def get_pplan(self, topologyName, callback=None):
if callback:
self.pplan_watchers[topologyName].append(callback)
else:
pplan_path = self.get_pplan_path(topologyName)
with open(pplan_path) as f:
data = f.read()
pplan = PhysicalPlan()
pplan.ParseFromString(data)
return pplan
def watch_pplan(data, stats):
if data:
pplan = PhysicalPlan()
pplan.ParseFromString(data)
callback(pplan)
else:
callback(None)
# Returning False will result in no future watches
# being triggered. If isWatching is True, then
# the future watches will be triggered.
return isWatching
