Mercurial > hg > orthanc-stone
annotate Framework/Toolbox/IWebService.h @ 299:3897f9f28cfa am-callable-and-promise
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| author | am@osimis.io |
|---|---|
| date | Fri, 14 Sep 2018 16:44:01 +0200 |
| parents | 8c8da145fefa |
| children | b4abaeb783b1 |
| rev | line source |
|---|---|
| 57 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
| 57 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
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16 * |
| 57 | 17 * You should have received a copy of the GNU Affero General Public License |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #pragma once | |
| 23 | |
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24 #include <Core/IDynamicObject.h> |
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25 #include "../../Framework/Messages/IObserver.h" |
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26 #include "../../Framework/Messages/ICallable.h" |
| 57 | 27 #include <string> |
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28 #include <map> |
| 252 | 29 #include <Core/Logging.h> |
| 57 | 30 |
| 31 namespace OrthancStone | |
| 32 { | |
| 288 | 33 // The IWebService performs HTTP requests. |
| 34 // Since applications can run in native or WASM environment and, since | |
| 35 // in a WASM environment, the WebService is asynchronous, the IWebservice | |
| 36 // also implements an asynchronous interface: you must schedule a request | |
| 37 // and you'll be notified when the response/error is ready. | |
| 269 | 38 class IWebService |
| 39 { | |
| 40 protected: | |
| 41 MessageBroker& broker_; | |
| 42 public: | |
| 43 typedef std::map<std::string, std::string> Headers; | |
| 257 | 44 |
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45 struct NewHttpRequestSuccessMessage: public BaseMessage<MessageType_HttpRequestSuccess> |
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46 { |
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47 const std::string& Uri; |
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48 const void* Answer; |
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49 size_t AnswerSize; |
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50 Orthanc::IDynamicObject* Payload; |
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51 NewHttpRequestSuccessMessage(const std::string& uri, |
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52 const void* answer, |
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53 size_t answerSize, |
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54 Orthanc::IDynamicObject* payload) |
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55 : BaseMessage(), |
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56 Uri(uri), |
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57 Answer(answer), |
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58 AnswerSize(answerSize), |
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59 Payload(payload) |
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60 {} |
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61 }; |
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62 |
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63 struct NewHttpRequestErrorMessage: public BaseMessage<MessageType_HttpRequestError> |
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64 { |
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65 const std::string& Uri; |
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66 Orthanc::IDynamicObject* Payload; |
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67 NewHttpRequestErrorMessage(const std::string& uri, |
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68 Orthanc::IDynamicObject* payload) |
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69 : BaseMessage(), |
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70 Uri(uri), |
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71 Payload(payload) |
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72 {} |
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73 }; |
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74 |
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75 |
| 269 | 76 class ICallback : public IObserver |
| 77 { | |
| 78 public: | |
| 79 struct HttpRequestSuccessMessage: public IMessage | |
| 80 { | |
| 81 const std::string& Uri; | |
| 82 const void* Answer; | |
| 83 size_t AnswerSize; | |
| 84 Orthanc::IDynamicObject* Payload; | |
| 85 HttpRequestSuccessMessage(const std::string& uri, | |
| 86 const void* answer, | |
| 87 size_t answerSize, | |
| 88 Orthanc::IDynamicObject* payload) | |
| 89 : IMessage(MessageType_HttpRequestSuccess), | |
| 90 Uri(uri), | |
| 91 Answer(answer), | |
| 92 AnswerSize(answerSize), | |
| 93 Payload(payload) | |
| 94 {} | |
| 95 }; | |
| 57 | 96 |
| 269 | 97 struct HttpRequestErrorMessage: public IMessage |
| 98 { | |
| 99 const std::string& Uri; | |
| 100 Orthanc::IDynamicObject* Payload; | |
| 101 HttpRequestErrorMessage(const std::string& uri, | |
| 102 Orthanc::IDynamicObject* payload) | |
| 103 : IMessage(MessageType_HttpRequestError), | |
| 104 Uri(uri), | |
| 105 Payload(payload) | |
| 106 {} | |
| 107 }; | |
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108 |
| 269 | 109 ICallback(MessageBroker& broker) |
| 110 : IObserver(broker) | |
| 111 { | |
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112 // DeclareHandledMessage(MessageType_HttpRequestError); |
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113 // DeclareHandledMessage(MessageType_HttpRequestSuccess); |
| 269 | 114 } |
| 115 virtual ~ICallback() | |
| 116 { | |
| 117 } | |
| 57 | 118 |
| 269 | 119 virtual void HandleMessage(IObservable& from, const IMessage& message) |
| 120 { | |
| 121 switch(message.GetType()) | |
| 122 { | |
| 123 case MessageType_HttpRequestError: | |
| 124 { | |
| 125 const HttpRequestErrorMessage& msg = dynamic_cast<const HttpRequestErrorMessage&>(message); | |
| 126 OnHttpRequestError(msg.Uri, | |
| 127 msg.Payload); | |
| 128 }; break; | |
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129 |
| 269 | 130 case MessageType_HttpRequestSuccess: |
| 131 { | |
| 132 const HttpRequestSuccessMessage& msg = dynamic_cast<const HttpRequestSuccessMessage&>(message); | |
| 133 OnHttpRequestSuccess(msg.Uri, | |
| 134 msg.Answer, | |
| 135 msg.AnswerSize, | |
| 136 msg.Payload); | |
| 137 }; break; | |
| 138 default: | |
| 139 VLOG("unhandled message type" << message.GetType()); | |
| 140 } | |
| 141 } | |
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142 |
| 269 | 143 virtual void OnHttpRequestError(const std::string& uri, |
| 144 Orthanc::IDynamicObject* payload) = 0; | |
| 57 | 145 |
| 269 | 146 virtual void OnHttpRequestSuccess(const std::string& uri, |
| 147 const void* answer, | |
| 148 size_t answerSize, | |
| 149 Orthanc::IDynamicObject* payload) = 0; | |
| 150 }; | |
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151 |
| 269 | 152 IWebService(MessageBroker& broker) |
| 153 : broker_(broker) | |
| 154 {} | |
| 57 | 155 |
| 269 | 156 virtual ~IWebService() |
| 157 { | |
| 158 } | |
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159 |
| 269 | 160 virtual void ScheduleGetRequest(ICallback& callback, |
| 161 const std::string& uri, | |
| 162 const Headers& headers, | |
| 163 Orthanc::IDynamicObject* payload) = 0; | |
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164 |
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165 virtual void GetAsync(const std::string& uri, |
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166 const Headers& headers, |
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167 Orthanc::IDynamicObject* payload, |
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168 MessageHandler<IWebService::NewHttpRequestSuccessMessage>* successCallback, |
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169 MessageHandler<IWebService::NewHttpRequestErrorMessage>* failureCallback) = 0; |
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170 |
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171 |
| 269 | 172 virtual void SchedulePostRequest(ICallback& callback, |
| 173 const std::string& uri, | |
| 174 const Headers& headers, | |
| 175 const std::string& body, | |
| 176 Orthanc::IDynamicObject* payload) = 0; | |
| 177 }; | |
| 57 | 178 } |