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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
// ObjectRegistry.hh for FbTk
// Copyright (c) 2007 Fluxbox Team (fluxgen at fluxbox dot org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
// $Id: $
#ifndef OBJECTREGISTRY_HH
#define OBJECTREGISTRY_HH
#include "StringUtil.hh"
#include <string>
#include <map>
using std::string;
namespace FbTk {
#define REGISTER_OBJECT_PARSER(name, parser, type) \
namespace { \
static const bool p_register_##type_##name = FbTk::ObjectRegistry<type>::instance().registerObject(#name, parser); \
}
#define REGISTER_OBJECT_PARSER_NSBASE(name, parser, space, base) \
namespace { \
static const bool p_register_##type_##name = FbTk::ObjectRegistry<space::base >::instance().registerObject(#name, parser); \
}
/* Include some basic Object creators */
template <typename Derived, typename Base>
Base *ObjectCreator(const string &name, const string &args, bool trusted) {
return new Derived();
}
#define REGISTER_OBJECT(name, derived, base) \
namespace { \
static const bool p_register_##type_##name = FbTk::ObjectRegistry<base >::instance().registerObject(#name, FbTk::ObjectCreator<derived, base >); \
}
#define REGISTER_OBJECT_NSBASE(name, derived, space, base) \
namespace { \
static const bool p_register_##type_##name = FbTk::ObjectRegistry<space::base >::instance().registerObject(#name, FbTk::ObjectCreator<derived, space::base >); \
}
template <typename Derived, typename Base>
Base *ObjectCreatorWithArgs(const string &name, const string &args,
bool trusted) {
return new Derived(args);
}
#define REGISTER_OBJECT_WITH_ARGS(name, derived, base) \
namespace { \
static const bool p_register_##type_##name = FbTk::ObjectRegistry<base >::instance().registerObject(#name, FbTk::ObjectCreatorWithArgs<derived, base >); \
}
#define REGISTER_OBJECT_WITH_ARGS_NSBASE(name, derived, space, base) \
namespace { \
static const bool p_register_##type_##name = FbTk::ObjectRegistry<space::base >::instance().registerObject(#name, FbTk::ObjectCreatorWithArgs<derived, space::base >); \
}
template <typename Derived, typename Base>
Base *UntrustedObjectCreator(const string &name, const string &args,
bool trusted) {
if (!trusted) return 0;
return new Derived();
}
#define REGISTER_UNTRUSTED_OBJECT(name, derived, base) \
namespace { \
static const bool p_register_##type_##name = FbTk::ObjectRegistry<base >::instance().registerObject(#name, FbTk::UntrustedObjectCreator<derived, base >); \
}
#define REGISTER_UNTRUSTED_OBJECT_NSBASE(name, derived, space, base) \
namespace { \
static const bool p_register_##type_##name = FbTk::ObjectRegistry<space::base >::instance().registerObject(#name, FbTk::UntrustedObjectCreator<derived, space::base >); \
}
template <typename Derived, typename Base>
Base * UntrustedObjectCreatorWithArgs(const string &name, const string &args,
bool trusted) {
if (!trusted) return 0;
return new Derived(args);
}
#define REGISTER_UNTRUSTED_OBJECT_WITH_ARGS(name, derived, base) \
namespace { \
static const bool p_register_##type_##name = FbTk::ObjectRegistry<base >::instance().registerObject(#name, FbTk::UntrustedObjectCreatorWithArgs<derived, base >); \
}
#define REGISTER_UNTRUSTED_OBJECT_WITH_ARGS_NSBASE(name, derived, space, base) \
namespace { \
static const bool p_register_##type_##name = FbTk::ObjectRegistry<space::base >::instance().registerObject(#name, FbTk::UntrustedObjectCreatorWithArgs<derived, space::base >); \
}
template <typename Base>
class ObjectRegistry {
public:
typedef Base * CreateFunction(const string &name, const string &args, bool trusted);
typedef std::map<string, CreateFunction *> CreatorMap;
static ObjectRegistry<Base > &instance() {
static ObjectRegistry<Base > s_instance;
return s_instance;
}
Base *parse(const string &name, const string &args, bool trusted = true) const {
string lc = StringUtil::toLower(name);
typename CreatorMap::const_iterator it = m_creators.find(lc.c_str());
if (it == m_creators.end())
return 0;
else
return it->second(lc, args, trusted);
}
Base *parse(const string &line, bool trusted = true) const {
// parse args and command
string command, args;
StringUtil::getFirstWord(line, command, args);
StringUtil::removeFirstWhitespace(args);
StringUtil::removeTrailingWhitespace(args);
// now we have parsed command and args
return parse(command, args, trusted);
}
bool registerObject(string name, CreateFunction createFunction) {
name = StringUtil::toLower(name);
m_creators[name] = createFunction;
return true;
}
const CreatorMap creatorMap() const { return m_creators; }
private:
ObjectRegistry() {}
~ObjectRegistry() {}
CreatorMap m_creators;
};
}; // end namespace FbTk
#endif // OBJECTREGISTRY_HH
|
