summaryrefslogtreecommitdiffstats
path: root/utils/test/testapi/opnfv_testapi/common/config.py
blob: 84a127391436a65fef7c6d403a4ff8eafd5171e1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
##############################################################################
# Copyright (c) 2015 Orange
# guyrodrigue.koffi@orange.com / koffirodrigue@gmail.com
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
# feng.xiaowei@zte.com.cn remove prepare_put_request            5-30-2016
##############################################################################
import ConfigParser


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/opnfv_testapi/config.ini"
        self.mongo_url = None
        self.mongo_dbname = None
        self.api_port = None
        self.api_debug_on = None
        self.api_authenticate_on = None
        self._parser = None
        self.swagger_base_url = None

    def _get_parameter(self, section, param):
        try:
            return self._parser.get(section, param)
        except ConfigParser.NoOptionError:
            raise ParseError("[%s.%s] parameter not found" % (section, param))

    def _get_int_parameter(self, section, param):
        try:
            return int(self._get_parameter(section, param))
        except ValueError:
            raise ParseError("[%s.%s] not an int" % (section, param))

    def _get_bool_parameter(self, section, param):
        result = self._get_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 = ConfigParser.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.mongo_url = obj._get_parameter("mongo", "url")
        obj.mongo_dbname = obj._get_parameter("mongo", "dbname")

        obj.api_port = obj._get_int_parameter("api", "port")
        obj.api_debug_on = obj._get_bool_parameter("api", "debug")
        obj.api_authenticate_on = obj._get_bool_parameter("api",
                                                          "authenticate")

        obj.swagger_base_url = obj._get_parameter("swagger", "base_url")

        return obj

    def __str__(self):
        return "mongo_url = %s \n" \
               "mongo_dbname = %s \n" \
               "api_port = %s \n" \
               "api_debug_on = %s \n" \
               "swagger_base_url = %s \n" % (self.mongo_url,
                                             self.mongo_dbname,
                                             self.api_port,
                                             self.api_debug_on,
                                             self.api_authenticate_on,
                                             self.swagger_base_url)