weatherstation/Logger.py

85 lines
2.7 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import time
import sys
import traceback
import xml.etree.ElementTree as ET
import os
from timeFunctions import *
from config import SensorType, setup_data_echo, setup_data_log
from config import settings
class Logger(object):
def __init__(self, log):
self.temp_prev_default = settings.prev_temps_default
self.prev_temps = self.__build_prev_temps__()
self.temp_max_diff = settings.tempmaxdiff
self.log = log
self.records = settings.records
self.dataecho = setup_data_echo()
self.datalog = setup_data_log()
def __build_prev_temps__(self):
prev_temps={}
hosts_name = "hosts"
if hosts_name in settings:
for i in settings[hosts_name]:
for j in settings[hosts_name][i]['sensors']:
if settings[hosts_name][i]['sensors'][j][1] == SensorType.temp:
prev_temps[j]=self.temp_prev_default
return prev_temps
def temp_rise(self, new, sensor):
old = self.prev_temps[sensor]
if(old == self.temp_prev_default):
return True
if(((old-new) > self.temp_max_diff) or ((new-old) > self.temp_max_diff)):
self.log.error('error checking ' + sensor + ';prev(' + str(old) + ');cur(' + str(new) + ');')
return False
else:
return True
##########################################
# common function to write value to file #
##########################################
def write_value(self, value, sensor):
if settings.legacy_record:
valuename = self.records + "/" + sensor + "_" + preptime()
valuelog=open(valuename, 'a')
valuelog.write(str(value) + ';' + str( int(time.time()) ) + "\n")
valuelog.close()
self.datalog.info('%s;%s;%s',value, int(time.time()), sensor)
##########################################
# generic callback #
##########################################
def cb_generic(self,value, sensor, type, supress = False):
if type == SensorType.temp:
if self.temp_rise(value, sensor):
self.write_value(value, sensor)
self.prev_temps[sensor] = value
elif (type == SensorType.none):
return
else:
self.write_value(value, sensor)
unit = settings.sensor_properties[type]
if not supress:
self.dataecho.info(sensor + ': ' + str(value/unit[1]) + ' ' + unit[2])
###########################################
# exception logging #
###########################################
def printException(self, inst):
tree = ET.parse(os.path.join(settings.log,settings.exceptionlog))
root = tree.getroot()
new = ET.Element('exception', {'class':str( type(inst) ).split("'")[1], 'date':str( time.ctime() ), 'time':str( int(time.time()) ), 'type':str(inst)})
new.text = traceback.format_exc()
root.append(new)
tree.write(settings.exceptionlog)
message = 'an Exception happend @' + time.ctime()+"\n"
self.log.error(message)
print(message)