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Smaller Log files by truncation #84

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Smaller Log files by truncation #84

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26 changes: 15 additions & 11 deletions modules/core/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@

import time
import uuid
from os import popen, system


class NotificationAPI(object):
Expand Down Expand Up @@ -84,7 +85,7 @@ class SensorAPI(object):
def init_sensors(self):
'''
Initialize all sensors
:return:
:return:
'''

self.app.logger.info("Init Sensors")
Expand All @@ -109,15 +110,15 @@ def stop_sensor(self, id):
def init_sensor(self, id):
'''
initialize sensor by id
:param id:
:return:
:param id:
:return:
'''

def start_active_sensor(instance):
'''
start active sensors as background job
:param instance:
:return:
:param instance:
:return:
'''
instance.execute()

Expand Down Expand Up @@ -152,6 +153,9 @@ def save_to_file(self, id, value, prefix="sensor"):
filename = "./logs/%s_%s.log" % (prefix, str(id))
formatted_time = strftime("%Y-%m-%d %H:%M:%S", localtime())
msg = str(formatted_time) + "," +str(value) + "\n"
if popen("tail -n 2 "+ filename).read().count(","+ str(value)+ "\n") == 2:
# if the data was logged twice, delete the last logged data and write a new one
system("truncate -s -\"$(tail -n1 " + filename + " | wc -c)\" " + filename)

with open(filename, "a") as file:
file.write(msg)
Expand Down Expand Up @@ -448,7 +452,7 @@ def init_kettle(self, id):
def run_init(self):
'''
call all initialziers after startup
:return:
:return:
'''
self.app.logger.info("Invoke Init")
self.cache["init"] = sorted(self.cache["init"], key=lambda k: k['order'])
Expand All @@ -462,10 +466,10 @@ def backgroundtask(self, key, interval, config_parameter=None):

'''
Background Task Decorator
:param key:
:param interval:
:param config_parameter:
:return:
:param key:
:param interval:
:param config_parameter:
:return:
'''
def real_decorator(function):
self.cache["background"].append({"function": function, "key": key, "interval": interval, "config_parameter": config_parameter})
Expand All @@ -477,7 +481,7 @@ def wrapper(*args, **kwargs):
def run_background_processes(self):
'''
call all background task after startup
:return:
:return:
'''
self.app.logger.info("Start Background")

Expand Down