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annotate OrthancServer/Plugins/Engine/PluginsManager.cpp @ 5660:e4d9a872998f

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replaced incorrect macro WIN32 by _WIN32
author Sebastien Jodogne <s.jodogne@gmail.com>
date Sun, 23 Jun 2024 10:24:31 +0200
parents f7adfb22e20e
children
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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8 *
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9 * This program is free software: you can redistribute it and/or
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10 * modify it under the terms of the GNU General Public License as
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11 * published by the Free Software Foundation, either version 3 of the
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12 * License, or (at your option) any later version.
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13 *
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14 * This program is distributed in the hope that it will be useful, but
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 * General Public License for more details.
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18 *
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19 * You should have received a copy of the GNU General Public License
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20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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21 **/
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22
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23
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24 #include "../../Sources/PrecompiledHeadersServer.h"
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25 #include "PluginsManager.h"
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26
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27 #if ORTHANC_ENABLE_PLUGINS != 1
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28 #error The plugin support is disabled
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29 #endif
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30
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31 #include "../../../OrthancFramework/Sources/HttpServer/HttpOutput.h"
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32 #include "../../../OrthancFramework/Sources/Logging.h"
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33 #include "../../../OrthancFramework/Sources/OrthancException.h"
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34 #include "../../../OrthancFramework/Sources/Toolbox.h"
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35
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36 #include <cassert>
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37 #include <memory>
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38 #include <boost/filesystem.hpp>
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39
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40 #ifdef _WIN32
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41 #define PLUGIN_EXTENSION ".dll"
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42 #elif defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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43 #define PLUGIN_EXTENSION ".so"
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44 #elif defined(__APPLE__) && defined(__MACH__)
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45 #define PLUGIN_EXTENSION ".dylib"
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46 #else
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47 #error Support your platform here
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48 #endif
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49
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50
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51 namespace Orthanc
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52 {
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53 PluginsManager::Plugin::Plugin(PluginsManager& pluginManager,
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54 const std::string& path) :
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55 library_(path),
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56 pluginManager_(pluginManager)
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57 {
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58 memset(&context_, 0, sizeof(context_));
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59 context_.pluginsManager = this;
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60 context_.orthancVersion = ORTHANC_VERSION;
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61 context_.Free = ::free;
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62 context_.InvokeService = InvokeService;
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63 }
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64
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65
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66 static void CallInitialize(SharedLibrary& plugin,
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67 const OrthancPluginContext& context)
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68 {
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69 typedef int32_t (*Initialize) (const OrthancPluginContext*);
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70
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71 #if defined(_WIN32)
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72 Initialize initialize = (Initialize) plugin.GetFunction("OrthancPluginInitialize");
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73 #else
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74 /**
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75 * gcc would complain about "ISO C++ forbids casting between
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76 * pointer-to-function and pointer-to-object" without the trick
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77 * below, that is known as "the POSIX.1-2003 (Technical Corrigendum
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78 * 1) workaround". See the man page of "dlsym()".
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79 * http://www.trilithium.com/johan/2004/12/problem-with-dlsym/
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80 * http://stackoverflow.com/a/14543811/881731
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81 **/
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82
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83 Initialize initialize;
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84 *(void **) (&initialize) = plugin.GetFunction("OrthancPluginInitialize");
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85 #endif
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86
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87 assert(initialize != NULL);
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88 int32_t error = initialize(&context);
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89
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90 if (error != 0)
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91 {
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92 LOG(ERROR) << "Error while initializing plugin " << plugin.GetPath()
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93 << " (code " << error << ")";
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94 throw OrthancException(ErrorCode_SharedLibrary);
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95 }
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96 }
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97
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98
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99 static void CallFinalize(SharedLibrary& plugin)
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100 {
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101 typedef void (*Finalize) ();
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102
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103 #if defined(_WIN32)
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104 Finalize finalize = (Finalize) plugin.GetFunction("OrthancPluginFinalize");
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105 #else
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106 Finalize finalize;
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107 *(void **) (&finalize) = plugin.GetFunction("OrthancPluginFinalize");
