def _get_event_args(charm, bound_event):
event_type = bound_event.event_type
model = charm.framework.model
if issubclass(event_type, ops.charm.RelationEvent):
relation_name = os.environ['JUJU_RELATION']
relation_id = int(os.environ['JUJU_RELATION_ID'].split(':')[-1])
relation = model.get_relation(relation_name, relation_id)
else:
relation = None
remote_app_name = os.environ.get('JUJU_REMOTE_APP', '')
remote_unit_name = os.environ.get('JUJU_REMOTE_UNIT', '')
if remote_app_name or remote_unit_name:
if not remote_app_name:
if '/' not in remote_unit_name:
raise RuntimeError(
'invalid remote unit name: {}'.format(remote_unit_name))
remote_app_name = remote_unit_name.split('/')[0]
args = [relation, model.get_app(remote_app_name)]
if remote_unit_name:
args.append(model.get_unit(remote_unit_name))
return args, {}
elif relation:
return [relation], {}
return [], {}
def _get_event_args(charm, bound_event):
event_type = bound_event.event_type
model = charm.framework.model
relation = None
if issubclass(event_type, ops.charm.WorkloadEvent):
workload_name = os.environ['JUJU_WORKLOAD_NAME']
container = model.unit.get_container(workload_name)
return [container], {}
elif issubclass(event_type, ops.charm.StorageEvent):
storage_id = os.environ.get("JUJU_STORAGE_ID", "")
if storage_id:
storage_name = storage_id.split("/")[0]
else:
# Before JUJU_STORAGE_ID exists, take the event name as
# <storage_name>_storage_<attached|detached> and replace it with <storage_name>
storage_name = "-".join(bound_event.event_kind.split("_")[:-2])
storages = model.storages[storage_name]
id, storage_location = model._backend._storage_event_details()
if len(storages) == 1:
storage = storages[0]
else:
# If there's more than one value, pick the right one. We'll realize the key on lookup
storage = next((s for s in storages if s.id == id), None)
storage.location = storage_location
return [storage], {}
elif issubclass(event_type, ops.charm.RelationEvent):
relation_name = os.environ['JUJU_RELATION']
relation_id = int(os.environ['JUJU_RELATION_ID'].split(':')[-1])
relation = model.get_relation(relation_name, relation_id)
remote_app_name = os.environ.get('JUJU_REMOTE_APP', '')
remote_unit_name = os.environ.get('JUJU_REMOTE_UNIT', '')
departing_unit_name = os.environ.get('JUJU_DEPARTING_UNIT', '')
if not remote_app_name and remote_unit_name:
if '/' not in remote_unit_name:
raise RuntimeError(
'invalid remote unit name: {}'.format(remote_unit_name))
remote_app_name = remote_unit_name.split('/')[0]
kwargs = {}
if remote_app_name:
kwargs['app'] = model.get_app(remote_app_name)
if remote_unit_name:
kwargs['unit'] = model.get_unit(remote_unit_name)
if departing_unit_name:
kwargs['departing_unit_name'] = departing_unit_name
if relation:
return [relation], kwargs
return [], {}