def start(self):
self.mainNotificationListenerThread = NotificationListener(
self, self.PORT)
self.mainNotificationListenerThread.daemon = True
self.mainNotificationListenerThread.start()
self.cacheListenerThread = CacheListener()
self.cacheListenerThread.daemon = True
self.cacheListenerThread.start()
def start (self):
self.mainNotificationListenerThread = NotificationListener(self, self.PORT)
self.mainNotificationListenerThread.daemon = True
self.mainNotificationListenerThread.start()
self.cacheListenerThread = CacheListener()
self.cacheListenerThread.daemon = True
self.cacheListenerThread.start()
class NotificationHandler:
def __init__ (self):
self.lock = threading.RLock()
self.PORT = ListenerPort
self.ignoreSeconds = 5
self.maxNotifcationsPerNode = 20
self.mainNotificationListenerThread = None
self.cacheListenerThread = None
self.robotLaunchers = []
self.client = MongoClient('mongodb://localhost:27017/')
self.nodes = self.client.nodesdb.nodes
self.notifications = self.client.notificationsdb.notifications
def getNCB(self, nodeId):
nodes = self.nodes.find({"nodeId": str(nodeId)})
if nodes.count() > 0:
ncbdict = nodes[0]
ncb = Node()
ncb.__dict__.update(ncbdict)
else:
ncb = Node(str(nodeId))
self.nodes.insert_one(ncb.__dict__)
return ncb
def dump(self):
report = ""
report += "Notifications:\n"
for notification in self.notifications.find():
report += str(notification)
report += "\n"
report += "Nodes:\n"
for node in self.nodes.find():
report += str(node)
report += "\n"
return report
def getNodeReport(self, nodeId):
report = "EMPTY"
return report
def postBatteryValueNotification (self, nodeId, commandClass, fullHex, value):
with self.lock:
nodeIdStr = str(nodeId)
notification = BatteryValueNotification(nodeId, commandClass, fullHex, value)
logger.info("Created " + str(notification))
ncb = self.getNCB(nodeId)
ncb.batteryValue = value
self.nodes.replace_one({"_id": ncb._id}, ncb.__dict__)
self.callRobots('battery', notification, None)
def postWakeupNotification (self, nodeId, commandClass, fullHex, value):
with self.lock:
nodeIdStr = str(nodeId)
notification = WakeupNotification(nodeId, commandClass, fullHex, value)
logger.info("Created " + str(notification))
ncb = self.getNCB(nodeId)
ncb.lastWakeupTime = notification.time
ncb.wakeupInterval = value
self.nodes.replace_one({"_id": ncb._id}, ncb.__dict__)
self.callRobots('wakeup', notification, None)
def postValueNotification (self, nodeId, commandClass, fullHex, value):
notification = ValueNotification(nodeId, commandClass, fullHex, value)
logger.info("Created " + str(notification))
self.postControlNotification(nodeId, notification)
def postValueChangeNotification (self, nodeId, commandClass, fullHex, value, previousValue):
notification = ValueChangeNotification(nodeId, commandClass, fullHex, value, previousValue)
logger.info("Created " + str(notification))
self.postControlNotification(nodeId, notification)
def postNodeEventNotification (self, nodeId, commandClass, fullHex, event):
notification = NodeEventNotification(nodeId, commandClass, fullHex, event)
logger.info("Created " + str(notification))
self.postControlNotification(nodeId, notification)
def postControlNotification (self, nodeId, notification):
with self.lock:
nodeIdStr = str(nodeId)
previous = self.getLatestNotificationFromNode (nodeIdStr)
logger.info("Got latest notification to be: " + str(previous))
if previous is not None:
diff = notification.time - previous.time
diffSeconds = diff.total_seconds()
logger.info("Last notification arrived " + str(diffSeconds) + " seconds ago")
if (diffSeconds <= self.ignoreSeconds):
if (notification.value == previous.value) :
logger.info("Ignoring notification: " + str(notification.nid) + " since previous notification with same value came " + str(diffSeconds) + " seconds ago.")
