Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Toolbox/ParsedDicomCache.cpp @ 1807:634ff8993f6a
Stone Web viewer: Patient birth date is now displayed in the overlays
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 20 May 2021 17:17:56 +0200 |
parents | 9ac2a65d4172 |
children | 3889ae96d2e9 |
rev | line source |
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1116 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
1116 | 6 * |
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 |
1116 | 9 * as published by the Free Software Foundation, either version 3 of |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
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/>. |
1116 | 20 **/ |
21 | |
22 | |
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23 #include "ParsedDicomCache.h" |
1116 | 24 |
1624 | 25 #include <Logging.h> |
26 | |
27 #include <cassert> | |
28 | |
29 | |
1116 | 30 namespace OrthancStone |
31 { | |
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32 class ParsedDicomCache::Item : public Orthanc::ICacheable |
1116 | 33 { |
34 private: | |
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35 std::unique_ptr<Orthanc::ParsedDicomFile> dicom_; |
1571 | 36 size_t fileSize_; |
37 bool hasPixelData_; | |
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38 |
1116 | 39 public: |
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40 Item(Orthanc::ParsedDicomFile* dicom, |
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41 size_t fileSize, |
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42 bool hasPixelData) : |
1116 | 43 dicom_(dicom), |
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44 fileSize_(fileSize), |
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45 hasPixelData_(hasPixelData) |
1116 | 46 { |
47 if (dicom == NULL) | |
48 { | |
49 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
50 } | |
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51 } |
1116 | 52 |
1571 | 53 virtual size_t GetMemoryUsage() const ORTHANC_OVERRIDE |
1116 | 54 { |
55 return fileSize_; | |
56 } | |
57 | |
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58 Orthanc::ParsedDicomFile& GetDicom() const |
1116 | 59 { |
60 assert(dicom_.get() != NULL); | |
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61 return *dicom_; |
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62 } |
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63 |
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64 bool HasPixelData() const |
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65 { |
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66 return hasPixelData_; |
1116 | 67 } |
68 }; | |
69 | |
70 | |
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71 std::string ParsedDicomCache::GetIndex(unsigned int bucket, |
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72 const std::string& bucketKey) |
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73 { |
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74 return boost::lexical_cast<std::string>(bucket) + "|" + bucketKey; |
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75 } |
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76 |
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77 |
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78 void ParsedDicomCache::Acquire(unsigned int bucket, |
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79 const std::string& bucketKey, |
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80 Orthanc::ParsedDicomFile* dicom, |
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81 size_t fileSize, |
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82 bool hasPixelData) |
1116 | 83 { |
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84 LOG(TRACE) << "new item stored in cache: bucket " << bucket << ", key " << bucketKey; |
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85 |
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86 if (lowCacheSizeWarning_ < fileSize && |
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87 cache_.GetMaximumSize() > 0 && |
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88 fileSize >= cache_.GetMaximumSize()) |
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89 { |
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90 lowCacheSizeWarning_ = fileSize; |
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91 LOG(WARNING) << "The DICOM cache size should be larger: Storing a DICOM instance of " |
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92 << (fileSize / (1024 * 1024)) << "MB, whereas the cache size is only " |
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93 << (cache_.GetMaximumSize() / (1024 * 1024)) << "MB wide"; |
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94 } |
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95 |
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96 cache_.Acquire(GetIndex(bucket, bucketKey), new Item(dicom, fileSize, hasPixelData)); |
1116 | 97 } |
98 | |
99 | |
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100 ParsedDicomCache::Reader::Reader(ParsedDicomCache& cache, |
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101 unsigned int bucket, |
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102 const std::string& bucketKey) : |
1140 | 103 /** |
104 * The "DcmFileFormat" object cannot be accessed from multiple | |
105 * threads, even if using only getters. An unique lock (mutex) is | |
106 * mandatory. | |
107 **/ | |
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108 accessor_(cache.cache_, GetIndex(bucket, bucketKey), true /* unique */) |
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109 { |
1140 | 110 if (accessor_.IsValid()) |
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111 { |
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112 LOG(TRACE) << "accessing item within cache: bucket " << bucket << ", key " << bucketKey; |
1140 | 113 item_ = &dynamic_cast<Item&>(accessor_.GetValue()); |
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114 } |
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115 else |
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116 { |
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117 LOG(TRACE) << "missing item within cache: bucket " << bucket << ", key " << bucketKey; |
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118 item_ = NULL; |
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119 } |
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120 } |
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121 |
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122 |
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123 bool ParsedDicomCache::Reader::HasPixelData() const |
1116 | 124 { |
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125 if (item_ == NULL) |
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126 { |
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127 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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128 } |
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129 else |
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130 { |
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131 return item_->HasPixelData(); |
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132 } |
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133 } |
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134 |
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135 |
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136 Orthanc::ParsedDicomFile& ParsedDicomCache::Reader::GetDicom() const |
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137 { |
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138 if (item_ == NULL) |
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139 { |
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140 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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141 } |
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142 else |
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143 { |
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144 return item_->GetDicom(); |
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145 } |
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146 } |
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147 |
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148 |
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149 size_t ParsedDicomCache::Reader::GetFileSize() const |
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150 { |
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151 if (item_ == NULL) |
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152 { |
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153 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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154 } |
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155 else |
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156 { |
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157 return item_->GetMemoryUsage(); |
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158 } |
1116 | 159 } |
160 } |