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annotate OrthancFramework/Sources/EnumerationDictionary.h @ 4119:bf7b9edf6b81 framework-lgpl

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re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 19:17:56 +0200
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #pragma once
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24
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25 #include "OrthancException.h"
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26
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27 #include "Toolbox.h"
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28 #include <boost/lexical_cast.hpp>
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29 #include <string>
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30 #include <map>
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31
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32 namespace Orthanc
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33 {
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34 template <typename Enumeration>
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35 class EnumerationDictionary
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36 {
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37 private:
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38 typedef std::map<Enumeration, std::string> EnumerationToString;
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39 typedef std::map<std::string, Enumeration> StringToEnumeration;
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41 EnumerationToString enumerationToString_;
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42 StringToEnumeration stringToEnumeration_;
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43
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44 public:
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45 void Clear()
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46 {
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47 enumerationToString_.clear();
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48 stringToEnumeration_.clear();
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49 }
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50
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51 bool Contains(Enumeration value) const
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52 {
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53 return enumerationToString_.find(value) != enumerationToString_.end();
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54 }
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55
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56 void Add(Enumeration value, const std::string& str)
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57 {
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58 // Check if these values are free
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59 if (enumerationToString_.find(value) != enumerationToString_.end() ||
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60 stringToEnumeration_.find(str) != stringToEnumeration_.end() ||
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61 Toolbox::IsInteger(str) /* Prevent the registration of a number */)
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62 {
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63 throw OrthancException(ErrorCode_BadRequest);
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64 }
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65
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66 // OK, the string is free and is not a number
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67 enumerationToString_[value] = str;
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68 stringToEnumeration_[str] = value;
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69 stringToEnumeration_[boost::lexical_cast<std::string>(static_cast<int>(value))] = value;
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70 }
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71
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72 Enumeration Translate(const std::string& str) const
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73 {
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74 if (Toolbox::IsInteger(str))
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75 {
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76 return static_cast<Enumeration>(boost::lexical_cast<int>(str));
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77 }
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78
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79 typename StringToEnumeration::const_iterator
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80 found = stringToEnumeration_.find(str);
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81
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82 if (found == stringToEnumeration_.end())
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83 {
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84 throw OrthancException(ErrorCode_InexistentItem);
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85 }
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86 else
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87 {
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88 return found->second;
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89 }
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90 }
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92 std::string Translate(Enumeration e) const
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93 {
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94 typename EnumerationToString::const_iterator
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95 found = enumerationToString_.find(e);
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96
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97 if (found == enumerationToString_.end())
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98 {
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99 // No name for this item
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100 return boost::lexical_cast<std::string>(static_cast<int>(e));
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101 }
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102 else
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103 {
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104 return found->second;
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105 }
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106 }
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107 };
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108 }