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1 /**
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2 * Transfers accelerator plugin for Orthanc
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3 * Copyright (C) 2018-2019 Osimis S.A., 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 #include "StatefulOrthancJob.h"
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21
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22 namespace OrthancPlugins
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23 {
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24 StatefulOrthancJob::JobInfo::JobInfo(StatefulOrthancJob& job) :
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25 job_(job),
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26 updated_(true),
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27 content_(Json::objectValue)
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28 {
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29 }
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30
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31
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32 void StatefulOrthancJob::JobInfo::SetContent(const std::string& key,
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33 const Json::Value& value)
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34 {
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35 content_[key] = value;
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36 updated_ = true;
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37 }
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38
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39
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40 void StatefulOrthancJob::JobInfo::Update()
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41 {
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42 if (updated_)
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43 {
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44 job_.UpdateContent(content_);
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45 updated_ = false;
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46 }
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47 }
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48
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49
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50 StatefulOrthancJob::StateUpdate::StateUpdate(IState* state) :
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51 status_(OrthancPluginJobStepStatus_Continue),
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52 state_(state)
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53 {
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54 if (state == NULL)
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55 {
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56 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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57 }
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58 }
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59
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60
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61 StatefulOrthancJob::IState* StatefulOrthancJob::StateUpdate::ReleaseOtherState()
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62 {
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63 if (state_.get() == NULL)
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64 {
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65 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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66 }
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67 else
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68 {
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69 return state_.release();
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70 }
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71 }
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72
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73
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74 StatefulOrthancJob::StatefulOrthancJob(const std::string& jobType) :
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75 OrthancJob(jobType),
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76 info_(*this)
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77 {
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78 }
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79
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80
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81 OrthancPluginJobStepStatus StatefulOrthancJob::Step()
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82 {
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83 std::auto_ptr<StateUpdate> update;
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84
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85 if (state_.get() == NULL)
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86 {
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87 update.reset(CreateInitialState(info_));
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88 }
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89 else
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90 {
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91 update.reset(state_->Step());
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92 }
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93
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94 info_.Update();
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95
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96 if (update.get() == NULL)
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97 {
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98 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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99 }
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100
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101 if (update->IsOtherState())
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102 {
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103 state_.reset(update->ReleaseOtherState());
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104 assert(state_.get() != NULL);
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105
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106 return OrthancPluginJobStepStatus_Continue;
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107 }
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108 else
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109 {
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110 OrthancPluginJobStepStatus status = update->GetStatus();
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111
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112 if (status == OrthancPluginJobStepStatus_Success)
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113 {
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114 info_.SetProgress(1);
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115 }
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116
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117 if (status == OrthancPluginJobStepStatus_Success ||
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118 status == OrthancPluginJobStepStatus_Failure)
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119 {
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120 state_.reset();
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121 }
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122
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123 return status;
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124 }
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125 }
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126
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127
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128 void StatefulOrthancJob::Stop(OrthancPluginJobStopReason reason)
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129 {
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130 if (state_.get() != NULL)
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131 {
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132 state_->Stop(reason);
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133
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134 if (reason != OrthancPluginJobStopReason_Paused)
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135 {
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136 // Drop the current state, so as to force going back to the
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137 // initial state on resubmit
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138 state_.reset();
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139 }
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140 }
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141 }
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142
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143
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144 void StatefulOrthancJob::Reset()
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145 {
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146 if (state_.get() != NULL)
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147 {
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148 // Error in the Orthanc core: Reset() should only be called
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149 // from the "Failure" state, where no "IState*" is available
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150 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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151 }
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152 }
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153 }
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