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comparison Resources/Orthanc/Plugins/Samples/Common/DicomDatasetReader.cpp @ 31:9aace933cb64

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sharing code with the Orthanc core
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 16 Dec 2016 15:41:20 +0100
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children 517c46f527cd
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30:1099a148f7e5 31:9aace933cb64
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 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #include "DicomDatasetReader.h"
34
35 #include "OrthancPluginException.h"
36
37 #include <boost/lexical_cast.hpp>
38
39 namespace OrthancPlugins
40 {
41 // This function is copied-pasted from "../../../Core/Toolbox.cpp",
42 // in order to avoid the dependency of plugins against the Orthanc core
43 static std::string StripSpaces(const std::string& source)
44 {
45 size_t first = 0;
46
47 while (first < source.length() &&
48 isspace(source[first]))
49 {
50 first++;
51 }
52
53 if (first == source.length())
54 {
55 // String containing only spaces
56 return "";
57 }
58
59 size_t last = source.length();
60 while (last > first &&
61 isspace(source[last - 1]))
62 {
63 last--;
64 }
65
66 assert(first <= last);
67 return source.substr(first, last - first);
68 }
69
70
71 DicomDatasetReader::DicomDatasetReader(IDicomDataset* dataset) : // takes ownership
72 dataset_(dataset)
73 {
74 if (dataset == NULL)
75 {
76 ORTHANC_PLUGINS_THROW_EXCEPTION(ParameterOutOfRange);
77 }
78 }
79
80
81 std::string DicomDatasetReader::GetMandatoryStringValue(const DicomPath& path) const
82 {
83 std::string s;
84 if (dataset_->GetStringValue(s, path))
85 {
86 return s;
87 }
88 else
89 {
90 ORTHANC_PLUGINS_THROW_EXCEPTION(InexistentTag);
91 }
92 }
93
94
95 int DicomDatasetReader::GetIntegerValue(const DicomPath& path)
96 {
97 try
98 {
99 std::string s = StripSpaces(GetMandatoryStringValue(path));
100 return boost::lexical_cast<int>(s);
101 }
102 catch (boost::bad_lexical_cast&)
103 {
104 ORTHANC_PLUGINS_THROW_EXCEPTION(BadFileFormat);
105 }
106 }
107
108
109 unsigned int DicomDatasetReader::GetUnsignedIntegerValue(const DicomPath& path)
110 {
111 int value = GetIntegerValue(path);
112
113 if (value >= 0)
114 {
115 return static_cast<unsigned int>(value);
116 }
117 else
118 {
119 ORTHANC_PLUGINS_THROW_EXCEPTION(ParameterOutOfRange);
120 }
121 }
122 }