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annotate OrthancFramework/Sources/Lua/LuaFunctionCall.cpp @ 4300:b30a8de92ad9

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abi continued
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 05 Nov 2020 19:33:18 +0100
parents bf7b9edf6b81
children d9473bd5ed43
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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) 2017-2020 Osimis S.A., 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 Lesser 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 * Lesser 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 Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #include "../PrecompiledHeaders.h"
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24 #include "LuaFunctionCall.h"
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25
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26 #include "../OrthancException.h"
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27 #include "../Logging.h"
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28
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29 #if ORTHANC_ENABLE_DCMTK == 1
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30 # include "../DicomParsing/FromDcmtkBridge.h"
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31 #endif
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32
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33 #include <cassert>
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34 #include <stdio.h>
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35 #include <boost/lexical_cast.hpp>
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36
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37 namespace Orthanc
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38 {
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39 void LuaFunctionCall::CheckAlreadyExecuted()
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40 {
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41 if (isExecuted_)
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42 {
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43 throw OrthancException(ErrorCode_LuaAlreadyExecuted);
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44 }
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45 }
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46
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47 LuaFunctionCall::LuaFunctionCall(LuaContext& context,
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48 const char* functionName) :
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49 context_(context),
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50 isExecuted_(false)
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51 {
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52 // Clear the stack to fulfill the invariant
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53 lua_settop(context_.lua_, 0);
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54 lua_getglobal(context_.lua_, functionName);
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55 }
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56
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57 void LuaFunctionCall::PushString(const std::string& value)
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58 {
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59 CheckAlreadyExecuted();
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60 lua_pushlstring(context_.lua_, value.c_str(), value.size());
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61 }
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62
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63 void LuaFunctionCall::PushBoolean(bool value)
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64 {
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65 CheckAlreadyExecuted();
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66 lua_pushboolean(context_.lua_, value);
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67 }
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68
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69 void LuaFunctionCall::PushInteger(int value)
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70 {
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71 CheckAlreadyExecuted();
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72 lua_pushinteger(context_.lua_, value);
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73 }
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74
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75 void LuaFunctionCall::PushDouble(double value)
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76 {
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77 CheckAlreadyExecuted();
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78 lua_pushnumber(context_.lua_, value);
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79 }
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80
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81 void LuaFunctionCall::PushJson(const Json::Value& value)
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82 {
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83 CheckAlreadyExecuted();
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84 context_.PushJson(value);
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85 }
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86
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87 void LuaFunctionCall::ExecuteInternal(int numOutputs)
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88 {
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89 CheckAlreadyExecuted();
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90
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91 assert(lua_gettop(context_.lua_) >= 1);
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92 int nargs = lua_gettop(context_.lua_) - 1;
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93 int error = lua_pcall(context_.lua_, nargs, numOutputs, 0);
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94
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95 if (error)
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96 {
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97 assert(lua_gettop(context_.lua_) >= 1);
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98
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99 std::string description(lua_tostring(context_.lua_, -1));
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100 lua_pop(context_.lua_, 1); /* pop error message from the stack */
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101
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102 throw OrthancException(ErrorCode_CannotExecuteLua, description);
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103 }
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104
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105 if (lua_gettop(context_.lua_) < numOutputs)
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106 {
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107 throw OrthancException(ErrorCode_LuaBadOutput);
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108 }
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109
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110 isExecuted_ = true;
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111 }
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112
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113 bool LuaFunctionCall::ExecutePredicate()
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114 {
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115 ExecuteInternal(1);
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116
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117 if (!lua_isboolean(context_.lua_, 1))
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118 {
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119 throw OrthancException(ErrorCode_NotLuaPredicate);
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120 }
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121
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122 return lua_toboolean(context_.lua_, 1) != 0;
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123 }
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124
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125
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126 void LuaFunctionCall::ExecuteToJson(Json::Value& result,
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127 bool keepStrings)
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128 {
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129 ExecuteInternal(1);
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130 context_.GetJson(result, context_.lua_, lua_gettop(context_.lua_), keepStrings);
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131 }
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132
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133
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134 void LuaFunctionCall::ExecuteToString(std::string& result)
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135 {
