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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #pragma once
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34
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35 #include "../ServerEnumerations.h"
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36 #include "../IDatabaseWrapper.h"
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37
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38 #include <vector>
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39 #include <boost/noncopyable.hpp>
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40
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41 namespace Orthanc
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42 {
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43 /**
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44 * Primitive for wildcard matching, as defined in DICOM:
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45 * http://dicom.nema.org/dicom/2013/output/chtml/part04/sect_C.2.html#sect_C.2.2.2.4
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46 *
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47 * "Any occurrence of an "*" or a "?", then "*" shall match any
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48 * sequence of characters (including a zero length value) and "?"
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49 * shall match any single character. This matching is case
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50 * sensitive, except for Attributes with an PN Value
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51 * Representation (e.g., Patient Name (0010,0010))."
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52 *
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53 * Pay attention to the fact that "*" (resp. "?") generally
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54 * corresponds to "%" (resp. "_") in primitive LIKE of SQL. The
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55 * values "%", "_", "\" should in the user request should
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56 * respectively be escaped as "\%", "\_" and "\\".
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57 *
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58 * This matching must be case sensitive: The special case of PN VR
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59 * is taken into consideration by normalizing the query string in
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60 * method "NormalizeIdentifier()".
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61 **/
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62
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63 class LookupIdentifierQuery : public boost::noncopyable
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64 {
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65 private:
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66 struct Constraint
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67 {
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68 DicomTag tag_;
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69 IdentifierConstraintType type_;
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70 std::string value_;
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71
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72 Constraint(const DicomTag& tag,
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73 IdentifierConstraintType type,
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74 const std::string& value) :
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75 tag_(tag),
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76 type_(type),
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77 value_(value)
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78 {
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79 }
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80 };
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81
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82 typedef std::vector<Constraint*> Constraints;
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83
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84 ResourceType level_;
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85 Constraints constraints_;
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86
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87 void CheckIndex(size_t index) const;
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88
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89 static std::string NormalizeIdentifier(const std::string& value);
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90
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91 public:
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92 LookupIdentifierQuery(ResourceType level) : level_(level)
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93 {
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94 }
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95
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96 ~LookupIdentifierQuery();
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97
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98 bool IsIdentifier(const DicomTag& tag) const;
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99
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100 void AddConstraint(DicomTag tag,
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101 IdentifierConstraintType type,
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102 const std::string& value);
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103
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104 ResourceType GetLevel() const
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105 {
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106 return level_;
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107 }
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108
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109 size_t GetSize() const
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110 {
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111 return constraints_.size();
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112 }
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113
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114 const DicomTag& GetTag(size_t index) const;
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115
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116 IdentifierConstraintType GetType(size_t index) const;
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117
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118 const std::string& GetValue(size_t index) const;
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119
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120 static void StoreIdentifiers(IDatabaseWrapper& database,
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121 int64_t resource,
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122 ResourceType level,
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123 const DicomMap& map);
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124
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125 // The database must be locked
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126 void Apply(std::list<std::string>& result,
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127 IDatabaseWrapper& database);
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128 };
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129 }
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