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1 /**
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2 * Transfers accelerator plugin for Orthanc
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3 * Copyright (C) 2018 Osimis, Belgium
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4 *
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5 * This program is free software: you can redistribute it and/or
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6 * modify it under the terms of the GNU Affero General Public License
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7 * as published by the Free Software Foundation, either version 3 of
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8 * the License, or (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful, but
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11 * WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 * Affero General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU Affero General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 **/
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18
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19
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20 #pragma once
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21
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22 #include <Plugins/Samples/Common/OrthancPluginCppWrapper.h>
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23
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24 #include <memory>
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25
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26
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27 namespace OrthancPlugins
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28 {
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29 class StatefulOrthancJob : public OrthancJob
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30 {
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31 protected:
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32 class IState;
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33
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34
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35 class JobInfo : public boost::noncopyable
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36 {
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37 private:
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38 StatefulOrthancJob& job_;
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39 bool updated_;
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40 Json::Value content_;
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41
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42 public:
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43 JobInfo(StatefulOrthancJob& job);
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44
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45 void SetProgress(float progress)
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46 {
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47 job_.UpdateProgress(progress);
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48 }
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49
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50 void SetContent(const std::string& key,
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51 const Json::Value& value);
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52
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53 void Update();
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54 };
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55
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56
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57
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58 class StateUpdate : public boost::noncopyable
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59 {
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60 private:
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61 OrthancPluginJobStepStatus status_;
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62 std::auto_ptr<IState> state_;
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63
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64 StateUpdate(OrthancPluginJobStepStatus status) :
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65 status_(status)
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66 {
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67 }
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68
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69 StateUpdate(IState* state);
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70
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71 public:
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72 static StateUpdate* Next(IState* state) // Takes ownsership
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73 {
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74 return new StateUpdate(state);
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75 }
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76
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77 static StateUpdate* Continue()
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78 {
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79 return new StateUpdate(OrthancPluginJobStepStatus_Continue);
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80 }
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81
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82 static StateUpdate* Success()
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83 {
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84 return new StateUpdate(OrthancPluginJobStepStatus_Success);
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85 }
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86
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87 static StateUpdate* Failure()
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88 {
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89 return new StateUpdate(OrthancPluginJobStepStatus_Failure);
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90 }
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91
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92 OrthancPluginJobStepStatus GetStatus() const
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93 {
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94 return status_;
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95 }
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96
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97 bool IsOtherState() const
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98 {
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99 return state_.get() != NULL;
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100 }
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101
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102 IState* ReleaseOtherState();
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103 };
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104
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105
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106 class IState : public boost::noncopyable
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107 {
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108 public:
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109 virtual ~IState()
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110 {
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111 }
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112
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113 virtual StateUpdate* Step() = 0;
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114
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115 virtual void Stop(OrthancPluginJobStopReason reason) = 0;
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116 };
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117
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118
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119 virtual StateUpdate* CreateInitialState(JobInfo& info) = 0;
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120
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121
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122 private:
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123 std::auto_ptr<IState> state_;
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124 JobInfo info_;
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125
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126
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127 public:
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128 StatefulOrthancJob(const std::string& jobType);
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129
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130 virtual OrthancPluginJobStepStatus Step();
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131
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132 virtual void Stop(OrthancPluginJobStopReason reason);
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133
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134 virtual void Reset();
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135 };
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136 }
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