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108 #endif
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109
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110 assert(finalize != NULL);
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111 finalize();
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112 }
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113
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114
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115 static const char* CallGetName(SharedLibrary& plugin)
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116 {
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117 typedef const char* (*GetName) ();
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118
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119 #if defined(_WIN32)
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120 GetName getName = (GetName) plugin.GetFunction("OrthancPluginGetName");
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121 #else
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122 GetName getName;
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123 *(void **) (&getName) = plugin.GetFunction("OrthancPluginGetName");
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124 #endif
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125
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126 assert(getName != NULL);
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127 return getName();
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128 }
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129
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130
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131 static const char* CallGetVersion(SharedLibrary& plugin)
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132 {
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133 typedef const char* (*GetVersion) ();
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134
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135 #if defined(_WIN32)
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136 GetVersion getVersion = (GetVersion) plugin.GetFunction("OrthancPluginGetVersion");
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137 #else
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138 GetVersion getVersion;
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139 *(void **) (&getVersion) = plugin.GetFunction("OrthancPluginGetVersion");
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140 #endif
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141
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142 assert(getVersion != NULL);
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143 return getVersion();
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144 }
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145
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146
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147 OrthancPluginErrorCode PluginsManager::InvokeService(OrthancPluginContext* context,
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148 _OrthancPluginService service,
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149 const void* params)
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150 {
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151 switch (service)
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152 {
907
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153 case _OrthancPluginService_LogError:
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154 LOG(ERROR) << reinterpret_cast<const char*>(params);
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155 return OrthancPluginErrorCode_Success;
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156
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157 case _OrthancPluginService_LogWarning:
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158 LOG(WARNING) << reinterpret_cast<const char*>(params);
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159 return OrthancPluginErrorCode_Success;
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160
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161 case _OrthancPluginService_LogInfo:
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162 CLOG(INFO, PLUGINS) << reinterpret_cast<const char*>(params);
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163 return OrthancPluginErrorCode_Success;
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164
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165 case _OrthancPluginService_LogMessage:
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166 {
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167 const _OrthancPluginLogMessage& m = *reinterpret_cast<const _OrthancPluginLogMessage*>(params);
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168 // We can convert directly from OrthancPluginLogLevel to LogLevel (and category) because the enum values must be identical
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169 // for Orthanc::Logging to work both in the core and in the plugins
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170 Orthanc::Logging::LogLevel level = static_cast<Orthanc::Logging::LogLevel>(m.level);
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171 Orthanc::Logging::LogCategory category = static_cast<Orthanc::Logging::LogCategory>(m.category);
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172
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173 LOG_FROM_PLUGIN(level, category, m.plugin, m.file, m.line) << m.message;
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174 return OrthancPluginErrorCode_Success;
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175 }
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176
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177 default:
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178 break;
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179 }
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180
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181 Plugin* that = reinterpret_cast<Plugin*>(context->pluginsManager);
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182
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183 for (std::list<IPluginServiceProvider*>::iterator
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184 it = that->GetPluginManager().serviceProviders_.begin();
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185 it != that->GetPluginManager().serviceProviders_.end(); ++it)
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186 {
899
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187 try
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188 {
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189 if ((*it)->InvokeService(that->GetSharedLibrary(), service, params))
899
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190 {
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191 return OrthancPluginErrorCode_Success;
899
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192 }
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193 }
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194 catch (OrthancException& e)
899
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195 {
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196 // This service provider has failed
1983
0af087300b26 disable error log
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diff changeset
197 if (e.GetErrorCode() != ErrorCode_UnknownResource) // This error code is valid in plugins
0af087300b26 disable error log
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diff changeset
198 {
5100
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diff changeset
199 if (!e.HasBeenLogged())
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diff changeset
200 {
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diff changeset
201 LOG(ERROR) << "Exception while invoking plugin service " << service << ": " << e.What();
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202 }
1983
0af087300b26 disable error log
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diff changeset
203 }
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diff changeset
204
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205 return static_cast<OrthancPluginErrorCode>(e.GetErrorCode());
899
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206 }
898
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207 }
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208
