120 lines
4.1 KiB
Python
120 lines
4.1 KiB
Python
# Copyright 2013 OpenStack LLC.
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# Copyright 2013 IBM Corp.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_utils import encodeutils
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import six
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import warlock
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from glanceclient.common import utils
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from glanceclient.v2 import schemas
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DEFAULT_PAGE_SIZE = 20
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SORT_DIR_VALUES = ('asc', 'desc')
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SORT_KEY_VALUES = ('id', 'type', 'status')
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class Controller(object):
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def __init__(self, http_client, schema_client):
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self.http_client = http_client
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self.schema_client = schema_client
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@utils.memoized_property
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def model(self):
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schema = self.schema_client.get('task')
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return warlock.model_factory(schema.raw(), schemas.SchemaBasedModel)
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def list(self, **kwargs):
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"""Retrieve a listing of Task objects.
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:param page_size: Number of tasks to request in each paginated request
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:returns generator over list of Tasks
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"""
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def paginate(url):
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resp, body = self.http_client.get(url)
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for task in body['tasks']:
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yield task
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try:
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next_url = body['next']
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except KeyError:
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return
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else:
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for task in paginate(next_url):
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yield task
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filters = kwargs.get('filters', {})
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if not kwargs.get('page_size'):
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filters['limit'] = DEFAULT_PAGE_SIZE
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else:
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filters['limit'] = kwargs['page_size']
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if 'marker' in kwargs:
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filters['marker'] = kwargs['marker']
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sort_key = kwargs.get('sort_key')
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if sort_key is not None:
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if sort_key in SORT_KEY_VALUES:
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filters['sort_key'] = sort_key
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else:
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raise ValueError('sort_key must be one of the following: %s.'
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% ', '.join(SORT_KEY_VALUES))
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sort_dir = kwargs.get('sort_dir')
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if sort_dir is not None:
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if sort_dir in SORT_DIR_VALUES:
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filters['sort_dir'] = sort_dir
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else:
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raise ValueError('sort_dir must be one of the following: %s.'
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% ', '.join(SORT_DIR_VALUES))
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for param, value in filters.items():
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if isinstance(value, six.string_types):
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filters[param] = encodeutils.safe_encode(value)
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url = '/v2/tasks?%s' % six.moves.urllib.parse.urlencode(filters)
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for task in paginate(url):
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# NOTE(flwang): remove 'self' for now until we have an elegant
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# way to pass it into the model constructor without conflict
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task.pop('self', None)
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yield self.model(**task)
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def get(self, task_id):
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"""Get a task based on given task id."""
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url = '/v2/tasks/%s' % task_id
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resp, body = self.http_client.get(url)
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# NOTE(flwang): remove 'self' for now until we have an elegant
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# way to pass it into the model constructor without conflict
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body.pop('self', None)
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return self.model(**body)
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def create(self, **kwargs):
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"""Create a new task."""
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url = '/v2/tasks'
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task = self.model()
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for (key, value) in kwargs.items():
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try:
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setattr(task, key, value)
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except warlock.InvalidOperation as e:
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raise TypeError(utils.exception_to_str(e))
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resp, body = self.http_client.post(url, data=task)
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# NOTE(flwang): remove 'self' for now until we have an elegant
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# way to pass it into the model constructor without conflict
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body.pop('self', None)
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return self.model(**body)
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