mirror of https://github.com/CIRCL/AIL-framework
100 lines
2.0 KiB
Python
100 lines
2.0 KiB
Python
#!/usr/bin/python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
:mod:`publisher` -- Publish logging messages on a redis channel
|
|
|
|
To use this module, you have to define at least a channel name.
|
|
|
|
.. note::
|
|
The channel name should represent the area of the program you want
|
|
to log. It can be whatever you want.
|
|
|
|
|
|
"""
|
|
|
|
import redis
|
|
|
|
from pubsublogger.exceptions import InvalidErrorLevel, NoChannelError
|
|
|
|
# use a TCP Socket by default
|
|
use_tcp_socket = True
|
|
|
|
#default config for a UNIX socket
|
|
unix_socket = '/tmp/redis.sock'
|
|
# default config for a TCP socket
|
|
hostname = 'localhost'
|
|
port = 6380
|
|
|
|
channel = None
|
|
redis_instance = None
|
|
|
|
__error_levels = ('DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL')
|
|
|
|
|
|
def __connect():
|
|
"""
|
|
Connect to a redis instance.
|
|
"""
|
|
global redis_instance
|
|
if use_tcp_socket:
|
|
redis_instance = redis.StrictRedis(host=hostname, port=port)
|
|
else:
|
|
redis_instance = redis.StrictRedis(unix_socket_path = unix_socket)
|
|
|
|
|
|
def log(level, message):
|
|
"""
|
|
Publish `message` with the `level` the redis `channel`.
|
|
|
|
:param level: the level of the message
|
|
:param message: the message you want to log
|
|
"""
|
|
if redis_instance is None:
|
|
__connect()
|
|
|
|
if level not in __error_levels:
|
|
raise InvalidErrorLevel('You have used an invalid error level. \
|
|
Please choose in: ' + ', '.join(__error_levels))
|
|
if channel is None:
|
|
raise NoChannelError('Please set a channel.')
|
|
c = '{channel}.{level}'.format(channel=channel, level=level)
|
|
redis_instance.publish(c, message)
|
|
|
|
|
|
def debug(message):
|
|
"""
|
|
Publush a DEBUG `message`
|
|
"""
|
|
log('DEBUG', message)
|
|
|
|
|
|
def info(message):
|
|
"""
|
|
Publush an INFO `message`
|
|
"""
|
|
log('INFO', message)
|
|
|
|
|
|
def warning(message):
|
|
"""
|
|
Publush a WARNING `message`
|
|
"""
|
|
log('WARNING', message)
|
|
|
|
|
|
def error(message):
|
|
"""
|
|
Publush an ERROR `message`
|
|
"""
|
|
log('ERROR', message)
|
|
|
|
|
|
def critical(message):
|
|
"""
|
|
Publush a CRITICAL `message`
|
|
"""
|
|
log('CRITICAL', message)
|
|
|
|
|