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comparison OrthancServer/Plugins/Samples/Common/SimplifiedOrthancDataset.cpp @ 4044:d25f4c0fa160 framework

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splitting code into OrthancFramework and OrthancServer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 10 Jun 2020 20:30:34 +0200
parents Plugins/Samples/Common/SimplifiedOrthancDataset.cpp@94f4a18a79cc
children
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4043:6c6239aec462 4044:d25f4c0fa160
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
11 *
12 * In addition, as a special exception, the copyright holders of this
13 * program give permission to link the code of its release with the
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
15 * that use the same license as the "OpenSSL" library), and distribute
16 * the linked executables. You must obey the GNU General Public License
17 * in all respects for all of the code used other than "OpenSSL". If you
18 * modify file(s) with this exception, you may extend this exception to
19 * your version of the file(s), but you are not obligated to do so. If
20 * you do not wish to do so, delete this exception statement from your
21 * version. If you delete this exception statement from all source files
22 * in the program, then also delete it here.
23 *
24 * This program is distributed in the hope that it will be useful, but
25 * WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 * General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 **/
32
33
34 #include "SimplifiedOrthancDataset.h"
35
36 #include "OrthancPluginException.h"
37
38 namespace OrthancPlugins
39 {
40 const Json::Value* SimplifiedOrthancDataset::LookupPath(const DicomPath& path) const
41 {
42 const Json::Value* content = &root_;
43
44 for (unsigned int depth = 0; depth < path.GetPrefixLength(); depth++)
45 {
46 const char* name = path.GetPrefixTag(depth).GetName();
47 if (content->type() != Json::objectValue)
48 {
49 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
50 }
51
52 if (!content->isMember(name))
53 {
54 return NULL;
55 }
56
57 const Json::Value& sequence = (*content) [name];
58 if (sequence.type() != Json::arrayValue)
59 {
60 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
61 }
62
63 size_t index = path.GetPrefixIndex(depth);
64 if (index >= sequence.size())
65 {
66 return NULL;
67 }
68 else
69 {
70 content = &sequence[static_cast<Json::Value::ArrayIndex>(index)];
71 }
72 }
73
74 const char* name = path.GetFinalTag().GetName();
75
76 if (content->type() != Json::objectValue)
77 {
78 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
79 }
80 if (!content->isMember(name))
81 {
82 return NULL;
83 }
84 else
85 {
86 return &((*content) [name]);
87 }
88 }
89
90
91 void SimplifiedOrthancDataset::CheckRoot() const
92 {
93 if (root_.type() != Json::objectValue)
94 {
95 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
96 }
97 }
98
99
100 SimplifiedOrthancDataset::SimplifiedOrthancDataset(IOrthancConnection& orthanc,
101 const std::string& uri)
102 {
103 IOrthancConnection::RestApiGet(root_, orthanc, uri);
104 CheckRoot();
105 }
106
107
108 SimplifiedOrthancDataset::SimplifiedOrthancDataset(const std::string& content)
109 {
110 IOrthancConnection::ParseJson(root_, content);
111 CheckRoot();
112 }
113
114
115 bool SimplifiedOrthancDataset::GetStringValue(std::string& result,
116 const DicomPath& path) const
117 {
118 const Json::Value* value = LookupPath(path);
119
120 if (value == NULL)
121 {
122 return false;
123 }
124 else if (value->type() != Json::stringValue)
125 {
126 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
127 }
128 else
129 {
130 result = value->asString();
131 return true;
132 }
133 }
134
135
136 bool SimplifiedOrthancDataset::GetSequenceSize(size_t& size,
137 const DicomPath& path) const
138 {
139 const Json::Value* sequence = LookupPath(path);
140
141 if (sequence == NULL)
142 {
143 // Inexistent path
144 return false;
145 }
146 else if (sequence->type() != Json::arrayValue)
147 {
148 // Not a sequence
149 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
150 }
151 else
152 {
153 size = sequence->size();
154 return true;
155 }
156 }
157 }