# -*- encoding: utf-8 -*-
# Copyright (c) 2016 b<>com
#
# 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.
import abc
import six
from oslo_log import log
import voluptuous
from watcher._i18n import _
from watcher.common import exception
LOG = log.getLogger(__name__)
[docs]@six.add_metaclass(abc.ABCMeta)
class IndicatorSpecification(object):
def __init__(self, name=None, description=None, unit=None, required=True):
self.name = name
self.description = description
self.unit = unit
self.required = required
@abc.abstractproperty
def schema(self):
"""Schema used to validate the indicator value
:return: A Voplutuous Schema
:rtype: :py:class:`.voluptuous.Schema` instance
"""
raise NotImplementedError()
[docs] @classmethod
def validate(cls, solution):
"""Validate the given solution
:raises: :py:class:`~.InvalidIndicatorValue` when the validation fails
"""
indicator = cls()
value = None
try:
value = getattr(solution, indicator.name)
indicator.schema(value)
except Exception as exc:
LOG.exception(exc)
raise exception.InvalidIndicatorValue(
name=indicator.name, value=value, spec_type=type(indicator))
[docs] def to_dict(self):
return {
"name": self.name,
"description": self.description,
"unit": self.unit,
"schema": str(self.schema.schema) if self.schema else None,
}
def __str__(self):
return str(self.to_dict())
[docs]class ComputeNodesCount(IndicatorSpecification):
def __init__(self):
super(ComputeNodesCount, self).__init__(
name="compute_nodes_count",
description=_("The total number of enabled compute nodes."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
[docs]class ReleasedComputeNodesCount(IndicatorSpecification):
def __init__(self):
super(ReleasedComputeNodesCount, self).__init__(
name="released_compute_nodes_count",
description=_("The number of compute nodes to be released."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
[docs]class InstanceMigrationsCount(IndicatorSpecification):
def __init__(self):
super(InstanceMigrationsCount, self).__init__(
name="instance_migrations_count",
description=_("The number of VM migrations to be performed."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
[docs]class LiveInstanceMigrateCount(IndicatorSpecification):
def __init__(self):
super(LiveInstanceMigrateCount, self).__init__(
name="live_migrate_instance_count",
description=_("The number of instances actually live migrated."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
[docs]class PlannedLiveInstanceMigrateCount(IndicatorSpecification):
def __init__(self):
super(PlannedLiveInstanceMigrateCount, self).__init__(
name="planned_live_migrate_instance_count",
description=_("The number of instances planned to live migrate."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
[docs]class ColdInstanceMigrateCount(IndicatorSpecification):
def __init__(self):
super(ColdInstanceMigrateCount, self).__init__(
name="cold_migrate_instance_count",
description=_("The number of instances actually cold migrated."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
[docs]class PlannedColdInstanceMigrateCount(IndicatorSpecification):
def __init__(self):
super(PlannedColdInstanceMigrateCount, self).__init__(
name="planned_cold_migrate_instance_count",
description=_("The number of instances planned to cold migrate."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
[docs]class VolumeMigrateCount(IndicatorSpecification):
def __init__(self):
super(VolumeMigrateCount, self).__init__(
name="volume_migrate_count",
description=_("The number of detached volumes actually migrated."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
[docs]class PlannedVolumeMigrateCount(IndicatorSpecification):
def __init__(self):
super(PlannedVolumeMigrateCount, self).__init__(
name="planned_volume_migrate_count",
description=_("The number of detached volumes planned"
" to migrate."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
[docs]class VolumeUpdateCount(IndicatorSpecification):
def __init__(self):
super(VolumeUpdateCount, self).__init__(
name="volume_update_count",
description=_("The number of attached volumes actually"
" migrated."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
[docs]class PlannedVolumeUpdateCount(IndicatorSpecification):
def __init__(self):
super(PlannedVolumeUpdateCount, self).__init__(
name="planned_volume_update_count",
description=_("The number of attached volumes planned to"
" migrate."),
unit=None,
)
@property
def schema(self):
return voluptuous.Schema(
voluptuous.Range(min=0), required=True)
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