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#! /usr/bin/env python
from ConfigParser import SafeConfigParser, NoOptionError
class ParseError(Exception):
"""
Custom exception class for config file
"""
def __init__(self, message):
self.msg = message
def __str__(self):
return 'error parsing config file : %s' % self.msg
class APIConfig:
"""
The purpose of this class is to load values correctly from the config file.
Each key is declared as an attribute in __init__() and linked in parse()
"""
def __init__(self):
self._default_config_location = "../etc/config.ini"
self.elastic_url = 'http://localhost:9200'
self.elastic_creds = None
self.kibana_url = None
self.is_js = True
self.js_path = None
def _get_str_parameter(self, section, param):
try:
return self._parser.get(section, param)
except NoOptionError:
raise ParseError("[%s.%s] parameter not found" % (section, param))
def _get_int_parameter(self, section, param):
try:
return int(self._get_str_parameter(section, param))
except ValueError:
raise ParseError("[%s.%s] not an int" % (section, param))
def _get_bool_parameter(self, section, param):
result = self._get_str_parameter(section, param)
if str(result).lower() == 'true':
return True
if str(result).lower() == 'false':
return False
raise ParseError(
"[%s.%s : %s] not a boolean" % (section, param, result))
@staticmethod
def parse(config_location=None):
obj = APIConfig()
if config_location is None:
config_location = obj._default_config_location
obj._parser = SafeConfigParser()
obj._parser.read(config_location)
if not obj._parser:
raise ParseError("%s not found" % config_location)
# Linking attributes to keys from file with their sections
obj.elastic_url = obj._get_str_parameter("elastic", "url")
obj.elastic_creds = obj._get_str_parameter("elastic", "creds")
obj.kibana_url = obj._get_str_parameter("kibana", "url")
obj.is_js = obj._get_bool_parameter("kibana", "js")
obj.js_path = obj._get_str_parameter("kibana", "js_path")
return obj
def __str__(self):
return "elastic_url = %s \n" \
"elastic_creds = %s \n" \
"kibana_url = %s \n" \
"is_js = %s \n" \
"js_path = %s \n" % (self.elastic_url,
self.elastic_creds,
self.kibana_url,
self.is_js,
self.js_path)
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