Samuele E. Locatelli
635 lines
19 KiB
Python
635 lines
19 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# readSeriale v. 2.3
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# - single instance timer
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# - invio multiplo x send eventi accodati
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#---------------------------------------------------------------
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# levare locking
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# timer semplificata
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import serial
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import time
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import sys
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from datetime import datetime
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import urllib
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import ConfigParser
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import os, sys
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import logging
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import logging.handlers
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import threading
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import Queue
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from array import *
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#--------------------------------------------------------------
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# COSTANTI
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MSGLEN = 9
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TIMEOUTSERIALE = 10
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MAXRETRY = 3
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# numero campioni filtraggio segnale ballerino
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MAX_COUNTER_BLINK = 10
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PROGRAM_NAME ="ReadSer IOB-w v.2.3"
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# DA FILE CONF
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idxMacchina = "1001"
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SAMPLETIME = 0.1
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TIMEOUTSHORT = (SAMPLETIME*20)
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TIMEOUTLONG = (SAMPLETIME*600)
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SENDURLTIME = 0.08
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NMAXSEND = 5 # numero massimo di invii per singolo ciclo di svuotamento
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# VAR
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to_enable = False
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to_short = TIMEOUTSHORT
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to_long = TIMEOUTLONG
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to_serial = TIMEOUTSERIALE
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to_retry = MAXRETRY
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errormsglen = 0
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# contatore: serve x match tra accoda ed invia x possibile controllo a posteriori... ogni volta che accodo incremento di 1, va da 0 a 9999
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cont = '0'
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# variabile stato online/offline della macchina
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onLine = '1'
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# variabile stato seinding/waiting x la parte invio URL
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sending = '0'
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# variabile stato timer thread busy
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timer_busy = False
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#
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# array per ingressi filtrati
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i_counters = array ( 'i',[0,0,0,0,0,0,0,0])
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B_blinking = array ( 'B',[0,0,0,0,0,0,0,0])
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B_previous = array ( 'B',[0,0,0,0,0,0,0,0])
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B_input = array ( 'B',[0,0,0,0,0,0,0,0])
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B_output = array ( 'B',[0,0,0,0,0,0,0,0])
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B_inverting = array ( 'B',[0,0,0,0,0,0,0,0])
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B_filter = array ( 'B',[0,0,0,0,0,0,0,0])
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B_filter_prev = array ( 'B',[0,0,0,0,0,0,0,0])
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B_temp = array ( 'B',[0,0,0,0,0,0,0,0])
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i_filter_counters = array ( 'i',[0,0,0,0,0,0,0,0])
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#--------------------------------------------------------------
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# Gestione coda (condivisa) x registrazione eventi ed invio URL
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#print "Creazione coda illimitata"
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Coda = Queue.Queue(0)
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#queueLock = threading.Lock()
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#---------------------------------------------------------------
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#---------------------------------------------------------------
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# lettura buffer seriale e pulizia caratteri non stampabili
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# ritorna '' se non c'è un messaggio buono o il messaggio pulito ( due bytes hex )
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# il messaggio ha il formato xx<ACK>i00 00<CR><LF>xxx
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def readSeriale():
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global to_serial
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global to_retry
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global errormsglen
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ret = ''
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current = ''
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i = 0
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# ritorna '' se non ci sono abbastanza caratteri
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try:
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if ser.inWaiting() < MSGLEN :
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logPro.error("SERIALE: errore msglen < 9 char - Errore no. " + str(errormsglen))
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errormsglen = errormsglen +1
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RiavviaSeriale()
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time.sleep(.2)
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if errormsglen > 30:
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if ser.isOpen():
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ser.close()
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sys.exit(1)
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except:
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if startstatus == 0:
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logPro.error ("Porta SERIALE non disponibile - ser.inWaiting error - exit... - Errore no. " + str(errormsglen))
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errormsglen = errormsglen +1
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RiavviaSeriale()
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time.sleep(.2)
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if errormsglen > 30:
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if ser.isOpen():
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ser.close()
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sys.exit(1)
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# finchè c'è robba .. leggi e tieni i buoni
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to_serial = TIMEOUTSERIALE
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to_retry = MAXRETRY
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try:
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while ser.inWaiting() > 0 :
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try:
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c = ser.read(1)
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except:
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logPro.error("SERIALE: errore su try ser.read")