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209 LOG(ERROR) << "Plugin invoking unknown service: " << service;
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210 return OrthancPluginErrorCode_UnknownPluginService;
887
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211 }
4066e6f2d134 PluginsManager
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212
4066e6f2d134 PluginsManager
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213
899
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diff changeset
214 PluginsManager::PluginsManager()
887
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215 {
4066e6f2d134 PluginsManager
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parents:
diff changeset
216 }
4066e6f2d134 PluginsManager
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parents:
diff changeset
217
4066e6f2d134 PluginsManager
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diff changeset
218 PluginsManager::~PluginsManager()
4066e6f2d134 PluginsManager
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219 {
944
c068671d12a9 fixes thanks to cppcheck
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parents: 907
diff changeset
220 for (Plugins::iterator it = plugins_.begin(); it != plugins_.end(); ++it)
887
4066e6f2d134 PluginsManager
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parents:
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221 {
888
d44b845c1c89 recursive scan for plugins
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diff changeset
222 if (it->second != NULL)
887
4066e6f2d134 PluginsManager
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diff changeset
223 {
1232
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1200
diff changeset
224 LOG(WARNING) << "Unregistering plugin '" << it->first
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
225 << "' (version " << it->second->GetVersion() << ")";
893
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diff changeset
226
1630
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diff changeset
227 CallFinalize(it->second->GetSharedLibrary());
888
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diff changeset
228 delete it->second;
887
4066e6f2d134 PluginsManager
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diff changeset
229 }
4066e6f2d134 PluginsManager
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parents:
diff changeset
230 }
4066e6f2d134 PluginsManager
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parents:
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231 }
4066e6f2d134 PluginsManager
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parents:
diff changeset
232
888
d44b845c1c89 recursive scan for plugins
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233
d44b845c1c89 recursive scan for plugins
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diff changeset
234 static bool IsOrthancPlugin(SharedLibrary& library)
d44b845c1c89 recursive scan for plugins
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diff changeset
235 {
d44b845c1c89 recursive scan for plugins
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diff changeset
236 return (library.HasFunction("OrthancPluginInitialize") &&
d44b845c1c89 recursive scan for plugins
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diff changeset
237 library.HasFunction("OrthancPluginFinalize") &&
d44b845c1c89 recursive scan for plugins
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diff changeset
238 library.HasFunction("OrthancPluginGetName") &&
d44b845c1c89 recursive scan for plugins
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parents: 887
diff changeset
239 library.HasFunction("OrthancPluginGetVersion"));
d44b845c1c89 recursive scan for plugins
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diff changeset
240 }
d44b845c1c89 recursive scan for plugins
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diff changeset
241
887
4066e6f2d134 PluginsManager
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diff changeset
242
4066e6f2d134 PluginsManager
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diff changeset
243 void PluginsManager::RegisterPlugin(const std::string& path)
4066e6f2d134 PluginsManager
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diff changeset
244 {
1272
7442097b41c9 Scan of folders for plugins
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parents: 1232
diff changeset
245 if (!boost::filesystem::exists(path))
7442097b41c9 Scan of folders for plugins
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diff changeset
246 {
7442097b41c9 Scan of folders for plugins
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diff changeset
247 LOG(ERROR) << "Inexistent path to plugins: " << path;
7442097b41c9 Scan of folders for plugins
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diff changeset
248 return;
7442097b41c9 Scan of folders for plugins
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diff changeset
249 }
7442097b41c9 Scan of folders for plugins
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parents: 1232
diff changeset
250
7442097b41c9 Scan of folders for plugins
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parents: 1232
diff changeset
251 if (boost::filesystem::is_directory(path))
7442097b41c9 Scan of folders for plugins
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diff changeset
252 {
7442097b41c9 Scan of folders for plugins
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diff changeset
253 ScanFolderForPlugins(path, false);
7442097b41c9 Scan of folders for plugins
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diff changeset
254 return;
7442097b41c9 Scan of folders for plugins
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diff changeset
255 }
7442097b41c9 Scan of folders for plugins
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parents: 1232
diff changeset
256
3712
2a170a8f1faf replacing std::auto_ptr by std::unique_ptr
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parents: 3640
diff changeset
257 std::unique_ptr<Plugin> plugin(new Plugin(*this, path));
887
4066e6f2d134 PluginsManager
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258
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diff changeset
259 if (!IsOrthancPlugin(plugin->GetSharedLibrary()))
887
4066e6f2d134 PluginsManager
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parents:
diff changeset
260 {
1630
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parents: 1625
diff changeset
261 LOG(ERROR) << "Plugin " << plugin->GetSharedLibrary().GetPath()
887
4066e6f2d134 PluginsManager
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parents:
diff changeset
262 << " does not declare the proper entry functions";
4066e6f2d134 PluginsManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
263 throw OrthancException(ErrorCode_SharedLibrary);
4066e6f2d134 PluginsManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
264 }
4066e6f2d134 PluginsManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
265
1630
ffd23c0104af "/system" URI gives information about the plugins used for storage area and DB back-end
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parents: 1625
diff changeset
266 std::string name(CallGetName(plugin->GetSharedLibrary()));
888
d44b845c1c89 recursive scan for plugins
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diff changeset
267 if (plugins_.find(name) != plugins_.end())
d44b845c1c89 recursive scan for plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 887
diff changeset
268 {
d44b845c1c89 recursive scan for plugins
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diff changeset
269 LOG(ERROR) << "Plugin '" << name << "' already registered";
d44b845c1c89 recursive scan for plugins
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parents: 887
diff changeset
270 throw OrthancException(ErrorCode_SharedLibrary);
d44b845c1c89 recursive scan for plugins
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diff changeset
271 }
d44b845c1c89 recursive scan for plugins
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 887
diff changeset
272
1630
ffd23c0104af "/system" URI gives information about the plugins used for storage area and DB back-end
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parents: 1625
diff changeset
273 plugin->SetVersion(CallGetVersion(plugin->GetSharedLibrary()));
888
d44b845c1c89 recursive scan for plugins
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parents: 887
diff changeset
274 LOG(WARNING) << "Registering plugin '" << name
