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annotate Framework/Toolbox/ParsedDicomCache.cpp @ 1299:c38c89684d83 broker

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replacing std::auto_ptr by std::unique_ptr
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 02 Mar 2020 17:21:24 +0100
parents 0ca50d275b9a
children
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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 #include "ParsedDicomCache.h"
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23
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24 namespace OrthancStone
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25 {
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26 class ParsedDicomCache::Item : public Orthanc::ICacheable
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27 {
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28 private:
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29 std::unique_ptr<Orthanc::ParsedDicomFile> dicom_;
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30 size_t fileSize_;
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31 bool hasPixelData_;
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32
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33 public:
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34 Item(Orthanc::ParsedDicomFile* dicom,
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35 size_t fileSize,
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36 bool hasPixelData) :
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37 dicom_(dicom),
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38 fileSize_(fileSize),
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39 hasPixelData_(hasPixelData)
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40 {
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41 if (dicom == NULL)
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42 {
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43 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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44 }
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45 }
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46
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47 virtual size_t GetMemoryUsage() const
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48 {
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49 return fileSize_;
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50 }
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51
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52 Orthanc::ParsedDicomFile& GetDicom() const
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53 {
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54 assert(dicom_.get() != NULL);
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55 return *dicom_;
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56 }
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57
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58 bool HasPixelData() const
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59 {
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60 return hasPixelData_;
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61 }
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62 };
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63
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64
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65 std::string ParsedDicomCache::GetIndex(unsigned int bucket,
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66 const std::string& bucketKey)
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67 {
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68 return boost::lexical_cast<std::string>(bucket) + "|" + bucketKey;
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69 }
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70
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71
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72 void ParsedDicomCache::Acquire(unsigned int bucket,
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73 const std::string& bucketKey,
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74 Orthanc::ParsedDicomFile* dicom,
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75 size_t fileSize,
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76 bool hasPixelData)
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77 {
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78 LOG(TRACE) << "new item stored in cache: bucket " << bucket << ", key " << bucketKey;
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79 cache_.Acquire(GetIndex(bucket, bucketKey), new Item(dicom, fileSize, hasPixelData));
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80 }
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81
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82
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83 ParsedDicomCache::Reader::Reader(ParsedDicomCache& cache,
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84 unsigned int bucket,
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85 const std::string& bucketKey) :
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86 /**
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87 * The "DcmFileFormat" object cannot be accessed from multiple
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88 * threads, even if using only getters. An unique lock (mutex) is
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89 * mandatory.
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90 **/
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91 accessor_(cache.cache_, GetIndex(bucket, bucketKey), true /* unique */)
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92 {
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93 if (accessor_.IsValid())
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94 {
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95 LOG(TRACE) << "accessing item within cache: bucket " << bucket << ", key " << bucketKey;
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96 item_ = &dynamic_cast<Item&>(accessor_.GetValue());
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97 }
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98 else
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99 {
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100 LOG(TRACE) << "missing item within cache: bucket " << bucket << ", key " << bucketKey;
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101 item_ = NULL;
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102 }
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103 }
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104
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105
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106 bool ParsedDicomCache::Reader::HasPixelData() const
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107 {
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108 if (item_ == NULL)
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109 {
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110 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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111 }
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112 else
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113 {
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114 return item_->HasPixelData();
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115 }
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116 }
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117
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118
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119 Orthanc::ParsedDicomFile& ParsedDicomCache::Reader::GetDicom() const
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120 {
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121 if (item_ == NULL)
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122 {
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123 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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124 }
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125 else
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126 {
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127 return item_->GetDicom();
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128 }
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129 }
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130
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131
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132 size_t ParsedDicomCache::Reader::GetFileSize() const
1124
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133 {
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134 if (item_ == NULL)
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135 {
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136 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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137 }
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138 else
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139 {
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140 return item_->GetMemoryUsage();
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141 }
1116
a08699daf78b ParsedDicomFileCache
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142 }
a08699daf78b ParsedDicomFileCache
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143 }