Tags are not purged when tags are removed

[ganeshasri]

When we read a set of tags & get the tag counts & disconnect from reader, and take out few tags from the set & read it again, it gives the same number of found tags. The count is not reducing, do we have to do anything explicitly to restart the count afresh?

[ganeshasri]

When we run python code 2nd time it gives correct output.

[ganeshasri]

We ran below code in command prompt and it works fine: class ResetRFIDReader:

def __init__(self, configFile: configparser.ConfigParser()):
    self.configFile = configFile
    ''' Load the logger configuration '''
    logging.config.fileConfig(fname=self.configFile['File']['LoggerConfig'], disable_existing_loggers=False)
    self.logger = logging.getLogger(__name__)
    self.iConnector = None

    self.factory = llrp.LLRPClientFactory(reset_on_connect=False,
                                          start_inventory=False)
    self.factory.addStateCallback(llrp.LLRPClient.STATE_CONNECTED, self.shutdownReader)

def shutdownReader(self, proto):
    self.logger.info('shutdownReader RFID reader')
    return proto.stopPolitely(disconnect=True)

def stopReactor(self):

    if not self.iConnector:
        try:
            self.connectTCP()
        except Exception as error:
            self.logger.error(Constants.rfidOpenConnectError + ', with error:' + str(error))

    try:
        if reactor.running:
            reactor.stop()
    except Exception as error:
        self.logger.error(Constants.rfidCloseConnectError + ', with error:' + str(error))

def resetRFIDReader(self):

    factory = llrp.LLRPClientFactory(reset_on_connect=False,
                                     start_inventory=False)
    factory.addStateCallback(llrp.LLRPClient.STATE_CONNECTED, self.shutdownReader)

    try:

        self.iConnector = reactor.connectTCP(self.configFile["RFIDParamerer"]["Host"],
                                             self.configFile.getint("RFIDParamerer", "Port"),
                                             self.factory, self.configFile.getint("RFIDParamerer", "Timeout"))
    except Exception as error:
        self.logger.error(Constants.rfidReaderConnectError + "on RFID host:" +
                          self.configFile["RFIDParamerer"]["Host"] + ", on port:" +
                          str(self.configFile["RFIDParamerer"]["Port"]) + ", with error:" + str(error))
        raise RFIDError(Constants.rfidReaderConnectError + "on RFID host:" +
                        self.configFile["RFIDParamerer"]["Host"] + ", on port:" +
                        str(self.configFile["RFIDParamerer"]["Port"]) + ", with error:" + str(error))

    reactor.callLater(3, self.stopReactor)
    try:
        if reactor.running:
            reactor.stop()
        reactor.run(installSignalHandlers=False)
    except AlreadyCalledError as error:
        print('ResetRFIDReader AlreadyCalledError in reactor.run:', str(error))
    except Exception as error:
        print('ResetRFIDReader Exception in reactor.run:', str(error))

Please let us know if there are any alternate method to handle this.

[ganeshasri]

It worked fine by changing the session id. We used 0 to 4 session id in LLRPClientFactory constructor

[ransford]

Glad you got it to work.