notification.ignore = True
if notification.value == 'False':
if previous.value == 'False':
# If a sensor is closed, and it is still closed, we
# do not really care about it.
# However, if a sensor is open, we care about it no
# matter what the previous state was.
logger.info("Ignoring notification: " + str(notification.nid) + " since previous notification was false and current notification is false")
notification.ignore = True
else:
logger.info("Making a dummy previous")
previous = ValueNotification(notification.nodeId, notification.commandClass, notification.fullHex, "False")
previous.time = datetime.datetime(1970, 1, 1)
#Insert dummy notification
self.notifications.insert_one(previous.__dict__)
print "inserting one: " + str(notification.__dict__)
self.notifications.insert_one(notification.__dict__)
ncb = self.getNCB(nodeId)
ncb.setValue(notification.value)
self.nodes.replace_one({"_id": ncb._id}, ncb.__dict__)
#self.callRobots('control', notification, previous)
def callRobots(self, type, notification, previous):
# The following code cannot be in the critical section, because it
# dump and getNodeReport (or any robot apis) can lock.
if notification.ignore is False:
r = RobotLauncher(type, notification, previous)
r.daemon = True
r.start()
self.robotLaunchers.append(r)
def getNotificationFromNodeByIndex (self, nodeId, index, queue = "control"):
indexInt = int(index)
nodeIdStr = str(nodeId)
logger.info("From node(" + nodeIdStr + ") getting notification at index[" + str(index) + "]")
notifications = self.notifications.find({"nodeId": str(nodeId), "queue": queue})
notificationdict = notifications.get(indexInt)
return fromDict(**notificationdict)
def getNotificationFromNodeById (self, nodeId, notificationId, queue = "control"):
nodeIdStr = str(nodeId)
logger.info("From node(" + nodeIdStr + ") getting notification with nid[" + str(notificationId) + "]")
notifications = self.notifications.find({"nodeId": str(nodeId), "queue": queue, "nid": notificationId})
notificationdict = notifications.get(0) #There should be exactly one
return fromDict(**notificationdict)
def getEarliestNotificationOfCurrentState (self, nodeId, queue = "control"):
nodeIdStr = str(nodeId)
logger.info("From node(" + nodeIdStr + ") getting earliest notification of current state")
topnotification = self.notifications.findOne({"nodeId": str(nodeId), "queue": queue}) # make sure this gets the first one.
notifications = self.notifications.find({"nodeId": str(nodeId), "queue": queue})
for n in notifications:
if n.value == topnotification.value:
topnotification = n
return fromDict(**topnotification)
def getLatestNotificationFromNode (self, nodeId, queue = "control"):
# Need to reverse sort on time
notifications = self.notifications.find({"nodeId": str(nodeId), "queue": queue})
for notification in notifications:
if (notification["ignore"] == False):
print str(notification)
return fromDict(**notification)
return None
def getAllNotificationsFromNode(self, nodeId, queue = "control"):
return list(self.notifications.find({"nodeId": str(nodeId), "queue": queue}))
def waitForRobotLaunchers (self):
logger.info("Waiting on any robot launchers")
[robotLauncher.join() for robotLauncher in self.robotLaunchers]
logger.info("All robotLaunchers dead!")
def start (self):
self.mainNotificationListenerThread = NotificationListener(self, self.PORT)
self.mainNotificationListenerThread.daemon = True
self.mainNotificationListenerThread.start()
self.cacheListenerThread = CacheListener()
self.cacheListenerThread.daemon = True
self.cacheListenerThread.start()
def stop(self):
logger.info("Stopping NotificationHandler")
self.waitForRobotLaunchers()
if self.mainNotificationListenerThread is not None:
self.mainNotificationListenerThread.stop()
self.mainNotificationListenerThread.waitForChildren()
self.mainNotificationListenerThread.join()
if self.cacheListenerThread is not None:
self.cacheListenerThread.stop()
self.cacheListenerThread.join()
logger.info("NotificationHandler dead.")
