annotate Framework/Loaders/BasicFetchingStrategy.h @ 1443:60e30d73e2aa loader-injection-feature

ISliceProcessor is now public
author Benjamin Golinvaux <bgo@osimis.io>
date Tue, 26 May 2020 11:56:16 +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) 2017-2020 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
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24 #include "IFetchingItemsSorter.h"
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25 #include "IFetchingStrategy.h"
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27 #include <Core/Compatibility.h>
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28
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29 #include <memory>
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30
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31 namespace OrthancStone
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32 {
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33 class BasicFetchingStrategy : public IFetchingStrategy
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34 {
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35 private:
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36 class ContentItem
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37 {
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38 private:
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39 unsigned int item_;
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40 unsigned int quality_;
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41
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42 public:
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43 ContentItem(unsigned int item,
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44 unsigned int quality) :
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45 item_(item),
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46 quality_(quality)
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47 {
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48 }
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49
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50 unsigned int GetItem() const
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51 {
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52 return item_;
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53 }
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54
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55 unsigned int GetQuality() const
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56 {
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57 return quality_;
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58 }
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59 };
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60
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61 std::unique_ptr<IFetchingItemsSorter> sorter_;
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62 std::vector<unsigned int> nextQuality_;
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63 unsigned int maxQuality_;
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64 std::vector<ContentItem> content_;
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65 size_t position_;
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66 unsigned int blockSize_;
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67
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68 void Schedule(unsigned int item,
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69 unsigned int quality);
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70
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71 public:
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72 BasicFetchingStrategy(IFetchingItemsSorter* sorter, // Takes ownership
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73 unsigned int maxQuality);
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74
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75 virtual unsigned int GetItemsCount() const
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76 {
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77 return sorter_->GetItemsCount();
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78 }
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79
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80 virtual unsigned int GetMaxQuality() const
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81 {
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82 return maxQuality_;
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83 }
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84
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85 // WARNING - This parameters is only considered during the next
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86 // call to SetCurrent().
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87 void SetBlockSize(unsigned int size);
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88
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89 virtual bool GetNext(unsigned int& item,
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90 unsigned int& quality);
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91
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92 virtual void SetCurrent(unsigned int item);
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93
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94 virtual void RecycleFurthest(unsigned int& item);
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95 };
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96 }