def _load_failure_hook(manager, entrypoint, exception):
LOG.error("Driver manager %(manager)s failed to load device plugin "
"%(entrypoint)s: %(exp)s",
{'manager': manager, 'entrypoint': entrypoint, 'exp': exception})
raise gsw_exc.GenericSwitchEntrypointLoadError(
ep=entrypoint,
err=exception)
def device_manager(device_cfg):
device_type = device_cfg.get('device_type', '')
try:
mgr = stevedore.driver.DriverManager(
namespace=GENERIC_SWITCH_NAMESPACE,
name=device_type,
invoke_on_load=True,
invoke_args=(device_cfg, ),
on_load_failure_callback=_load_failure_hook)
except stevedore.exception.NoUniqueMatch as exc:
raise gsw_exc.GenericSwitchEntrypointLoadError(ep='.'.join(
(GENERIC_SWITCH_NAMESPACE, device_type)),
err=exc)
return mgr.driver
def _load_failure_hook(manager, entrypoint, exception):
LOG.error("Driver manager %s failed to load device plugin %s: %s" % (
manager, entrypoint, exception))
raise gsw_exc.GenericSwitchEntrypointLoadError(
ep=entrypoint,
err=exception)
