def handle_put(seq,key, value):
"""Return a tuple containing True and the message
to send back to the client."""
if key not in POROCESSING:
POROCESSING.append(key)
ds = DataStore(key,value)
if ds.put(seq):
POROCESSING.remove(key)
return (True, 'Key [{}] set to [{}]'.format(key, value))
else:
ds.roll_back(seq)
POROCESSING.remove(key)
return (False, 'Could Not be added')
def handle_delete(seq,key):
"""Return a tuple containing True if the key could be deleted and
the message to send back to the client.
use datastore.get and then before doing doing datastore.delete
"""
ds = DataStore()
if ds.get(key):
POROCESSING.append(key)
if ds.delete(seq,key):
POROCESSING.remove(key)
return (True,'Done')
else:
ds.roll_back(seq)
POROCESSING.remove(key)
return (False,'ERROR: Key [{}] not found and could not be deleted'.format(key))
def handle_abort(seq):
ds = DataStore()
if ds.roll_back(seq):
return (True,'SEQ Aborted')
return (False,"Error")
