annotate OrthancFramework/Sources/RestApi/RestApiHierarchy.h @ 4399:80fd140b12ba

New command-line option: "--openapi" to write the OpenAPI documentation of the REST API to a file
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 23 Dec 2020 12:21:03 +0100
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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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22
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23 #pragma once
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24
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25 #include "RestApiGetCall.h"
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26 #include "RestApiPostCall.h"
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27 #include "RestApiPutCall.h"
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28 #include "RestApiDeleteCall.h"
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29
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30 #include <set>
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31
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32 namespace Orthanc
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33 {
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34 class ORTHANC_PUBLIC RestApiHierarchy : public boost::noncopyable
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35 {
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36 public:
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37 class ORTHANC_PUBLIC Resource : public boost::noncopyable
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38 {
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39 private:
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40 RestApiGetCall::Handler getHandler_;
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41 RestApiPostCall::Handler postHandler_;
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42 RestApiPutCall::Handler putHandler_;
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43 RestApiDeleteCall::Handler deleteHandler_;
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44
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45 public:
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46 Resource();
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47
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48 bool HasMethod(HttpMethod method) const;
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49
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50 void Register(RestApiGetCall::Handler handler);
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51
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52 void Register(RestApiPutCall::Handler handler);
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53
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54 void Register(RestApiPostCall::Handler handler);
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55
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56 void Register(RestApiDeleteCall::Handler handler);
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57
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58 bool IsEmpty() const;
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59
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60 bool Handle(RestApiGetCall& call) const;
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61
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62 bool Handle(RestApiPutCall& call) const;
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63
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64 bool Handle(RestApiPostCall& call) const;
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65
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66 bool Handle(RestApiDeleteCall& call) const;
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67 };
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69
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70 class IVisitor : public boost::noncopyable
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71 {
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72 public:
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73 virtual ~IVisitor()
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74 {
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75 }
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76
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77 virtual bool Visit(const Resource& resource,
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78 const UriComponents& uri,
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79 bool hasTrailing,
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80 // The two arguments below are empty if using "ExploreAllResources()"
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81 const HttpToolbox::Arguments& uriComponents,
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82 const UriComponents& trailing) = 0;
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83 };
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84
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85
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86 private:
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87 typedef std::map<std::string, RestApiHierarchy*> Children;
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88
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89 Resource handlers_;
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90 Children children_;
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91 Children wildcardChildren_;
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92 Resource handlersWithTrailing_;
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93
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94 static RestApiHierarchy& AddChild(Children& children,
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95 const std::string& name);
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96
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97 static void DeleteChildren(Children& children);
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98
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99 template <typename Handler>
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100 void RegisterInternal(const RestApiPath& path,
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101 Handler handler,
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102 size_t level);
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103
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104 bool CanGenerateDirectory() const;
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105
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106 bool LookupResource(HttpToolbox::Arguments& components,
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107 const UriComponents& uri,
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108 IVisitor& visitor,
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109 size_t level);
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110
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111 bool GetDirectory(Json::Value& result,
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112 const UriComponents& uri,
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113 size_t level);
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114
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115 public:
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116 ~RestApiHierarchy();
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117
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118 void Register(const std::string& uri,
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119 RestApiGetCall::Handler handler);
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120
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121 void Register(const std::string& uri,
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122 RestApiPutCall::Handler handler);
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123
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124 void Register(const std::string& uri,
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125 RestApiPostCall::Handler handler);
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126
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127 void Register(const std::string& uri,
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128 RestApiDeleteCall::Handler handler);
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129
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130 void CreateSiteMap(Json::Value& target) const;
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131
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132 bool GetDirectory(Json::Value& result,
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133 const UriComponents& uri);
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134
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135 bool LookupResource(const UriComponents& uri,
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136 IVisitor& visitor);
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137
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138 void GetAcceptedMethods(std::set<HttpMethod>& methods,
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139 const UriComponents& uri);
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140
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141 void ExploreAllResources(IVisitor& visitor,
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142 const UriComponents& path) const;
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143 };
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144 }