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annotate OrthancServer/LuaScripting.cpp @ 1444:b2b09a3dbd8e

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refactoring: OrthancHttpHandler inside OrthancServer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 01 Jul 2015 12:09:58 +0200
parents f3672356c121
children d26c8a93d05a
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #include "PrecompiledHeadersServer.h"
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34 #include "LuaScripting.h"
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35
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36 #include "ServerContext.h"
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37 #include "OrthancInitialization.h"
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38 #include "../Core/Lua/LuaFunctionCall.h"
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39 #include "../Core/HttpServer/StringHttpOutput.h"
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40
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41 #include "Scheduler/DeleteInstanceCommand.h"
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42 #include "Scheduler/StoreScuCommand.h"
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43 #include "Scheduler/StorePeerCommand.h"
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44 #include "Scheduler/ModifyInstanceCommand.h"
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45 #include "Scheduler/CallSystemCommand.h"
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46 #include "OrthancRestApi/OrthancRestApi.h"
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47
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48 #include <glog/logging.h>
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49 #include <EmbeddedResources.h>
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50
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51
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52 namespace Orthanc
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53 {
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54 ServerContext* LuaScripting::GetServerContext(lua_State *state)
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55 {
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56 const void* value = LuaContext::GetGlobalVariable(state, "_ServerContext");
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57 return const_cast<ServerContext*>(reinterpret_cast<const ServerContext*>(value));
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58 }
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59
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60
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61 int LuaScripting::RestApiGet(lua_State *state)
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62 {
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63 ServerContext* serverContext = GetServerContext(state);
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64 if (serverContext == NULL)
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65 {
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66 LOG(ERROR) << "Lua: The Orthanc API is unavailable";
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67 lua_pushnil(state);
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68 return 1;
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69 }
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70
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71 // Check the types of the arguments
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72 int nArgs = lua_gettop(state);
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73 if ((nArgs != 1 && nArgs != 2) ||
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74 !lua_isstring(state, 1) || // URI
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75 (nArgs == 2 && !lua_isboolean(state, 2))) // Restrict to built-in API?
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76 {
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77 LOG(ERROR) << "Lua: Bad parameters to RestApiGet()";
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78 lua_pushnil(state);
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79 return 1;
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80 }
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81
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82 const char* uri = lua_tostring(state, 1);
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83 bool builtin = (nArgs == 2 ? lua_toboolean(state, 2) : false);
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84
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85 IHttpHandler& handler = (builtin ?
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86 serverContext->GetHttpHandler().GetOrthancRestApi() :
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87 serverContext->GetHttpHandler());
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88
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89 std::string str;
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90 if (HttpToolbox::SimpleGet(str, handler, uri))
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91 {
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92 lua_pushstring(state, str.c_str());
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93 }
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94 else
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95 {
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96 LOG(ERROR) << "Lua: Error in RestApiGet() for URI " << uri;
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97 lua_pushnil(state);
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98 }
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99
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100 return 1;
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101 }
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102
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103
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104 IServerCommand* LuaScripting::ParseOperation(const std::string& operation,
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105 const Json::Value& parameters)
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106 {
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107 if (operation == "delete")
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108 {
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109 LOG(INFO) << "Lua script to delete resource " << parameters["Resource"].asString();
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110 return new DeleteInstanceCommand(context_);
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111 }
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112
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113 if (operation == "store-scu")
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114 {
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115 std::string localAet;
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116 if (parameters.isMember("LocalAet"))
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117 {
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118 localAet = parameters["LocalAet"].asString();
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119 }
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120 else
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121 {
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122 localAet = context_.GetDefaultLocalApplicationEntityTitle();
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123 }
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124
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125 std::string modality = parameters["Modality"].asString();
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126 LOG(INFO) << "Lua script to send resource " << parameters["Resource"].asString()
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127 << " to modality " << modality << " using Store-SCU";
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128 return new StoreScuCommand(context_, localAet,
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129 Configuration::GetModalityUsingSymbolicName(modality), true);
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130 }
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diff changeset
131
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diff changeset
132 if (operation == "store-peer")
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diff changeset
133 {
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134 std::string peer = parameters["Peer"].asString();
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135 LOG(INFO) << "Lua script to send resource " << parameters["Resource"].asString()
1433
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136 << " to peer " << peer << " using HTTP";
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diff changeset
137
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diff changeset
138 OrthancPeerParameters parameters;
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diff changeset
139 Configuration::GetOrthancPeer(parameters, peer);
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diff changeset
140 return new StorePeerCommand(context_, parameters, true);
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parents:
diff changeset
141 }
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parents:
diff changeset
142
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diff changeset
143 if (operation == "modify")
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diff changeset
144 {
1435
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145 LOG(INFO) << "Lua script to modify resource " << parameters["Resource"].asString();
1433
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diff changeset
146 DicomModification modification;
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diff changeset
147 OrthancRestApi::ParseModifyRequest(modification, parameters);
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diff changeset
148
