58 lines
2.0 KiB
Python
58 lines
2.0 KiB
Python
# 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 timeutils
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class ViewBuilder(object):
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"""Model an attachment API response as a python dictionary."""
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_collection_name = "attachments"
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@staticmethod
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def _normalize(date):
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if date:
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return timeutils.normalize_time(date)
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return ''
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@classmethod
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def detail(cls, attachment, flat=False):
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"""Detailed view of an attachment."""
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result = cls.summary(attachment, flat=True)
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result.update(
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attached_at=cls._normalize(attachment.attach_time),
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detached_at=cls._normalize(attachment.detach_time),
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attach_mode=attachment.attach_mode,
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connection_info=getattr(attachment, 'connection_info', None),)
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if flat:
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return result
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return {'attachment': result}
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@staticmethod
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def summary(attachment, flat=False):
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"""Non detailed view of an attachment."""
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result = {
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'id': attachment.id,
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'status': attachment.attach_status,
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'instance': attachment.instance_uuid,
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'volume_id': attachment.volume_id, }
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if flat:
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return result
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return {'attachment': result}
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@classmethod
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def list(cls, attachments, detail=False):
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"""Build a view of a list of attachments."""
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func = cls.detail if detail else cls.summary
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return {'attachments': [func(attachment, flat=True) for attachment in
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attachments]}
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