Mercurial > hg > orthanc
annotate OrthancFramework/Sources/FileStorage/MemoryStorageArea.cpp @ 5853:4d932683049d get-scu tip
very first implementation of C-Get SCU
author | Alain Mazy <am@orthanc.team> |
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date | Tue, 29 Oct 2024 17:25:49 +0100 |
parents | f7adfb22e20e |
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rev | line source |
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2653 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
2653 | 8 * |
9 * This program is free software: you can redistribute it and/or | |
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10 * modify it under the terms of the GNU Lesser General Public License |
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11 * as published by the Free Software Foundation, either version 3 of |
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12 * the License, or (at your option) any later version. |
2653 | 13 * |
14 * This program is distributed in the hope that it will be useful, but | |
15 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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17 * Lesser General Public License for more details. |
2653 | 18 * |
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19 * You should have received a copy of the GNU Lesser General Public |
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20 * License along with this program. If not, see |
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21 * <http://www.gnu.org/licenses/>. |
2653 | 22 **/ |
23 | |
24 | |
25 #include "../PrecompiledHeaders.h" | |
26 #include "MemoryStorageArea.h" | |
27 | |
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28 #include "../Logging.h" |
2653 | 29 #include "../OrthancException.h" |
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30 #include "../StringMemoryBuffer.h" |
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31 #include "../Toolbox.h" |
2653 | 32 |
33 namespace Orthanc | |
34 { | |
35 MemoryStorageArea::~MemoryStorageArea() | |
36 { | |
37 for (Content::iterator it = content_.begin(); it != content_.end(); ++it) | |
38 { | |
39 if (it->second != NULL) | |
40 { | |
41 delete it->second; | |
42 } | |
43 } | |
44 } | |
45 | |
46 void MemoryStorageArea::Create(const std::string& uuid, | |
47 const void* content, | |
48 size_t size, | |
49 FileContentType type) | |
50 { | |
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51 LOG(INFO) << "Creating attachment \"" << uuid << "\" of \"" << static_cast<int>(type) |
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52 << "\" type (size: " << Toolbox::GetHumanFileSize(size) << ")"; |
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53 |
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54 Mutex::ScopedLock lock(mutex_); |
2653 | 55 |
56 if (size != 0 && | |
57 content == NULL) | |
58 { | |
59 throw OrthancException(ErrorCode_NullPointer); | |
60 } | |
61 else if (content_.find(uuid) != content_.end()) | |
62 { | |
63 throw OrthancException(ErrorCode_InternalError); | |
64 } | |
65 else | |
66 { | |
67 content_[uuid] = new std::string(reinterpret_cast<const char*>(content), size); | |
68 } | |
69 } | |
70 | |
71 | |
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72 IMemoryBuffer* MemoryStorageArea::Read(const std::string& uuid, |
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73 FileContentType type) |
2653 | 74 { |
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75 LOG(INFO) << "Reading attachment \"" << uuid << "\" of \"" |
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76 << static_cast<int>(type) << "\" content type"; |
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77 |
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78 Mutex::ScopedLock lock(mutex_); |
2653 | 79 |
80 Content::const_iterator found = content_.find(uuid); | |
81 | |
82 if (found == content_.end()) | |
83 { | |
84 throw OrthancException(ErrorCode_InexistentFile); | |
85 } | |
86 else if (found->second == NULL) | |
87 { | |
88 throw OrthancException(ErrorCode_InternalError); | |
89 } | |
90 else | |
91 { | |
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92 return StringMemoryBuffer::CreateFromCopy(*found->second); |
2653 | 93 } |
94 } | |
95 | |
96 | |
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97 IMemoryBuffer* MemoryStorageArea::ReadRange(const std::string& uuid, |
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98 FileContentType type, |
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99 uint64_t start /* inclusive */, |
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100 uint64_t end /* exclusive */) |
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101 { |
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102 LOG(INFO) << "Reading attachment \"" << uuid << "\" of \"" |
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103 << static_cast<int>(type) << "\" content type " |
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104 << "(range from " << start << " to " << end << ")"; |
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105 |
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106 if (start > end) |
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107 { |
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108 throw OrthancException(ErrorCode_BadRange); |
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109 } |
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110 else if (start == end) |
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111 { |
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112 return new StringMemoryBuffer; |
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113 } |
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114 else |
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115 { |
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116 Mutex::ScopedLock lock(mutex_); |
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117 |
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118 Content::const_iterator found = content_.find(uuid); |
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119 |
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120 if (found == content_.end()) |
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121 { |
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122 throw OrthancException(ErrorCode_InexistentFile); |
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123 } |
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124 else if (found->second == NULL) |
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125 { |
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126 throw OrthancException(ErrorCode_InternalError); |
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127 } |
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128 else if (end > found->second->size()) |
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129 { |
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130 throw OrthancException(ErrorCode_BadRange); |
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131 } |
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132 else |
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133 { |
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134 std::string range; |
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135 range.resize(end - start); |
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136 assert(!range.empty()); |
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137 |
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138 memcpy(&range[0], &found->second[start], range.size()); |
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139 |
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140 return StringMemoryBuffer::CreateFromSwap(range); |
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141 } |
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142 } |
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143 } |
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144 |
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145 |
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146 bool MemoryStorageArea::HasReadRange() const |
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147 { |
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148 return true; |
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149 } |
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150 |
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151 |
2653 | 152 void MemoryStorageArea::Remove(const std::string& uuid, |
153 FileContentType type) | |
154 { | |
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155 LOG(INFO) << "Deleting attachment \"" << uuid << "\" of type " << static_cast<int>(type); |
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156 |
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157 Mutex::ScopedLock lock(mutex_); |
2653 | 158 |
159 Content::iterator found = content_.find(uuid); | |
160 | |
161 if (found == content_.end()) | |
162 { | |
163 // Ignore second removal | |
164 } | |
165 else if (found->second == NULL) | |
166 { | |
167 throw OrthancException(ErrorCode_InternalError); | |
168 } | |
169 else | |
170 { | |
171 delete found->second; | |
172 content_.erase(found); | |
173 } | |
174 } | |
175 } |