class NotificationHandler:
def __init__ (self):
self.lock = threading.RLock()
self.PORT = ListenerPort
self.ignoreSeconds = 5
self.maxNotifcationsPerNode = 20
self.shelf = shelve.open(nhShelfLocation)
self.mainNotificationListenerThread = None
self.cacheListenerThread = None
self.robotLaunchers = []
def dump(self):
report = ""
with self.lock:
for key in self.shelf.keys():
ncb = self.shelf.get(key, None)
if ncb is not None:
report += "Node ID: " + nodeId + ": " + getNodeName(nodeId) + "\n"
report += " Control Value: " + str(ncb.value) + "\n"
report += " State: " + str(ncb.state) + "\n"
report += " Battery Level: " + str(ncb.batteryValue) + "\n"
report += " Last Wakeup Time: " + str(ncb.lastWakeupTime) + "\n"
report += " Wakeup Interval: " + str(ncb.wakeupInterval) + "\n"
report += " Control Notifications:\n"
for notification in ncb.notifications:
report += " " + str(notification) + "\n"
report += " Battery Notifications:\n"
for notification in ncb.batteryNotifications:
report += " " + str(notification) + "\n"
report += " Wakeup Notifications:\n"
for notification in ncb.wakeupNotifications:
report += " " + str(notification) + "\n"
return report
def getNodeReport(self, nodeId):
report = ""
with self.lock:
ncb = self.shelf.get(nodeId, None)
if ncb is not None:
report += "Node ID: " + nodeId + ": " + getNodeName(nodeId) + "\n"
report += " Control Value: " + str(ncb.value) + "\n"
report += " Battery Level: " + str(ncb.batteryValue) + "\n"
report += " Last Wakeup Time: " + str(ncb.lastWakeupTime) + "\n"
report += " Wakeup Interval: " + str(ncb.wakeupInterval) + "\n"
report += " Control Notifications:\n"
for notification in ncb.notifications:
report += " " + str(notification) + "\n"
report += " Battery Notifications:\n"
for notification in ncb.batteryNotifications:
report += " " + str(notification) + "\n"
report += " Wakeup Notifications:\n"
for notification in ncb.wakeupNotifications:
report += " " + str(notification) + "\n"
return report
def postBatteryValueNotification (self, nodeId, commandClass, fullHex, value):
with self.lock:
nodeIdStr = str(nodeId)
notification = BatteryValueNotification(nodeId, commandClass, fullHex, value)
logger.info("Created " + str(notification))
ncb = self.shelf.get(nodeIdStr, NodeControlBlock(nodeIdStr))
l = ncb.batteryNotifications
# Truncate list to maxNotifcationsPerNode size
l.insert(0,notification)
if len(l)>self.maxNotifcationsPerNode:
ncb.batteryNotifications = l[:self.maxNotifcationsPerNode]
# Set overall battery value for this node and put it on the shelf
ncb.batteryValue = value
self.shelf[nodeIdStr] = ncb
self.shelf.sync()
self.callRobots('battery', notification, None)
def postWakeupNotification (self, nodeId, commandClass, fullHex, value):
with self.lock:
nodeIdStr = str(nodeId)
notification = WakeupNotification(nodeId, commandClass, fullHex, value)
logger.info("Created " + str(notification))
ncb = self.shelf.get(nodeIdStr, NodeControlBlock(nodeIdStr))
l = ncb.wakeupNotifications
# Truncate list to maxNotifcationsPerNode size
l.insert(0,notification)
if len(l)>self.maxNotifcationsPerNode:
ncb.wakeupNotifications = l[:self.maxNotifcationsPerNode]
# Set overall wakeup value for this node and put it on the shelf
ncb.lastWakeupTime = notification.time
ncb.wakeupInterval = value
self.shelf[nodeIdStr] = ncb
self.shelf.sync()
self.callRobots('wakeup', notification, None)
def postValueNotification (self, nodeId, commandClass, fullHex, value):
notification = ValueNotification(nodeId, commandClass, fullHex, value)
logger.info("Created " + str(notification))
self.postControlNotification(nodeId, notification)
def postValueChangeNotification (self, nodeId, commandClass, fullHex, value, previousValue):
notification = ValueChangeNotification(nodeId, commandClass, fullHex, value, previousValue)
logger.info("Created " + str(notification))
self.postControlNotification(nodeId, notification)
def postNodeEventNotification (self, nodeId, commandClass, fullHex, event):
notification = NodeEventNotification(nodeId, commandClass, fullHex, event)
logger.info("Created " + str(notification))
self.postControlNotification(nodeId, notification)
def postControlNotification (self, nodeId, notification):
with self.lock:
#Critical Section
nodeIdStr = str(nodeId)
previous = self.getLatestNotificationFromNode (nodeIdStr)
logger.info("Got latest notification to be: " + str(previous))
if previous is not None:
diff = notification.time - previous.time
diffSeconds = diff.total_seconds()
logger.info("Last notification arrived " + str(diffSeconds) + " seconds ago")
if (diffSeconds <= self.ignoreSeconds):
if (notification.value == previous.value) :
logger.info("Ignoring notification: " + str(notification.nid) + " since previous notification with same value came " + str(diffSeconds) + " seconds ago.")
