def update(self):
try:
value = ts = None
result = SM.poll_all(self._sid)
if result is not None:
value = result[self._nid]['value']
ts = result[self._nid]['timestamp']
self._history_lock.acquire()
try:
if value is None or isinstance(value, MpxException):
# there were problems collecting during this period,
# our calculation should not proceed
self._history.clear()
if not self._poll_failure:
# log the failure, but don't spam the msglog
self._poll_failure = True
msglog.log('Kwh2Kw', msglog.types.WARN,
'Failed to retrieve data from %s' % self.link)
else:
self._poll_failure = False
self._history.add(value, ts)
finally:
self._history_lock.release()
except:
msglog.exception()
self._scheduled = scheduler.seconds_from_now_do(self.sample_period, self.run_update)
return
def _proxy_get_link(self, skip_cache=0):
try:
if self._proxy_start_exception: #if there was an exception during start, repeat it now
self._start_proxy_get() #try again until it starts ok
answer = None
if self.use_subscription:
if (self._proxy_sid is None):
self._proxy_sid = SM.create_polled(
{1:self._proxy_linked_node()}, timeout=None
)
answer = SM.poll_all(self._proxy_sid)[1]
if isinstance(answer, dict):
answer = answer['value']
if isinstance(answer, Exception):
raise answer
else:
answer = self._proxy_linked_node().get() # @fixme skip_cache) how to use gets that dont have skip cache
self._proxy_set_exception(None)
return answer
except Exception, e: #transfer any exception over to the proxy
if hasattr(self, 'error_response'):
if self.error_response != '%ERROR%': #default error response is to pass exception up
if self.error_response == '%NONE%': return None
return self.error_response #return specific desired value when an error occurs
self._proxy_set_exception(e)
raise # reraise the exception
def start(self):
super(Kwh2Kw, self).start()
self.running = True
self._history = KwList(self._window_size)
self._sid = SM.create_polled({self._nid: self.link})
# retrieve an initial value to start things off
value = ts = None
result = SM.poll_all(self._sid)
if result is None:
# still waiting
try:
value = as_node(self.link).get()
ts = time.time()
except:
pass
else:
try:
value = result[self._nid]['value']
ts = result[self._nid]['timestamp']
except:
pass
if isinstance(value, MpxException):
value = None
if value and ts:
self._history.add(value, ts)
self._scheduled = scheduler.seconds_from_now_do(
self.sample_period, self.run_update)
return
def start(self):
super(Kwh2Kw, self).start()
self.running = True
self._history = KwList(self._window_size)
self._sid = SM.create_polled({self._nid:self.link})
# retrieve an initial value to start things off
value = ts = None
result = SM.poll_all(self._sid)
if result is None:
# still waiting
try:
value = as_node(self.link).get()
ts = time.time()
except:
pass
else:
try:
value = result[self._nid]['value']
ts = result[self._nid]['timestamp']
except:
pass
if isinstance(value, MpxException):
value = None
if value and ts:
self._history.add(value, ts)
self._scheduled = scheduler.seconds_from_now_do(self.sample_period, self.run_update)
return
def update(self):
try:
value = ts = None
result = SM.poll_all(self._sid)
if result is not None:
value = result[self._nid]['value']
ts = result[self._nid]['timestamp']
self._history_lock.acquire()
try:
if value is None or isinstance(value, MpxException):
# there were problems collecting during this period,
# our calculation should not proceed
self._history.clear()
if not self._poll_failure:
# log the failure, but don't spam the msglog
self._poll_failure = True
msglog.log(
'Kwh2Kw', msglog.types.WARN,
'Failed to retrieve data from %s' % self.link)
else:
self._poll_failure = False
self._history.add(value, ts)
finally:
self._history_lock.release()
except:
msglog.exception()
self._scheduled = scheduler.seconds_from_now_do(
self.sample_period, self.run_update)
return
def _proxy_get_link(self, skip_cache=0):
try:
if self._proxy_start_exception: #if there was an exception during start, repeat it now
self._start_proxy_get() #try again until it starts ok
answer = None
if self.use_subscription:
if (self._proxy_sid is None):
self._proxy_sid = SM.create_polled(
{1: self._proxy_linked_node()}, timeout=None)
answer = SM.poll_all(self._proxy_sid)[1]
if isinstance(answer, dict):
answer = answer['value']
if isinstance(answer, Exception):
raise answer
else:
answer = self._proxy_linked_node().get(
) # @fixme skip_cache) how to use gets that dont have skip cache
self._proxy_set_exception(None)
return answer
except Exception, e: #transfer any exception over to the proxy
if hasattr(self, 'error_response'):
if self.error_response != '%ERROR%': #default error response is to pass exception up
if self.error_response == '%NONE%': return None
return self.error_response #return specific desired value when an error occurs
self._proxy_set_exception(e)
raise # reraise the exception
aipv=as_node('interfaces/eth0/BACnetIP/2/AnalogInput_01/present_value')
ain=as_node('interfaces/eth0/BACnetIP/2/AnalogInput_01/object_name')
sid = SM.create_polled({1:aipv, 2:ain})
from mpx.service.subscription_manager._manager import SUBSCRIPTION_MANAGER as SM
from mpx.lib.node import as_node
aipv=as_node('services/network/BACnet/internetwork1/Devices/1/8/1/77')
ain =as_node('services/network/BACnet/internetwork1/Devices/1/8/1/79')
pcm1=as_node('services/network/BACnet/internetwork1/Devices/1/151/1/85')
pcm2=as_node('services/network/BACnet/internetwork1/Devices/1/151/1/79')
up = as_node('services/network/BACnet/internetwork1/Devices/1/151/1/10209')
mdd= as_node('services/network/BACnet/internetwork1/Devices/1/151/1/10210')
sid = SM.create_polled({1:aipv, 2:ain, 3:pcm1, 4:pcm2, 5:up, 6:mdd})
sid = SM.create_polled({5:up,6:mdd})
SM.poll_all(sid)
SM.destroy(sid)
from mpx.service.subscription_manager._manager import SUBSCRIPTION_MANAGER as SM
from mpx.lib.node import as_node
pcm1 = as_node('services/network/BACnet/internetwork1/Devices/1/8/1')
ns1 = pcm1.children_names()
cp1 = {}
for n in ns1:
cp1[n] = pcm1.get_child(n)
sid1 = SM.create_polled(cp1)
SM.poll_changed(sid1)
pcm2 = as_node('services/network/BACnet/internetwork1/Devices/1/151/1')
def poll_all(self, sid):
return SM.poll_all(sid)
def poll_all(self, poll_id):
return SM.poll_all(poll_id)
def poll_all(self, sid):
return SM.poll_all(sid)
def poll_all(self, poll_id):
return SM.poll_all(poll_id)