blob: 71a8e7d724fe7885ef61cdcc20508d1869a0284a (
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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
/**
* @file
* @author 2012-2014 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#ifndef INVOKERIMPL_H_8A15A102
#define INVOKERIMPL_H_8A15A102
//#include "uscxml/config.h"
#include "uscxml/Common.h"
#include "uscxml/plugins/EventHandler.h"
#include "uscxml/messages/Event.h"
#include <set>
namespace uscxml {
class Interpreter;
class InterpreterMonitor;
class ActionLanguage;
class Logger;
/**
* @ingroup invoker
* @ingroup callback
* Callbacks available for every invoker.
*/
class USCXML_API InvokerCallbacks {
public:
virtual ~InvokerCallbacks() {} ///< silence virtual destructor warning from swig
virtual void enqueueInternal(const Event& event) = 0;
virtual void enqueueExternal(const Event& event) = 0;
virtual ActionLanguage* getActionLanguage() = 0; /// We return a pointer to relax dependencies in transpiled mode
virtual std::set<InterpreterMonitor*> getMonitors() = 0;
virtual std::string getBaseURL() = 0;
virtual Logger getLogger() = 0;
};
/**
* @ingroup invoker
* @ingroup abstract
* Abstract base class for all invokers.
*/
class USCXML_API InvokerImpl : public EventHandlerImpl {
public:
InvokerImpl() {};
virtual ~InvokerImpl() {}
virtual std::list<std::string> getNames() = 0;
/**
* Factory demands a new instance.
* @param callbacks An object implementing the invoker callbacks.
*/
virtual std::shared_ptr<InvokerImpl> create(InvokerCallbacks* callbacks) = 0;
/**
* Invoker's parent state became active at the end of a macro-step.
* @param source The content of the invoke's `src` or evaluated `srcexpr` attribute
* @param invokeEvent The invocation with all its data as an event
*/
virtual void invoke(const std::string& source, const Event& invokeEvent) = 0;
/**
* The invokers's parent state was left at the end of a macro-step.
*/
virtual void uninvoke() = 0;
/**
* Invoker received an event from the SCXML Interpreter.
*/
virtual void eventFromSCXML(const Event& event) = 0;
/**
* Set the invocation identifier as required when returning events.
* @param invokeId The invocation identifier.
*/
virtual void setInvokeId(const std::string& invokeId) {
_invokeId = invokeId;
}
/**
* Load a state from a Data object
* @param encodedState The state we returned somewhen else via serialize.
*/
virtual void deserialize(const Data& encodedState) {}
/**
* Save our state into a Data object
*/
virtual Data serialize() {
return Data();
}
protected:
/**
* Return an event to the SCXML Interpreter instance.
* @param event An event to enqueue at the interpreter's external queue.
* @param type The type of this I/O Processor for `event.origintype`.
* @param invokeId The invocation identifier of this invocation for `event.invokeid`.
* @param internal If the event is to be delivered to the Interpreter's internal queue instead.
*/
void eventToSCXML(Event& event, const std::string& type, const std::string& invokeId, bool internal = false);
std::string _invokeId;
InvokerCallbacks* _callbacks;
};
}
#endif /* end of include guard: INVOKERIMPL_H_8A15A102 */
|
