def _Discover(self):
"""Use multicast to discover stations on the local network."""
responses = multicast.send(PING_STRING, FLAGS.discovery_address, FLAGS.discovery_port, FLAGS.discovery_ttl)
for host, response in responses:
try:
port = json.loads(response)[PING_RESPONSE_KEY]
self._Track(host, port)
except (KeyError, ValueError):
_LOG.warning("Ignoring unrecognized discovery response from %s: %s" % (host, response))
def discover(cls, timeout_s=3):
"""Discover Stations, yielding them as they're found."""
for host, response in multicast.send(conf.station_discovery_string, timeout_s=timeout_s, **MULTICAST_KWARGS()):
try:
response = json.loads(response)
port = response.pop("station_api_port")
yield cls(host, port, StationInfo(**response))
except ValueError:
_LOG.debug("Received malformed JSON from %s: %s", host, response)
except TypeError:
_LOG.debug("Received invalid discovery response from %s: %s", host, response, exc_info=True)
def discover(cls, timeout_s=3):
"""Discover Stations, yielding them as they're found."""
for host, response in multicast.send(conf.station_discovery_string,
timeout_s=timeout_s,
**MULTICAST_KWARGS()):
try:
response = json.loads(response)
port = response.pop('station_api_port')
yield cls(host, port, StationInfo(**response))
except ValueError:
_LOG.debug('Received malformed JSON from %s: %s', host, response)
except TypeError:
_LOG.debug('Received invalid discovery response from %s: %s',
host, response, exc_info=True)
def _discover(**kwargs):
"""Yields info about station servers announcing themselves via multicast."""
query = station_server.MULTICAST_QUERY
for host, response in multicast.send(query, **kwargs):
try:
result = json.loads(response)
except ValueError:
_LOG.warn('Received bad JSON over multicast from %s: %s', host, response)
try:
yield StationInfo(result['cell'], host, result['port'],
result['station_id'], 'ONLINE',
result.get('test_description'),
result['test_name'])
except KeyError:
if 'last_activity_time_millis' in result:
_LOG.debug('Received old station API response on multicast. Ignoring.')
else:
_LOG.warn('Received bad multicast response from %s: %s', host, response)
def _discover(**kwargs):
"""Yields info about station servers announcing themselves via multicast."""
query = station_server.MULTICAST_QUERY
for host, response in multicast.send(query, **kwargs):
try:
result = json.loads(response)
except ValueError:
_LOG.warn('Received bad JSON over multicast from %s: %s', host, response)
try:
yield StationInfo(result['cell'], host, result['port'],
result['station_id'], 'ONLINE',
result.get('test_description'),
result['test_name'])
except KeyError:
if 'last_activity_time_millis' in result:
_LOG.debug('Received old station API response on multicast. Ignoring.')
else:
_LOG.warn('Received bad multicast response from %s: %s', host, response)
