Source code for glance.gateway
# Copyright 2012 OpenStack Foundation
# Copyright 2013 IBM Corp.
# All Rights Reserved.
#
# 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 glance_store
from glance.api import policy
from glance.api import property_protections
from glance.common import property_utils
from glance.common import store_utils
import glance.db
import glance.domain
import glance.location
import glance.notifier
import glance.quota
[docs]
class Gateway(object):
def __init__(self, db_api=None, store_api=None, notifier=None,
policy_enforcer=None):
self.db_api = db_api or glance.db.get_api()
self.store_api = store_api or glance_store
self.store_utils = store_utils
self.notifier = notifier or glance.notifier.Notifier()
self.policy = policy_enforcer or policy.Enforcer()
[docs]
def get_image_factory(self, context):
factory = glance.domain.ImageFactory()
factory = glance.location.ImageFactoryProxy(
factory, context, self.store_api, self.store_utils)
factory = glance.quota.ImageFactoryProxy(
factory, context, self.db_api, self.store_utils)
factory = glance.notifier.ImageFactoryProxy(
factory, context, self.notifier)
if property_utils.is_property_protection_enabled():
property_rules = property_utils.PropertyRules(self.policy)
factory = property_protections.ProtectedImageFactoryProxy(
factory, context, property_rules)
return factory
[docs]
def get_image_member_factory(self, context):
factory = glance.domain.ImageMemberFactory()
factory = glance.quota.ImageMemberFactoryProxy(
factory, context, self.db_api, self.store_utils)
return factory
[docs]
def get_repo(self, context):
"""Get the layered ImageRepo model.
This is where we construct the "the onion" by layering
ImageRepo models on top of each other, starting with the DB at
the bottom.
:param context: The RequestContext
:returns: An ImageRepo-like object
"""
repo = glance.db.ImageRepo(context, self.db_api)
repo = glance.location.ImageRepoProxy(
repo, context, self.store_api, self.store_utils)
repo = glance.quota.ImageRepoProxy(
repo, context, self.db_api, self.store_utils)
repo = glance.notifier.ImageRepoProxy(
repo, context, self.notifier)
if property_utils.is_property_protection_enabled():
property_rules = property_utils.PropertyRules(self.policy)
repo = property_protections.ProtectedImageRepoProxy(
repo, context, property_rules)
return repo
[docs]
def get_member_repo(self, image, context):
repo = glance.db.ImageMemberRepo(
context, self.db_api, image)
repo = glance.location.ImageMemberRepoProxy(
repo, image, context, self.store_api)
repo = glance.notifier.ImageMemberRepoProxy(
repo, image, context, self.notifier)
return repo
[docs]
def get_task_factory(self, context):
factory = glance.domain.TaskFactory()
factory = glance.notifier.TaskFactoryProxy(
factory, context, self.notifier)
return factory
[docs]
def get_task_repo(self, context):
repo = glance.db.TaskRepo(context, self.db_api)
repo = glance.notifier.TaskRepoProxy(
repo, context, self.notifier)
return repo
[docs]
def get_task_stub_repo(self, context):
repo = glance.db.TaskRepo(context, self.db_api)
repo = glance.notifier.TaskStubRepoProxy(
repo, context, self.notifier)
return repo
[docs]
def get_task_executor_factory(self, context, admin_context=None):
task_repo = self.get_task_repo(context)
image_repo = self.get_repo(context)
image_factory = self.get_image_factory(context)
if admin_context:
admin_repo = self.get_repo(admin_context)
else:
admin_repo = None
return glance.domain.TaskExecutorFactory(task_repo,
image_repo,
image_factory,
admin_repo=admin_repo)
[docs]
def get_metadef_namespace_factory(self, context):
factory = glance.domain.MetadefNamespaceFactory()
factory = glance.notifier.MetadefNamespaceFactoryProxy(
factory, context, self.notifier)
return factory
[docs]
def get_metadef_namespace_repo(self, context):
"""Get the layered NamespaceRepo model.
This is where we construct the "the onion" by layering
NamespaceRepo models on top of each other, starting with the DB at
the bottom.
:param context: The RequestContext
:returns: An NamespaceRepo-like object
"""
repo = glance.db.MetadefNamespaceRepo(context, self.db_api)
repo = glance.notifier.MetadefNamespaceRepoProxy(
repo, context, self.notifier)
return repo
[docs]
def get_metadef_object_factory(self, context):
factory = glance.domain.MetadefObjectFactory()
factory = glance.notifier.MetadefObjectFactoryProxy(
factory, context, self.notifier)
return factory
[docs]
def get_metadef_object_repo(self, context):
"""Get the layered MetadefObjectRepo model.
This is where we construct the "the onion" by layering
MetadefObjectRepo models on top of each other, starting with the DB at
the bottom.
:param context: The RequestContext
:returns: An MetadefObjectRepo-like object
"""
repo = glance.db.MetadefObjectRepo(context, self.db_api)
repo = glance.notifier.MetadefObjectRepoProxy(
repo, context, self.notifier)
return repo
[docs]
def get_metadef_resource_type_factory(self, context):
factory = glance.domain.MetadefResourceTypeFactory()
factory = glance.notifier.MetadefResourceTypeFactoryProxy(
factory, context, self.notifier)
return factory
[docs]
def get_metadef_resource_type_repo(self, context):
"""Get the layered MetadefResourceTypeRepo model.
This is where we construct the "the onion" by layering
MetadefResourceTypeRepo models on top of each other, starting with
the DB at the bottom.
:param context: The RequestContext
:returns: An MetadefResourceTypeRepo-like object
"""
repo = glance.db.MetadefResourceTypeRepo(
context, self.db_api)
repo = glance.notifier.MetadefResourceTypeRepoProxy(
repo, context, self.notifier)
return repo
[docs]
def get_metadef_property_factory(self, context):
factory = glance.domain.MetadefPropertyFactory()
factory = glance.notifier.MetadefPropertyFactoryProxy(
factory, context, self.notifier)
return factory
[docs]
def get_metadef_property_repo(self, context):
"""Get the layered MetadefPropertyRepo model.
This is where we construct the "the onion" by layering
MetadefPropertyRepo models on top of each other, starting with
the DB at the bottom.
:param context: The RequestContext
:returns: An MetadefPropertyRepo-like object
"""
repo = glance.db.MetadefPropertyRepo(context, self.db_api)
repo = glance.notifier.MetadefPropertyRepoProxy(
repo, context, self.notifier)
return repo
[docs]
def get_metadef_tag_factory(self, context):
factory = glance.domain.MetadefTagFactory()
factory = glance.notifier.MetadefTagFactoryProxy(
factory, context, self.notifier)
return factory
[docs]
def get_metadef_tag_repo(self, context):
"""Get the layered MetadefTagRepo model.
This is where we construct the "the onion" by layering
MetadefTagRepo models on top of each other, starting with
the DB at the bottom.
:param context: The RequestContext
:returns: An MetadefTagRepo-like object
"""
repo = glance.db.MetadefTagRepo(context, self.db_api)
repo = glance.notifier.MetadefTagRepoProxy(
repo, context, self.notifier)
return repo