notification.ignore = True
if notification.value == 'False':
if previous.value == 'False':
# If a sensor is closed, and it is still closed, we
# do not really care about it.
# However, if a sensor is open, we care about it no
# matter what the previous state was.
logger.info("Ignoring notification: " + str(notification.nid) + " since previous notification was false and current notification is false")
notification.ignore = True
else:
logger.info("Making a dummy previous")
previous = ValueNotification(notification.nodeId, notification.commandClass, notification.fullHex, "False")
previous.time = datetime.datetime(1970, 1, 1)
ncb = self.shelf.get(nodeIdStr, NodeControlBlock(nodeIdStr))
l = ncb.notifications
l.insert(0,previous)
self.shelf[nodeIdStr] = ncb
ncb = self.shelf.get(nodeIdStr, NodeControlBlock(nodeIdStr))
l = ncb.notifications
# Truncate list to maxNotifcationsPerNode size
l.insert(0,notification)
if len(l)>self.maxNotifcationsPerNode:
ncb.notifications = l[:self.maxNotifcationsPerNode]
# Set overall control value for this node and put it on the shelf
ncb.setValue(notification.value)
self.shelf[nodeIdStr] = ncb
self.shelf.sync()
#End critical section
self.callRobots('control', notification, previous)
def callRobots(self, type, notification, previous):
# The following code cannot be in the critical section, because it
# dump and getNodeReport (or any robot apis) can lock.
if notification.ignore is False:
r = RobotLauncher(type, notification, previous)
r.daemon = True
r.start()
self.robotLaunchers.append(r)
def getNotificationFromNodeByIndex (self, nodeId, index, queue = "control"):
indexInt = int(index)
nodeIdStr = str(nodeId)
logger.info("From node(" + nodeIdStr + ") getting notification at index[" + str(index) + "]")
ncb = self.shelf.get(nodeIdStr, None)
if not ncb:
logger.info("no ncb")
return None
else:
l = None
if queue == 'battery':
l = ncb.batteryNotifications
elif queue == 'wakeup':
l = ncb.wakeupNotifications
else:
l = ncb.notifications
if indexInt >= len(l):
logger.info( "length is short: " + str(len(l)))
return None
return l[indexInt]
def getNotificationFromNodeById (self, nodeId, notificationId, queue = "control"):
nodeIdStr = str(nodeId)
logger.info("From node(" + nodeIdStr + ") getting notification with nid[" + str(notificationId) + "]")
ncb = self.shelf.get(nodeIdStr, None)
if not ncb:
logger.info("no ncb")
return None
else:
l = None
if queue == 'battery':
l = ncb.batteryNotifications
elif queue == 'wakeup':
l = ncb.wakeupNotifications
else:
l = ncb.notifications
for notification in l:
if notificationId == notification.nid:
logger.info("Found notification: " + str(notification))
return notification
return None
def getEarliestNotificationOfCurrentState (self, nodeId, queue = "control"):
notification = self.getNotificationFromNodeByIndex(nodeId, 0, queue)
if notification is not None:
for i in range(1, self.maxNotifcationsPerNode):
n = self.getNotificationFromNodeByIndex(nodeId, i, queue)
if n and n.value == notification.value:
notification = n
else:
break
return notification
def getLatestNotificationFromNode (self, nodeId, queue = "control"):
notification = self.getNotificationFromNodeByIndex(nodeId, 0, queue)
i = 1
while (notification is not None) and (notification.ignore is True) and (i < self.maxNotifcationsPerNode):
notification = self.getNotificationFromNodeByIndex(nodeId, i, queue)
i += 1
return notification
def getAllNotificationsFromNode(self, nodeId, queue = "control"):
nodeIdStr = str(nodeId)
ncb = self.shelf.get(nodeIdStr, None)
if ncb is None:
return []
else:
if queue == 'battery':
return ncb.batteryNotifications
elif queue == 'wakeup':
return ncb.wakeupNotifications
else:
return ncb.notifications
def waitForRobotLaunchers (self):
logger.info("Waiting on any robot launchers")
[robotLauncher.join() for robotLauncher in self.robotLaunchers]
logger.info("All robotLaunchers dead!")
