def __init__( self ):
self._logger = logging.getLogger( "WebBrickGateway.LocalData" )
self.sunRise = Sun()
self._timeFormat_12h = "%I:%M%p" # 12 hour clock
self._timeFormat_24h = "%H:%M" # 24 hour clock
#self._timeFormat = "%X" # locale clock, includes seconds
self._insertMessages( Message( "Started", "Started" ) )
def __init__ (self, localRouter ):
self._log = _log
super(TimeEventGenerator,self).__init__( localRouter )
self._thread = None
self.running = False
self.sunRise = Sun()
self._nextSunRise = (0,0)
self._nextSunSet = (0,0)
# london england
self._lat = 51.5086
self._long = -0.1264
self._doSeconds = False
self._runtimeStop = 900 # seconds, 15 minutes
self.startup_delay = 30 # wait before sending any time events
class LocalData:
"""
Local class to handle queries for local data to the gateway, e.g. time of day.
"""
def __init__( self ):
self._logger = logging.getLogger( "WebBrickGateway.LocalData" )
self.sunRise = Sun()
self._timeFormat_12h = "%I:%M%p" # 12 hour clock
self._timeFormat_24h = "%H:%M" # 24 hour clock
#self._timeFormat = "%X" # locale clock, includes seconds
self._insertMessages( Message( "Started", "Started" ) )
def _clearOldMessages(self):
"""
Check for obsolete messages in the _currentMessages
"""
cherrypy.response.headerMap["cache-control"] = "no-cache"
global _currentMesages
now = time.time()
idx = len(_currentMesages)
while idx > 0:
idx -= 1
msg = _currentMesages[idx]
if msg._expires and ( msg._expires < now ):
# remove from list
self._logger.debug( "_clearOldMessages(delete) %i %s %s" % (msg._pri, msg._txt, msg._expires ) )
del _currentMesages[idx]
def _insertMessages(self, msg):
"""
Adds message to _currentMesages based on priority. Lowest values come first.
"""
self._logger.debug( "_insertMessages %i:%s %s %s" % (msg._pri, msg._tag, msg._txt, msg._expires ) )
global _currentMesages
_currentMesages.append( msg )
_currentMesages.sort( _cmpMessage )
@turbogears.expose(template="WebBrickGateway.templates.singleValue", format="xml", content_type="text/xml")
def time(self, *args):
"""
Return time at Gateway as string value in form HH:MM
"""
cherrypy.response.headerMap["cache-control"] = "no-cache"
len_args = len(args)
if len_args >= 1:
# the below is left for backward compatibility
if args[0] == "sunrise":
riseSet = self.sunRise.sunRiseSetDST()
# convert values, they are
if (len_args == 2) and (args[1] == "24h"):
res = time.strftime( self._timeFormat_24h, time.gmtime(riseSet[0] * 3600)) # 24 hour clock
else:
res = time.strftime( self._timeFormat_12h, time.gmtime(riseSet[0] * 3600)) # 12 hour clock
elif args[0] == "sunset":
riseSet = self.sunRise.sunRiseSetDST()
if (len_args == 2) and (args[1] == "24h"):
res = time.strftime( self._timeFormat_24h, time.gmtime(riseSet[1] * 3600)) # 24 hour clock
else:
res = time.strftime( self._timeFormat_12h, time.gmtime(riseSet[1] * 3600)) # 12 hour clock
elif args[0] == "24h":
res = time.strftime( self._timeFormat_24h) # 24 hour clock
elif args[0] == "12h":
res = time.strftime( self._timeFormat_12h) # 12 hour clock
else:
res = time.strftime( self._timeFormat_12h) # 12 hour clock
return { 'stserr': None, 'stsval': res }
@turbogears.expose(template="WebBrickGateway.templates.singleValue", format="xml", content_type="text/xml")
def messages(self):
"""
return a string containing recent messages. With CR between messages.
