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annotate OrthancStone/Sources/Toolbox/ParsedDicomCache.cpp @ 1598:8563ea5d8ae4

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relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 26 Oct 2020 20:49:28 +0100
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children 59f95b9ea858
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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 Lesser 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 * Lesser 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 Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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22
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23 #include "ParsedDicomCache.h"
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24
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25 namespace OrthancStone
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26 {
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27 class ParsedDicomCache::Item : public Orthanc::ICacheable
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28 {
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29 private:
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30 std::unique_ptr<Orthanc::ParsedDicomFile> dicom_;
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31 size_t fileSize_;
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32 bool hasPixelData_;
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33
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34 public:
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35 Item(Orthanc::ParsedDicomFile* dicom,
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36 size_t fileSize,
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37 bool hasPixelData) :
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38 dicom_(dicom),
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39 fileSize_(fileSize),
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40 hasPixelData_(hasPixelData)
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41 {
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42 if (dicom == NULL)
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43 {
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44 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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45 }
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46 }
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47
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48 virtual size_t GetMemoryUsage() const ORTHANC_OVERRIDE
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49 {
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50 return fileSize_;
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51 }
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52
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53 Orthanc::ParsedDicomFile& GetDicom() const
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54 {
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55 assert(dicom_.get() != NULL);
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56 return *dicom_;
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57 }
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58
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59 bool HasPixelData() const
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60 {
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61 return hasPixelData_;
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62 }
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63 };
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64
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65
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66 std::string ParsedDicomCache::GetIndex(unsigned int bucket,
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67 const std::string& bucketKey)
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68 {
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69 return boost::lexical_cast<std::string>(bucket) + "|" + bucketKey;
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70 }
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71
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72
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73 void ParsedDicomCache::Acquire(unsigned int bucket,
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74 const std::string& bucketKey,
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75 Orthanc::ParsedDicomFile* dicom,
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76 size_t fileSize,
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77 bool hasPixelData)
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78 {
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79 LOG(TRACE) << "new item stored in cache: bucket " << bucket << ", key " << bucketKey;
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80 cache_.Acquire(GetIndex(bucket, bucketKey), new Item(dicom, fileSize, hasPixelData));
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81 }
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82
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83
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84 ParsedDicomCache::Reader::Reader(ParsedDicomCache& cache,
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85 unsigned int bucket,
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86 const std::string& bucketKey) :
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87 /**
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88 * The "DcmFileFormat" object cannot be accessed from multiple
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89 * threads, even if using only getters. An unique lock (mutex) is
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90 * mandatory.
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91 **/
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92 accessor_(cache.cache_, GetIndex(bucket, bucketKey), true /* unique */)
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93 {
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94 if (accessor_.IsValid())
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95 {
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96 LOG(TRACE) << "accessing item within cache: bucket " << bucket << ", key " << bucketKey;
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97 item_ = &dynamic_cast<Item&>(accessor_.GetValue());
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98 }
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99 else
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100 {
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101 LOG(TRACE) << "missing item within cache: bucket " << bucket << ", key " << bucketKey;
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102 item_ = NULL;
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103 }
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104 }
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105
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106
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107 bool ParsedDicomCache::Reader::HasPixelData() const
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108 {
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109 if (item_ == NULL)
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110 {
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111 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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112 }
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113 else
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114 {
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115 return item_->HasPixelData();
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116 }
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117 }
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118
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119
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120 Orthanc::ParsedDicomFile& ParsedDicomCache::Reader::GetDicom() const
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121 {
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122 if (item_ == NULL)
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123 {
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124 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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125 }
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126 else
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127 {
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128 return item_->GetDicom();
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129 }
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130 }
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131
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132
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133 size_t ParsedDicomCache::Reader::GetFileSize() const
1124
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134 {
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135 if (item_ == NULL)
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136 {
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137 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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138 }
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139 else
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140 {
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141 return item_->GetMemoryUsage();
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142 }
1116
a08699daf78b ParsedDicomFileCache
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143 }
a08699daf78b ParsedDicomFileCache
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144 }