Mercurial > hg > orthanc-python
annotate Sources/PythonObject.cpp @ 39:c6cdc28d5878
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 06 Jul 2020 21:32:56 +0200 |
| parents | fd58eb5749ed |
| children | 3dc37a5af1b1 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Python plugin for Orthanc | |
| 3 * Copyright (C) 2017-2020 Osimis S.A., Belgium | |
| 4 * | |
| 5 * This program is free software: you can redistribute it and/or | |
| 6 * modify it under the terms of the GNU Affero General Public License | |
| 7 * as published by the Free Software Foundation, either version 3 of | |
| 8 * the License, or (at your option) any later version. | |
| 9 * | |
| 10 * This program is distributed in the hope that it will be useful, but | |
| 11 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 * Affero General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU Affero General Public License | |
| 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 **/ | |
| 18 | |
| 19 | |
| 20 #include "PythonObject.h" | |
| 21 | |
| 22 | |
| 23 #include "PythonLock.h" | |
| 24 | |
|
36
fd58eb5749ed
CMake simplification using DownloadOrthancFramework.cmake
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
25 #include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h" |
| 0 | 26 |
| 27 | |
| 28 PythonObject::PythonObject(PythonLock& lock, | |
| 29 PyObject *object, | |
| 30 bool borrowed) : | |
| 31 lock_(lock), | |
| 32 object_(object), | |
| 33 borrowed_(borrowed) | |
| 34 { | |
| 35 } | |
| 36 | |
| 37 | |
| 38 PythonObject::~PythonObject() | |
| 39 { | |
| 40 if (!borrowed_ && | |
| 41 object_ != NULL) | |
| 42 { | |
| 43 Py_DECREF(object_); | |
| 44 } | |
| 45 } | |
| 46 | |
| 47 | |
| 48 PyObject* PythonObject::GetPyObject() const | |
| 49 { | |
| 50 if (object_ == NULL) | |
| 51 { | |
| 52 // "IsValid()" should have been called | |
| 53 ORTHANC_PLUGINS_THROW_EXCEPTION(BadSequenceOfCalls); | |
| 54 } | |
| 55 else | |
| 56 { | |
| 57 return object_; | |
| 58 } | |
| 59 } | |
| 60 | |
| 61 | |
| 62 PythonObject* PythonObject::GetAttribute(const std::string& name) | |
| 63 { | |
| 64 return new PythonObject(lock_, PyObject_GetAttrString(GetPyObject(), name.c_str())); | |
| 65 } | |
| 66 | |
| 67 | |
| 68 bool PythonObject::ToUtf8String(std::string& target) | |
| 69 { | |
| 70 PyObject* value = GetPyObject(); // Raises an exception if needed | |
| 71 | |
| 72 if (PyUnicode_Check(value)) | |
| 73 { | |
| 74 PythonObject encoded(lock_, PyUnicode_AsEncodedString(value, "utf-8", "replace")); | |
| 75 if (encoded.IsValid()) | |
| 76 { | |
| 77 target = PyBytes_AS_STRING(encoded.GetPyObject()); | |
| 78 return true; | |
| 79 } | |
| 80 else | |
| 81 { | |
| 82 target.clear(); | |
| 83 return false; | |
| 84 } | |
| 85 } | |
| 86 #if PY_MAJOR_VERSION == 2 | |
| 87 else if (PyString_Check(value)) | |
| 88 { | |
| 89 target = PyString_AS_STRING(value); | |
| 90 return true; | |
| 91 } | |
| 92 #endif | |
| 93 else | |
| 94 { | |
| 95 target.clear(); | |
| 96 return false; | |
| 97 } | |
| 98 } | |
| 99 | |
| 100 | |
| 101 void PythonObject::Format(std::ostream& os) | |
| 102 { | |
| 103 std::string s; | |
| 104 if (object_ == NULL) | |
| 105 { | |
| 106 os << "Can't format a NULL Python object" << std::endl; | |
| 107 } | |
| 108 else if (ToUtf8String(s)) | |
| 109 { | |
| 110 os << s; | |
| 111 } | |
| 112 else | |
| 113 { | |
| 114 os << "Can't format this Python object" << std::endl; | |
| 115 } | |
| 116 } | |
| 117 | |
| 118 | |
| 119 PyObject* PythonObject::Release() | |
| 120 { | |
| 121 if (!borrowed_ && | |
| 122 object_ != NULL) | |
| 123 { | |
| 124 PyObject* value = object_; | |
| 125 object_ = NULL; | |
| 126 return value; | |
| 127 } | |
| 128 else | |
| 129 { | |
| 130 OrthancPlugins::LogError("Cannot release a NULL or borrowed reference"); | |
| 131 ORTHANC_PLUGINS_THROW_EXCEPTION(InternalError); | |
| 132 } | |
| 133 } | |
| 134 |