Mercurial > hg > orthanc-webviewer
annotate Plugin/ViewerPrefetchPolicy.cpp @ 321:705be6d59d9b default tip
fix build on tumbleweed
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Tue, 11 Jun 2024 12:57:30 +0200 |
parents | 553fa466835a |
children |
rev | line source |
---|---|
0 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
122 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
0 | 4 * Department, University Hospital of Liege, Belgium |
320
553fa466835a
updated copyright, as Orthanc Team now replaces Osimis
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
316
diff
changeset
|
5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
553fa466835a
updated copyright, as Orthanc Team now replaces Osimis
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
316
diff
changeset
|
6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
314
0a1ad7492050
update year to 2024
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
303
diff
changeset
|
7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
0 | 8 * |
9 * This program is free software: you can redistribute it and/or | |
10 * modify it under the terms of the GNU Affero General Public License | |
11 * as published by the Free Software Foundation, either version 3 of | |
12 * the License, or (at your option) any later version. | |
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 | |
17 * Affero General Public License for more details. | |
18 * | |
19 * You should have received a copy of the GNU Affero General Public License | |
20 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
21 **/ | |
22 | |
23 | |
24 #include "ViewerPrefetchPolicy.h" | |
25 | |
26 #include "ViewerToolbox.h" | |
27 #include "Cache/CacheScheduler.h" | |
28 | |
292
aadbffcee805
remove calls to deprecated classes of JsonCpp
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
226
diff
changeset
|
29 #include <Toolbox.h> |
0 | 30 |
31 | |
32 static const Json::Value::ArrayIndex PREFETCH_FORWARD = 10; | |
33 static const Json::Value::ArrayIndex PREFETCH_BACKWARD = 3; | |
34 | |
35 | |
36 namespace OrthancPlugins | |
37 { | |
38 void ViewerPrefetchPolicy::ApplySeries(std::list<CacheIndex>& toPrefetch, | |
39 CacheScheduler& cache, | |
40 const std::string& series, | |
41 const std::string& content) | |
42 { | |
43 Json::Value json; | |
292
aadbffcee805
remove calls to deprecated classes of JsonCpp
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
226
diff
changeset
|
44 if (!Orthanc::Toolbox::ReadJson(json, content) || |
99
46ec13a1177c
use of ordered-slices
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
45 !json.isMember("Slices")) |
0 | 46 { |
47 return; | |
48 } | |
49 | |
99
46ec13a1177c
use of ordered-slices
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
50 const Json::Value& instances = json["Slices"]; |
0 | 51 if (instances.type() != Json::arrayValue) |
52 { | |
53 return; | |
54 } | |
55 | |
56 for (Json::Value::ArrayIndex i = 0; | |
57 i < instances.size() && i < PREFETCH_FORWARD; | |
58 i++) | |
59 { | |
60 std::string item = "jpeg95-" + instances[i].asString(); | |
61 toPrefetch.push_back(CacheIndex(CacheBundle_DecodedImage, item)); | |
62 } | |
63 } | |
64 | |
65 | |
66 void ViewerPrefetchPolicy::ApplyInstance(std::list<CacheIndex>& toPrefetch, | |
67 CacheScheduler& cache, | |
68 const std::string& path) | |
69 { | |
70 size_t separator = path.find('-'); | |
71 if (separator == std::string::npos) | |
72 { | |
73 return; | |
74 } | |
75 | |
76 std::string compression = path.substr(0, separator + 1); | |
101 | 77 std::string instanceAndFrame = path.substr(separator + 1); |
0 | 78 |
101 | 79 std::string instanceId = instanceAndFrame.substr(0, instanceAndFrame.find('_')); |
99
46ec13a1177c
use of ordered-slices
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
80 |
0 | 81 Json::Value instance; |
82 if (!GetJsonFromOrthanc(instance, context_, "/instances/" + instanceId) || | |
83 !instance.isMember("ParentSeries")) | |
84 { | |
85 return; | |
86 } | |
87 | |
88 std::string tmp; | |
89 if (!cache.Access(tmp, CacheBundle_SeriesInformation, instance["ParentSeries"].asString())) | |
90 { | |
91 return; | |
92 } | |
93 | |
94 Json::Value series; | |
292
aadbffcee805
remove calls to deprecated classes of JsonCpp
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
226
diff
changeset
|
95 if (!Orthanc::Toolbox::ReadJson(series, tmp) || |
99
46ec13a1177c
use of ordered-slices
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
96 !series.isMember("Slices")) |
0 | 97 { |
98 return; | |
99 } | |
100 | |
99
46ec13a1177c
use of ordered-slices
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
101 const Json::Value& instances = series["Slices"]; |
101 | 102 |
0 | 103 if (instances.type() != Json::arrayValue) |
104 { | |
105 return; | |
106 } | |
107 | |
108 Json::Value::ArrayIndex position = 0; | |
109 while (position < instances.size()) | |
110 { | |
101 | 111 if (instances[position] == instanceAndFrame) |
0 | 112 { |
113 break; | |
114 } | |
115 | |
116 position++; | |
117 } | |
118 | |
119 if (position == instances.size()) | |
120 { | |
121 return; | |
122 } | |
123 | |
124 for (Json::Value::ArrayIndex i = position; | |
125 i < instances.size() && i < position + PREFETCH_FORWARD; | |
126 i++) | |
127 { | |
128 std::string item = compression + instances[i].asString(); | |
129 toPrefetch.push_back(CacheIndex(CacheBundle_DecodedImage, item)); | |
130 } | |
131 | |
132 for (Json::Value::ArrayIndex i = position; | |
133 i >= 0 && i > position - PREFETCH_BACKWARD; ) | |
134 { | |
135 i--; | |
136 std::string item = compression + instances[i].asString(); | |
137 toPrefetch.push_back(CacheIndex(CacheBundle_DecodedImage, item)); | |
138 } | |
139 } | |
140 | |
141 | |
142 void ViewerPrefetchPolicy::Apply(std::list<CacheIndex>& toPrefetch, | |
143 CacheScheduler& cache, | |
144 const CacheIndex& accessed, | |
145 const std::string& content) | |
146 { | |
147 switch (accessed.GetBundle()) | |
148 { | |
149 case CacheBundle_SeriesInformation: | |
150 ApplySeries(toPrefetch, cache, accessed.GetItem(), content); | |
151 return; | |
152 | |
153 case CacheBundle_DecodedImage: | |
154 ApplyInstance(toPrefetch, cache, accessed.GetItem()); | |
155 return; | |
156 | |
157 default: | |
158 return; | |
159 } | |
160 } | |
161 } | |
162 |