1 | // |
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2 | // You received this file as part of RRLib |
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3 | // Robotics Research Library |
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4 | // |
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5 | // Copyright (C) Finroc GbR (finroc.org) |
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6 | // |
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7 | // This program is free software; you can redistribute it and/or modify |
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8 | // it under the terms of the GNU General Public License as published by |
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9 | // the Free Software Foundation; either version 2 of the License, or |
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10 | // (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, |
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13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | // GNU 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 General Public License along |
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18 | // with this program; if not, write to the Free Software Foundation, Inc., |
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19 | // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 | // |
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21 | //---------------------------------------------------------------------- |
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22 | /*!\file rrlib/rtti_conversion/tRegisteredConversionOperation.cpp |
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23 | * |
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24 | * \author Max Reichardt |
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25 | * |
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26 | * \date 2016-07-15 |
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27 | * |
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28 | */ |
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29 | //---------------------------------------------------------------------- |
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30 | #include "rrlib/rtti_conversion/tRegisteredConversionOperation.h" |
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31 | |
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32 | //---------------------------------------------------------------------- |
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33 | // External includes (system with <>, local with "") |
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34 | //---------------------------------------------------------------------- |
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35 | #include "rrlib/thread/tLock.h" |
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36 | |
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37 | //---------------------------------------------------------------------- |
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38 | // Internal includes with "" |
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39 | //---------------------------------------------------------------------- |
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40 | #include "rrlib/rtti_conversion/tConversionOption.h" |
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41 | #include "rrlib/rtti_conversion/tStaticCastOperation.h" |
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42 | |
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43 | //---------------------------------------------------------------------- |
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44 | // Debugging |
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45 | //---------------------------------------------------------------------- |
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46 | #include <cassert> |
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47 | |
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48 | //---------------------------------------------------------------------- |
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49 | // Namespace usage |
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50 | //---------------------------------------------------------------------- |
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51 | |
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52 | //---------------------------------------------------------------------- |
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53 | // Namespace declaration |
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54 | //---------------------------------------------------------------------- |
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55 | namespace rrlib |
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56 | { |
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57 | namespace rtti |
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58 | { |
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59 | namespace conversion |
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60 | { |
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61 | |
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62 | //---------------------------------------------------------------------- |
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63 | // Forward declarations / typedefs / enums |
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64 | //---------------------------------------------------------------------- |
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65 | |
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66 | //---------------------------------------------------------------------- |
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67 | // Const values |
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68 | //---------------------------------------------------------------------- |
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69 | const char* tRegisteredConversionOperation::cSTATIC_CAST_NAME = "static_cast"; |
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70 | |
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71 | //---------------------------------------------------------------------- |
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72 | // Implementation |
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73 | //---------------------------------------------------------------------- |
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74 | |
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75 | tRegisteredConversionOperation::tRegisteredConversionOperation(util::tManagedConstCharPointer name, const tSupportedTypes& supported_source_types, const tSupportedTypes& supported_destination_types, |
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76 | const tConversionOption* single_conversion_option, const tParameterDefinition& parameter, const tRegisteredConversionOperation* not_usually_combined_with) : |
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77 | name(std::move(name)), |
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78 | supported_source_types(supported_source_types), |
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79 | supported_destination_types(supported_destination_types), |
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80 | parameter(parameter), |
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81 | single_conversion_option(single_conversion_option), |
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82 | not_usually_combined_with_handle(not_usually_combined_with ? not_usually_combined_with->GetHandle() : 0xFFFF) |
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83 | { |
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84 | if (parameter && (!(parameter.GetType().GetTypeTraits() & trait_flags::cIS_STRING_SERIALIZABLE))) |
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85 | { |
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86 | throw std::runtime_error(std::string("Conversion operation: '") + this->name.Get() + "'. Parameters have to be string serializable."); |
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87 | } |
