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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU Affero General Public License
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8 * as published by the Free Software Foundation, either version 3 of
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9 * the License, or (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * Affero General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Affero General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 **/
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19
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20
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21 #pragma once
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22
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23 #include "../../Orthanc/SQLite/Connection.h"
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24 #include "../../Orthanc/FileStorage/FilesystemStorage.h"
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25
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26 namespace OrthancPlugins
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27 {
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28 class CacheManager : public boost::noncopyable
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29 {
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30 private:
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31 struct PImpl;
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32 boost::shared_ptr<PImpl> pimpl_;
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33
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34 class Bundle;
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35 class BundleQuota;
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36
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37 typedef std::map<int, Bundle> Bundles;
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38 typedef std::map<int, BundleQuota> BundleQuotas;
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39
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40 const BundleQuota& GetBundleQuota(int bundleIndex) const;
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41
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42 Bundle GetBundle(int bundleIndex) const;
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43
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44 void MakeRoom(Bundle& bundle,
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45 std::list<std::string>& toRemove,
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46 int bundleIndex,
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47 const BundleQuota& quota);
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48
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49 void EnsureQuota(int bundleIndex,
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50 const BundleQuota& quota);
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51
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52 void ReadBundleStatistics();
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53
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54 void Open();
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55
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56 bool LocateInCache(std::string& uuid,
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57 uint64_t& size,
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58 int bundle,
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59 const std::string& item);
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60
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61 void SanityCheck(); // Only for debug
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62
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63
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64 public:
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65 CacheManager(Orthanc::SQLite::Connection& db,
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66 Orthanc::FilesystemStorage& storage);
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67
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68 void SetSanityCheckEnabled(bool enabled);
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69
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70 void Clear();
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71
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72 void Clear(int bundle);
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73
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74 void SetBundleQuota(int bundle,
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75 uint32_t maxCount,
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76 uint64_t maxSpace);
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77
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78 void SetDefaultQuota(uint32_t maxCount,
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79 uint64_t maxSpace);
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80
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81 bool IsCached(int bundle,
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82 const std::string& item);
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83
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84 bool Access(std::string& content,
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85 int bundle,
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86 const std::string& item);
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87
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88 void Invalidate(int bundle,
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89 const std::string& item);
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90
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91 void Store(int bundle,
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92 const std::string& item,
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93 const std::string& content);
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94
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95 };
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96 }
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