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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 #include "IObservable.h"
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23
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24 #include <Core/OrthancException.h>
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25
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26 #include <cassert>
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27
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28 namespace OrthancStone
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29 {
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30 IObservable::~IObservable()
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31 {
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32 // delete all callables (this will also unregister them from the broker)
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33 for (Callables::const_iterator it = callables_.begin();
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34 it != callables_.end(); ++it)
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35 {
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36 for (std::set<ICallable*>::const_iterator
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37 it2 = it->second.begin(); it2 != it->second.end(); ++it2)
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38 {
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39 delete *it2;
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40 }
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41 }
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42
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43 // unregister the forwarders but don't delete them (they'll be
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44 // deleted by the observable they are observing as any other
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45 // callable)
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46 for (Forwarders::iterator it = forwarders_.begin();
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47 it != forwarders_.end(); ++it)
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48 {
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49 IMessageForwarder* fw = *it;
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50 broker_.Unregister(dynamic_cast<IObserver&>(*fw));
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51 }
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52 }
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53
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54
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55 void IObservable::RegisterObserverCallback(ICallable* callable)
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56 {
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57 if (callable == NULL)
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58 {
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59 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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60 }
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61
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62 MessageType messageType = callable->GetMessageType();
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63
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64 callables_[messageType].insert(callable);
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65 }
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66
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67
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68 void IObservable::EmitMessage(const IMessage& message)
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69 {
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70 Callables::const_iterator found = callables_.find(message.GetType());
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71
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72 if (found != callables_.end())
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73 {
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74 for (std::set<ICallable*>::const_iterator
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75 it = found->second.begin(); it != found->second.end(); ++it)
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76 {
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77 assert(*it != NULL);
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78 if (broker_.IsActive(*(*it)->GetObserver()))
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79 {
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80 (*it)->Apply(message);
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81 }
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82 }
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83 }
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84 }
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85
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86
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87 void IObservable::RegisterForwarder(IMessageForwarder* forwarder)
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88 {
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89 if (forwarder == NULL)
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90 {
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91 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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92 }
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93
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94 forwarders_.insert(forwarder);
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95 }
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96 }
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