Mercurial > hg > orthanc-python

annotate Sources/ReceivedInstanceCallback.cpp @ 227:9574f06d8588 default tip

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author Alain Mazy <am@orthanc.team>
date Tue, 24 Sep 2024 08:54:11 +0200
parents 3678a028f1f6
children
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1 /**
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2 * SPDX-FileCopyrightText: 2020-2023 Osimis S.A., 2024-2024 Orthanc Team SRL, 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain
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3 * SPDX-License-Identifier: AGPL-3.0-or-later
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4 */
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6 /**
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7 * Python plugin for Orthanc
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8 * Copyright (C) 2020-2023 Osimis S.A., Belgium
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9 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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10 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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11 *
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12 * This program is free software: you can redistribute it and/or
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13 * modify it under the terms of the GNU Affero General Public License
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14 * as published by the Free Software Foundation, either version 3 of
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15 * the License, or (at your option) any later version.
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16 *
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17 * This program is distributed in the hope that it will be useful, but
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18 * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 * Affero General Public License for more details.
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21 *
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22 * You should have received a copy of the GNU Affero General Public License
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23 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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24 **/
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27 #include "ReceivedInstanceCallback.h"
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28
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29 #include "PythonHeaderWrapper.h"
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31 #include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h"
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32 #include "ICallbackRegistration.h"
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33 #include "PythonString.h"
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34
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35
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36 #if ORTHANC_PLUGINS_VERSION_IS_ABOVE(1, 10, 0)
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37
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38 #include <Compatibility.h> // For std::unique_ptr<>
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39
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40 static PyObject* receivedInstanceCallback_ = NULL;
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42
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43 static OrthancPluginReceivedInstanceAction ReceivedInstanceCallback(
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44 OrthancPluginMemoryBuffer64* modifiedDicomBuffer /* out */,
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45 const void* receivedDicomBuffer,
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46 uint64_t receivedDicomBufferSize,
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47 OrthancPluginInstanceOrigin origin)
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48 {
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49 try
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50 {
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51 PythonLock lock;
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52
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53 PythonObject args(lock, PyTuple_New(2));
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54
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55 PyTuple_SetItem(args.GetPyObject(), 0, PyBytes_FromStringAndSize(reinterpret_cast<const char*>(receivedDicomBuffer), receivedDicomBufferSize));
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56 PyTuple_SetItem(args.GetPyObject(), 1, PyLong_FromLong(origin));
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57
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58 PythonObject result(lock, PyObject_CallObject(receivedInstanceCallback_, args.GetPyObject()));
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59
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60 std::string traceback;
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61 if (lock.HasErrorOccurred(traceback))
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62 {
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63 ORTHANC_PLUGINS_LOG_ERROR("Error in the Python received instance callback, traceback:\n" + traceback);
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64 return OrthancPluginReceivedInstanceAction_KeepAsIs;
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65 }
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66 else if (!PyTuple_Check(result.GetPyObject()) || PyTuple_Size(result.GetPyObject()) != 2)
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67 {
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68 ORTHANC_PLUGINS_LOG_ERROR("The Python received instance callback has not returned a tuple as expected");
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69 return OrthancPluginReceivedInstanceAction_KeepAsIs;
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70 }
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71 else
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72 {
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73 PyObject* returnCode = PyTuple_GET_ITEM(result.GetPyObject(), 0);
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74 PyObject* modifiedDicom = PyTuple_GET_ITEM(result.GetPyObject(), 1);
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75
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76 if (!PyLong_Check(returnCode))
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77 {
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78 ORTHANC_PLUGINS_LOG_ERROR("The Python received instance callback has not returned an int as the first element of the return tuple");
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79 return OrthancPluginReceivedInstanceAction_KeepAsIs;
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80 }
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81
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82 OrthancPluginReceivedInstanceAction resultCode = static_cast<OrthancPluginReceivedInstanceAction>(PyLong_AsLong(returnCode));
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83
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84 if (resultCode == OrthancPluginReceivedInstanceAction_KeepAsIs ||
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85 resultCode == OrthancPluginReceivedInstanceAction_Discard)
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86 {
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87 return resultCode;
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88 }
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89 else
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90 {
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91 char* pythonBuffer = NULL;
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92 Py_ssize_t pythonSize = 0;
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93 if (PyBytes_AsStringAndSize(modifiedDicom, &pythonBuffer, &pythonSize) == 1)
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94 {
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95 ORTHANC_PLUGINS_LOG_ERROR("Cannot access the byte buffer returned by the Python received instance callback");
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96 return OrthancPluginReceivedInstanceAction_KeepAsIs;
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97 }
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98 else
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99 {
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100 OrthancPluginCreateMemoryBuffer64(OrthancPlugins::GetGlobalContext(), modifiedDicomBuffer, pythonSize);
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101
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102 if (pythonSize != 0)
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103 {
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104 if (modifiedDicomBuffer->data == NULL)
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105 {
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106 ORTHANC_PLUGINS_LOG_ERROR("Cannot allocate memory in the Python received instance callback");
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107 return OrthancPluginReceivedInstanceAction_KeepAsIs;
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108 }
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109 else
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110 {
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111 memcpy(modifiedDicomBuffer->data, pythonBuffer, pythonSize);
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112 }
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113 }
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114
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115 return OrthancPluginReceivedInstanceAction_Modify;
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116 }
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117 }
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118 }
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119 }
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120 catch (OrthancPlugins::PluginException& e)
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121 {
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122 ORTHANC_PLUGINS_LOG_ERROR("Error in the Python received instance callback: " +
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123 std::string(e.What(OrthancPlugins::GetGlobalContext())));
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124 }
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125
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126 return OrthancPluginReceivedInstanceAction_KeepAsIs;
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127 }
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130 PyObject* RegisterReceivedInstanceCallback(PyObject* module, PyObject* args)
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131 {
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132 // The GIL is locked at this point (no need to create "PythonLock")
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133
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134 class Registration : public ICallbackRegistration
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135 {
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136 public:
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137 virtual void Register() ORTHANC_OVERRIDE
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138 {
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139 OrthancPluginRegisterReceivedInstanceCallback(
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140 OrthancPlugins::GetGlobalContext(), ReceivedInstanceCallback);
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141 }
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142 };
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143
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144 Registration registration;
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145 return ICallbackRegistration::Apply(
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146 registration, args, receivedInstanceCallback_, "Python received instance callback");
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147 }
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148
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149
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150 void FinalizeReceivedInstanceCallback()
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151 {
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152 ICallbackRegistration::Unregister(receivedInstanceCallback_);
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153 }
100
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154
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155 #else
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156
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157 #warning OrthancPluginRegisterReceivedInstanceCallback() is not supported
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158
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159 PyObject* RegisterReceivedInstanceCallback(PyObject* module, PyObject* args)
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160 {
102
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161 PyErr_SetString(PyExc_RuntimeError, "The version of your Orthanc SDK doesn't provide OrthancPluginRegisterReceivedInstanceCallback()");
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162 return NULL;
100
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163 }
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164
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165 void FinalizeReceivedInstanceCallback()
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166 {
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167 }
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168
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169 #endif