165 lines
5.9 KiB
Python
165 lines
5.9 KiB
Python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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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_db import exception as db_exc
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from oslo_log import log as logging
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from sqlalchemy import func
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import sqlalchemy.orm as sa_orm
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from glance.common import exception as exc
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from glance.db.sqlalchemy.metadef_api import namespace as namespace_api
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from glance.db.sqlalchemy.metadef_api import utils as metadef_utils
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from glance.db.sqlalchemy import models_metadef as models
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from glance.i18n import _
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LOG = logging.getLogger(__name__)
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def _get(context, property_id, session):
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try:
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query = session.query(models.MetadefProperty).filter_by(id=property_id)
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property_rec = query.one()
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except sa_orm.exc.NoResultFound:
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msg = (_("Metadata definition property not found for id=%s")
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% property_id)
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LOG.warn(msg)
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raise exc.MetadefPropertyNotFound(msg)
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return property_rec
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def _get_by_name(context, namespace_name, name, session):
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"""get a property; raise if ns not found/visible or property not found"""
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namespace = namespace_api.get(context, namespace_name, session)
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try:
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query = session.query(models.MetadefProperty).filter_by(
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name=name, namespace_id=namespace['id'])
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property_rec = query.one()
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except sa_orm.exc.NoResultFound:
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LOG.debug("The metadata definition property with name=%(name)s"
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" was not found in namespace=%(namespace_name)s.",
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{'name': name, 'namespace_name': namespace_name})
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raise exc.MetadefPropertyNotFound(property_name=name,
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namespace_name=namespace_name)
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return property_rec
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def get(context, namespace_name, name, session):
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"""get a property; raise if ns not found/visible or property not found"""
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property_rec = _get_by_name(context, namespace_name, name, session)
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return property_rec.to_dict()
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def get_all(context, namespace_name, session):
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namespace = namespace_api.get(context, namespace_name, session)
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query = session.query(models.MetadefProperty).filter_by(
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namespace_id=namespace['id'])
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properties = query.all()
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properties_list = []
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for prop in properties:
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properties_list.append(prop.to_dict())
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return properties_list
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def create(context, namespace_name, values, session):
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namespace = namespace_api.get(context, namespace_name, session)
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values.update({'namespace_id': namespace['id']})
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property_rec = models.MetadefProperty()
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metadef_utils.drop_protected_attrs(models.MetadefProperty, values)
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property_rec.update(values.copy())
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try:
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property_rec.save(session=session)
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except db_exc.DBDuplicateEntry:
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LOG.debug("Can not create metadata definition property. A property"
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" with name=%(name)s already exists in"
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" namespace=%(namespace_name)s.",
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{'name': property_rec.name,
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'namespace_name': namespace_name})
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raise exc.MetadefDuplicateProperty(
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property_name=property_rec.name,
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namespace_name=namespace_name)
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return property_rec.to_dict()
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def update(context, namespace_name, property_id, values, session):
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"""Update a property, raise if ns not found/visible or duplicate result"""
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namespace_api.get(context, namespace_name, session)
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property_rec = _get(context, property_id, session)
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metadef_utils.drop_protected_attrs(models.MetadefProperty, values)
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# values['updated_at'] = timeutils.utcnow() - done by TS mixin
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try:
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property_rec.update(values.copy())
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property_rec.save(session=session)
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except db_exc.DBDuplicateEntry:
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LOG.debug("Invalid update. It would result in a duplicate"
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" metadata definition property with the same name=%(name)s"
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" in namespace=%(namespace_name)s.",
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{'name': property_rec.name,
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'namespace_name': namespace_name})
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emsg = (_("Invalid update. It would result in a duplicate"
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" metadata definition property with the same name=%(name)s"
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" in namespace=%(namespace_name)s.")
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% {'name': property_rec.name,
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'namespace_name': namespace_name})
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raise exc.MetadefDuplicateProperty(emsg)
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return property_rec.to_dict()
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def delete(context, namespace_name, property_name, session):
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property_rec = _get_by_name(
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context, namespace_name, property_name, session)
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if property_rec:
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session.delete(property_rec)
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session.flush()
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return property_rec.to_dict()
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def delete_namespace_content(context, namespace_id, session):
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"""Use this def only if the ns for the id has been verified as visible"""
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count = 0
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query = session.query(models.MetadefProperty).filter_by(
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namespace_id=namespace_id)
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count = query.delete(synchronize_session='fetch')
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return count
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def delete_by_namespace_name(context, namespace_name, session):
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namespace = namespace_api.get(context, namespace_name, session)
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return delete_namespace_content(context, namespace['id'], session)
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def count(context, namespace_name, session):
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"""Get the count of properties for a namespace, raise if ns not found"""
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namespace = namespace_api.get(context, namespace_name, session)
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query = session.query(func.count(models.MetadefProperty.id)).filter_by(
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namespace_id=namespace['id'])
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return query.scalar()
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