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if ser.isOpen():
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ser.close()
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sys.exit(1)
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# filtra caratteri non stampabili
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if c > ' ' :
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current += c
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#sys.stdout.write(current + '<<<<\n')
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# ora il messaggio ha il formato xxxxxi00 00xxx : cerco la 'i' iniziale
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try:
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while i < len(current) and current[i] != 'i':
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i = i + 1
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except:
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logPro.error("SERIALE: errore su ricerca i iniziale")
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if ser.isOpen():
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ser.close()
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sys.exit(1)
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# se non ho trovato la 'i' restituisco ''
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if i == len(current)-1:
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return ret
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else:
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current = current[i+1:i+3]
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# richiesta dati ad IOB
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requestData()
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#sys.stdout.write ( current + '\n')
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except:
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if startstatus == 0:
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logPro.error ('Porta SERIALE non disponibile - ser.inWaiting e filtraggio error...exit')
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if ser.isOpen():
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ser.close()
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sys.exit(1)
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return current
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#---------------------------------------------------------------
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# richiesta dati ad IOB : scrittura su seriale
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def requestData ():
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try :
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ser.write ("$i" + '\r\n')
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ser.flush()
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except :
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if startstatus == 0:
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logPro.error ( "SERIAL: Errore di scrittura/flush")
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#---------------------------------------------------------------
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#Funzione di scrittura su coda con try-except
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def accoda():
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try:
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dtEve = datetime.utcnow().strftime('%Y%m%d%H%M%S%f')[:-3]
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Coda.put(dtEve + '#' + value + '#' + cont)
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except Queue.Full:
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logPro.error( "Queue full" + `dtEve` + '#' + `value` + '#' + `cont` )
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except:
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logPro.error( "NETWORK:Errore http-no com rete-timeout" + url )
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# print "Url aforte" , url
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#--------------------------------------------------------------
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# svuotaCoda x invio dati al server
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def svuota_coda():
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global onLine
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global sending
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global timer_busy
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global NMAXSEND
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#print "start timer "
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if ( timer_busy == False ):
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timer_busy = True
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#print "start timer ok "
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try:
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if not Coda.empty():
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#print "coda da svuotare!"
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response = urllib.urlopen(URLALIVE)
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answ = response.read()
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if answ == 'OK':
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#print "OK alive"
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response2 = urllib.urlopen(URLENABLED + idxMacchina)
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answ2 = response2.read()
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if answ2 == 'OK':
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# aggiorno stato ad online
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if onLine == '0':
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logPro.info("IOB ONLINE!")
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#print("IOB ONLINE")
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onLine = '1' # imposto comunque online
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else:
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if onLine == '1':
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logPro.error("IOB offline")
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#print("IOB offline")
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onLine = '0'
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else:
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if onLine == '1':
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logPro.error("Server offline")
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#print("Server offline")
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onLine = '0'
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# ora verifico SE si possa inviare (ovvero sia online server e NON ci siano altri send attivi...)
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if onLine == '1':
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if sending == '0':
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#segnalo che sono in sending!
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sending = '1'
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# SAM 2016.12.23: modifica x invio FINO A nMaxSend ELEMENTI ad ogni ciclo di svuotamento
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i = NMAXSEND
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while i >= 0:
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if not Coda.empty():
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# formatto dataOra corrente
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dtCurr = datetime.utcnow().strftime('%Y%m%d%H%M%S%f')[:-3]
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#prendo primo elemento dalla coda
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resp = Coda.get()
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# recupero valori da elemento coda!
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dtEve = resp.split("#")[0]
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value = resp.split("#")[1]
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cnt = resp.split("#")[2]
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url = URLBASE + idxMacchina + URLADV1 + value
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url = url + '&dtCurr=' + dtCurr + '&dtEve=' + dtEve + '&cnt=' + cnt
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# CHIAMO URL
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response3 = urllib.urlopen ( url )
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answ3 = response3.read()
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#print(url)
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# log valore inviato!
