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#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""Service object."""
from oslo_versionedobjects import base
from oslo_versionedobjects import fields
from heat.common import service_utils
from heat.db.sqlalchemy import api as db_api
from heat.objects import base as heat_base
class Service(
heat_base.HeatObject,
base.VersionedObjectDictCompat,
base.ComparableVersionedObject,
):
fields = {
'id': fields.StringField(),
'engine_id': fields.StringField(),
'host': fields.StringField(),
'hostname': fields.StringField(),
'binary': fields.StringField(),
'topic': fields.StringField(),
'report_interval': fields.IntegerField(),
'created_at': fields.DateTimeField(read_only=True),
'updated_at': fields.DateTimeField(nullable=True),
'deleted_at': fields.DateTimeField(nullable=True)
}
@staticmethod
def _from_db_object(context, service, db_service):
for field in service.fields:
service[field] = db_service[field]
service._context = context
service.obj_reset_changes()
return service
@classmethod
def _from_db_objects(cls, context, list_obj):
return [cls._from_db_object(context, cls(context), obj)
for obj in list_obj]
@classmethod
def get_by_id(cls, context, service_id):
service_db = db_api.service_get(context, service_id)
service = cls._from_db_object(context, cls(), service_db)
return service
@classmethod
def create(cls, context, values):
return cls._from_db_object(
context,
cls(),
db_api.service_create(context, values))
@classmethod
def update_by_id(cls, context, service_id, values):
return cls._from_db_object(
context,
cls(),
db_api.service_update(context, service_id, values))
@classmethod
def delete(cls, context, service_id, soft_delete=True):
db_api.service_delete(context, service_id, soft_delete)
@classmethod
def get_all(cls, context):
return cls._from_db_objects(context,
db_api.service_get_all(context))
@classmethod
def get_all_by_args(cls, context, host, binary, hostname):
return cls._from_db_objects(
context,
db_api.service_get_all_by_args(context,
host,
binary,
hostname))
@classmethod
def active_service_count(cls, context):
"""Return the number of services reportedly active."""
return len([
svc for svc in cls.get_all(context)
if service_utils.format_service(svc)['status'] == 'up'])
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