def start (self):
self.mainNotificationListenerThread = NotificationListener(self, self.PORT)
self.mainNotificationListenerThread.daemon = True
self.mainNotificationListenerThread.start()
self.cacheListenerThread = CacheListener()
self.cacheListenerThread.daemon = True
self.cacheListenerThread.start()
def stop(self):
logger.info("Stopping NotificationHandler")
self.shelf.close()
self.waitForRobotLaunchers()
if self.mainNotificationListenerThread is not None:
self.mainNotificationListenerThread.stop()
self.mainNotificationListenerThread.waitForChildren()
self.mainNotificationListenerThread.join()
if self.cacheListenerThread is not None:
self.cacheListenerThread.stop()
self.cacheListenerThread.join()
logger.info("NotificationHandler dead.")
class NotificationHandler:
def __init__(self):
self.lock = threading.RLock()
self.PORT = ListenerPort
self.ignoreSeconds = 5
self.maxNotifcationsPerNode = 20
self.shelf = shelve.open(nhShelfLocation)
self.mainNotificationListenerThread = None
self.cacheListenerThread = None
self.robotLaunchers = []
def dump(self):
report = ""
with self.lock:
for key in self.shelf.keys():
ncb = self.shelf.get(key, None)
if ncb is not None:
report += "Node ID: " + nodeId + ": " + getNodeName(
nodeId) + "\n"
report += " Control Value: " + str(ncb.value) + "\n"
report += " State: " + str(ncb.state) + "\n"
report += " Battery Level: " + str(
ncb.batteryValue) + "\n"
report += " Last Wakeup Time: " + str(
ncb.lastWakeupTime) + "\n"
report += " Wakeup Interval: " + str(
ncb.wakeupInterval) + "\n"
report += " Control Notifications:\n"
for notification in ncb.notifications:
report += " " + str(notification) + "\n"
report += " Battery Notifications:\n"
for notification in ncb.batteryNotifications:
report += " " + str(notification) + "\n"
report += " Wakeup Notifications:\n"
for notification in ncb.wakeupNotifications:
report += " " + str(notification) + "\n"
return report
def getNodeReport(self, nodeId):
report = ""
with self.lock:
ncb = self.shelf.get(nodeId, None)
if ncb is not None:
report += "Node ID: " + nodeId + ": " + getNodeName(
nodeId) + "\n"
report += " Control Value: " + str(ncb.value) + "\n"
report += " Battery Level: " + str(ncb.batteryValue) + "\n"
report += " Last Wakeup Time: " + str(
ncb.lastWakeupTime) + "\n"
report += " Wakeup Interval: " + str(
ncb.wakeupInterval) + "\n"
report += " Control Notifications:\n"
for notification in ncb.notifications:
report += " " + str(notification) + "\n"
report += " Battery Notifications:\n"
for notification in ncb.batteryNotifications:
report += " " + str(notification) + "\n"
report += " Wakeup Notifications:\n"
for notification in ncb.wakeupNotifications:
report += " " + str(notification) + "\n"
return report
def postBatteryValueNotification(self, nodeId, commandClass, fullHex,
value):
with self.lock:
nodeIdStr = str(nodeId)
notification = BatteryValueNotification(nodeId, commandClass,
fullHex, value)
logger.info("Created " + str(notification))
ncb = self.shelf.get(nodeIdStr, NodeControlBlock(nodeIdStr))
l = ncb.batteryNotifications
# Truncate list to maxNotifcationsPerNode size
l.insert(0, notification)
if len(l) > self.maxNotifcationsPerNode:
ncb.batteryNotifications = l[:self.maxNotifcationsPerNode]
# Set overall battery value for this node and put it on the shelf
ncb.batteryValue = value
self.shelf[nodeIdStr] = ncb
self.shelf.sync()
self.callRobots('battery', notification, None)
