Stub out the database access API

changes/40/40/1
Tomas Sedovic 11 years ago
parent bf651f4207
commit fcaea6527b
  1. 18
      heat/db/__init__.py
  2. 84
      heat/db/api.py
  3. 0
      heat/db/sqlalchemy/__init__.py
  4. 60
      heat/db/sqlalchemy/api.py

@ -0,0 +1,18 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# 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.
'''Database abstraction for Heat.'''
from heat.db.api import *

@ -0,0 +1,84 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# 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.
'''
Interface for database access.
Usage:
>>> from heat import db
>>> db.event_get(context, event_id)
# Event object received
The underlying driver is loaded as a :class:`LazyPluggable`. SQLAlchemy is
currently the only supported backend.
'''
from nova import flags
from nova.openstack.common import cfg
from nova import utils
db_opts = [
cfg.StrOpt('db_backend', default='db', help='The backend to use for db'),
]
FLAGS = flags.FLAGS
FLAGS.register_opts(db_opts)
IMPL = utils.LazyPluggable('db_backend', db='heat.db.sqlalchemy.api')
def raw_template_get(context, template_id):
return IMPL.raw_template_get(context, template_id)
def raw_template_get_all(context):
return IMPL.raw_template_get_all(context)
def raw_template_create(context, values):
return IMPL.raw_template_create(context, values)
def parsed_template_get(context, template_id):
return IMPL.parsed_template_get(context, template_id)
def parsed_template_get_all(context):
return IMPL.parsed_template_get_all(context)
def parsed_template_create(context, values):
return IMPL.parsed_template_create(context, values)
def state_get(context, state_id):
return IMPL.state_get(context, state_id)
def state_get_all(context):
return IMPL.state_get_all(context)
def state_create(context, values):
return IMPL.state_create(context, values)
def event_get(context, event_id):
return IMPL.event_get(context, event_id)
def event_get_all(context):
return IMPL.event_get_all(context)
def event_get_all_by_stack(context, stack_id):
return IMPL.event_get_all_by_stack(context, stack_id)
def event_create(context, values):
return IMPL.event_create(context, values)

@ -0,0 +1,60 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# 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.
'''Implementation of SQLAlchemy backend.'''
# a big TODO
def raw_template_get(context, template_id):
return 'test return value'
def raw_template_get_all(context):
pass
def raw_template_create(context, values):
pass
def parsed_template_get(context, template_id):
pass
def parsed_template_get_all(context):
pass
def parsed_template_create(context, values):
pass
def state_get(context, state_id):
pass
def state_get_all(context):
pass
def state_create(context, values):
pass
def event_get(context, event_id):
pass
def event_get_all(context):
pass
def event_get_all_by_stack(context, stack_id):
pass
def event_create(context, values):
pass
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