def get_adapter(adapter_id, user=None, session=None, **kwargs):
"""get adapter."""
load_adapters()
if adapter_id not in ADAPTER_MAPPING:
raise exception.RecordNotExists('adpater %s does not exist' %
adapter_id)
return ADAPTER_MAPPING[adapter_id]
def get_db_object(session, table, exception_when_missing=True, **kwargs):
"""Get db object.
If not exception_when_missing and the db object can not be found,
return None instead of raising exception.
"""
if not session:
raise exception.DatabaseException('session param is None')
with session.begin(subtransactions=True):
logging.debug(
'session %s get db object %s from table %s',
id(session), kwargs, table.__name__)
db_object = model_filter(
model_query(session, table), table, **kwargs
).first()
logging.debug(
'session %s got db object %s', id(session), db_object
)
if db_object:
return db_object
if not exception_when_missing:
return None
raise exception.RecordNotExists(
'Cannot find the record in table %s: %s' % (
table.__name__, kwargs
)
)
def _get_package_metadata(adapter_id):
"""get package metadata."""
load_metadatas()
if adapter_id not in PACKAGE_METADATA_MAPPING:
raise exception.RecordNotExists('adpater %s does not exist' %
adapter_id)
return _filter_metadata(PACKAGE_METADATA_MAPPING[adapter_id])
def _get_host_network(host_id, host_network_id, session=None, **kwargs):
"""Get hostnetwork by host id and hostnetwork id."""
host = _get_host(host_id, session=session)
host_network = _get_hostnetwork(host_network_id, session=session, **kwargs)
if host_network.host_id != host.id:
raise exception.RecordNotExists(
'host %s does not own host network %s' %
(host.id, host_network.id))
return host_network
def _get_flavor_metadata(flavor_id):
"""get flavor metadata."""
load_metadatas()
if not flavor_id:
logging.info('There is no flavor id, skipping...')
elif flavor_id not in FLAVOR_METADATA_MAPPING:
raise exception.RecordNotExists('flavor %s does not exist' % flavor_id)
else:
return _filter_metadata(FLAVOR_METADATA_MAPPING[flavor_id])
def get_flavor(flavor_id, user=None, session=None, **kwargs):
"""Get flavor."""
load_flavors()
if flavor_id not in FLAVOR_MAPPING:
raise exception.RecordNotExists('flavor %s does not exist' % flavor_id)
return FLAVOR_MAPPING[flavor_id]
def _get_flavor_metadata_ui_converter(flavor_id):
"""get flavor metadata ui converter."""
load_metadatas()
if flavor_id not in FLAVOR_METADATA_UI_CONVERTERS:
raise exception.RecordNotExists('flavor %s does not exist' % flavor_id)
return FLAVOR_METADATA_UI_CONVERTERS[flavor_id]
def _get_os_metadata_ui_converter(os_id):
"""get os metadata ui converter."""
load_metadatas()
if os_id not in OS_METADATA_UI_CONVERTERS:
raise exception.RecordNotExists('os %s does not exist' % os_id)
return OS_METADATA_UI_CONVERTERS[os_id]
def _get_os_metadata(os_id):
"""get os metadata."""
load_metadatas()
if os_id not in OS_METADATA_MAPPING:
raise exception.RecordNotExists('os %s does not exist' % os_id)
return _filter_metadata(OS_METADATA_MAPPING[os_id])