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comparison Framework/Messages/MessageForwarder.h @ 300:b4abaeb783b1 am-callable-and-promise

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messaging refactoring almost complete: works fine in native
author am@osimis.io
date Tue, 18 Sep 2018 15:23:21 +0200
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children 4a79193ffb58
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299:3897f9f28cfa 300:b4abaeb783b1
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 "ICallable.h"
25 #include "IObservable.h"
26 #include "IObserver.h"
27
28 #include <boost/noncopyable.hpp>
29
30 namespace OrthancStone {
31
32
33 template<typename TMessage>
34 class MessageForwarder : public IObserver, public Callable<MessageForwarder<TMessage>, TMessage>
35 {
36 IObservable& observable_;
37 public:
38 MessageForwarder(MessageBroker& broker,
39 IObservable& observable // the object that will emit the forwarded message
40 )
41 : IObserver(broker),
42 Callable<MessageForwarder<TMessage>, TMessage>(*this, &MessageForwarder::ForwardMessage),
43 observable_(observable)
44 {
45 }
46
47 protected:
48 void ForwardMessage(const TMessage& message)
49 {
50 observable_.EmitMessage(message);
51 }
52 };
53 }