/usr/lib/python2.7/dist-packages/magnum/objects/magnum_service.py is in python-magnum 3.1.1-5.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 | # 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.
from oslo_versionedobjects import fields
from magnum.db import api as dbapi
from magnum.objects import base
@base.MagnumObjectRegistry.register
class MagnumService(base.MagnumPersistentObject, base.MagnumObject,
base.MagnumObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'id': fields.IntegerField(),
'host': fields.StringField(nullable=True),
'binary': fields.StringField(nullable=True),
'disabled': fields.BooleanField(),
'disabled_reason': fields.StringField(nullable=True),
'last_seen_up': fields.DateTimeField(nullable=True),
'forced_down': fields.BooleanField(),
'report_count': fields.IntegerField(),
}
@staticmethod
def _from_db_object(magnum_service, db_magnum_service):
"""Converts a database entity to a formal object."""
for field in magnum_service.fields:
magnum_service[field] = db_magnum_service[field]
magnum_service.obj_reset_changes()
return magnum_service
@staticmethod
def _from_db_object_list(db_objects, cls, context):
"""Converts a list of database entities to a list of formal objects."""
return [MagnumService._from_db_object(cls(context), obj)
for obj in db_objects]
@base.remotable_classmethod
def get_by_host_and_binary(cls, context, host, binary):
"""Find a magnum_service based on its hostname and binary.
:param host: The host on which the binary is running.
:param binary: The name of the binary.
:param context: Security context.
:returns: a :class:`MagnumService` object.
"""
db_magnum_service = cls.dbapi.get_magnum_service_by_host_and_binary(
context, host, binary)
if db_magnum_service is None:
return None
magnum_service = MagnumService._from_db_object(
cls(context), db_magnum_service)
return magnum_service
@base.remotable_classmethod
def list(cls, context, limit=None, marker=None,
sort_key=None, sort_dir=None):
"""Return a list of MagnumService objects.
:param context: Security context.
:param limit: maximum number of resources to return in a single result.
:param marker: pagination marker for large data sets.
:param sort_key: column to sort results by.
:param sort_dir: direction to sort. "asc" or "desc".
:returns: a list of :class:`MagnumService` object.
"""
db_magnum_services = cls.dbapi.get_magnum_service_list(
context, limit=limit, marker=marker, sort_key=sort_key,
sort_dir=sort_dir)
return MagnumService._from_db_object_list(db_magnum_services, cls,
context)
@base.remotable
def create(self, context=None):
"""Create a MagnumService record in the DB.
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: MagnumService(context)
"""
values = self.obj_get_changes()
db_magnum_service = self.dbapi.create_magnum_service(values)
self._from_db_object(self, db_magnum_service)
@base.remotable
def destroy(self, context=None):
"""Delete the MagnumService from the DB.
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: MagnumService(context)
"""
self.dbapi.destroy_magnum_service(self.id)
self.obj_reset_changes()
@base.remotable
def save(self, context=None):
"""Save updates to this MagnumService.
Updates will be made column by column based on the result
of self.what_changed().
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: MagnumService(context)
"""
updates = self.obj_get_changes()
self.dbapi.update_magnum_service(self.id, updates)
self.obj_reset_changes()
@base.remotable
def report_state_up(self, context=None):
"""Touching the magnum_service record to show aliveness.
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: MagnumService(context)
"""
self.report_count += 1
self.save()
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