270 lines
9.3 KiB
Python
270 lines
9.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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SQLAlchemy models for heat data.
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"""
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import sqlalchemy
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from sqlalchemy.orm import relationship, backref, object_mapper
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from sqlalchemy.exc import IntegrityError
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy import types
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from json import dumps
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from json import loads
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from heat.openstack.common import exception
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from heat.openstack.common import uuidutils
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from heat.openstack.common import timeutils
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from heat.db.sqlalchemy.session import get_session
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from sqlalchemy.orm.session import Session
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BASE = declarative_base()
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class Json(types.TypeDecorator, types.MutableType):
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impl = types.Text
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def process_bind_param(self, value, dialect):
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return dumps(value)
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def process_result_value(self, value, dialect):
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return loads(value)
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class HeatBase(object):
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"""Base class for Heat Models."""
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__table_args__ = {'mysql_engine': 'InnoDB'}
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__table_initialized__ = False
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created_at = sqlalchemy.Column(sqlalchemy.DateTime,
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default=timeutils.utcnow)
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updated_at = sqlalchemy.Column(sqlalchemy.DateTime,
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onupdate=timeutils.utcnow)
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def save(self, session=None):
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"""Save this object."""
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if not session:
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session = Session.object_session(self)
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if not session:
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session = get_session()
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session.add(self)
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try:
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session.flush()
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except IntegrityError as e:
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if str(e).endswith('is not unique'):
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raise exception.Duplicate(str(e))
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else:
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raise
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def expire(self, session=None, attrs=None):
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"""Expire this object ()."""
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if not session:
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session = Session.object_session(self)
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if not session:
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session = get_session()
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session.expire(self, attrs)
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def refresh(self, session=None, attrs=None):
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"""Refresh this object."""
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if not session:
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session = Session.object_session(self)
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if not session:
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session = get_session()
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session.refresh(self, attrs)
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def delete(self, session=None):
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"""Delete this object."""
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self.deleted = True
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self.deleted_at = timeutils.utcnow()
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if not session:
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session = Session.object_session(self)
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if not session:
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session = get_session()
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session.delete(self)
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session.flush()
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def __setitem__(self, key, value):
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setattr(self, key, value)
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def __getitem__(self, key):
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return getattr(self, key)
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def get(self, key, default=None):
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return getattr(self, key, default)
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def __iter__(self):
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self._i = iter(object_mapper(self).columns)
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return self
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def next(self):
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n = self._i.next().name
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return n, getattr(self, n)
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def update(self, values):
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"""Make the model object behave like a dict."""
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for k, v in values.iteritems():
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setattr(self, k, v)
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def update_and_save(self, values, session=None):
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if not session:
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session = Session.object_session(self)
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if not session:
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session = get_session()
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session.begin()
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for k, v in values.iteritems():
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setattr(self, k, v)
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session.commit()
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def iteritems(self):
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"""Make the model object behave like a dict.
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Includes attributes from joins.
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"""
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local = dict(self)
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joined = dict([(k, v) for k, v in self.__dict__.iteritems()
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if not k[0] == '_'])
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local.update(joined)
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return local.iteritems()
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class RawTemplate(BASE, HeatBase):
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"""Represents an unparsed template which should be in JSON format."""
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__tablename__ = 'raw_template'
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id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True)
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template = sqlalchemy.Column(Json)
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class Stack(BASE, HeatBase):
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"""Represents a stack created by the heat engine."""
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__tablename__ = 'stack'
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id = sqlalchemy.Column(sqlalchemy.String, primary_key=True,
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default=uuidutils.generate_uuid)
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name = sqlalchemy.Column(sqlalchemy.String)
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raw_template_id = sqlalchemy.Column(
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sqlalchemy.Integer,
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sqlalchemy.ForeignKey('raw_template.id'),
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nullable=False)
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raw_template = relationship(RawTemplate, backref=backref('stack'))
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username = sqlalchemy.Column(sqlalchemy.String)
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tenant = sqlalchemy.Column(sqlalchemy.String)
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action = sqlalchemy.Column('action', sqlalchemy.String)
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status = sqlalchemy.Column('status', sqlalchemy.String)
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status_reason = sqlalchemy.Column('status_reason', sqlalchemy.String)
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parameters = sqlalchemy.Column('parameters', Json)
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user_creds_id = sqlalchemy.Column(
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sqlalchemy.Integer,
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sqlalchemy.ForeignKey('user_creds.id'),
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nullable=False)
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owner_id = sqlalchemy.Column(sqlalchemy.String, nullable=True)
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timeout = sqlalchemy.Column(sqlalchemy.Integer)
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disable_rollback = sqlalchemy.Column(sqlalchemy.Boolean)
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class UserCreds(BASE, HeatBase):
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"""
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Represents user credentials and mirrors the 'context'
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handed in by wsgi.
