Mercurial > hg > orthanc-stone
annotate Framework/Messages/IObservable.cpp @ 1100:08cc0d47aa94 broker
exception handling in IObservable::EmitMessage()
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 25 Oct 2019 18:06:30 +0200 |
parents | 17660df24c36 |
children | 5e164c629923 |
rev | line source |
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403 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
439 | 5 * Copyright (C) 2017-2019 Osimis S.A., Belgium |
403 | 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 #include "IObservable.h" | |
23 | |
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24 #include "../StoneException.h" |
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25 |
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26 #include <Core/Logging.h> |
403 | 27 |
28 #include <cassert> | |
29 | |
30 namespace OrthancStone | |
31 { | |
32 IObservable::~IObservable() | |
33 { | |
34 // delete all callables (this will also unregister them from the broker) | |
35 for (Callables::const_iterator it = callables_.begin(); | |
36 it != callables_.end(); ++it) | |
37 { | |
38 for (std::set<ICallable*>::const_iterator | |
39 it2 = it->second.begin(); it2 != it->second.end(); ++it2) | |
40 { | |
41 delete *it2; | |
42 } | |
43 } | |
44 } | |
45 | |
46 | |
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47 void IObservable::RegisterCallable(ICallable* callable) |
403 | 48 { |
49 if (callable == NULL) | |
50 { | |
51 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
52 } | |
53 | |
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54 const MessageIdentifier& id = callable->GetMessageIdentifier(); |
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55 callables_[id].insert(callable); |
403 | 56 } |
57 | |
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58 void IObservable::EmitMessageInternal(const IObserver* receiver, |
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59 const IMessage& message) |
403 | 60 { |
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61 LOG(TRACE) << "IObservable::EmitMessageInternal receiver = " |
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62 << std::hex << receiver << std::dec; |
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63 Callables::const_iterator found = callables_.find(message.GetIdentifier()); |
403 | 64 |
65 if (found != callables_.end()) | |
66 { | |
67 for (std::set<ICallable*>::const_iterator | |
68 it = found->second.begin(); it != found->second.end(); ++it) | |
69 { | |
70 assert(*it != NULL); | |
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71 |
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72 boost::shared_ptr<IObserver> observer((*it)->GetObserver().lock()); |
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73 |
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74 if (observer) |
403 | 75 { |
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76 if (receiver == NULL || // Are we broadcasting? |
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77 observer.get() == receiver) // Not broadcasting, but this is the receiver |
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78 { |
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79 try |
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80 { |
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81 (*it)->Apply(message); |
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82 } |
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83 catch (Orthanc::OrthancException& e) |
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84 { |
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85 LOG(ERROR) << "Exception on callable: " << e.What(); |
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86 } |
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87 catch (StoneException& e) |
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88 { |
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89 LOG(ERROR) << "Exception on callable: " << e.What(); |
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90 } |
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91 catch (...) |
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92 { |
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93 LOG(ERROR) << "Native exception on callable"; |
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94 } |
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95 } |
403 | 96 } |
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97 else |
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98 { |
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99 // TODO => Remove "it" from the list of callables => This |
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100 // allows to suppress the need for "Unregister()" |
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101 } |
403 | 102 } |
103 } | |
104 } | |
105 | |
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106 |
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107 void IObservable::BroadcastMessage(const IMessage& message) |
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108 { |
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109 EmitMessageInternal(NULL, message); |
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110 } |
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111 |
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112 |
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113 void IObservable::EmitMessage(boost::weak_ptr<IObserver> observer, |
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114 const IMessage& message) |
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115 { |
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116 LOG(TRACE) << "IObservable::EmitMessage observer = " |
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117 << std::hex << &observer << std::dec; |
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119 boost::shared_ptr<IObserver> lock(observer.lock()); | |
120 if (lock) | |
121 { | |
122 EmitMessageInternal(lock.get(), message); | |
123 } | |
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124 } |
403 | 125 } |