Mercurial > hg > orthanc-stone
annotate Framework/Deprecated/Loaders/LoaderStateMachine.h @ 1279:7ec8fea061b9 broker
integration mainline->broker
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 04 Feb 2020 15:20:08 +0100 |
| parents | Framework/Loaders/LoaderStateMachine.h@2d8ab34c8c91 Framework/Loaders/LoaderStateMachine.h@0ca50d275b9a |
| children | 9bea7e15b519 |
| rev | line source |
|---|---|
| 815 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
| 815 | 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 | |
|
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24 #include "../../Messages/IObservable.h" |
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25 #include "../../Messages/ObserverBase.h" |
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26 #include "../../Oracle/GetOrthancImageCommand.h" |
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27 #include "../../Oracle/GetOrthancWebViewerJpegCommand.h" |
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28 #include "../../Oracle/IOracle.h" |
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29 #include "../../Oracle/OracleCommandExceptionMessage.h" |
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30 #include "../../Oracle/OrthancRestApiCommand.h" |
| 815 | 31 |
| 32 #include <Core/IDynamicObject.h> | |
| 33 | |
| 34 #include <list> | |
| 35 | |
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36 namespace Deprecated |
| 815 | 37 { |
| 38 /** | |
| 39 This class is supplied with Oracle commands and will schedule up to | |
| 40 simultaneousDownloads_ of them at the same time, then will schedule the | |
| 41 rest once slots become available. It is used, a.o., by the | |
| 42 OrtancMultiframeVolumeLoader class. | |
| 43 */ | |
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44 class LoaderStateMachine : public OrthancStone::ObserverBase<LoaderStateMachine> |
| 815 | 45 { |
| 46 protected: | |
| 47 class State : public Orthanc::IDynamicObject | |
| 48 { | |
| 49 private: | |
| 50 LoaderStateMachine& that_; | |
| 51 | |
| 52 public: | |
| 53 State(LoaderStateMachine& that) : | |
| 54 that_(that) | |
| 55 { | |
| 56 } | |
| 57 | |
| 58 State(const State& currentState) : | |
| 59 that_(currentState.that_) | |
| 60 { | |
| 61 } | |
| 62 | |
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63 void Schedule(OrthancStone::OracleCommandBase* command) const |
| 815 | 64 { |
| 65 that_.Schedule(command); | |
| 66 } | |
| 67 | |
| 68 template <typename T> | |
| 69 T& GetLoader() const | |
| 70 { | |
| 71 return dynamic_cast<T&>(that_); | |
| 72 } | |
| 73 | |
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74 virtual void Handle(const OrthancStone::OrthancRestApiCommand::SuccessMessage& message); |
| 815 | 75 |
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76 virtual void Handle(const OrthancStone::GetOrthancImageCommand::SuccessMessage& message); |
| 815 | 77 |
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78 virtual void Handle(const OrthancStone::GetOrthancWebViewerJpegCommand::SuccessMessage& message); |
| 815 | 79 }; |
| 80 | |
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81 void Schedule(OrthancStone::OracleCommandBase* command); |
| 815 | 82 |
| 83 void Start(); | |
| 84 | |
| 85 private: | |
| 86 void Step(); | |
| 87 | |
| 88 void Clear(); | |
| 89 | |
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90 void HandleExceptionMessage(const OrthancStone::OracleCommandExceptionMessage& message); |
| 815 | 91 |
| 92 template <typename T> | |
| 93 void HandleSuccessMessage(const T& message); | |
| 94 | |
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95 typedef std::list<OrthancStone::IOracleCommand*> PendingCommands; |
| 815 | 96 |
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97 OrthancStone::IOracle& oracle_; |
| 815 | 98 bool active_; |
| 99 unsigned int simultaneousDownloads_; | |
| 100 PendingCommands pendingCommands_; | |
| 101 unsigned int activeCommands_; | |
| 102 | |
| 103 public: | |
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104 LoaderStateMachine(OrthancStone::IOracle& oracle, |
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105 OrthancStone::IObservable& oracleObservable); |
| 815 | 106 |
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107 virtual ~LoaderStateMachine(); |
| 815 | 108 |
| 109 bool IsActive() const | |
| 110 { | |
| 111 return active_; | |
| 112 } | |
| 113 | |
| 114 void SetSimultaneousDownloads(unsigned int count); | |
| 115 }; | |
| 116 } |