743eaf78cc
* New storage drivers can be implemented in addition to MongoDB, for example: MySQL or Postgres, etc. * The default database driver still MongoDB * New storage drivers must implement the interface defined by the class BaseDriver * Flexmock and hamcrest are deprected for new unit tests Change-Id: I1cf73f28d469d2f22ecbaf345e53b9596cc0c2f6
125 lines
5.3 KiB
Python
125 lines
5.3 KiB
Python
# Copyright 2016 Internap.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_log import log
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import pymongo
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from almanach.core import exception
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from almanach.core import model
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from almanach.core.model import build_entity_from_dict
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from almanach.storage.drivers import base_driver
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LOG = log.getLogger(__name__)
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class MongoDbDriver(base_driver.BaseDriver):
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def __init__(self, config, db=None):
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super(MongoDbDriver, self).__init__(config)
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self.db = db
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def connect(self):
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connection = pymongo.MongoClient(self.config.database.connection_url, tz_aware=True)
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connection_options = pymongo.uri_parser.parse_uri(self.config.database.connection_url)
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self.db = connection[connection_options['database']]
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def get_active_entity(self, entity_id):
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entity = self._get_one_entity_from_db({"entity_id": entity_id, "end": None})
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if not entity:
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raise KeyError("Unable to find entity id %s" % entity_id)
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return build_entity_from_dict(entity)
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def count_entities(self):
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return self.db.entity.count()
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def count_active_entities(self):
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return self.db.entity.find({"end": None}).count()
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def count_entity_entries(self, entity_id):
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return self.db.entity.find({"entity_id": entity_id}).count()
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def has_active_entity(self, entity_id):
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return self.db.entity.find({"entity_id": entity_id, "end": None}).count() == 1
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def list_entities(self, project_id, start, end, entity_type=None):
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args = {"project_id": project_id, "start": {"$lte": end}, "$or": [{"end": None}, {"end": {"$gte": start}}]}
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if entity_type:
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args["entity_type"] = entity_type
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entities = self._get_entities_from_db(args)
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return [build_entity_from_dict(entity) for entity in entities]
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def get_all_entities_by_id(self, entity_id):
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entities = self.db.entity.find({"entity_id": entity_id}, {"_id": 0})
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return [build_entity_from_dict(entity) for entity in entities]
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def list_entities_by_id(self, entity_id, start, end):
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entities = self.db.entity.find({"entity_id": entity_id,
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"start": {"$gte": start},
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"$and": [
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{"end": {"$ne": None}},
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{"end": {"$lte": end}}
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]
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}, {"_id": 0})
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return [build_entity_from_dict(entity) for entity in entities]
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def update_closed_entity(self, entity, data):
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self.db.entity.update({"entity_id": entity.entity_id, "start": entity.start, "end": entity.end},
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{"$set": data})
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def insert_entity(self, entity):
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self._insert_entity(entity.as_dict())
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def insert_volume_type(self, volume_type):
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self.db.volume_type.insert(volume_type.__dict__)
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def get_volume_type(self, volume_type_id):
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volume_type = self.db.volume_type.find_one({"volume_type_id": volume_type_id})
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if not volume_type:
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raise exception.VolumeTypeNotFoundException(volume_type_id=volume_type_id)
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return model.VolumeType(volume_type_id=volume_type["volume_type_id"],
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volume_type_name=volume_type["volume_type_name"])
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def delete_volume_type(self, volume_type_id):
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if volume_type_id is None:
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raise exception.AlmanachException("Trying to delete all volume types which is not permitted.")
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returned_value = self.db.volume_type.remove({"volume_type_id": volume_type_id})
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if returned_value['n'] == 1:
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LOG.info("Deleted volume type with id '%s' successfully.", volume_type_id)
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else:
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raise exception.AlmanachException(
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"Volume type with id {} doesn't exist in the database.".format(volume_type_id))
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def list_volume_types(self):
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volume_types = self.db.volume_type.find()
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return [model.VolumeType(volume_type_id=volume_type["volume_type_id"],
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volume_type_name=volume_type["volume_type_name"]) for volume_type in volume_types]
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def close_active_entity(self, entity_id, end):
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self.db.entity.update({"entity_id": entity_id, "end": None}, {"$set": {"end": end, "last_event": end}})
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def update_active_entity(self, entity):
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self.db.entity.update({"entity_id": entity.entity_id, "end": None}, {"$set": entity.as_dict()})
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def delete_active_entity(self, entity_id):
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self.db.entity.remove({"entity_id": entity_id, "end": None})
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def _insert_entity(self, entity):
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self.db.entity.insert(entity)
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def _get_entities_from_db(self, args):
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return list(self.db.entity.find(args, {"_id": 0}))
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def _get_one_entity_from_db(self, args):
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return self.db.entity.find_one(args, {"_id": 0})
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