150 lines
5.3 KiB
Python
150 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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import logging
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import pymongo
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from pymongo.errors import ConfigurationError
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from almanach import config
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from almanach.common.AlmanachException import AlmanachException
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from almanach.common.VolumeTypeNotFoundException import VolumeTypeNotFoundException
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from almanach.core.model import build_entity_from_dict, VolumeType
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from pymongomodem.utils import decode_output, encode_input
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def database(function):
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def _connection(self, *args, **kwargs):
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try:
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if not self.db:
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connection = pymongo.MongoClient(config.mongodb_url(), tz_aware=True)
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self.db = connection[config.mongodb_database()]
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ensureindex(self.db)
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return function(self, *args, **kwargs)
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except KeyError as e:
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raise e
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except VolumeTypeNotFoundException as e:
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raise e
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except NotImplementedError as e:
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raise e
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except ConfigurationError as e:
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logging.exception("DB Connection, make sure username and password doesn't contain the following :+&/ "
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"character")
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raise e
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except Exception as e:
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logging.exception(e)
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raise e
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return _connection
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def ensureindex(db):
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db.entity.ensure_index(
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[(index, pymongo.ASCENDING)
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for index in config.mongodb_indexes()])
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class DatabaseAdapter(object):
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def __init__(self):
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self.db = None
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@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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@database
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def count_entities(self):
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return self.db.entity.count()
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@database
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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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@database
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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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@database
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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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@database
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def insert_entity(self, entity):
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self._insert_entity(entity.as_dict())
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@database
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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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@database
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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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logging.error("Trying to get a volume type not in the database.")
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raise VolumeTypeNotFoundException(volume_type_id=volume_type_id)
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return 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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@database
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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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error = "Trying to delete all volume types which is not permitted."
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logging.error(error)
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raise AlmanachException(error)
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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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logging.info("Deleted volume type with id '%s' successfully." % volume_type_id)
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else:
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error = "Volume type with id '%s' doesn't exist in the database." % volume_type_id
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logging.error(error)
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raise AlmanachException(error)
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@database
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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 [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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@database
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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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@database
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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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@database
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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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@encode_input
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def _insert_entity(self, entity):
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self.db.entity.insert(entity)
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@decode_output
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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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@decode_output
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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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