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logSnd.info( value + ' ['+ cnt +']' + ' R:' + answ3 )
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#print "Valore smaltito dalla coda"
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# tolgo 1 al contatore
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i -= 1
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# completato invio, riporto sending a zero!
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sending = '0'
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else:
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logPro.info("WAIT active send to complete")
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else:
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pass
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else:
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pass
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except:
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if onLine == '1':
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logPro.error("Server Non raggiungibile")
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#print "Non raggiungibile"
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onLine = '0'
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# in ogni caso
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timer_busy = False
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#print "end timer ok"
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#print "end timer "
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#---------------------------------------------------------------
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# funzione timer thread
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#---------------------------------------------------------------
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def do_every (interval, worker_func, iterations = 0):
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if iterations != 1:
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threading.Timer (
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interval,
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do_every, [interval, worker_func, 0 if iterations == 0 else iterations-1]
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).start ();
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worker_func ();
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#---------------------------------------------------------------
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# gestione contatore
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#---------------------------------------------------------------
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def contatore():
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try:
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global cont
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ctr = int(cont)
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ctr +=1
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ctr = ctr % 10000 # round robin 10000 eventi x track
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cont = str(ctr)
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except:
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print("errore incremento contatore")
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#---------------------------------------------------------------
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# avvia porta seriale
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#---------------------------------------------------------------
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def avviaSeriale():
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global ser
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try:
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ser = serial.Serial(
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port = comm_port ,
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baudrate = 9600 ,
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parity = serial.PARITY_NONE ,
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stopbits = serial.STOPBITS_ONE ,
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bytesize = serial.EIGHTBITS
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)
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startstatus = 0
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except serial.serialutil.SerialException , e :
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try:
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if startstatus == 0:
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logPro.error ( "SERIAL:Errore apertura seriale - " + comm_port)
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except:
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pass
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sys.stdout.write ( '\n' + PROGRAM_NAME + ' Error 1 opening serial\n\n%s\n\n' % e )
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#if errormsglen > 30:
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if ser.isOpen():
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ser.close()
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sys.exit (1)
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print( "\n\n" + PROGRAM_NAME + " - init ok \n\n")
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#---------------------------------------------------------------
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# Ri avvia porta seriale
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#---------------------------------------------------------------
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def RiavviaSeriale():
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global ser
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try:
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if ser.isOpen():
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ser.close()
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ser = serial.Serial(
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port = comm_port ,
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baudrate = 9600 ,
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parity = serial.PARITY_NONE ,
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stopbits = serial.STOPBITS_ONE ,
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bytesize = serial.EIGHTBITS
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)
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startstatus = 0
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except serial.serialutil.SerialException , e :
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try:
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if startstatus == 0:
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logPro.error ( "SERIAL:Errore apertura seriale - " + comm_port)
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except:
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pass
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sys.stdout.write ( '\n' + PROGRAM_NAME + ' Error 7 reopening serial\n\n%s\n\n' % e )
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#if errormsglen > 30:
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if ser.isOpen():
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ser.close()
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sys.exit (1)
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#---------------------------------------------------------------
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#---------------------------------------------------------------
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#---------------------------------------------------------------
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# MAIN
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try:
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config = ConfigParser.RawConfigParser()
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config.read ( 'IOB.cfg' )
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SAMPLETIME = config.getfloat ( 'time' , 'SAMPLETIME' )
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TIMEOUTSHORT = config.getfloat ( 'time' , 'TIMEOUTSHORT' )
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TIMEOUTLONG = config.getfloat ( 'time' , 'TIMEOUTLONG' )
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SENDURLTIME = config.getfloat ( 'time' , 'SENDURLTIME' )
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NMAXSEND = config.getint ( 'time' , 'NMAXSEND' )
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idxMacchina = config.get ( 'id' , 'idxMacchina' )
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comm_port = config.get ( 'comm' , 'port' )
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URLBASE = config.get ( 'web' , 'URLBASE' )
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URLENABLED = config.get('web' , 'URLENABLED')
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URLALIVE = config.get ('web' , 'URLALIVE')
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URLADV1 = config.get ( 'web' , 'URLADV1' )
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LOGFILE = config.get ( 'log' , 'LOGFILE' )
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LOGLEVEL = config.get ( 'log' , 'LOGLEVEL' )
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B_blinking[0] = config.getint ( 'blink' , 'bit0' )
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B_blinking[1] = config.getint ( 'blink' , 'bit1' )
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B_blinking[2] = config.getint ( 'blink' , 'bit2' )
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B_blinking[3] = config.getint ( 'blink' , 'bit3' )
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B_blinking[4] = config.getint ( 'blink' , 'bit4' )
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B_blinking[5] = config.getint ( 'blink' , 'bit5' )
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B_blinking[6] = config.getint ( 'blink' , 'bit6' )
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B_blinking[7] = config.getint ( 'blink' , 'bit7' )
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MAX_COUNTER_BLINK = config.getint ( 'blink' , 'MAX_COUNTER_BLINK' )
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# cv 2.1 se bit = 1 allora inverto segnale in ingresso...