"""
self._clearOldMessages()
global _currentMesages
nr = 0
s = ""
for msg in _currentMesages:
s = s + "\n"+ msg._txt
nr += 1
if nr > 5:
break # stop at 5 messages
return { 'stserr': None, 'stsval': s }
@turbogears.expose()
def removemessage(self, tag ):
"""
update the messages list
"""
self._clearOldMessages()
# if no tag then do not attempt delete
if tag:
global _currentMesages
idx = len(_currentMesages)
while idx > 0:
idx -= 1
msg = _currentMesages[idx]
if ( msg._tag == tag ):
# remove from list
self._logger.debug( "removemessage(delete) %i:%s %s" % (msg._pri, msg._tag, msg._txt ) )
del _currentMesages[idx]
return ""
@turbogears.expose()
def postmessage(self, msg, tag="", priority=4, validFor=300 ):
"""
update the messages list
"""
# tag may be blank and this will be suppressed in removemessage
self.removemessage(tag)
self._insertMessages( Message( msg, tag, priority, validFor ) )
return ""
class TimeEventGenerator(BaseHandler):
"""
Generate time based events.
"""
def __init__ (self, localRouter ):
self._log = _log
super(TimeEventGenerator,self).__init__( localRouter )
self._thread = None
self.running = False
self.sunRise = Sun()
self._nextSunRise = (0,0)
self._nextSunSet = (0,0)
# london england
self._lat = 51.5086
self._long = -0.1264
self._doSeconds = False
self._runtimeStop = 900 # seconds, 15 minutes
self.startup_delay = 30 # wait before sending any time events
def configure( self, cfgDict ):
"""
called with an XmlDom that contains the configuration for self
"""
# save latitude and longitude
if cfgDict.has_key("latitude"):
valStr = cfgDict["latitude"]
if ( valStr and (len(valStr) > 0 ) ):
self._lat = float( valStr )
if cfgDict.has_key("longitude"):
valStr = cfgDict["longitude"]
if ( valStr and (len(valStr) > 0 ) ):
self._long = float( valStr )
if cfgDict.has_key("interval"):
valStr = cfgDict["interval"]
if ( valStr ):
self._doSeconds = (valStr == 'seconds')
if cfgDict.has_key("runtime"):
valStr = cfgDict["runtime"]
if ( valStr and (len(valStr) > 0 ) ):
self._runtimeStop = int( valStr )
if cfgDict.has_key("startup_delay"):
valStr = cfgDict["startup_delay"]
if ( valStr and (len(valStr) > 0 ) ):
self.startup_delay = int( valStr )
# Terminate interface
def stop(self):
_log.debug( 'stop' )
self.running = False
def alive(self):
return self._thread and self._thread.isAlive()
def start(self):
_log.debug( 'start' )
self.running = True
self._thread = threading.Thread( target=self.run )
self._thread.setDaemon(True)
self._thread.start()
def _nextSunRiseSunSet(self):
# get todays values, returned as Daylight saving time values.
riseSet = self.sunRise.sunRiseSetDST( self._long, self._lat )
_log.debug( 'next Sun Rise/Sun Set %s' % (riseSet,) )
# convert values, they are
self._nextSunRise = time.gmtime(riseSet[0] * 3600)
self._nextSunSet = time.gmtime(riseSet[1] * 3600)
_log.debug( 'next Sun Rise %s' % (self._nextSunRise,) )
_log.debug( 'next Sun Set %s' % (self._nextSunSet,) )
def sendIsDark(self, nowSplit):
# between sunset and midnight
if ( nowSplit[3] > self._nextSunSet[3] ) or ( ( nowSplit[3] == self._nextSunSet[3] ) and ( nowSplit[4] >= self._nextSunSet[4] ) ):
self.sendEvent( Wb6TimeEventIsDark( 1 ) )
# between midnight and sunrise
elif ( nowSplit[3] < self._nextSunRise[3] ) or ( ( nowSplit[3] == self._nextSunRise[3] ) and ( nowSplit[4] <= self._nextSunRise[4] ) ):
self.sendEvent( Wb6TimeEventIsDark( 1 ) )
else:
# daytime
self.sendEvent( Wb6TimeEventIsDark( 0 ) )
def run(self):