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136 ExecuteInternal(1);
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137
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138 int top = lua_gettop(context_.lua_);
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139 if (lua_isstring(context_.lua_, top))
997
1b1d51e9f1a2 return Json from Lua
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140 {
1448
3f7722179467 refactoring: GetJson in Lua
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141 result = lua_tostring(context_.lua_, top);
1010
160dfe770618 refactoring
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142 }
997
1b1d51e9f1a2 return Json from Lua
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143 else
1b1d51e9f1a2 return Json from Lua
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144 {
1583
9ea3d082b064 got rid of custom exceptions
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145 throw OrthancException(ErrorCode_LuaReturnsNoString);
997
1b1d51e9f1a2 return Json from Lua
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146 }
1b1d51e9f1a2 return Json from Lua
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147 }
1959
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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parents: 1900
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148
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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parents: 1900
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149
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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diff changeset
150 void LuaFunctionCall::PushStringMap(const std::map<std::string, std::string>& value)
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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151 {
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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152 Json::Value json = Json::objectValue;
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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153
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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parents: 1900
diff changeset
154 for (std::map<std::string, std::string>::const_iterator
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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diff changeset
155 it = value.begin(); it != value.end(); ++it)
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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156 {
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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diff changeset
157 json[it->first] = it->second;
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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diff changeset
158 }
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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parents: 1900
diff changeset
159
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1900
diff changeset
160 PushJson(json);
45c4387a379c Access to the HTTP headers in the "IncomingHttpRequestFilter()" callback
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parents: 1900
diff changeset
161 }
2218
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
162
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
163
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
164 void LuaFunctionCall::PushDicom(const DicomMap& dicom)
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
165 {
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
166 DicomArray a(dicom);
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
167 PushDicom(a);
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
168 }
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
169
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
170
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
171 void LuaFunctionCall::PushDicom(const DicomArray& dicom)
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
172 {
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
173 Json::Value value = Json::objectValue;
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
174
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
175 for (size_t i = 0; i < dicom.GetSize(); i++)
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
176 {
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
177 const DicomValue& v = dicom.GetElement(i).GetValue();
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
178 std::string s = (v.IsNull() || v.IsBinary()) ? "" : v.GetContent();
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
179 value[dicom.GetElement(i).GetTag().Format()] = s;
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
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parents: 1959
diff changeset
180 }
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
181
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
182 PushJson(value);
3eefb84ac0bd dynamically fix outgoing C-Find requests using "OutgoingFindRequestFilter()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1959
diff changeset
183 }
4105
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
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parents: 4044
diff changeset
184
4300
b30a8de92ad9 abi continued
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diff changeset
185 void LuaFunctionCall::Execute()
b30a8de92ad9 abi continued
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
186 {
b30a8de92ad9 abi continued
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4119
diff changeset
187 ExecuteInternal(0);
b30a8de92ad9 abi continued
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parents: 4119
diff changeset
188 }
b30a8de92ad9 abi continued
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parents: 4119
diff changeset
189
4105
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
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parents: 4044
diff changeset
190
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
191 #if ORTHANC_ENABLE_DCMTK == 1
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
192 void LuaFunctionCall::ExecuteToDicom(DicomMap& target)
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
193 {
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
194 Json::Value output;
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
195 ExecuteToJson(output, true /* keep strings */);
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
196
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
197 target.Clear();
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
198
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
199 if (output.type() == Json::arrayValue &&
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
200 output.size() == 0)
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
201 {
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
202 // This case happens for empty tables
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
203 return;
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
204 }
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
205
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
206 if (output.type() != Json::objectValue)
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
207 {
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
208 throw OrthancException(ErrorCode_LuaBadOutput,
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
209 "Lua: The script must return a table");
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
210 }
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
211
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
212 Json::Value::Members members = output.getMemberNames();
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
213
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
214 for (size_t i = 0; i < members.size(); i++)
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
215 {
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
216 if (output[members[i]].type() != Json::stringValue)
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
217 {
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
218 throw OrthancException(ErrorCode_LuaBadOutput,
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
219 "Lua: The script must return a table "
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
220 "mapping names of DICOM tags to strings");
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
221 }
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
222
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
223 DicomTag tag(FromDcmtkBridge::ParseTag(members[i]));
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
224 target.SetValue(tag, output[members[i]].asString(), false);
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
225 }
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
226 }
c02a2d9efbc2 move FromDcmtkBridge::ExecuteToDicom() to LuaFunctionCall, to remove dependency of DCMTK on Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4044
diff changeset
227 #endif
386
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
228 }