Mercurial > hg > orthanc

comparison Core/DicomFormat/DicomInstanceHasher.cpp @ 178:5739b4d10a4b

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 09 Nov 2012 11:13:29 +0100
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children 78e28d0098d9
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177:81b6f3013738 178:5739b4d10a4b
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
4 * 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 #include "DicomInstanceHasher.h"
33
34 #include "../OrthancException.h"
35 #include "../Toolbox.h"
36
37 namespace Orthanc
38 {
39 DicomInstanceHasher::DicomInstanceHasher(const DicomMap& instance)
40 {
41 patientId_ = instance.GetValue(DICOM_TAG_PATIENT_ID).AsString();
42 instanceUid_ = instance.GetValue(DICOM_TAG_SOP_INSTANCE_UID).AsString();
43 seriesUid_ = instance.GetValue(DICOM_TAG_SERIES_INSTANCE_UID).AsString();
44 studyUid_ = instance.GetValue(DICOM_TAG_STUDY_INSTANCE_UID).AsString();
45
46 if (patientId_.size() == 0 ||
47 instanceUid_.size() == 0 ||
48 seriesUid_.size() == 0 ||
49 studyUid_.size() == 0)
50 {
51 throw OrthancException(ErrorCode_BadFileFormat);
52 }
53 }
54
55 std::string DicomInstanceHasher::HashPatient() const
56 {
57 std::string s;
58 Toolbox::ComputeSHA1(s, patientId_);
59 return s;
60 }
61
62 std::string DicomInstanceHasher::HashStudy() const
63 {
64 std::string s;
65 Toolbox::ComputeSHA1(s, patientId_ + "|" + studyUid_);
66 return s;
67 }
68
69 std::string DicomInstanceHasher::HashSeries() const
70 {
71 std::string s;
72 Toolbox::ComputeSHA1(s, patientId_ + "|" + studyUid_ + "|" + seriesUid_);
73 return s;
74 }
75
76 std::string DicomInstanceHasher::HashInstance() const
77 {
78 std::string s;
79 Toolbox::ComputeSHA1(s, patientId_ + "|" + studyUid_ + "|" + seriesUid_ + "|" + instanceUid_);
80 return s;
81 }
82 }