadata in v1.1. DocImpact Closes-bug: #1554326 Change-Id: I01b523ece09e87689516ecccf0c2c7795db46bb7
89 lines
3.4 KiB
Python
89 lines
3.4 KiB
Python
# Copyright (c) 2013 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from zaqarclient.queues.v1 import queues
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from zaqarclient.queues.v2 import core
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from zaqarclient.queues.v2 import message
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class Queue(queues.Queue):
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message_module = message
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def signed_url(self, paths=None, ttl_seconds=None, methods=None):
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req, trans = self.client._request_and_transport()
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return core.signed_url_create(trans, req, self._name, paths=paths,
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ttl_seconds=ttl_seconds, methods=methods)
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def subscriptions(self, detailed=False, marker=None, limit=20):
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return self.client.subscriptions(queue_name=self._name,
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detailed=detailed,
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marker=marker,
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limit=limit)
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def metadata(self, new_meta=None, force_reload=False):
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"""Get metadata and return it
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:param new_meta: A dictionary containing
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an updated metadata object. If present
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the queue metadata will be updated in
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remote server. If the new_meta is empty,
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the metadata object will be cleared.
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:type new_meta: `dict`
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:param force_reload: Whether to ignored the
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cached metadata and reload it from the
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server.
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:type force_reload: `bool`
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:returns: The queue metadata.
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"""
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req, trans = self.client._request_and_transport()
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# TODO(flaper87): Cache with timeout
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if new_meta is None and self._metadata and not force_reload:
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return self._metadata
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else:
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self._metadata = core.queue_get(trans, req, self._name)
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if new_meta is not None:
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temp_metadata = self._metadata.copy()
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changes = []
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for key, value in new_meta.items():
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# If key exists, replace it's value.
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if self._metadata.get(key, None):
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changes.append({'op': 'replace',
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'path': '/metadata/%s' % key,
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'value': value})
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temp_metadata.pop(key)
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# If not, add the new key.
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else:
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changes.append({'op': 'add',
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'path': '/metadata/%s' % key,
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'value': value})
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# For the keys which are not included in the new metadata, remove
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# them.
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for key, value in temp_metadata.items():
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changes.append({'op': 'remove',
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'path': '/metadata/%s' % key})
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self._metadata = core.queue_update(trans, req, self._name,
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metadata=changes)
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return self._metadata
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def create_object(parent):
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return lambda args: Queue(parent, args["name"], auto_create=False)
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