Mercurial > hg > orthanc-stone
annotate Framework/Messages/IObservable.h @ 343:712acc87fa2e am-2
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 22 Oct 2018 14:20:39 +0200 |
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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 |
267 | 24 #include <set> |
25 #include <assert.h> | |
26 #include <algorithm> | |
27 #include <iostream> | |
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28 #include <map> |
267 | 29 |
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30 |
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31 #include "MessageBroker.h" |
267 | 32 #include "MessageType.h" |
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33 #include "ICallable.h" |
267 | 34 #include "IObserver.h" |
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35 #include "MessageForwarder.h" |
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36 |
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37 namespace OrthancStone { |
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38 |
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39 |
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40 class IObservable : public boost::noncopyable |
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41 { |
258 | 42 protected: |
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43 MessageBroker& broker_; |
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44 |
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45 typedef std::map<int, std::set<ICallable*> > Callables; |
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46 Callables callables_; |
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47 |
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48 typedef std::set<IMessageForwarder*> Forwarders; |
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49 Forwarders forwarders_; |
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50 |
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51 public: |
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52 |
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53 IObservable(MessageBroker& broker) |
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54 : broker_(broker) |
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55 { |
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56 } |
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57 virtual ~IObservable() |
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58 { |
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59 // delete all callables (this will also unregister them from the broker) |
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60 for (Callables::const_iterator it = callables_.begin(); |
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61 it != callables_.end(); ++it) |
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62 { |
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63 for (std::set<ICallable*>::const_iterator |
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64 it2 = it->second.begin(); it2 != it->second.end(); ++it2) |
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65 { |
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66 delete *it2; |
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67 } |
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68 } |
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69 |
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70 // 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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71 for (Forwarders::iterator it = forwarders_.begin(); |
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72 it != forwarders_.end(); ++it) |
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73 { |
317 | 74 IMessageForwarder* fw = *it; |
75 broker_.Unregister(dynamic_cast<IObserver&>(*fw)); | |
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76 } |
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77 } |
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78 |
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79 void RegisterObserverCallback(ICallable* callable) |
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80 { |
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81 MessageType messageType = callable->GetMessageType(); |
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82 |
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83 callables_[messageType].insert(callable); |
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84 } |
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85 |
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86 void EmitMessage(const IMessage& message) |
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87 { |
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88 Callables::const_iterator found = callables_.find(message.GetType()); |
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89 |
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90 if (found != callables_.end()) |
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91 { |
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92 for (std::set<ICallable*>::const_iterator |
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93 it = found->second.begin(); it != found->second.end(); ++it) |
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94 { |
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95 if (broker_.IsActive((*it)->GetObserver())) |
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96 { |
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97 (*it)->Apply(message); |
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98 } |
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99 } |
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100 } |
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101 } |
267 | 102 |
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103 void RegisterForwarder(IMessageForwarder* forwarder) |
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104 { |
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105 forwarders_.insert(forwarder); |
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106 } |
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107 |
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108 }; |
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109 |
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110 } |