def postWakeupNotification(self, nodeId, commandClass, fullHex, value):
with self.lock:
nodeIdStr = str(nodeId)
notification = WakeupNotification(nodeId, commandClass, fullHex,
value)
logger.info("Created " + str(notification))
ncb = self.shelf.get(nodeIdStr, NodeControlBlock(nodeIdStr))
l = ncb.wakeupNotifications
# Truncate list to maxNotifcationsPerNode size
l.insert(0, notification)
if len(l) > self.maxNotifcationsPerNode:
ncb.wakeupNotifications = l[:self.maxNotifcationsPerNode]
# Set overall wakeup value for this node and put it on the shelf
ncb.lastWakeupTime = notification.time
ncb.wakeupInterval = value
self.shelf[nodeIdStr] = ncb
self.shelf.sync()
self.callRobots('wakeup', notification, None)
def postValueNotification(self, nodeId, commandClass, fullHex, value):
notification = ValueNotification(nodeId, commandClass, fullHex, value)
logger.info("Created " + str(notification))
self.postControlNotification(nodeId, notification)
def postValueChangeNotification(self, nodeId, commandClass, fullHex, value,
previousValue):
notification = ValueChangeNotification(nodeId, commandClass, fullHex,
value, previousValue)
logger.info("Created " + str(notification))
self.postControlNotification(nodeId, notification)
def postNodeEventNotification(self, nodeId, commandClass, fullHex, event):
notification = NodeEventNotification(nodeId, commandClass, fullHex,
event)
logger.info("Created " + str(notification))
self.postControlNotification(nodeId, notification)
def postControlNotification(self, nodeId, notification):
with self.lock:
#Critical Section
nodeIdStr = str(nodeId)
previous = self.getLatestNotificationFromNode(nodeIdStr)
logger.info("Got latest notification to be: " + str(previous))
if previous is not None:
diff = notification.time - previous.time
diffSeconds = diff.total_seconds()
logger.info("Last notification arrived " + str(diffSeconds) +
" seconds ago")
if (diffSeconds <= self.ignoreSeconds):
if (notification.value == previous.value):
logger.info(
"Ignoring notification: " + str(notification.nid) +
" since previous notification with same value came "
+ str(diffSeconds) + " seconds ago.")
notification.ignore = True
if notification.value == 'False':
if previous.value == 'False':
# If a sensor is closed, and it is still closed, we
# do not really care about it.
# However, if a sensor is open, we care about it no
# matter what the previous state was.
logger.info(
"Ignoring notification: " + str(notification.nid) +
" since previous notification was false and current notification is false"
)
notification.ignore = True
else:
logger.info("Making a dummy previous")
previous = ValueNotification(notification.nodeId,
notification.commandClass,
notification.fullHex, "False")
previous.time = datetime.datetime(1970, 1, 1)
ncb = self.shelf.get(nodeIdStr, NodeControlBlock(nodeIdStr))
l = ncb.notifications
l.insert(0, previous)
self.shelf[nodeIdStr] = ncb
ncb = self.shelf.get(nodeIdStr, NodeControlBlock(nodeIdStr))
l = ncb.notifications
# Truncate list to maxNotifcationsPerNode size
l.insert(0, notification)
if len(l) > self.maxNotifcationsPerNode:
ncb.notifications = l[:self.maxNotifcationsPerNode]
# Set overall control value for this node and put it on the shelf
ncb.setValue(notification.value)
self.shelf[nodeIdStr] = ncb
self.shelf.sync()
#End critical section
self.callRobots('control', notification, previous)
def callRobots(self, type, notification, previous):
