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# -*- coding: utf-8 -*-

# Description: apache cache netdata python.d module

# Author: Pawel Krupa (paulfantom)

from base import LogService

priority = 60000

retries = 60

# update_every = 3

ORDER = ['cache']

CHARTS = {

'cache': {

'options': [None, 'apache cached responses', 'percent cached', 'cached', 'apache_cache.cache', 'stacked'],

'lines': [

["hit", 'cache', "percentage-of-absolute-row"],

["miss", None, "percentage-of-absolute-row"],

["other", None, "percentage-of-absolute-row"]

]}

}

class Service(LogService):

def __init__(self, configuration=None, name=None):

LogService.__init__(self, configuration=configuration, name=name)

if len(self.log_path) == 0:

self.log_path = "/var/log/apache2/cache.log"

self.order = ORDER

self.definitions = CHARTS

def _get_data(self):

"""

Parse new log lines

:return: dict

"""

try:

raw = self._get_raw_data()

if raw is None:

return None

elif not raw:

return {'hit': 0,

'miss': 0,

'other': 0}

except (ValueError, AttributeError):

return None

hit = 0

miss = 0

other = 0

for line in raw:

if "cache hit" in line:

hit += 1

elif "cache miss" in line:

miss += 1

else:

other += 1

return {'hit': hit,

'miss': miss,

'other': other}