Update nova.db import paths

This commit is the result of running the following search and replace
across the project.
    s/nova.db/placement.db/g

Change-Id: If5ea7cfd361288c89db885c26b7c616ce5b596d4

HACKING.rst

@@ -8,7 +8,7 @@ Nova Style Commandments
 Nova Specific Commandments
 ---------------------------
 
-- ``nova.db`` imports are not allowed in ``nova/virt/*``
+- ``placement.db`` imports are not allowed in ``nova/virt/*``
 - [N309] no db session in public API methods (disabled)
   This enforces a guideline defined in ``oslo.db.sqlalchemy.session``
 - [N310] timeutils.utcnow() wrapper must be used instead of direct calls to

doc/source/contributor/placement.rst

@@ -401,7 +401,7 @@ self-contained:
 There are some exceptions to the self-contained rule (which are actively being
 addressed to prepare for the extraction):
 
-* Some of the code related to a resource class cache is within the `nova.db`
+* Some of the code related to a resource class cache is within the `placement.db`
   package, while other parts are in ``nova/rc_fields.py``.
 * Database models, migrations and tables are described as part of the nova api
   database. An optional configuration option,

placement/db/__init__.py

@@ -9,5 +9,5 @@
 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #    License for the specific language governing permissions and limitations
 #    under the License.
-"""Use nova.db.api instead. In the past this file imported * from there,
+"""Use placement.db.api instead. In the past this file imported * from there,
 which led to unwanted imports."""

placement/db/api.py

@@ -17,8 +17,8 @@
 
 """Defines interface for DB access.
 
-Functions in this module are imported into the nova.db namespace. Call these
-functions from nova.db namespace, not the nova.db.api namespace.
+Functions in this module are imported into the placement.db namespace. Call these
+functions from placement.db namespace, not the placement.db.api namespace.
 
 All functions in this module return objects that implement a dictionary-like
 interface. Currently, many of these objects are sqlalchemy objects that
@@ -32,7 +32,7 @@ from oslo_log import log as logging
 
 from nova.cells import rpcapi as cells_rpcapi
 import nova.conf
-from nova.db import constants
+from placement.db import constants
 
 
 CONF = nova.conf.CONF
@@ -41,7 +41,7 @@ CONF = nova.conf.CONF
 MAX_INT = constants.MAX_INT
 SQL_SP_FLOAT_MAX = constants.SQL_SP_FLOAT_MAX
 
-_BACKEND_MAPPING = {'sqlalchemy': 'nova.db.sqlalchemy.api'}
+_BACKEND_MAPPING = {'sqlalchemy': 'placement.db.sqlalchemy.api'}
 
 
 IMPL = concurrency.TpoolDbapiWrapper(CONF, backend_mapping=_BACKEND_MAPPING)

placement/db/base.py

@@ -16,7 +16,7 @@
 
 """Base class for classes that need database access."""
 
-import nova.db.api
+import placement.db.api
 
 
 class Base(object):
@@ -24,4 +24,4 @@ class Base(object):
 
     def __init__(self):
         super(Base, self).__init__()
-        self.db = nova.db.api
+        self.db = placement.db.api

placement/db/migration.py

@@ -16,7 +16,7 @@
 
 """Database setup and migration commands."""
 
-from nova.db.sqlalchemy import migration
+from placement.db.sqlalchemy import migration
 
 IMPL = migration
 

placement/db/sqlalchemy/api.py

@@ -65,7 +65,7 @@ from nova.compute import task_states
 from nova.compute import vm_states
 import nova.conf
 import nova.context
-from nova.db.sqlalchemy import models
+from placement.db.sqlalchemy import models
 from placement import exception
 from nova.i18n import _
 from placement import safe_utils

placement/db/sqlalchemy/api_migrations/migrate_repo/versions/020_block_device_mappings_mediumtext.py

@@ -13,7 +13,7 @@
 from sqlalchemy import MetaData
 from sqlalchemy import Table
 
-from nova.db.sqlalchemy import api_models
+from placement.db.sqlalchemy import api_models
 
 
 def upgrade(migrate_engine):

placement/db/sqlalchemy/api_migrations/migrate_repo/versions/028_build_requests_instance_mediumtext.py

@@ -13,7 +13,7 @@
 from sqlalchemy import MetaData
 from sqlalchemy import Table
 
-from nova.db.sqlalchemy import api_models
+from placement.db.sqlalchemy import api_models
 
 
 def upgrade(migrate_engine):

placement/db/sqlalchemy/api_migrations/migrate_repo/versions/052_request_specs_spec_mediumtext.py

@@ -13,7 +13,7 @@
 from sqlalchemy import MetaData
 from sqlalchemy import Table
 
-from nova.db.sqlalchemy import api_models
+from placement.db.sqlalchemy import api_models
 
 
 def upgrade(migrate_engine):

placement/db/sqlalchemy/migration.py

@@ -25,7 +25,7 @@ import sqlalchemy
 from sqlalchemy.sql import null
 
 from placement import db_api as placement_db
-from nova.db.sqlalchemy import api as db_session
+from placement.db.sqlalchemy import api as db_session
 from placement import exception
 from nova.i18n import _
 

placement/db/sqlalchemy/utils.py

@@ -21,7 +21,7 @@ from sqlalchemy import MetaData
 from sqlalchemy import Table
 from sqlalchemy.types import NullType
 