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88 | handle = static_cast<decltype(handle)>(tRegisteredConversionOperation::RegisteredOperations().operations.Add(this)); |
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89 | } |
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90 | |
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91 | tRegisteredConversionOperation::tRegisteredConversionOperation() : |
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92 | name(cSTATIC_CAST_NAME, false), |
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93 | supported_source_types(tSupportedTypeFilter::STATIC_CAST), |
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94 | supported_destination_types(tSupportedTypeFilter::STATIC_CAST), |
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95 | parameter(), |
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96 | single_conversion_option(nullptr), |
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97 | handle(-1), |
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98 | not_usually_combined_with_handle(0xFFFF) |
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99 | { |
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100 | handle = static_cast<decltype(handle)>(tRegisteredConversionOperation::RegisteredOperations().operations.Add(this)); |
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101 | } |
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102 | |
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103 | tRegisteredConversionOperation::~tRegisteredConversionOperation() |
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104 | { |
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105 | } |
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106 | |
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107 | void tRegisteredConversionOperation::AutoDelete() |
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108 | { |
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109 | tRegisteredConversionOperation::tRegisteredOperations& registered_operations = tRegisteredConversionOperation::RegisteredOperations(); |
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110 | registered_operations.auto_delete.Emplace(this); |
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111 | } |
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112 | |
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113 | const tRegisteredConversionOperation* tRegisteredConversionOperation::Deserialize(rrlib::serialization::tInputStream& stream, bool throw_exception_if_not_found) |
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114 | { |
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115 | const tRegisteredConversionOperation* result = nullptr; |
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116 | if (tRegisteredConversionOperation::GetRegisteredOperations().operations.ReadEntry(stream, result)) |
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117 | { |
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118 | std::string name = stream.ReadString(); |
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119 | tRegisteredConversionOperation::tSupportedTypes source_types = tType(); |
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120 | tRegisteredConversionOperation::tSupportedTypes destination_types = tType(); |
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121 | stream >> source_types.filter; |
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122 | if (source_types.filter == tSupportedTypeFilter::SINGLE) |
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123 | { |
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124 | source_types.single_type = tType::GetType(stream.ReadShort()); |
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125 | } |
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126 | stream >> destination_types.filter; |
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127 | if (destination_types.filter == tSupportedTypeFilter::SINGLE) |
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128 | { |
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129 | destination_types.single_type = tType::GetType(stream.ReadShort()); |
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130 | } |
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131 | |
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132 | // Find matching conversion operation |
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133 | if (name == cSTATIC_CAST_NAME) |
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134 | { |
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135 | return &tStaticCastOperation::GetInstance(); |
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136 | } |
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137 | |
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138 | tRegisteredConversionOperation::tRegisteredOperations& registered_operations = tRegisteredConversionOperation::RegisteredOperations(); |
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139 | for (auto & operation : registered_operations.operations) |
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140 | { |
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141 | if (operation->supported_source_types.filter == source_types.filter && operation->supported_source_types.single_type == source_types.single_type && operation->supported_destination_types.filter == destination_types.filter && operation->supported_destination_types.single_type == destination_types.single_type && name == operation->Name()) |
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142 | { |
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143 | return operation; |
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144 | } |
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145 | } |
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146 | if (throw_exception_if_not_found) |
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147 | { |
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148 | throw std::runtime_error("Encoded registered conversion operation not found"); |
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149 | } |
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150 | } |
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151 | return result; |
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152 | } |
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153 | |
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154 | std::pair<const tRegisteredConversionOperation*, bool> tRegisteredConversionOperation::Find(const std::string& name) |
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155 | { |
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156 | std::pair<const tRegisteredConversionOperation*, bool> result(nullptr, false); |
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157 | if (name == cSTATIC_CAST_NAME) |
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158 | { |
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159 | result.first = &tStaticCastOperation::GetInstance(); |
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160 | return result; |
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161 | } |
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162 | |
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163 | tRegisteredConversionOperation::tRegisteredOperations& registered_operations = tRegisteredConversionOperation::RegisteredOperations(); |
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164 | for (auto & operation : registered_operations.operations) |
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165 | { |
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166 | if (name == operation->Name()) |
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167 | { |
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168 | if (!result.first) |
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169 | { |
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170 | result.first = operation; |
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171 | } |
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172 | else |
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173 | { |
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174 | result.second = true; |
