def synch_topologies(self) -> None:
"""
Sync the topologies with the statemgrs.
"""
self.state_managers = statemanagerfactory.get_all_state_managers(self.config.statemgr_config)
try:
for state_manager in self.state_managers:
state_manager.start()
except Exception as e:
Log.critical(f"Found exception while initializing state managers: {e}", exc_info=True)
sys.exit(1)
def on_topologies_watch(state_manager, topologies) -> None:
"""watch topologies"""
Log.info("State watch triggered for topologies.")
Log.debug("Topologies: " + str(topologies))
cached_names = [t.name for t in self.get_stmgr_topologies(state_manager.name)]
Log.debug(f"Existing topologies: {cached_names}")
for name in cached_names:
if name not in topologies:
Log.info("Removing topology: %s in rootpath: %s",
name, state_manager.rootpath)
self.remove_topology(name, state_manager.name)
for name in topologies:
if name not in cached_names:
self.add_new_topology(state_manager, name)
for state_manager in self.state_managers:
# The callback function with the bound
# state_manager as first variable.
onTopologiesWatch = partial(on_topologies_watch, state_manager)
state_manager.get_topologies(onTopologiesWatch)
