c6addc722c
The oslo.utils function has exception_to_unicode that can replace glance util function exception_to_str. So we don't to have this exception_to_str function in glance anymore. Change-Id: I332bc55558087920fdd6ae2d822bece5166f5ba6
120 lines
4.1 KiB
Python
120 lines
4.1 KiB
Python
# Copyright 2013 OpenStack LLC.
|
|
# Copyright 2013 IBM Corp.
|
|
# All Rights Reserved.
|
|
#
|
|
# 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 oslo_utils import encodeutils
|
|
import six
|
|
import warlock
|
|
|
|
from glanceclient.common import utils
|
|
from glanceclient.v2 import schemas
|
|
|
|
DEFAULT_PAGE_SIZE = 20
|
|
|
|
SORT_DIR_VALUES = ('asc', 'desc')
|
|
SORT_KEY_VALUES = ('id', 'type', 'status')
|
|
|
|
|
|
class Controller(object):
|
|
def __init__(self, http_client, schema_client):
|
|
self.http_client = http_client
|
|
self.schema_client = schema_client
|
|
|
|
@utils.memoized_property
|
|
def model(self):
|
|
schema = self.schema_client.get('task')
|
|
return warlock.model_factory(schema.raw(), schemas.SchemaBasedModel)
|
|
|
|
def list(self, **kwargs):
|
|
"""Retrieve a listing of Task objects.
|
|
|
|
:param page_size: Number of tasks to request in each paginated request
|
|
:returns generator over list of Tasks
|
|
"""
|
|
def paginate(url):
|
|
resp, body = self.http_client.get(url)
|
|
for task in body['tasks']:
|
|
yield task
|
|
try:
|
|
next_url = body['next']
|
|
except KeyError:
|
|
return
|
|
else:
|
|
for task in paginate(next_url):
|
|
yield task
|
|
|
|
filters = kwargs.get('filters', {})
|
|
|
|
if not kwargs.get('page_size'):
|
|
filters['limit'] = DEFAULT_PAGE_SIZE
|
|
else:
|
|
filters['limit'] = kwargs['page_size']
|
|
|
|
if 'marker' in kwargs:
|
|
filters['marker'] = kwargs['marker']
|
|
|
|
sort_key = kwargs.get('sort_key')
|
|
if sort_key is not None:
|
|
if sort_key in SORT_KEY_VALUES:
|
|
filters['sort_key'] = sort_key
|
|
else:
|
|
raise ValueError('sort_key must be one of the following: %s.'
|
|
% ', '.join(SORT_KEY_VALUES))
|
|
|
|
sort_dir = kwargs.get('sort_dir')
|
|
if sort_dir is not None:
|
|
if sort_dir in SORT_DIR_VALUES:
|
|
filters['sort_dir'] = sort_dir
|
|
else:
|
|
raise ValueError('sort_dir must be one of the following: %s.'
|
|
% ', '.join(SORT_DIR_VALUES))
|
|
|
|
for param, value in filters.items():
|
|
if isinstance(value, six.string_types):
|
|
filters[param] = encodeutils.safe_encode(value)
|
|
|
|
url = '/v2/tasks?%s' % six.moves.urllib.parse.urlencode(filters)
|
|
for task in paginate(url):
|
|
# NOTE(flwang): remove 'self' for now until we have an elegant
|
|
# way to pass it into the model constructor without conflict
|
|
task.pop('self', None)
|
|
yield self.model(**task)
|
|
|
|
def get(self, task_id):
|
|
"""Get a task based on given task id."""
|
|
url = '/v2/tasks/%s' % task_id
|
|
resp, body = self.http_client.get(url)
|
|
# NOTE(flwang): remove 'self' for now until we have an elegant
|
|
# way to pass it into the model constructor without conflict
|
|
body.pop('self', None)
|
|
return self.model(**body)
|
|
|
|
def create(self, **kwargs):
|
|
"""Create a new task."""
|
|
url = '/v2/tasks'
|
|
task = self.model()
|
|
|
|
for (key, value) in kwargs.items():
|
|
try:
|
|
setattr(task, key, value)
|
|
except warlock.InvalidOperation as e:
|
|
raise TypeError(encodeutils.exception_to_unicode(e))
|
|
|
|
resp, body = self.http_client.post(url, data=task)
|
|
# NOTE(flwang): remove 'self' for now until we have an elegant
|
|
# way to pass it into the model constructor without conflict
|
|
body.pop('self', None)
|
|
return self.model(**body)
|