def check_weight_and_candidates(self):
ideal_mask = self.ideal_candidate.astype(np.bool)
ideal_sum = np.sum(self.weights[ideal_mask])
if not np.isclose(ideal_sum, 1):
error_print('Ideal sum is not 1, but %f' % ideal_sum)
self.loose()
anti_ideal_mask = self.anti_ideal_candidate.astype(np.bool)
anti_ideal_sum = np.sum(self.weights[anti_ideal_mask])
if not np.isclose(anti_ideal_sum, -1):
error_print('Anti-Ideal sum is not -1, but %f' % anti_ideal_sum)
self.loose()
def recv_weights(self):
info_print('Reading weights from M')
# 7 chars for each weight, commas and one \n mark
weight_string = self.data_sock.recv(7 * self.num_attr + self.num_attr)
info_print('Weights recieved are: %r' % weight_string)
if not weight_string.endswith('\n'):
error_print("Weights sent by M not truncated by '\\n'")
self.loose()
weight_string = weight_string[:-1]
if ',' not in weight_string:
error_print('Weights not delimited by comma')
self.loose()
weights = weight_string.split(',')
for weight in weights:
if len(weight) != 7:
error_print('Each weight should be exactly 7 characters')
error_print('Recevied a weight: %s' % weight)
self.loose()
try:
weights = map(float, weights)
except ValueError as e:
error_print(e.args[0])
self.loose()
if len(weights) != self.num_attr:
error_print('Expected %d weights but received %d' %
(self.num_attr, len(weights)))
self.loose()
weights = np.array(weights)
if not np.all((0 <= weights) & (weights <= 1)):
error_print('Weights have to be between 0 and 1')
self.loose()
weights = np.array(weights)
return np.array(weights)
def report_time(self):
warn_print('Matchmacker (M) has %f seconds left' %
(120 - self.time_taken))
if self.time_taken > 120:
error_print('Matchmaker (M) has exhausted his allotted time')
self.loose()
def loose(self):
error_print('M looses due to their mistake')
exit(0)
def recv_weights(self):
info_print('Reading weights from P')
# 5 chars for each weight, commas and one \n
weight_string = self.data_sock.recv(5 * self.num_attr + self.num_attr)
info_print('Weights recieved are: %r' % weight_string)
if not weight_string.endswith('\n'):
error_print("Weights sent by P not truncated by '\\n'")
self.loose()
weight_string = weight_string[:-1]
if ',' not in weight_string:
error_print('Weights not delimited by comma')
self.loose()
weights = weight_string.split(',')
for weight in weights:
if len(weight) != 5:
error_print('Each weight should be exactly 5 characters')
error_print('Recevied a weight: %s' % weight)
self.loose()
try:
weights = map(float, weights)
except ValueError as e:
error_print(e.args[0])
self.loose()
if len(weights) != self.num_attr:
error_print('Expected %d weights but received %d' %
(self.num_attr, len(weights)))
self.loose()
weights = np.array(weights)
positive_mask = weights > 0
positive_sum = np.sum(weights[positive_mask])
negative_sum = np.sum(weights[~positive_mask])
if not np.isclose(positive_sum, 1):
error_print('Sum of +ve weights should be 1, but is %f' %
positive_sum)
self.loose()
if not np.isclose(negative_sum, -1):
error_print('Sum of -ve weights should be -1, but is %f' %
negative_sum)
self.loose()
return np.array(weights)
def recv_candidate(self):
info_print('Reading candidate from P')
# 1 char per attribute, commas and \n
cand_string = self.data_sock.recv(2 * self.num_attr)
info_print('Candidate received is: %r' % cand_string)
if not cand_string.endswith('\n'):
error_print("Weights sent by P not truncated by '\\n'")
self.loose()
cand_string = cand_string[:-1]
if ',' not in cand_string:
error_print('Candidate attributes not delimited by comma')
self.loose()
candidate = cand_string.split(',')
for attribute in candidate:
if attribute not in ['0', '1']:
error_print('Each attribute should be either 0 or 1')
error_print('Recevied an attribute: %s' % attribute)
self.loose()
try:
candidate = map(int, candidate)
except ValueError as e:
error_print(e.args[0])
self.loose()
if len(candidate) != self.num_attr:
error_print('Expected %d attributes but received %d' %
(self.num_attr, len(candidate)))
self.loose()
return np.array(candidate)