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B_inverting[0] = config.getint ( 'invert' , 'bit0' )
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B_inverting[1] = config.getint ( 'invert' , 'bit1' )
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B_inverting[2] = config.getint ( 'invert' , 'bit2' )
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B_inverting[3] = config.getint ( 'invert' , 'bit3' )
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B_inverting[4] = config.getint ( 'invert' , 'bit4' )
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B_inverting[5] = config.getint ( 'invert' , 'bit5' )
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B_inverting[6] = config.getint ( 'invert' , 'bit6' )
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B_inverting[7] = config.getint ( 'invert' , 'bit7' )
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# cv 2.2 se bit = 1 allora filtro segnali brevi ...
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B_filter[0] = config.getint ( 'filter' , 'bit0' )
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B_filter[1] = config.getint ( 'filter' , 'bit1' )
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B_filter[2] = config.getint ( 'filter' , 'bit2' )
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B_filter[3] = config.getint ( 'filter' , 'bit3' )
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B_filter[4] = config.getint ( 'filter' , 'bit4' )
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B_filter[5] = config.getint ( 'filter' , 'bit5' )
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B_filter[6] = config.getint ( 'filter' , 'bit6' )
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B_filter[7] = config.getint ( 'filter' , 'bit7' )
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MAX_COUNTER_FILTER = config.getint ( 'filter' , 'MAX_COUNTER_FILTER' )
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except:
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print "\n\n" + PROGRAM_NAME + ' - Error 4 - in config file ' 'IOB.cfg'
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if ser.isOpen():
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ser.close()
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sys.exit(1)
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#--------------------------------------------
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# oggetto Logger
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#--------------------------------------------
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try:
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logging.basicConfig(level=logging.DEBUG,
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format='%(asctime)s %(name)-8s %(levelname)-8s %(message)s',
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datefmt='%Y-%m-%d %H:%M:%S',
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filename=LOGFILE,
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filemode='a'
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)
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# aggiungo 2 logger specifici x queue e send...
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logQue = logging.getLogger('queue')
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logSnd = logging.getLogger('sendUrl')
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logPro = logging.getLogger('program')
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except:
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# manda mail o simili - FARE!!!