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149 std::auto_ptr<ModifyInstanceCommand> command(new ModifyInstanceCommand(context_, modification));
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150 return command.release();
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151 }
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diff changeset
152
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153 if (operation == "call-system")
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diff changeset
154 {
1435
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155 LOG(INFO) << "Lua script to call system command on " << parameters["Resource"].asString();
1433
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156
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157 const Json::Value& argsIn = parameters["Arguments"];
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158 if (argsIn.type() != Json::arrayValue)
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159 {
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160 throw OrthancException(ErrorCode_BadParameterType);
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161 }
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162
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163 std::vector<std::string> args;
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164 args.reserve(argsIn.size());
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165 for (Json::Value::ArrayIndex i = 0; i < argsIn.size(); ++i)
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166 {
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167 // http://jsoncpp.sourceforge.net/namespace_json.html#7d654b75c16a57007925868e38212b4e
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168 switch (argsIn[i].type())
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169 {
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diff changeset
170 case Json::stringValue:
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171 args.push_back(argsIn[i].asString());
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diff changeset
172 break;
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diff changeset
173
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174 case Json::intValue:
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175 args.push_back(boost::lexical_cast<std::string>(argsIn[i].asInt()));
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diff changeset
176 break;
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diff changeset
177
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diff changeset
178 case Json::uintValue:
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179 args.push_back(boost::lexical_cast<std::string>(argsIn[i].asUInt()));
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diff changeset
180 break;
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diff changeset
181
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diff changeset
182 case Json::realValue:
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diff changeset
183 args.push_back(boost::lexical_cast<std::string>(argsIn[i].asFloat()));
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diff changeset
184 break;
461e7554bff7 refactoring: LuaScripting
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parents:
diff changeset
185
461e7554bff7 refactoring: LuaScripting
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diff changeset
186 default:
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diff changeset
187 throw OrthancException(ErrorCode_BadParameterType);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
188 }
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
189 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
190
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diff changeset
191 return new CallSystemCommand(context_, parameters["Command"].asString(), args);
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parents:
diff changeset
192 }
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parents:
diff changeset
193
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diff changeset
194 throw OrthancException(ErrorCode_ParameterOutOfRange);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
195 }
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
196
461e7554bff7 refactoring: LuaScripting
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diff changeset
197
1435
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diff changeset
198 void LuaScripting::InitializeJob()
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diff changeset
199 {
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diff changeset
200 lua_.Execute("_InitializeJob()");
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Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
201 }
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parents: 1433
diff changeset
202
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
203
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diff changeset
204 void LuaScripting::SubmitJob(const std::string& description)
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diff changeset
205 {
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diff changeset
206 Json::Value operations;
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diff changeset
207 LuaFunctionCall call2(lua_, "_AccessJob");
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parents: 1433
diff changeset
208 call2.ExecuteToJson(operations);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
209
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
210 if (operations.type() != Json::arrayValue)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
211 {
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diff changeset
212 throw OrthancException(ErrorCode_InternalError);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
213 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
214
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diff changeset
215 ServerJob job;
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
216 ServerCommandInstance* previousCommand = NULL;
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
217
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parents: 1433
diff changeset
218 for (Json::Value::ArrayIndex i = 0; i < operations.size(); ++i)
6406f5493d92 refactoring: Lua toolbox
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parents: 1433
diff changeset
219 {
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
220 if (operations[i].type() != Json::objectValue ||
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
221 !operations[i].isMember("Operation"))
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
222 {
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
223 throw OrthancException(ErrorCode_InternalError);
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
224 }
6406f5493d92 refactoring: Lua toolbox
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parents: 1433
diff changeset
225
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diff changeset
226 const Json::Value& parameters = operations[i];
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diff changeset
227 std::string operation = parameters["Operation"].asString();
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
228
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
229 ServerCommandInstance& command = job.AddCommand(ParseOperation(operation, operations[i]));
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
230
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
231 if (!parameters.isMember("Resource"))
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
232 {
6406f5493d92 refactoring: Lua toolbox
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parents: 1433
diff changeset
233 throw OrthancException(ErrorCode_InternalError);
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
234 }
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
235
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
236 std::string resource = parameters["Resource"].asString();
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
237 if (resource.empty())
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
238 {
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
239 previousCommand->ConnectOutput(command);
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
240 }
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
241 else
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
242 {
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
243 command.AddInput(resource);
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
244 }
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
245
6406f5493d92 refactoring: Lua toolbox
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parents: 1433
diff changeset
246 previousCommand = &command;
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
247 }
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
248
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
249 job.SetDescription(description);
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
250 context_.GetScheduler().Submit(job);
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
251 }
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
252
6406f5493d92 refactoring: Lua toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1433
diff changeset
253
1444
b2b09a3dbd8e refactoring: OrthancHttpHandler inside OrthancServer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1441
diff changeset
254 LuaScripting::LuaScripting(ServerContext& context) : context_(context)
1433
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
255 {
1444
b2b09a3dbd8e refactoring: OrthancHttpHandler inside OrthancServer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1441
diff changeset
256 lua_.SetGlobalVariable("_ServerContext", &context);
b2b09a3dbd8e refactoring: OrthancHttpHandler inside OrthancServer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1441
diff changeset
257 lua_.RegisterFunction("RestApiGet", RestApiGet);
1437
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1436
