def __init__(self, identifier, protocol, reactor=None):
assert IRFIDReaderProtocol.implementedBy(protocol.__class__)
self.events = EventDispatcher()
self.events.setEventParent(rfidEvents)
self.identifier = identifier
self.protocol = protocol
self.protocol.events.addObserver("tag-present", self.gotTag)
self.protocol.events.setEventParent(self.events)
self.protocol.start()
self.tags = {}
if reactor is None:
from twisted.internet import reactor
self.reactor = reactor
class RFIDReader (object):
identifier = None
protocol = None
reactor = None
timeout = 0.5
def __init__(self, identifier, protocol, reactor=None):
assert IRFIDReaderProtocol.implementedBy(protocol.__class__)
self.events = EventDispatcher()
self.events.setEventParent(rfidEvents)
self.identifier = identifier
self.protocol = protocol
self.protocol.events.addObserver("tag-present", self.gotTag)
self.protocol.events.setEventParent(self.events)
self.protocol.start()
self.tags = {}
if reactor is None:
from twisted.internet import reactor
self.reactor = reactor
def _tagTimeout(self, tpe, tag):
self.events.dispatch("tag-removed", {'tag': tag, 'type': tpe, 'reader': self.identifier})
del self.tags[tag]
def gotTag(self, tpe, tag):
if tag in self.tags:
return self.tags[tag].reset(self.timeout)
self.tags[tag] = self.reactor.callLater(self.timeout, self._tagTimeout, tpe, tag)
self.events.dispatch("tag-added", {'tag': tag, 'type': tpe, 'reader': self.identifier})
def __del__(self):
print "del"
