100 lines
3.3 KiB
Python
100 lines
3.3 KiB
Python
# Copyright 2012 OpenStack LLC.
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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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import urllib
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from glanceclient.common import base
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class Image(base.Resource):
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def __repr__(self):
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return "<Image %s>" % self._info
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def delete(self):
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return self.manager.delete(self)
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class ImageManager(base.Manager):
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resource_class = Image
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def _image_meta_from_headers(self, headers):
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meta = {'properties': {}}
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for key, value in headers.iteritems():
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if key.startswith('x-image-meta-property-'):
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_key = key[22:]
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meta['properties'][_key] = value
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elif key.startswith('x-image-meta-'):
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_key = key[13:]
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meta[_key] = value
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return meta
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def _image_meta_to_headers(self, fields):
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headers = {}
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for key, value in fields.iteritems():
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if key == 'properties':
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headers['x-image-meta-property-%s' % key] = value
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else:
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headers['x-image-meta-%s' % key] = value
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return headers
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def get(self, image):
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"""Get the metadata for a specific image.
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:param image: image object or id to look up
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:rtype: :class:`Image`
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"""
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resp, body = self.api.head('/v1/images/%s' % base.getid(image))
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meta = self._image_meta_from_headers(resp)
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return Image(self, meta)
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def list(self, limit=None, marker=None):
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"""Get a list of images.
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:param limit: maximum number of images to return. Used for pagination.
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:param marker: id of image last seen by caller. Used for pagination.
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:rtype: list of :class:`Image`
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"""
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params = {}
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if limit:
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params['limit'] = int(limit)
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if marker:
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params['marker'] = int(marker)
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query = '?%s' % urllib.urlencode(params) if params else ''
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return self._list('/v1/images/detail%s' % query, "images")
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def delete(self, image):
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"""Delete an image."""
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self._delete("/v1/images/%s" % base.getid(image))
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def create(self, **kwargs):
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"""Create an image"""
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fields = {}
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if 'name' in kwargs:
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fields['name'] = kwargs['name']
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resp, body = self.api.post('/v1/images', body={'image': fields})
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meta = self._image_meta_from_headers(resp)
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return Image(self, meta)
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def update(self, image, **kwargs):
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"""Update an image"""
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fields = {}
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if 'name' in kwargs:
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fields['name'] = kwargs['name']
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send_meta = self._image_meta_to_headers(fields)
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url = '/v1/images/%s' % base.getid(image)
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resp, body = self.api.put(url, headers=send_meta)
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recv_meta = self._image_meta_from_headers(resp)
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return Image(self, recv_meta)
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