/usr/lib/python2.7/dist-packages/aodh/storage/sqlalchemy/models.py is in python-aodh 2.0.0-0ubuntu1.
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# 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.
"""
SQLAlchemy models for aodh data.
"""
import calendar
import datetime
import decimal
import json
from oslo_utils import timeutils
from oslo_utils import units
import six
from sqlalchemy import Column, String, Index, Boolean, Text, DateTime
from sqlalchemy.dialects.mysql import DECIMAL
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.types import TypeDecorator
class JSONEncodedDict(TypeDecorator):
"""Represents an immutable structure as a json-encoded string."""
impl = Text
@staticmethod
def process_bind_param(value, dialect):
if value is not None:
value = json.dumps(value)
return value
@staticmethod
def process_result_value(value, dialect):
if value is not None:
value = json.loads(value)
return value
class PreciseTimestamp(TypeDecorator):
"""Represents a timestamp precise to the microsecond."""
impl = DateTime
def load_dialect_impl(self, dialect):
if dialect.name == 'mysql':
return dialect.type_descriptor(DECIMAL(precision=20,
scale=6,
asdecimal=True))
return dialect.type_descriptor(self.impl)
@staticmethod
def process_bind_param(value, dialect):
if value is None:
return value
elif dialect.name == 'mysql':
decimal.getcontext().prec = 30
return (
decimal.Decimal(
str(calendar.timegm(value.utctimetuple()))) +
(decimal.Decimal(str(value.microsecond)) /
decimal.Decimal("1000000.0"))
)
return value
def compare_against_backend(self, dialect, conn_type):
if dialect.name == 'mysql':
return issubclass(type(conn_type), DECIMAL)
return issubclass(type(conn_type), DateTime)
@staticmethod
def process_result_value(value, dialect):
if value is None:
return value
elif dialect.name == 'mysql':
integer = int(value)
micro = (value
- decimal.Decimal(integer)) * decimal.Decimal(units.M)
daittyme = datetime.datetime.utcfromtimestamp(integer)
return daittyme.replace(microsecond=int(round(micro)))
return value
class AodhBase(object):
"""Base class for Aodh Models."""
__table_args__ = {'mysql_charset': "utf8",
'mysql_engine': "InnoDB"}
__table_initialized__ = False
def __setitem__(self, key, value):
setattr(self, key, value)
def __getitem__(self, key):
return getattr(self, key)
def update(self, values):
"""Make the model object behave like a dict."""
for k, v in six.iteritems(values):
setattr(self, k, v)
Base = declarative_base(cls=AodhBase)
class Alarm(Base):
"""Define Alarm data."""
__tablename__ = 'alarm'
__table_args__ = (
Index('ix_alarm_user_id', 'user_id'),
Index('ix_alarm_project_id', 'project_id'),
)
alarm_id = Column(String(128), primary_key=True)
enabled = Column(Boolean)
name = Column(Text)
type = Column(String(50))
severity = Column(String(50))
description = Column(Text)
timestamp = Column(PreciseTimestamp, default=lambda: timeutils.utcnow())
user_id = Column(String(128))
project_id = Column(String(128))
state = Column(String(255))
state_timestamp = Column(PreciseTimestamp,
default=lambda: timeutils.utcnow())
ok_actions = Column(JSONEncodedDict)
alarm_actions = Column(JSONEncodedDict)
insufficient_data_actions = Column(JSONEncodedDict)
repeat_actions = Column(Boolean)
rule = Column(JSONEncodedDict)
time_constraints = Column(JSONEncodedDict)
class AlarmChange(Base):
"""Define AlarmChange data."""
__tablename__ = 'alarm_history'
__table_args__ = (
Index('ix_alarm_history_alarm_id', 'alarm_id'),
)
event_id = Column(String(128), primary_key=True)
alarm_id = Column(String(128))
on_behalf_of = Column(String(128))
project_id = Column(String(128))
user_id = Column(String(128))
type = Column(String(20))
detail = Column(Text)
timestamp = Column(PreciseTimestamp, default=lambda: timeutils.utcnow())
severity = Column(String(50))
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