def disassociate_all(context, specs_id):
"""Disassociate qos_specs from all entities."""
try:
db.qos_specs_disassociate_all(context, specs_id)
except db_exc.DBError as e:
LOG.exception(_('DB error: %s') % e)
LOG.warn(_('Failed to disassociate qos specs %s.') % specs_id)
raise exception.QoSSpecsDisassociateFailed(specs_id=specs_id,
type_id=None)
def disassociate_all(context, specs_id):
"""Disassociate qos_specs from all entities."""
try:
get_qos_specs(context, specs_id)
db.qos_specs_disassociate_all(context, specs_id)
except db_exc.DBError:
LOG.exception(_LE("DB error:"))
LOG.warning(_LW("Failed to disassociate qos specs %s."), specs_id)
raise exception.QoSSpecsDisassociateFailed(specs_id=specs_id, type_id=None)
def disassociate_all(context, specs_id):
"""Disassociate qos_specs from all entities."""
try:
db.qos_specs_disassociate_all(context, specs_id)
except db_exc.DBError as e:
LOG.exception(_('DB error: %s') % e)
LOG.warn(_('Failed to disassociate qos specs %s.') % specs_id)
raise exception.QoSSpecsDisassociateFailed(specs_id=specs_id,
type_id=None)
def disassociate_all(context, specs_id):
"""Disassociate qos_specs from all entities."""
try:
get_qos_specs(context, specs_id)
db.qos_specs_disassociate_all(context, specs_id)
except db_exc.DBError:
LOG.exception('DB error:')
LOG.warning('Failed to disassociate qos specs %s.', specs_id)
raise exception.QoSSpecsDisassociateFailed(specs_id=specs_id,
type_id=None)
def destroy(self, force=False):
"""Deletes the QoS spec.
:param force: when force is True, all volume_type mappings for this QoS
are deleted. When force is False and volume_type
mappings still exist, a QoSSpecsInUse exception is thrown
"""
if self.volume_types:
if not force:
raise exception.QoSSpecsInUse(specs_id=self.id)
else:
# remove all association
db.qos_specs_disassociate_all(self._context, self.id)
db.qos_specs_delete(self._context, self.id)
def test_qos_specs_disassociate_all(self):
specs_id = self._create_qos_specs('FakeQos')
type1_id = volume_types.create(self.ctxt, 'Type1Name')['id']
type2_id = volume_types.create(self.ctxt, 'Type2Name')['id']
type3_id = volume_types.create(self.ctxt, 'Type3Name')['id']
db.volume_type_qos_associate(self.ctxt, type1_id, specs_id)
db.volume_type_qos_associate(self.ctxt, type2_id, specs_id)
db.volume_type_qos_associate(self.ctxt, type3_id, specs_id)
res = db.qos_specs_associations_get(self.ctxt, specs_id)
self.assertEqual(len(res), 3)
db.qos_specs_disassociate_all(self.ctxt, specs_id)
res = db.qos_specs_associations_get(self.ctxt, specs_id)
self.assertEqual(len(res), 0)
def test_qos_specs_disassociate_all(self):
specs_id = self._create_qos_specs('FakeQos')
type1_id = volume_types.create(self.ctxt, 'Type1Name')['id']
type2_id = volume_types.create(self.ctxt, 'Type2Name')['id']
type3_id = volume_types.create(self.ctxt, 'Type3Name')['id']
db.volume_type_qos_associate(self.ctxt, type1_id, specs_id)
db.volume_type_qos_associate(self.ctxt, type2_id, specs_id)
db.volume_type_qos_associate(self.ctxt, type3_id, specs_id)
res = db.qos_specs_associations_get(self.ctxt, specs_id)
self.assertEqual(3, len(res))
db.qos_specs_disassociate_all(self.ctxt, specs_id)
res = db.qos_specs_associations_get(self.ctxt, specs_id)
self.assertEqual(0, len(res))
def destroy(self, force=False):
"""Deletes the QoS spec.
:param force: when force is True, all volume_type mappings for this QoS
are deleted. When force is False and volume_type
mappings still exist, a QoSSpecsInUse exception is thrown
"""
if self.volume_types:
if not force:
raise exception.QoSSpecsInUse(specs_id=self.id)
# remove all association
db.qos_specs_disassociate_all(self._context, self.id)
updated_values = db.qos_specs_delete(self._context, self.id)
self.update(updated_values)
self.obj_reset_changes(updated_values.keys())
def test_qos_specs_disassociate_all(self):
specs_id = self._create_qos_specs("FakeQos")
type1_id = volume_types.create(self.ctxt, "Type1Name")["id"]
type2_id = volume_types.create(self.ctxt, "Type2Name")["id"]
type3_id = volume_types.create(self.ctxt, "Type3Name")["id"]
db.volume_type_qos_associate(self.ctxt, type1_id, specs_id)
db.volume_type_qos_associate(self.ctxt, type2_id, specs_id)
db.volume_type_qos_associate(self.ctxt, type3_id, specs_id)
res = db.qos_specs_associations_get(self.ctxt, specs_id)
self.assertEqual(len(res), 3)
db.qos_specs_disassociate_all(self.ctxt, specs_id)
res = db.qos_specs_associations_get(self.ctxt, specs_id)
self.assertEqual(len(res), 0)
def delete(context, qos_specs_id, force=False):
"""Marks qos specs as deleted.
'force' parameter is a flag to determine whether should destroy
should continue when there were entities associated with the qos specs.
force=True indicates caller would like to mark qos specs as deleted
even if there was entities associate with target qos specs.
Trying to delete a qos specs still associated with entities will
cause QoSSpecsInUse exception if force=False (default).
"""
if qos_specs_id is None:
msg = _("id cannot be None")
raise exception.InvalidQoSSpecs(reason=msg)
# check if there is any entity associated with this qos specs
res = db.qos_specs_associations_get(context, qos_specs_id)
if res and not force:
raise exception.QoSSpecsInUse(specs_id=qos_specs_id)
elif res and force:
# remove all association
db.qos_specs_disassociate_all(context, qos_specs_id)
db.qos_specs_delete(context, qos_specs_id)
def delete(context, qos_specs_id, force=False):
"""Marks qos specs as deleted.
'force' parameter is a flag to determine whether should destroy
should continue when there were entities associated with the qos specs.
force=True indicates caller would like to mark qos specs as deleted
even if there was entities associate with target qos specs.
Trying to delete a qos specs still associated with entities will
cause QoSSpecsInUse exception if force=False (default).
"""
if qos_specs_id is None:
msg = _("id cannot be None")
raise exception.InvalidQoSSpecs(reason=msg)
# check if there is any entity associated with this qos specs
res = db.qos_specs_associations_get(context, qos_specs_id)
if res and not force:
raise exception.QoSSpecsInUse(specs_id=qos_specs_id)
elif res and force:
# remove all association
db.qos_specs_disassociate_all(context, qos_specs_id)
db.qos_specs_delete(context, qos_specs_id)
