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comparison Framework/Toolbox/OrthancDatasets/FullOrthancDataset.cpp @ 1504:d8af188ab545

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 30 Jun 2020 20:35:16 +0200
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1503:553084468225 1504:d8af188ab545
1 /**
2 * Stone of Orthanc
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 Affero General Public License
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
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21
22 #include "FullOrthancDataset.h"
23
24 #include <OrthancException.h>
25
26 #include <stdio.h>
27 #include <cassert>
28
29 namespace OrthancStone
30 {
31 static const Json::Value* AccessTag(const Json::Value& dataset,
32 const Orthanc::DicomTag& tag)
33 {
34 if (dataset.type() != Json::objectValue)
35 {
36 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
37 }
38
39 char name[16];
40 sprintf(name, "%04x,%04x", tag.GetGroup(), tag.GetElement());
41
42 if (!dataset.isMember(name))
43 {
44 return NULL;
45 }
46
47 const Json::Value& value = dataset[name];
48 if (value.type() != Json::objectValue ||
49 !value.isMember("Name") ||
50 !value.isMember("Type") ||
51 !value.isMember("Value") ||
52 value["Name"].type() != Json::stringValue ||
53 value["Type"].type() != Json::stringValue)
54 {
55 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
56 }
57
58 return &value;
59 }
60
61
62 static const Json::Value& GetSequenceContent(const Json::Value& sequence)
63 {
64 assert(sequence.type() == Json::objectValue);
65 assert(sequence.isMember("Type"));
66 assert(sequence.isMember("Value"));
67
68 const Json::Value& value = sequence["Value"];
69
70 if (sequence["Type"].asString() != "Sequence" ||
71 value.type() != Json::arrayValue)
72 {
73 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
74 }
75 else
76 {
77 return value;
78 }
79 }
80
81
82 static bool GetStringInternal(std::string& result,
83 const Json::Value& tag)
84 {
85 assert(tag.type() == Json::objectValue);
86 assert(tag.isMember("Type"));
87 assert(tag.isMember("Value"));
88
89 const Json::Value& value = tag["Value"];
90
91 if (tag["Type"].asString() != "String" ||
92 value.type() != Json::stringValue)
93 {
94 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
95 }
96 else
97 {
98 result = value.asString();
99 return true;
100 }
101 }
102
103
104 const Json::Value* FullOrthancDataset::LookupPath(const DicomPath& path) const
105 {
106 const Json::Value* content = &root_;
107
108 for (unsigned int depth = 0; depth < path.GetPrefixLength(); depth++)
109 {
110 const Json::Value* sequence = AccessTag(*content, path.GetPrefixTag(depth));
111 if (sequence == NULL)
112 {
113 return NULL;
114 }
115
116 const Json::Value& nextContent = GetSequenceContent(*sequence);
117
118 size_t index = path.GetPrefixIndex(depth);
119 if (index >= nextContent.size())
120 {
121 return NULL;
122 }
123 else
124 {
125 content = &nextContent[static_cast<Json::Value::ArrayIndex>(index)];
126 }
127 }
128
129 return AccessTag(*content, path.GetFinalTag());
130 }
131
132
133 void FullOrthancDataset::CheckRoot() const
134 {
135 if (root_.type() != Json::objectValue)
136 {
137 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
138 }
139 }
140
141
142 FullOrthancDataset::FullOrthancDataset(IOrthancConnection& orthanc,
143 const std::string& uri)
144 {
145 IOrthancConnection::RestApiGet(root_, orthanc, uri);
146 CheckRoot();
147 }
148
149
150 FullOrthancDataset::FullOrthancDataset(const std::string& content)
151 {
152 IOrthancConnection::ParseJson(root_, content);
153 CheckRoot();
154 }
155
156
157 FullOrthancDataset::FullOrthancDataset(const void* content,
158 size_t size)
159 {
160 IOrthancConnection::ParseJson(root_, content, size);
161 CheckRoot();
162 }
163
164
165 FullOrthancDataset::FullOrthancDataset(const Json::Value& root) :
166 root_(root)
167 {
168 CheckRoot();
169 }
170
171
172 bool FullOrthancDataset::GetStringValue(std::string& result,
173 const DicomPath& path) const
174 {
175 const Json::Value* value = LookupPath(path);
176
177 if (value == NULL)
178 {
179 return false;
180 }
181 else
182 {
183 return GetStringInternal(result, *value);
184 }
185 }
186
187
188 bool FullOrthancDataset::GetSequenceSize(size_t& size,
189 const DicomPath& path) const
190 {
191 const Json::Value* sequence = LookupPath(path);
192
193 if (sequence == NULL)
194 {
195 return false;
196 }
197 else
198 {
199 size = GetSequenceContent(*sequence).size();
200 return true;
201 }
202 }
203 }