Mercurial > hg > orthanc-stone
annotate Framework/Messages/IObservable.h @ 397:1d9dd542adfe
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sat, 10 Nov 2018 09:33:50 +0100 |
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1 /** |
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2 * Stone of Orthanc |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
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6 * |
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7 * This program is free software: you can redistribute it and/or |
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8 * modify it under the terms of the GNU Affero General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Affero General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 |
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22 #pragma once |
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23 |
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24 #include "../StoneEnumerations.h" |
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25 #include "ICallable.h" |
267 | 26 #include "IObserver.h" |
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27 #include "MessageBroker.h" |
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28 #include "MessageForwarder.h" |
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29 |
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30 #include <set> |
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31 #include <map> |
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32 |
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33 namespace OrthancStone |
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34 { |
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35 class IObservable : public boost::noncopyable |
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36 { |
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37 private: |
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38 typedef std::map<int, std::set<ICallable*> > Callables; |
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39 typedef std::set<IMessageForwarder*> Forwarders; |
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40 |
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41 MessageBroker& broker_; |
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42 Callables callables_; |
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43 Forwarders forwarders_; |
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44 |
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45 public: |
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46 IObservable(MessageBroker& broker) : |
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47 broker_(broker) |
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48 { |
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49 } |
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50 |
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51 virtual ~IObservable() |
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52 { |
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53 // delete all callables (this will also unregister them from the broker) |
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54 for (Callables::const_iterator it = callables_.begin(); |
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55 it != callables_.end(); ++it) |
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56 { |
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57 for (std::set<ICallable*>::const_iterator |
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58 it2 = it->second.begin(); it2 != it->second.end(); ++it2) |
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59 { |
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60 delete *it2; |
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61 } |
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62 } |
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63 |
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64 // unregister the forwarders but don't delete them (they'll be deleted by the observable they are observing as any other callable) |
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65 for (Forwarders::iterator it = forwarders_.begin(); |
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66 it != forwarders_.end(); ++it) |
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67 { |
317 | 68 IMessageForwarder* fw = *it; |
69 broker_.Unregister(dynamic_cast<IObserver&>(*fw)); | |
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70 } |
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71 } |
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72 |
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73 void RegisterObserverCallback(ICallable* callable) |
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74 { |
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75 MessageType messageType = callable->GetMessageType(); |
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76 |
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77 callables_[messageType].insert(callable); |
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78 } |
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79 |
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80 void EmitMessage(const IMessage& message) |
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81 { |
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82 Callables::const_iterator found = callables_.find(message.GetType()); |
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83 |
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84 if (found != callables_.end()) |
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85 { |
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86 for (std::set<ICallable*>::const_iterator |
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87 it = found->second.begin(); it != found->second.end(); ++it) |
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88 { |
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89 if (broker_.IsActive((*it)->GetObserver())) |
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90 { |
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91 (*it)->Apply(message); |
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92 } |
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93 } |
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94 } |
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95 } |
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97 void RegisterForwarder(IMessageForwarder* forwarder) |
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98 { |
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99 forwarders_.insert(forwarder); |
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100 } |
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101 |
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102 MessageBroker& GetBroker() const |
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103 { |
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104 return broker_; |
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105 } |
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106 }; |
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107 } |