# stay in loop reading packets while socket open.
_log.debug( 'enter run' )
# let system settle a bit before we cause lots of work.
if self.startup_delay > 0:
# sleep may get terminated by signals.
to = time.time() + self.startup_delay
while to > time.time():
time.sleep(1)
startTime = time.time()
lastSend = startTime
nowTime = startTime
elapsed = 0
self._nextSunRiseSunSet()
nowSplit = time.localtime( lastSend )
self.sendIsDark( nowSplit )
while ( self.running == True ):
try:
# wait for next second or minute
if self._doSeconds :
# rounded up to timer tick resolution to ensure not back until
# next second.
st = (1015000.0 - float(datetime.now().microsecond) ) / 1000000.0
else:
st = 60-time.localtime()[5]
if ( st > 10 ):
st = 10 # faster shutdown otherwise wait a long time.
# throws occasional error 514 as sleep using select. google Errno 514 python
# http://mail.python.org/pipermail/python-dev/2007-January/070626.html
time.sleep(st)
# generate events.
nowTime = time.time()
# we may of been shutdown in the meantime.
while self.running == True and lastSend < nowTime:
# this while is in case ione of the time event loops takes too long.
lastSend = lastSend + 1
nowSplit = time.localtime( lastSend )
if self._doSeconds :
self.sendEvent( Wb6TimeEvent('second',nowSplit) )
# There is an issue that this could miss seconds.
if ( nowSplit[5] == 0 ): # seconds in case we change the above wait..
self.sendEvent( Wb6TimeEvent('minute',nowSplit) )
if ( nowSplit[4] == 0 ): # new hour
self.sendEvent( Wb6TimeEvent('hour',nowSplit) )
if ( nowSplit[3] == 0 ): # new day
self._nextSunRiseSunSet() # get next pair.
self.sendEvent( Wb6TimeEvent('day',nowSplit) )
self.sendEvent( Wb6TimeEvent('date',nowSplit) )
if ( nowSplit[2] == 1 ): # new month
self.sendEvent( Wb6TimeEvent('month',nowSplit) )
if ( nowSplit[1] == 1 ): # new year
self.sendEvent( Wb6TimeEvent('year',nowSplit) )
# sunrise/sunset.
if ( nowSplit[3] == self._nextSunRise[3] ) and ( nowSplit[4] == self._nextSunRise[4] ):
self.sendEvent( Wb6TimeEvent('sunrise',nowSplit) )
self.sendEvent( Wb6TimeEventIsDark( 0 ) ) # not dark
if ( nowSplit[3] == self._nextSunSet[3] ) and ( nowSplit[4] == self._nextSunSet[4] ):
self.sendEvent( Wb6TimeEvent('sunset',nowSplit) )
self.sendEvent( Wb6TimeEventIsDark( 1 ) ) # is dark
# lightingupstart/lightingupend.
# daystart/dayend.
# This is unlikely to generate events if running using minute ticks.
elapsed = int(lastSend-startTime)
# generate events at 5 second intervals
if ( elapsed < self._runtimeStop ) and (( elapsed % 5 ) == 0):
self.sendEvent( Wb6TimeEventRunTime(elapsed) )
if ( elapsed < 120 ) and (( elapsed % 10 ) == 0):
# Every 10 seconds for 2 minutes.
# Need to send these for a while at startup otherwise sent before some sub systems have subscribed.
# TODO have this event generator subscribe to subscribe events so it can resend some of them
self.sendIsDark( nowSplit )
# decide on
#<li>http://id.webbrick.co.uk/events/time/lightingupstart</li>
#<li>http://id.webbrick.co.uk/events/time/lightingupend</li>
#<li>http://id.webbrick.co.uk/events/time/daystart</li>
#<li>http://id.webbrick.co.uk/events/time/dayend</li>
except Exception, ex:
_log.exception( ex )
_log.debug( 'exit run' )