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175 | return result; |
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176 | } |
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177 | } |
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178 | } |
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179 | return result; |
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180 | } |
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181 | |
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182 | const tRegisteredConversionOperation& tRegisteredConversionOperation::Find(const std::string& name, const tType& source_type, const tType& destination_type) |
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183 | { |
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184 | const tRegisteredConversionOperation* result = nullptr; |
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185 | if (name == cSTATIC_CAST_NAME) |
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186 | { |
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187 | return tStaticCastOperation::GetInstance(); |
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188 | } |
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189 | |
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190 | tRegisteredConversionOperation::tRegisteredOperations& registered_operations = tRegisteredConversionOperation::RegisteredOperations(); |
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191 | for (auto & operation : registered_operations.operations) |
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192 | { |
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193 | if (name == operation->Name()) |
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194 | { |
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195 | auto option = operation->GetConversionOption((!source_type) && operation->SupportedSourceTypes().filter == tSupportedTypeFilter::SINGLE ? operation->SupportedSourceTypes().single_type : source_type, |
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196 | (!destination_type) && operation->SupportedDestinationTypes().filter == tSupportedTypeFilter::SINGLE ? operation->SupportedDestinationTypes().single_type : destination_type, nullptr); |
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197 | if (option.type != tConversionOptionType::NONE) |
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198 | { |
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199 | if (result) |
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200 | { |
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201 | throw std::runtime_error("Lookup of registered conversion operation " + name + " is ambiguous"); |
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202 | } |
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203 | result = operation; |
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204 | } |
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205 | } |
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206 | } |
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207 | if (!result) |
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208 | { |
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209 | throw std::runtime_error("Lookup of registered conversion operation " + name + " with specified types failed"); |
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210 | } |
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211 | |
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212 | return *result; |
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213 | } |
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214 | |
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215 | tConversionOption tRegisteredConversionOperation::GetConversionOption(const tType& source_type, const tType& destination_type, const tGenericObject* parameter) const |
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216 | { |
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217 | if ((!source_type) || (!destination_type)) |
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218 | { |
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219 | throw std::invalid_argument("Source type and destination type must be specified"); |
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220 | } |
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221 | if (!single_conversion_option) |
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222 | { |
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223 | throw std::logic_error("Method must be overridden if no single conversion option is specified"); |
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224 | } |
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225 | if (single_conversion_option->source_type == source_type && single_conversion_option->destination_type == destination_type) |
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226 | { |
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227 | return *single_conversion_option; |
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228 | } |
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229 | return tConversionOption(); |
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230 | } |
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231 | |
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232 | tRegisteredConversionOperation::tRegisteredOperations& tRegisteredConversionOperation::RegisteredOperations() |
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233 | { |
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234 | static tRegisteredOperations operations; |
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235 | return operations; |
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236 | } |
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237 | |
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238 | serialization::tOutputStream& operator << (serialization::tOutputStream& stream, const tRegisteredConversionOperation& operation) |
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239 | { |
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240 | if (tRegisteredConversionOperation::GetRegisteredOperations().operations.WriteEntry(stream, operation.GetHandle())) |
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241 | { |
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242 | stream << operation.Name() << operation.SupportedSourceTypes().filter; |
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243 | if (operation.SupportedSourceTypes().filter == tSupportedTypeFilter::SINGLE) |
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244 | { |
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245 | stream << operation.SupportedSourceTypes().single_type; |
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246 | } |
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247 | stream << operation.SupportedDestinationTypes().filter; |
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248 | if (operation.SupportedDestinationTypes().filter == tSupportedTypeFilter::SINGLE) |
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249 | { |
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250 | stream << operation.SupportedDestinationTypes().single_type; |
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251 | } |
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252 | } |
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253 | |
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254 | return stream; |
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255 | } |
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256 | |
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257 | //---------------------------------------------------------------------- |
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258 | // End of namespace declaration |
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259 | //---------------------------------------------------------------------- |
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260 | } |
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261 | } |
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262 | } |
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