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annotate Resources/Orthanc/Core/DicomFormat/DicomInstanceHasher.h @ 200:03afbee0cc7b

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integration of Orthanc core into Stone
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 23 Mar 2018 11:04:03 +0100
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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) 2017-2018 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 General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #pragma once
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35
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36 #include "DicomMap.h"
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37
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38 namespace Orthanc
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39 {
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40 /**
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41 * This class implements the hashing mechanism that is used to
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42 * convert DICOM unique identifiers to Orthanc identifiers. Any
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43 * Orthanc identifier for a DICOM resource corresponds to the SHA-1
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44 * hash of the DICOM identifiers.
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45
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46 * \note SHA-1 hash is used because it is less sensitive to
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47 * collision attacks than MD5. <a
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48 * href="http://en.wikipedia.org/wiki/SHA-256#Comparison_of_SHA_functions">[Reference]</a>
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49 **/
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50 class DicomInstanceHasher
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51 {
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52 private:
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53 std::string patientId_;
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54 std::string studyUid_;
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55 std::string seriesUid_;
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56 std::string instanceUid_;
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57
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58 std::string patientHash_;
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59 std::string studyHash_;
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60 std::string seriesHash_;
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61 std::string instanceHash_;
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62
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63 void Setup(const std::string& patientId,
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64 const std::string& studyUid,
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65 const std::string& seriesUid,
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66 const std::string& instanceUid);
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67
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68 public:
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69 DicomInstanceHasher(const DicomMap& instance);
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70
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71 DicomInstanceHasher(const std::string& patientId,
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72 const std::string& studyUid,
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73 const std::string& seriesUid,
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74 const std::string& instanceUid)
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75 {
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76 Setup(patientId, studyUid, seriesUid, instanceUid);
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77 }
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78
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79 const std::string& GetPatientId() const
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80 {
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81 return patientId_;
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82 }
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83
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84 const std::string& GetStudyUid() const
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85 {
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86 return studyUid_;
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87 }
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88
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89 const std::string& GetSeriesUid() const
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90 {
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91 return seriesUid_;
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92 }
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93
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94 const std::string& GetInstanceUid() const
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95 {
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96 return instanceUid_;
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97 }
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98
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99 const std::string& HashPatient();
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100
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101 const std::string& HashStudy();
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102
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103 const std::string& HashSeries();
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104
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105 const std::string& HashInstance();
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106 };
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107 }