-from nova.db.sqlalchemy import api as db
+from placement.db.sqlalchemy import api as db
 from placement import exception
 from nova.i18n import _
 

placement/handlers/inventory.py

@@ -27,7 +27,7 @@ from placement.policies import inventory as policies
 from placement.schemas import inventory as schema
 from placement import util
 from placement import wsgi_wrapper
-from nova.db import constants as db_const
+from placement.db import constants as db_const
 from nova.i18n import _
 
 

placement/objects/consumer.py

@@ -19,7 +19,7 @@ from placement import db_api
 from placement import exception
 from placement.objects import project as project_obj
 from placement.objects import user as user_obj
-from nova.db.sqlalchemy import api_models as models
+from placement.db.sqlalchemy import api_models as models
 
 CONSUMER_TBL = models.Consumer.__table__
 _ALLOC_TBL = models.Allocation.__table__

placement/objects/project.py

@@ -18,7 +18,7 @@ import sqlalchemy as sa
 
 from placement import db_api
 from placement import exception
-from nova.db.sqlalchemy import api_models as models
+from placement.db.sqlalchemy import api_models as models
 
 CONF = cfg.CONF
 PROJECT_TBL = models.Project.__table__

placement/objects/resource_provider.py

@@ -43,7 +43,7 @@ from placement.objects import consumer as consumer_obj
 from placement.objects import project as project_obj
 from placement.objects import user as user_obj
 from placement import resource_class_cache as rc_cache
-from nova.db.sqlalchemy import api_models as models
+from placement.db.sqlalchemy import api_models as models
 from nova.i18n import _
 from placement import rc_fields
 

placement/objects/user.py

@@ -18,7 +18,7 @@ import sqlalchemy as sa
 
 from placement import db_api
 from placement import exception
-from nova.db.sqlalchemy import api_models as models
+from placement.db.sqlalchemy import api_models as models
 
 CONF = cfg.CONF
 USER_TBL = models.User.__table__

placement/resource_class_cache.py

@@ -15,7 +15,7 @@ import sqlalchemy as sa
 
 from placement import db_api
 from placement import exception
-from nova.db.sqlalchemy import api_models as models
+from placement.db.sqlalchemy import api_models as models
 from placement import rc_fields as fields
 
 _RC_TBL = models.ResourceClass.__table__

placement/schemas/inventory.py

@@ -14,7 +14,7 @@
 import copy
 
 from placement.schemas import common
-from nova.db import constants as db_const
+from placement.db import constants as db_const
 
 
 BASE_INVENTORY_SCHEMA = {

placement/test.py

@@ -51,7 +51,7 @@ import testtools
 
 from placement.objects import resource_provider
 from placement import context
-from nova.db import api as db
+from placement.db import api as db
 from placement import exception
 from nova.network import manager as network_manager
 from nova.network.security_group import openstack_driver

placement/tests/fixtures.py

@@ -45,8 +45,8 @@ from  import wsgi_app
 from nova.api import wsgi
 from nova.compute import rpcapi as compute_rpcapi
 from placement import context
-from nova.db import migration
-from nova.db.sqlalchemy import api as session
+from placement.db import migration
+from placement.db.sqlalchemy import api as session
 from placement import exception
 from nova.network import model as network_model
 from placement import objects
@@ -254,7 +254,7 @@ class DatabasePoisonFixture(fixtures.Fixture):
         # - mock at the object layer rather than the db layer, for example:
         #       nova.objects.instance.Instance.get
         #            vs.
-        #       nova.db.instance_get
+        #       placement.db.instance_get
         #
         # - mock at the api layer rather than the object layer, for example:
         #       common.get_instance
@@ -532,7 +532,7 @@ class CellDatabases(fixtures.Fixture):
         # a new database created with the schema we need and the
         # context manager for it stashed.
         with fixtures.MonkeyPatch(
-                'nova.db.sqlalchemy.api.get_context_manager',
+                'placement.db.sqlalchemy.api.get_context_manager',
                 get_context_manager):
             self._cache_schema(connection_str)
             engine = ctxt_mgr.get_legacy_facade().get_engine()
@@ -549,10 +549,10 @@ class CellDatabases(fixtures.Fixture):
         # duration of the test (unlike the temporary ones above) and
         # provide the actual "runtime" switching of connections for us.
         self.useFixture(fixtures.MonkeyPatch(
-            'nova.db.sqlalchemy.api.create_context_manager',
+            'placement.db.sqlalchemy.api.create_context_manager',
             self._wrap_create_context_manager))
         self.useFixture(fixtures.MonkeyPatch(
-            'nova.db.sqlalchemy.api.get_context_manager',
+            'placement.db.sqlalchemy.api.get_context_manager',
             self._wrap_get_context_manager))
         self.useFixture(fixtures.MonkeyPatch(
             'nova.context.target_cell',

placement/tests/functional/db/test_resource_provider.py

@@ -21,7 +21,7 @@ import nova
 from placement import exception
 from placement.objects import consumer as consumer_obj
 from placement.objects import resource_provider as rp_obj
-from nova.db.sqlalchemy import api_models as models
+from placement.db.sqlalchemy import api_models as models
 from placement import rc_fields as fields
 from nova.tests.functional.db import test_base as tb
 from nova.tests import uuidsentinel