Mercurial > hg > orthanc-stone
annotate Framework/Deprecated/Loaders/LoaderStateMachine.h @ 1310:9bea7e15b519 broker
- first pass at changes to cope with the refactoring of the loading system
- global loader-related data accessible through ILoadersContext::ILock
- many changes in legacy loaders (CT, RTSTRUCT, DOSE) + loader cache
- NOT FINISHED! there are shared_from_this calls in ctors! this will crash!
| author | Benjamin Golinvaux <bgo@osimis.io> |
|---|---|
| date | Mon, 09 Mar 2020 14:53:22 +0100 |
| parents | 7ec8fea061b9 |
| children | 9b126de2cde2 |
| 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 OrthancStone |
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37 { |
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38 class ILoadersContext; |
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39 } |
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40 |
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41 namespace Deprecated |
| 815 | 42 { |
| 43 /** | |
| 44 This class is supplied with Oracle commands and will schedule up to | |
| 45 simultaneousDownloads_ of them at the same time, then will schedule the | |
| 46 rest once slots become available. It is used, a.o., by the | |
| 47 OrtancMultiframeVolumeLoader class. | |
| 48 */ | |
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49 class LoaderStateMachine : public OrthancStone::ObserverBase<LoaderStateMachine> |
| 815 | 50 { |
| 51 protected: | |
| 52 class State : public Orthanc::IDynamicObject | |
| 53 { | |
| 54 private: | |
| 55 LoaderStateMachine& that_; | |
| 56 | |
| 57 public: | |
| 58 State(LoaderStateMachine& that) : | |
| 59 that_(that) | |
| 60 { | |
| 61 } | |
| 62 | |
| 63 State(const State& currentState) : | |
| 64 that_(currentState.that_) | |
| 65 { | |
| 66 } | |
| 67 | |
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68 void Schedule(OrthancStone::OracleCommandBase* command) const |
| 815 | 69 { |
| 70 that_.Schedule(command); | |
| 71 } | |
| 72 | |
| 73 template <typename T> | |
| 74 T& GetLoader() const | |
| 75 { | |
| 76 return dynamic_cast<T&>(that_); | |
| 77 } | |
| 78 | |
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79 virtual void Handle(const OrthancStone::OrthancRestApiCommand::SuccessMessage& message); |
| 815 | 80 |
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81 virtual void Handle(const OrthancStone::GetOrthancImageCommand::SuccessMessage& message); |
| 815 | 82 |
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83 virtual void Handle(const OrthancStone::GetOrthancWebViewerJpegCommand::SuccessMessage& message); |
| 815 | 84 }; |
| 85 | |
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86 void Schedule(OrthancStone::OracleCommandBase* command); |
| 815 | 87 |
| 88 void Start(); | |
| 89 | |
| 90 private: | |
| 91 void Step(); | |
| 92 | |
| 93 void Clear(); | |
| 94 | |
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95 void HandleExceptionMessage(const OrthancStone::OracleCommandExceptionMessage& message); |
| 815 | 96 |
| 97 template <typename T> | |
| 98 void HandleSuccessMessage(const T& message); | |
| 99 | |
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parents:
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100 typedef std::list<OrthancStone::IOracleCommand*> PendingCommands; |
| 815 | 101 |
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9bea7e15b519
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Benjamin Golinvaux <bgo@osimis.io>
parents:
1279
diff
changeset
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102 OrthancStone::ILoadersContext& loadersContext_; |
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9bea7e15b519
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Benjamin Golinvaux <bgo@osimis.io>
parents:
1279
diff
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103 bool active_; |
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9bea7e15b519
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Benjamin Golinvaux <bgo@osimis.io>
parents:
1279
diff
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104 unsigned int simultaneousDownloads_; |
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9bea7e15b519
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Benjamin Golinvaux <bgo@osimis.io>
parents:
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diff
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105 PendingCommands pendingCommands_; |
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9bea7e15b519
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parents:
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diff
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106 unsigned int activeCommands_; |
| 815 | 107 |
| 108 public: | |
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parents:
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diff
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109 LoaderStateMachine(OrthancStone::ILoadersContext& loadersContext); |
| 815 | 110 |
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111 virtual ~LoaderStateMachine(); |
| 815 | 112 |
| 113 bool IsActive() const | |
| 114 { | |
| 115 return active_; | |
| 116 } | |
| 117 | |
| 118 void SetSimultaneousDownloads(unsigned int count); | |
| 119 }; | |
| 120 } |