blob: 90c5a0f7d61f49248287813dbd3022fd33956e2e (
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
99
100
101
102
103
104
105
106
107
108
109
110
|
#ifndef _INCLUDE__GEM_PLUGINS_PLUGINFACTORY_H_
#define _INCLUDE__GEM_PLUGINS_PLUGINFACTORY_H_
#include "Gem/ExportDef.h"
#include <map>
#include <vector>
#include <string>
#include <typeinfo>
#include <iostream>
namespace gem
{
class GEM_EXTERN BasePluginFactory
{
protected:
int doLoadPlugins(const std::string&basename, const std::string&path);
BasePluginFactory(void);
virtual ~BasePluginFactory(void);
std::vector<std::string>get(void);
void*get(std::string);
void set(std::string, void*);
private:
class Pimpl;
Pimpl*m_pimpl;
};
template<class Class>
class GEM_EXPORT PluginFactory : public BasePluginFactory
{
public:
/**
* constructor function type (without arguments)
*/
typedef Class*(ctor_t)(void);
/**
* register a a constructor associated with a given ID
*/
static void registerClass(std::string id, ctor_t*c);
/**
* get an instance of class constructed by the constructor associated with the given ID
*/
static Class*getInstance(std::string id);
/**
* get a list of all IDs currently registered with this factory
*/
static std::vector<std::string>getIDs(void);
/**
* load more plugins
*/
static int loadPlugins(std::string basename, std::string path=std::string(""));
private:
static PluginFactory<Class>*s_factory;
public:
static PluginFactory<Class>*getPluginFactory(void);
private:
void doRegisterClass(std::string id, ctor_t*c);
Class*doGetInstance(std::string id);
std::vector<std::string>doGetIDs(void);
};
namespace PluginFactoryRegistrar
{
/**
* creates a new ChildClass and returns it as a (pointer to) an instance of BaseClass
*/
template<class ChildClass, class BaseClass>
static BaseClass* allocator(void);
/**
* registers a ChildClass with a certain ID in the BaseClass factory
*
* example:
* static gem::PluginFactoryRegistrar<Child, Base, std::string > basefac_childreg("childID"); // register Child as 'childID'
* Base*instance=gem::PluginFactory<Base>::getInstance("childID"); // returns an instance of Child
*/
template<class ChildClass, class BaseClass>
struct registrar {
registrar(std::string ID);
};
/**
* registers a dummy constructor with a default ID
*/
template<class BaseClass>
struct dummy {
dummy(void);
};
};
/* include the actual implementation */
#include "PluginFactoryTimple.h"
}; // namespace gem
#endif /* _INCLUDE__GEM_PLUGINS_PLUGINFACTORY_H_ */
|