diff changeset
258
1433
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
259 lua_.Execute(Orthanc::EmbeddedResources::LUA_TOOLBOX);
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
260 lua_.SetHttpProxy(Configuration::GetGlobalStringParameter("HttpProxy", ""));
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
261 }
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
262
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
263
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
264 void LuaScripting::ApplyOnStoredInstance(const std::string& instanceId,
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
265 const Json::Value& simplifiedTags,
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
266 const Json::Value& metadata,
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
267 const std::string& remoteAet,
461e7554bff7 refactoring: LuaScripting
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
268 const std::string& calledAet)
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269 {
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270 static const char* NAME = "OnStoredInstance";
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271
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272 if (lua_.IsExistingFunction(NAME))
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273 {
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274 InitializeJob();
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275
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276 LuaFunctionCall call(lua_, NAME);
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277 call.PushString(instanceId);
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278 call.PushJson(simplifiedTags);
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279 call.PushJson(metadata);
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280 call.PushJson(remoteAet);
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281 call.PushJson(calledAet);
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282 call.Execute();
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283
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284 SubmitJob(std::string("Lua script: ") + NAME);
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285 }
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286 }
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287
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288
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289 void LuaScripting::SignalStoredInstance(const std::string& publicId,
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290 DicomInstanceToStore& instance,
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291 const Json::Value& simplifiedTags)
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292 {
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293 boost::mutex::scoped_lock lock(mutex_);
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294
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295 Json::Value metadata = Json::objectValue;
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296
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297 for (ServerIndex::MetadataMap::const_iterator
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298 it = instance.GetMetadata().begin();
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299 it != instance.GetMetadata().end(); ++it)
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300 {
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301 if (it->first.first == ResourceType_Instance)
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302 {
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303 metadata[EnumerationToString(it->first.second)] = it->second;
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304 }
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305 }
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306
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307 ApplyOnStoredInstance(publicId, simplifiedTags, metadata,
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308 instance.GetRemoteAet(), instance.GetCalledAet());
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309 }
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310
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311
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312
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313 void LuaScripting::OnStableResource(const ServerIndexChange& change)
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314 {
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315 const char* name;
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316
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317 switch (change.GetChangeType())
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318 {
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319 case ChangeType_StablePatient:
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320 name = "OnStablePatient";
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321 break;
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322
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323 case ChangeType_StableStudy:
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324 name = "OnStableStudy";
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325 break;
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326
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327 case ChangeType_StableSeries:
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328 name = "OnStableSeries";
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329 break;
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330
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331 default:
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332 throw OrthancException(ErrorCode_InternalError);
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333 }
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334
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335
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336 Json::Value tags;
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337 if (context_.GetIndex().LookupResource(tags, change.GetPublicId(), change.GetResourceType()))
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338 {
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339 boost::mutex::scoped_lock lock(mutex_);
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340
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341 if (lua_.IsExistingFunction(name))
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342 {
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343 InitializeJob();
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344
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345 LuaFunctionCall call(lua_, name);
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346 call.PushString(change.GetPublicId());
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347 call.PushJson(tags["MainDicomTags"]);
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348 call.Execute();
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349
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350 SubmitJob(std::string("Lua script: ") + name);
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351 }
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352 }
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353 }
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354
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355
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356
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357 void LuaScripting::SignalChange(const ServerIndexChange& change)
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358 {
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359 if (change.GetChangeType() == ChangeType_StablePatient ||
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360 change.GetChangeType() == ChangeType_StableStudy ||
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361 change.GetChangeType() == ChangeType_StableSeries)
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362 {
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363 OnStableResource(change);
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364 }
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365 }
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366
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367
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368 bool LuaScripting::FilterIncomingInstance(const Json::Value& simplified,
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369 const std::string& remoteAet)
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370 {
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371 static const char* NAME = "ReceivedInstanceFilter";
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372
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373 boost::mutex::scoped_lock lock(mutex_);
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374
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375 if (lua_.IsExistingFunction(NAME))
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376 {
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377 LuaFunctionCall call(lua_, NAME);
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378 call.PushJson(simplified);
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379 call.PushString(remoteAet);
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380
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381 if (!call.ExecutePredicate())
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382 {
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383 return false;
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384 }
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385 }
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386
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387 return true;
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388 }
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389 }