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275 << "' (version " << plugin->GetVersion() << ")";
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276
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277 CallInitialize(plugin->GetSharedLibrary(), plugin->GetContext());
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278
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279 plugins_[name] = plugin.release();
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280 }
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281
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282
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283 void PluginsManager::ScanFolderForPlugins(const std::string& folder,
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284 bool isRecursive)
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285 {
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286 using namespace boost::filesystem;
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287
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288 if (!exists(folder))
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289 {
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290 return;
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291 }
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292
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293 CLOG(INFO, PLUGINS) << "Scanning folder " << folder << " for plugins";
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294
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295 directory_iterator end_it; // default construction yields past-the-end
889
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296 for (directory_iterator it(folder);
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297 it != end_it;
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298 ++it)
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299 {
889
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300 std::string path = it->path().string();
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301
888
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302 if (is_directory(it->status()))
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303 {
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304 if (isRecursive)
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305 {
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306 ScanFolderForPlugins(path, true);
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307 }
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308 }
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309 else
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310 {
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a7c88563c8cc fix build with boost 1.85.0
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311 std::string extension = it->path().extension().string();
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5a92665dee23 Sample plugin: Serve folders
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312 Toolbox::ToLowerCase(extension);
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313
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314 if (extension == PLUGIN_EXTENSION)
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315 {
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316 CLOG(INFO, PLUGINS) << "Found a shared library: " << it->path();
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317
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318 SharedLibrary plugin(path);
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319 if (IsOrthancPlugin(plugin))
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320 {
1297
501432928727 refactoring
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321 RegisterPlugin(path);
888
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322 }
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323 }
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324 }
d44b845c1c89 recursive scan for plugins
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325 }
887
4066e6f2d134 PluginsManager
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326 }
1232
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
327
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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328
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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329 void PluginsManager::ListPlugins(std::list<std::string>& result) const
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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330 {
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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331 result.clear();
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
332
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
333 for (Plugins::const_iterator it = plugins_.begin();
1304
7b6925b0890d cppcheck
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diff changeset
334 it != plugins_.end(); ++it)
1232
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
335 {
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
336 result.push_back(it->first);
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
337 }
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1200
diff changeset
338 }
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1200
diff changeset
339
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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parents: 1200
diff changeset
340
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
341 bool PluginsManager::HasPlugin(const std::string& name) const
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
342 {
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
343 return plugins_.find(name) != plugins_.end();
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
344 }
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1200
diff changeset
345
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
346
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
347 const std::string& PluginsManager::GetPluginVersion(const std::string& name) const
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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diff changeset
348 {
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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parents: 1200
diff changeset
349 Plugins::const_iterator it = plugins_.find(name);
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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parents: 1200
diff changeset
350 if (it == plugins_.end())
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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parents: 1200
diff changeset
351 {
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1200
diff changeset
352 throw OrthancException(ErrorCode_ParameterOutOfRange);
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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parents: 1200
diff changeset
353 }
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1200
diff changeset
354 else
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1200
diff changeset
355 {
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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parents: 1200
diff changeset
356 return it->second->GetVersion();
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
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parents: 1200
diff changeset
357 }
f1c01451a8ee Introspection of plugins, Plugins can extend Orthanc Explorer with custom JavaScript
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1200
diff changeset
358 }
1644
939b921b2c81 plugin error dictionary
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diff changeset
359
939b921b2c81 plugin error dictionary
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1632
diff changeset
360
939b921b2c81 plugin error dictionary
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1632
diff changeset
361 std::string PluginsManager::GetPluginName(SharedLibrary& library)
939b921b2c81 plugin error dictionary
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parents: 1632
diff changeset
362 {
939b921b2c81 plugin error dictionary
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1632
diff changeset
363 return CallGetName(library);
939b921b2c81 plugin error dictionary
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1632
diff changeset
364 }
887
4066e6f2d134 PluginsManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
365 }