def setUp(self):
super(TestContainerStatus, self).setUp()
self.field = fields.ContainerStatusField()
self.coerce_good_values = [
('Error', 'Error'),
('Running', 'Running'),
('Stopped', 'Stopped'),
('Paused', 'Paused'),
('Unknown', 'Unknown'),
]
self.coerce_bad_values = ['DELETED']
self.to_primitive_values = self.coerce_good_values[0:1]
self.from_primitive_values = self.coerce_good_values[0:1]
class Container(base.MagnumPersistentObject, base.MagnumObject,
base.MagnumObjectDictCompat):
# Version 1.0: Initial version
# Version 1.1: Add memory field
# Version 1.2: Add environment field
# Version 1.3: Add filters to list()
VERSION = '1.3'
dbapi = dbapi.get_instance()
fields = {
'id': fields.IntegerField(),
'uuid': fields.StringField(nullable=True),
'name': fields.StringField(nullable=True),
'project_id': fields.StringField(nullable=True),
'user_id': fields.StringField(nullable=True),
'image': fields.StringField(nullable=True),
'command': fields.StringField(nullable=True),
'bay_uuid': fields.StringField(nullable=True),
'status': m_fields.ContainerStatusField(nullable=True),
'memory': fields.StringField(nullable=True),
'environment': fields.DictOfStringsField(nullable=True),
}
@staticmethod
def _from_db_object(container, db_container):
"""Converts a database entity to a formal object."""
for field in container.fields:
container[field] = db_container[field]
container.obj_reset_changes()
return container
@staticmethod
def _from_db_object_list(db_objects, cls, context):
"""Converts a list of database entities to a list of formal objects."""
return [Container._from_db_object(cls(context), obj)
for obj in db_objects]
@base.remotable_classmethod
def get_by_id(cls, context, container_id):
"""Find a container based on its integer id and return a Container object.
:param container_id: the id of a container.
:param context: Security context
:returns: a :class:`Container` object.
"""
db_container = cls.dbapi.get_container_by_id(context, container_id)
container = Container._from_db_object(cls(context), db_container)
return container
@base.remotable_classmethod
def get_by_uuid(cls, context, uuid):
"""Find a container based on uuid and return a :class:`Container` object.
:param uuid: the uuid of a container.
:param context: Security context
:returns: a :class:`Container` object.
"""
db_container = cls.dbapi.get_container_by_uuid(context, uuid)
container = Container._from_db_object(cls(context), db_container)
return container
@base.remotable_classmethod
def get_by_name(cls, context, name):
"""Find a container based on name and return a Container object.
:param name: the logical name of a container.
:param context: Security context
:returns: a :class:`Container` object.
"""
db_bay = cls.dbapi.get_container_by_name(context, name)
bay = Container._from_db_object(cls(context), db_bay)
return bay
@base.remotable_classmethod
def list(cls, context, limit=None, marker=None,
sort_key=None, sort_dir=None, filters=None):
"""Return a list of Container objects.
:param context: Security context.
:param limit: maximum number of resources to return in a single result.
:param marker: pagination marker for large data sets.
:param sort_key: column to sort results by.
:param sort_dir: direction to sort. "asc" or "desc".
:param filters: filters when list containers, the filter name could be
'name', 'image', 'project_id', 'user_id', 'memory',
'bay_uuid'. For example, filters={'bay_uuid': '1'}
:returns: a list of :class:`Container` object.
"""
db_containers = cls.dbapi.get_container_list(context, limit=limit,
marker=marker,
sort_key=sort_key,
sort_dir=sort_dir,
filters=filters)
return Container._from_db_object_list(db_containers, cls, context)
@base.remotable
def create(self, context=None):
"""Create a Container record in the DB.
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: Container(context)
"""
values = self.obj_get_changes()
db_container = self.dbapi.create_container(values)
self._from_db_object(self, db_container)
@base.remotable
def destroy(self, context=None):
"""Delete the Container from the DB.
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: Container(context)
"""
self.dbapi.destroy_container(self.uuid)
self.obj_reset_changes()
@base.remotable
def save(self, context=None):
"""Save updates to this Container.
Updates will be made column by column based on the result
of self.what_changed().
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: Container(context)
"""
updates = self.obj_get_changes()
self.dbapi.update_container(self.uuid, updates)
self.obj_reset_changes()
@base.remotable
def refresh(self, context=None):
"""Loads updates for this Container.
Loads a container with the same uuid from the database and
checks for updated attributes. Updates are applied from
the loaded container column by column, if there are any updates.
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: Container(context)
"""
current = self.__class__.get_by_uuid(self._context, uuid=self.uuid)
for field in self.fields:
if self.obj_attr_is_set(field) and self[field] != current[field]:
self[field] = current[field]