# The following code cannot be in the critical section, because it
# dump and getNodeReport (or any robot apis) can lock.
if notification.ignore is False:
r = RobotLauncher(type, notification, previous)
r.daemon = True
r.start()
self.robotLaunchers.append(r)
def getNotificationFromNodeByIndex(self, nodeId, index, queue="control"):
indexInt = int(index)
nodeIdStr = str(nodeId)
logger.info("From node(" + nodeIdStr +
") getting notification at index[" + str(index) + "]")
ncb = self.shelf.get(nodeIdStr, None)
if not ncb:
logger.info("no ncb")
return None
else:
l = None
if queue == 'battery':
l = ncb.batteryNotifications
elif queue == 'wakeup':
l = ncb.wakeupNotifications
else:
l = ncb.notifications
if indexInt >= len(l):
logger.info("length is short: " + str(len(l)))
return None
return l[indexInt]
def getNotificationFromNodeById(self,
nodeId,
notificationId,
queue="control"):
nodeIdStr = str(nodeId)
logger.info("From node(" + nodeIdStr +
") getting notification with nid[" + str(notificationId) +
"]")
ncb = self.shelf.get(nodeIdStr, None)
if not ncb:
logger.info("no ncb")
return None
else:
l = None
if queue == 'battery':
l = ncb.batteryNotifications
elif queue == 'wakeup':
l = ncb.wakeupNotifications
else:
l = ncb.notifications
for notification in l:
if notificationId == notification.nid:
logger.info("Found notification: " + str(notification))
return notification
return None
def getEarliestNotificationOfCurrentState(self, nodeId, queue="control"):
notification = self.getNotificationFromNodeByIndex(nodeId, 0, queue)
if notification is not None:
for i in range(1, self.maxNotifcationsPerNode):
n = self.getNotificationFromNodeByIndex(nodeId, i, queue)
if n and n.value == notification.value:
notification = n
else:
break
return notification
def getLatestNotificationFromNode(self, nodeId, queue="control"):
notification = self.getNotificationFromNodeByIndex(nodeId, 0, queue)
i = 1
while (notification
is not None) and (notification.ignore is
True) and (i < self.maxNotifcationsPerNode):
notification = self.getNotificationFromNodeByIndex(
nodeId, i, queue)
i += 1
return notification
def getAllNotificationsFromNode(self, nodeId, queue="control"):
nodeIdStr = str(nodeId)
ncb = self.shelf.get(nodeIdStr, None)
if ncb is None:
return []
else:
if queue == 'battery':
return ncb.batteryNotifications
elif queue == 'wakeup':
return ncb.wakeupNotifications
else:
return ncb.notifications
def waitForRobotLaunchers(self):
logger.info("Waiting on any robot launchers")
[robotLauncher.join() for robotLauncher in self.robotLaunchers]
logger.info("All robotLaunchers dead!")
def start(self):
self.mainNotificationListenerThread = NotificationListener(
self, self.PORT)
self.mainNotificationListenerThread.daemon = True
self.mainNotificationListenerThread.start()
self.cacheListenerThread = CacheListener()
self.cacheListenerThread.daemon = True
self.cacheListenerThread.start()
def stop(self):
logger.info("Stopping NotificationHandler")
self.shelf.close()
self.waitForRobotLaunchers()
if self.mainNotificationListenerThread is not None:
self.mainNotificationListenerThread.stop()
self.mainNotificationListenerThread.waitForChildren()
self.mainNotificationListenerThread.join()
if self.cacheListenerThread is not None:
self.cacheListenerThread.stop()
self.cacheListenerThread.join()
logger.info("NotificationHandler dead.")
