def save(self, obj, typename=None):
"""
Save the item to this session.
Parameters
----------
obj : object
Object to save to this session.
"""
if not Session._is_known_type(obj):
raise Exception("Trying to save an object of unknown type.")
name = obj.name
typename = obj._typename if not typename else typename
savedir = self.location
if _internal_utils.is_gl_artifact_class(obj.__class__):
key = Key.from_tuple(name, typename)
if not obj._session_registration_date:
obj._session_registration_date = _datetime.datetime.now()
filename = "%s.%s" % (self._get_filename_from_name(obj.name),
typename)
obj._modified_since_last_saved = False
# Persist the object.
with self._lock:
obj._save_to_file(_os.path.join(savedir, filename))
# Remove from unsaved objects (only if it exists)
self._delete_key_from_unsaved_objects(key, silent=True)
# Update the index file with the object metadata.
metadata = obj._get_metadata()
metadata.update({'filename': filename})
# Update the shelve.
index = _shelve.open(self._index_file)
index[str(key)] = metadata
index.close()
return
def _is_known_type(obj):
"""
Helper method that returns True when type is supported by Session.
"""
return _internal_utils.is_gl_artifact_class(obj.__class__)