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annotate Sources/PythonObject.cpp @ 213:f8dc8dd2da76

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documented orthanc.RegisterIncomingCStoreInstanceFilter() and orthanc.RegisterReceivedInstanceCallback()
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 03 Jul 2024 14:56:51 +0200
parents c8de83fe7faa
children 3678a028f1f6
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1 /**
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2 * Python plugin for Orthanc
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3 * Copyright (C) 2020-2023 Osimis S.A., Belgium
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4 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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5 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, 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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21
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22 #include "PythonObject.h"
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23
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24 #include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h"
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25 #include "PythonLock.h"
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27
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28 PythonObject::PythonObject(PythonLock& lock,
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29 PyObject *object,
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30 bool borrowed) :
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31 lock_(lock),
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32 object_(object),
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33 borrowed_(borrowed)
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34 {
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35 }
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37
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38 PythonObject::~PythonObject()
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39 {
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40 if (!borrowed_ &&
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41 object_ != NULL)
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42 {
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43 Py_DECREF(object_);
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44 }
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45 }
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47
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48 PyObject* PythonObject::GetPyObject() const
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49 {
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50 if (object_ == NULL)
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51 {
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52 // "IsValid()" should have been called
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53 ORTHANC_PLUGINS_THROW_EXCEPTION(BadSequenceOfCalls);
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54 }
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55 else
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56 {
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57 return object_;
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58 }
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59 }
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61
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62 PythonObject* PythonObject::GetAttribute(const std::string& name)
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63 {
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64 return new PythonObject(lock_, PyObject_GetAttrString(GetPyObject(), name.c_str()));
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65 }
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67
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68 bool PythonObject::ToUtf8String(std::string& target,
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69 PyObject* value)
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70 {
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71 if (value == NULL)
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72 {
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73 ORTHANC_PLUGINS_THROW_EXCEPTION(NullPointer);
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74 }
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75 else if (PyUnicode_Check(value))
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76 {
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77 PythonObject encoded(lock_, PyUnicode_AsEncodedString(value, "utf-8", "replace"));
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78 if (encoded.IsValid())
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79 {
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80 target = PyBytes_AS_STRING(encoded.GetPyObject());
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81 return true;
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82 }
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83 else
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84 {
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85 target.clear();
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86 return false;
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87 }
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88 }
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89 #if PY_MAJOR_VERSION == 2
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90 else if (PyString_Check(value))
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91 {
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92 target = PyString_AS_STRING(value);
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93 return true;
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94 }
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95 #endif
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96 else
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97 {
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98 target.clear();
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99 return false;
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100 }
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101 }
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102
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103
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104 void PythonObject::Format(std::ostream& os)
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105 {
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106 std::string s;
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107 if (object_ == NULL)
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108 {
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109 os << "Can't format a NULL Python object" << std::endl;
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110 }
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111 else if (ToUtf8String(s))
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112 {
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113 os << s;
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114 }
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115 else
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116 {
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117 os << "Can't format this Python object" << std::endl;
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118 }
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119 }
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120
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121
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122 PyObject* PythonObject::Release()
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123 {
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124 if (!borrowed_ &&
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125 object_ != NULL)
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126 {
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127 PyObject* value = object_;
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128 object_ = NULL;
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129 return value;
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130 }
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131 else
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132 {
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133 ORTHANC_PLUGINS_LOG_ERROR("Cannot release a NULL or borrowed reference");
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134 ORTHANC_PLUGINS_THROW_EXCEPTION(InternalError);
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135 }
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136 }
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137
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138
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139 void PythonObject::ConvertToJson(Json::Value& target,
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140 PyObject* source)
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141 {
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142 // WARNING: The order *is* important!
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143 if (source == Py_None)
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144 {
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145 target = Json::nullValue;
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146 }
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147 else if (PyBool_Check(source))
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148 {
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149 target = (PyObject_IsTrue(source) ? true : false);
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150 }
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151 else if (PyLong_Check(source))
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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152 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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153 target = static_cast<int32_t>(PyLong_AsLong(source));
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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154 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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155 else if (PyFloat_Check(source))
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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156 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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157 target = PyFloat_AsDouble(source);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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158 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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159 else if (PyNumber_Check(source))
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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160 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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161 PythonObject asLong(lock_, PyNumber_Long(source));
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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162 if (PyLong_Check(asLong.GetPyObject()))
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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163 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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164 target = static_cast<int32_t>(PyLong_AsLong(asLong.GetPyObject()));
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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165 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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166 else
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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167 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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168 ORTHANC_PLUGINS_THROW_EXCEPTION(InternalError);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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169 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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170 }
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171 else if (PyUnicode_Check(source))
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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172 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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173 std::string s;
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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174 if (ToUtf8String(s, source))
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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175 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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176 target = s;
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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177 }
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178 else
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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179 {
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180 ORTHANC_PLUGINS_THROW_EXCEPTION(NotImplemented);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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181 }
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182 }
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183 #if PY_MAJOR_VERSION == 2
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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184 else if (PyString_Check(source))
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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185 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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186 target = PyString_AS_STRING(source);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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187 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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188 #endif
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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189 else if (PySequence_Check(source)) // tuples or lists
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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190 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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191 Py_ssize_t size = PySequence_Size(source);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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192
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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193 if (size < 0)
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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194 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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195 ORTHANC_PLUGINS_THROW_EXCEPTION(InternalError);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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196 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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197
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198 target = Json::arrayValue;
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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199 for (Py_ssize_t i = 0; i < size; i++)
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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200 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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201 Json::Value item;
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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202 ConvertToJson(item, PySequence_GetItem(source, i));
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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203 target.append(item);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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204 }
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205 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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206 else if (PyMapping_Check(source)) // dictionaries
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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207 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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208 PythonObject items(lock_, PyMapping_Items(source));
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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209
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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210 Py_ssize_t size = PySequence_Size(items.GetPyObject());
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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211
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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212 if (size < 0)
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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213 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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214 ORTHANC_PLUGINS_THROW_EXCEPTION(InternalError);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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215 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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216
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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217 for (Py_ssize_t i = 0; i < size; i++)
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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218 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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219 PyObject* pair = PySequence_GetItem(items.GetPyObject(), i);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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220
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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221 std::string key;
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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222 Json::Value value;
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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223 if (pair != NULL &&
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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224 ToUtf8String(key, PySequence_GetItem(pair, 0)))
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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225 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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226 ConvertToJson(value, PySequence_GetItem(pair, 1));
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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227 target[key] = value;
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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228 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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229 else
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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230 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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diff changeset
231 ORTHANC_PLUGINS_THROW_EXCEPTION(InternalError);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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232 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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233 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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234 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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235 else
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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236 {
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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237 ORTHANC_PLUGINS_THROW_EXCEPTION(NotImplemented);
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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238 }
3dc37a5af1b1 new method PythonObject::ConvertToJson()
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239 }