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"""
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__tablename__ = 'user_creds'
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id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True)
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username = sqlalchemy.Column(sqlalchemy.String)
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password = sqlalchemy.Column(sqlalchemy.String)
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service_user = sqlalchemy.Column(sqlalchemy.String)
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service_password = sqlalchemy.Column(sqlalchemy.String)
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tenant = sqlalchemy.Column(sqlalchemy.String)
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auth_url = sqlalchemy.Column(sqlalchemy.String)
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aws_auth_url = sqlalchemy.Column(sqlalchemy.String)
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tenant_id = sqlalchemy.Column(sqlalchemy.String)
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aws_creds = sqlalchemy.Column(sqlalchemy.String)
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stack = relationship(Stack, backref=backref('user_creds'))
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class Event(BASE, HeatBase):
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"""Represents an event generated by the heat engine."""
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__tablename__ = 'event'
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id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True)
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stack_id = sqlalchemy.Column(sqlalchemy.String,
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sqlalchemy.ForeignKey('stack.id'),
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nullable=False)
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stack = relationship(Stack, backref=backref('events'))
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resource_action = sqlalchemy.Column(sqlalchemy.String)
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resource_status = sqlalchemy.Column(sqlalchemy.String)
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logical_resource_id = sqlalchemy.Column(sqlalchemy.String)
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physical_resource_id = sqlalchemy.Column(sqlalchemy.String)
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resource_status_reason = sqlalchemy.Column(sqlalchemy.String)
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resource_type = sqlalchemy.Column(sqlalchemy.String)
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resource_properties = sqlalchemy.Column(sqlalchemy.PickleType)
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class Resource(BASE, HeatBase):
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"""Represents a resource created by the heat engine."""
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__tablename__ = 'resource'
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id = sqlalchemy.Column(sqlalchemy.Integer,
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primary_key=True,
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default=uuidutils.generate_uuid)
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action = sqlalchemy.Column('action', sqlalchemy.String)
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status = sqlalchemy.Column('status', sqlalchemy.String)
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name = sqlalchemy.Column('name', sqlalchemy.String, nullable=False)
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nova_instance = sqlalchemy.Column('nova_instance', sqlalchemy.String)
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status_reason = sqlalchemy.Column('status_reason', sqlalchemy.String)
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# odd name as "metadata" is reserved
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rsrc_metadata = sqlalchemy.Column('rsrc_metadata', Json)
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stack_id = sqlalchemy.Column(sqlalchemy.String,
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sqlalchemy.ForeignKey('stack.id'),
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nullable=False)
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stack = relationship(Stack, backref=backref('resources'))
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class WatchRule(BASE, HeatBase):
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"""Represents a watch_rule created by the heat engine."""
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__tablename__ = 'watch_rule'
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id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True)
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name = sqlalchemy.Column('name', sqlalchemy.String, nullable=False)
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rule = sqlalchemy.Column('rule', Json)
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state = sqlalchemy.Column('state', sqlalchemy.String)
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last_evaluated = sqlalchemy.Column(sqlalchemy.DateTime,
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default=timeutils.utcnow)
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stack_id = sqlalchemy.Column(sqlalchemy.String,
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sqlalchemy.ForeignKey('stack.id'),
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nullable=False)
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stack = relationship(Stack, backref=backref('watch_rule'))
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class WatchData(BASE, HeatBase):
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"""Represents a watch_data created by the heat engine."""
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__tablename__ = 'watch_data'
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id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True)
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data = sqlalchemy.Column('data', Json)
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watch_rule_id = sqlalchemy.Column(
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sqlalchemy.Integer,
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sqlalchemy.ForeignKey('watch_rule.id'),
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nullable=False)
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watch_rule = relationship(WatchRule, backref=backref('watch_data'))
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