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
|
/* Copyright 2013 10gen Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <iostream>
#include "mongo/base/status.h"
#include "mongo/util/options_parser/value.h"
namespace mongo {
namespace optionenvironment {
/**
* An OptionType is an enum of all the types we support in the OptionsParser
*/
enum OptionType {
StringVector, // po::value< std::vector<std::string> >
Bool, // po::value<bool>
Double, // po::value<double>
Int, // po::value<int>
Long, // po::value<long>
String, // po::value<std::string>
UnsignedLongLong, // po::value<unsigned long long>
Unsigned, // po::value<unsigned>
Switch // po::bool_switch
};
/**
* The OptionDescription and PositionalOptionDescription classes are containers for information
* about the options we are expecting either on the command line or in config files. These
* should be registered in an OptionSection instance and passed to an OptionsParser.
*/
class OptionDescription {
public:
OptionDescription(const std::string& dottedName,
const std::string& singleName,
const OptionType type,
const std::string& description,
const bool isVisible = true,
const Value defaultValue = Value(),
const Value implicitValue = Value(),
const bool isComposing = false)
: _dottedName(dottedName),
_singleName(singleName),
_type(type),
_description(description),
_isVisible(isVisible),
_default(defaultValue),
_implicit(implicitValue),
_isComposing(isComposing) { }
std::string _dottedName; // Used for JSON config and in Environment
std::string _singleName; // Used for boost command line and INI
OptionType _type; // Storage type of the argument value, or switch type (bool)
// (required by boost)
std::string _description; // Description of option printed in help output
bool _isVisible; // Visible in help output
Value _default; // Value if option is not specified
Value _implicit; // Value if option is specified with no argument
bool _isComposing; // Aggregate values from different sources instead of overriding
};
class PositionalOptionDescription {
public:
PositionalOptionDescription(const std::string& name,
const OptionType type,
int count = 1)
: _name(name),
_type(type),
_count(count) { }
std::string _name; // Name used to access the value of this option after parsing
OptionType _type; // Storage type of the positional argument (required by boost)
int _count; // Max number of times this option can be specified. -1 = unlimited
};
} // namespace optionenvironment
} // namespace mongo
|
