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comparison Resources/Orthanc/Plugins/Samples/Common/DicomDatasetReader.cpp @ 200:03afbee0cc7b

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integration of Orthanc core into Stone
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 23 Mar 2018 11:04:03 +0100
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199:dabe9982fca3 200:03afbee0cc7b
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) 2017-2018 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 "DicomDatasetReader.h"
35
36 #include "OrthancPluginException.h"
37
38 #include <boost/lexical_cast.hpp>
39
40 namespace OrthancPlugins
41 {
42 // This function is copied-pasted from "../../../Core/Toolbox.cpp",
43 // in order to avoid the dependency of plugins against the Orthanc core
44 static std::string StripSpaces(const std::string& source)
45 {
46 size_t first = 0;
47
48 while (first < source.length() &&
49 isspace(source[first]))
50 {
51 first++;
52 }
53
54 if (first == source.length())
55 {
56 // String containing only spaces
57 return "";
58 }
59
60 size_t last = source.length();
61 while (last > first &&
62 isspace(source[last - 1]))
63 {
64 last--;
65 }
66
67 assert(first <= last);
68 return source.substr(first, last - first);
69 }
70
71
72 DicomDatasetReader::DicomDatasetReader(const IDicomDataset& dataset) :
73 dataset_(dataset)
74 {
75 }
76
77
78 std::string DicomDatasetReader::GetStringValue(const DicomPath& path,
79 const std::string& defaultValue) const
80 {
81 std::string s;
82 if (dataset_.GetStringValue(s, path))
83 {
84 return s;
85 }
86 else
87 {
88 return defaultValue;
89 }
90 }
91
92
93 std::string DicomDatasetReader::GetMandatoryStringValue(const DicomPath& path) const
94 {
95 std::string s;
96 if (dataset_.GetStringValue(s, path))
97 {
98 return s;
99 }
100 else
101 {
102 ORTHANC_PLUGINS_THROW_EXCEPTION(InexistentTag);
103 }
104 }
105
106
107 template <typename T>
108 static bool GetValueInternal(T& target,
109 const IDicomDataset& dataset,
110 const DicomPath& path)
111 {
112 try
113 {
114 std::string s;
115
116 if (dataset.GetStringValue(s, path))
117 {
118 target = boost::lexical_cast<T>(StripSpaces(s));
119 return true;
120 }
121 else
122 {
123 return false;
124 }
125 }
126 catch (boost::bad_lexical_cast&)
127 {
128 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
129 }
130 }
131
132
133 bool DicomDatasetReader::GetIntegerValue(int& target,
134 const DicomPath& path) const
135 {
136 return GetValueInternal<int>(target, dataset_, path);
137 }
138
139
140 bool DicomDatasetReader::GetUnsignedIntegerValue(unsigned int& target,
141 const DicomPath& path) const
142 {
143 int value;
144
145 if (!GetIntegerValue(value, path))
146 {
147 return false;
148 }
149 else if (value >= 0)
150 {
151 target = static_cast<unsigned int>(value);
152 return true;
153 }
154 else
155 {
156 ORTHANC_PLUGINS_THROW_EXCEPTION(ParameterOutOfRange);
157 }
158 }
159
160
161 bool DicomDatasetReader::GetFloatValue(float& target,
162 const DicomPath& path) const
163 {
164 return GetValueInternal<float>(target, dataset_, path);
165 }
166
167
168 bool DicomDatasetReader::GetDoubleValue(double& target,
169 const DicomPath& path) const
170 {
171 return GetValueInternal<double>(target, dataset_, path);
172 }
173 }