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print "LOG: Impossibile creare file log con nome "
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print (LOGFILE)
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#--------------------------------------------
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print "\n\n" + PROGRAM_NAME + "\n\n"
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global startstatus
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startstatus = 1
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if startstatus == 1:
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logPro.info("Avvio Programma" + PROGRAM_NAME)
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## Verifica l'OS e di conseguenza carica il file relativo con metodo di lockfile appropriato + check singola istanza
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if os.name == 'posix':
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import unix
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else:
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import win
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logPro.info( "Start " + PROGRAM_NAME )
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# lettura file configurazione
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# [id]
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# idxMacchina = 2001
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# [time]
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# SAMPLETIME = 0.1
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# TIMEOUTSHORT = 200
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# TIMEOUTLONG = 6000
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print ( ' comm_port = %s' % ( comm_port ) )
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print ( ' idxMacchina = %s' % ( idxMacchina ) )
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print ( ' SAMPLETIME = %4.2f' % ( SAMPLETIME ) )
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print ( ' TIMEOUTSHORT = %4.2f' % ( TIMEOUTSHORT ) )
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print ( ' TIMEOUTLONG = %4.2f' % ( TIMEOUTLONG ) )
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print ( ' SENDURLTIME = %4.2f' % ( SENDURLTIME ) )
|
|
print ( ' URLBASE = %s' % ( URLBASE ) )
|
|
print ( ' URLADV1 = %s' % ( URLADV1 ) )
|
|
print ( ' LOGFILE = %s' % ( LOGFILE ) )
|
|
print ( ' LOGLEVEL = %s' % ( LOGLEVEL ) )
|
|
|
|
# -sys.stdout.write ( 'idxMacchina ?' + idxMacchina + '\n')
|
|
|
|
to_short = TIMEOUTSHORT
|
|
to_long = TIMEOUTLONG
|
|
|
|
|
|
#--------------------------------------------------------------
|
|
# apertura seriale
|
|
|
|
avviaSeriale()
|
|
|
|
#--------------------------------------------------------------
|
|
# MARCO: qui inserire avvio thread di "svuotaCoda"
|
|
|
|
# avviaSvuotaCoda
|
|
#print "Avvia svuota coda"
|
|
|
|
do_every ( SENDURLTIME , svuota_coda );
|
|
|
|
#---------------------------------------------------------------
|
|
# ciclo forever and ever
|
|
|
|
old = ''
|
|
|
|
# richiesta dati ad IOB
|
|
try:
|
|
requestData()
|
|
except:
|
|
logPro.error("SERIALE: errore sul try di requestData")
|
|
if ser.isOpen():
|
|
ser.close()
|
|
sys.exit(1)
|
|
|
|
#print "Avvio ciclo"
|
|
logPro.info("Avvio loop principale")
|
|
|
|
while 1:
|
|
|
|
try:
|
|
time.sleep (SAMPLETIME)
|
|
except:
|
|
logPro.error("First_SLEEP: errore attesa sampletime")
|
|
|
|
# lettura dati da IOB
|
|
try:
|
|
value = readSeriale()
|
|
except:
|
|
if startstatus == 0:
|
|
logPro.error("errore PRIMA LETTURA SERIALE")
|
|
if ser.isOpen():
|
|
ser.close()
|
|
sys.exit(1)
|
|
|
|
if ( value != '' ) :
|
|
if value != old :
|
|
#loggo e invio dati
|
|
try:
|
|
logQue.info( value + ' ['+ cont +']')
|
|
errormsglen = 0
|
|
accoda()
|
|
contatore()
|
|
except:
|
|
logPro.error("URLBROWSER: errore registrazione valore e accoda")
|
|
pass
|
|
#enable e reset timer
|
|
to_enable = True
|
|
to_short = TIMEOUTSHORT
|
|
to_long = TIMEOUTLONG
|
|
|
|
old = value
|
|
|
|
|
|
# gestione timeout breve
|
|
if ( to_enable ) :
|
|
to_short = to_short - SAMPLETIME
|
|
if to_short <= 0:
|
|
#loggo e invio dati
|
|
try:
|
|
logQue.info( '>' + value + ' ['+ cont +']')
|
|
errormsglen = 0
|
|
accoda()
|
|
contatore()
|
|
except:
|
|
logPro.error("URLBROWSER: errore registrazione valore e accoda TO_short")
|
|
pass
|
|
to_short = TIMEOUTSHORT
|
|
to_enable = False # dopo un colpo il timer breve viene disabilitato
|
|
to_long = TIMEOUTLONG
|
|
|
|
# gestione timeout lungo
|
|
to_long = to_long - SAMPLETIME
|
|
if to_long <= 0:
|
|
#loggo e invio dati
|
|
try:
|
|
logQue.info( '>>' + value + ' ['+ cont +']')
|
|
errormsglen = 0
|
|
accoda()
|
|
contatore()
|
|
except:
|
|
logPro.error("URLBROWSER: errore registrazione valore e accoda TO_long")
|
|
pass
|
|
to_long = TIMEOUTLONG
|