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1 /**
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2 * Stone of Orthanc
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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) 2017-2018 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 Affero 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 * Affero 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 Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #pragma once
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23
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24 #include <boost/shared_ptr.hpp>
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25 #include <json/json.h>
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26
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27 #include "IWebService.h"
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28 #include "../Messages/IObservable.h"
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29
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30
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31 namespace OrthancStone
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32 {
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33 class OrthancApiClient:
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34 public IObservable
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35 {
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36 protected:
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37 class BaseRequest;
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38 class GetJsonRequest;
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39
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40 struct InternalGetJsonResponseReadyMessage;
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41 struct InternalGetJsonResponseErrorMessage;
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42
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43 public:
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44 struct GetJsonResponseReadyMessage : public IMessage
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45 {
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46 Json::Value response_;
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47 std::string uri_;
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48
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49 GetJsonResponseReadyMessage(MessageType messageType,
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50 const std::string& uri,
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51 const Json::Value& response)
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52 : IMessage(messageType),
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53 uri_(uri),
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54 response_(response)
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55 {
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56 }
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57 };
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58
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59 public:
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60
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61 enum Mode
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62 {
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63 Mode_GetJson
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64 };
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65
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66 protected:
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67 IWebService& orthanc_;
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68 class WebCallback;
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69 boost::shared_ptr<WebCallback> webCallback_; // This is a PImpl pattern
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70 std::set<BaseRequest*> requestsInProgress_;
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71
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72 // int ScheduleGetJsonRequest(const std::string& uri);
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73
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74 void ReleaseRequest(BaseRequest* request);
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75
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76 public:
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77 OrthancApiClient(MessageBroker& broker,
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78 IWebService& orthanc);
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79 virtual ~OrthancApiClient() {}
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80
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81 // schedule a GET request expecting a JSON request.
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82 // once the response is ready, it will emit a OrthancApiClient::GetJsonResponseReadyMessage message whose messageType is specified in the call
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83 void ScheduleGetJsonRequest(IObserver& responseObserver, const std::string& uri, MessageType messageToEmitWhenResponseReady);
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84
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85 void ScheduleGetStudyIds(IObserver& responseObserver) {ScheduleGetJsonRequest(responseObserver, "/studies", MessageType_OrthancApi_GetStudyIds_Ready);}
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86 void ScheduleGetStudy(IObserver& responseObserver, const std::string& studyId) {ScheduleGetJsonRequest(responseObserver, "/studies/" + studyId, MessageType_OrthancApi_GetStudy_Ready);}
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87 void ScheduleGetSeries(IObserver& responseObserver, const std::string& seriesId) {ScheduleGetJsonRequest(responseObserver, "/series/" + seriesId, MessageType_OrthancApi_GetSeries_Ready);}
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88
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89 };
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90 }
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