Mercurial > hg > orthanc-stone
comparison Framework/Messages/ICallable.h @ 299:3897f9f28cfa am-callable-and-promise
backup work in progress: updated messaging framework with ICallable
author | am@osimis.io |
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date | Fri, 14 Sep 2018 16:44:01 +0200 |
parents | |
children | b70e9be013e4 |
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298:f58bfb7bbcc9 | 299:3897f9f28cfa |
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1 /** | |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2018 Osimis S.A., Belgium | |
6 * | |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #pragma once | |
23 | |
24 #include "IMessage.h" | |
25 | |
26 #include <boost/noncopyable.hpp> | |
27 | |
28 namespace OrthancStone { | |
29 | |
30 class IObserver; | |
31 | |
32 // This is referencing an object and member function that can be notified | |
33 // by an IObservable. The object must derive from IO | |
34 // The member functions must be of type "void Function(const IMessage& message)" or reference a derived class of IMessage | |
35 class ICallable : public boost::noncopyable | |
36 { | |
37 public: | |
38 virtual ~ICallable() | |
39 { | |
40 } | |
41 | |
42 virtual void Apply(const IMessage& message) = 0; | |
43 | |
44 virtual MessageType GetMessageType() const = 0; | |
45 virtual IObserver* GetObserver() const = 0; | |
46 }; | |
47 | |
48 template <typename TMessage> | |
49 class MessageHandler: public ICallable | |
50 { | |
51 }; | |
52 | |
53 | |
54 template <typename TObserver, | |
55 typename TMessage> | |
56 class Callable : public MessageHandler<TMessage> | |
57 { | |
58 private: | |
59 typedef void (TObserver::* MemberFunction) (const TMessage&); | |
60 | |
61 TObserver& observer_; | |
62 MemberFunction function_; | |
63 | |
64 public: | |
65 Callable(TObserver& observer, | |
66 MemberFunction function) : | |
67 observer_(observer), | |
68 function_(function) | |
69 { | |
70 } | |
71 | |
72 void ApplyInternal(const TMessage& message) | |
73 { | |
74 (observer_.*function_) (message); | |
75 } | |
76 | |
77 virtual void Apply(const IMessage& message) | |
78 { | |
79 ApplyInternal(dynamic_cast<const TMessage&>(message)); | |
80 } | |
81 | |
82 virtual MessageType GetMessageType() const | |
83 { | |
84 return static_cast<MessageType>(TMessage::Type); | |
85 } | |
86 | |
87 virtual IObserver* GetObserver() const | |
88 { | |
89 return &observer_; | |
90 } | |
91 }; | |
92 } |