def load_tag_groups(dr: DataRiver, tag_group_dir: str):
tgr = JSonTagGroupRegistry()
for entry in os.scandir(tag_group_dir):
if entry.is_file() and entry.path.endswith('.json'):
log.info(f'Loading tag group: {entry.path}')
try:
tgr.register_tag_groups_from_uri(f'file://{entry.path}')
except Exception as e:
log.error(f'Unable to load tag group: {entry.path} : {e}')
pass
dr.add_tag_group_registry(tgr)
def create_thing(self):
# Create and Populate the TagGroup registry with JSON resource files.
tgr = JSonTagGroupRegistry()
tgr.register_tag_groups_from_uri(get_abs_file_uri('definitions/TagGroup/com.adlinktech.example/TemperatureTagGroup.json'))
self._dr.add_tag_group_registry(tgr)
# Create and Populate the ThingClass registry with JSON resource files.
tcr = JSonThingClassRegistry()
tcr.register_thing_classes_from_uri(get_abs_file_uri('definitions/ThingClass/com.adlinktech.example/TemperatureDisplayThingClass.json'))
self._dr.add_thing_class_registry(tcr)
# Create a Thing based on properties specified in a JSON resource file.
tp = JSonThingProperties()
tp.read_properties_from_uri(self._thing_properties_uri)
return self._dr.create_thing(tp)
def create_thing(self):
# Create and Populate the TagGroup registry with JSON resource files.
tgr = JSonTagGroupRegistry()
tgr.register_tag_groups_from_uri('file://definitions/TagGroup/com.adlinktech.example/RotationalSpeedTagGroup.json')
self._datariver.add_tag_group_registry(tgr)
# Create and Populate the ThingClass registry with JSON resource files.
tcr = JSonThingClassRegistry()
tcr.register_thing_classes_from_uri('file://definitions/ThingClass/com.adlinktech.example/RotationalSpeedSensorThingClass.json')
self._datariver.add_thing_class_registry(tcr)
# Create a Thing based on properties specified in a JSON resource file.
tp = JSonThingProperties()
tp.read_properties_from_uri(self._thing_properties_uri)
return self._datariver.create_thing(tp)
def register_tag_groups(dr: DataRiver, tag_group_dir: str,
tag_groups: List[str]):
'''
For each of the Tag Groups listed in tag_groups and whose definition is in tag_groups_dir register them with
the provided instance of the Data River; dr.
The tag_groups list should be the name of the file without the .json extension
'''
tgr = JSonTagGroupRegistry()
for tg in tag_groups:
logging.info(f'Loading Tag Group: {tg}.json from {tag_group_dir}')
tgr.register_tag_groups_from_uri(
get_abs_file_uri(str(os.path.join(tag_group_dir, f'{tg}.json'))))
dr.add_tag_group_registry(tgr)
