1 | |
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2 | /*! |
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3 | \file |
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4 | \brief Bayesian Models (bm) that use Bayes rule to learn from observations |
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5 | \author Vaclav Smidl. |
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6 | |
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7 | ----------------------------------- |
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8 | BDM++ - C++ library for Bayesian Decision Making under Uncertainty |
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9 | |
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10 | Using IT++ for numerical operations |
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11 | ----------------------------------- |
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12 | */ |
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13 | |
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14 | #ifndef root_H |
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15 | #define root_H |
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16 | |
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17 | #include <string> |
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18 | #include <bitset> |
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19 | |
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20 | #include "itpp_ext.h" |
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21 | #include "bdmerror.h" |
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22 | |
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23 | #ifdef MEX |
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24 | #include "base/libconfig/lib/libconfig.h++" |
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25 | // TODO DODELAT A NAHRADIT #include "base/libconfig_mex.h" |
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26 | #else |
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27 | #include "base/libconfig/lib/libconfig.h++" |
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28 | #endif |
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29 | |
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30 | |
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31 | using namespace libconfig; |
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32 | using namespace itpp; |
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33 | using namespace std; |
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34 | |
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35 | namespace bdm { |
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36 | |
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37 | //! auxiliary function for debugging |
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38 | void UI_DBG (const Setting &S, const string &spc, ostream &out ); |
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39 | |
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40 | |
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41 | //! level of details that will be logged to a logger |
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42 | // DULEZITE TODO - zde musi respektovat aktualne ulozene hodnoty, tj. nacist je, pak pridat |
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43 | // ty co se maji v tomto kroku ulozit a pak vse ulozit.. protoze to delame kompozici a ne dedenim DODELAT |
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44 | // ALE HOUBY, TAKHLE TO NEJDE, musime nechat jako samostatny objekt, kazda uroven tedy zvlast, |
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45 | // jednoznacne jmeno atd.. |
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46 | // |
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47 | //! information about connection to a logger |
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48 | template<class T> class logged_options { |
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49 | private: |
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50 | friend class UI; |
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51 | |
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52 | //! boolean flags related indicating which details will be logged to a logger |
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53 | bitset<32> values; |
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54 | |
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55 | virtual const Array<string> &names() const |
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56 | { |
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57 | return T::__option_names(); |
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58 | } |
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59 | |
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60 | public: |
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61 | |
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62 | bool any() const |
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63 | { |
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64 | return values.any(); |
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65 | } |
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66 | |
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67 | bool operator [] (const enum T::possible_options &option ) const |
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68 | { |
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69 | return values[option]; |
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70 | } |
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71 | |
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72 | bitset<32>::reference operator [] (const enum T::possible_options &option ) |
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73 | { |
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74 | return values[option]; |
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75 | } |
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76 | }; |
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77 | |
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78 | // MUZEME INTERNE POUZIVAT ENUMY, A KLIDNE MENIT JEJICH PORADI, DIKY TOMUHLE MAKRU SE VZDY NAMAPUJI NA TY SPRAVNE STRINGY |
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79 | #define LOG_LEVEL(CLASSNAME,...) private: friend class logged_options<CLASSNAME>; static const Array<string> &__option_names() { static const Array<string> option_names( "{"#__VA_ARGS__"}" ); return option_names; }; public: enum possible_options { __VA_ARGS__ }; logged_options<CLASSNAME> log_level; |
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80 | |
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81 | //forward declaration |
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82 | class logger; |
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83 | |
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84 | //! information about connection to a logger |
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85 | class log_record { |
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86 | public: |
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87 | //!remember which logger is registered |
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88 | logger &L; |
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89 | //! vector of log IDs - one element for each entry |
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90 | ivec ids; |
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91 | |
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92 | //!default constructor |
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93 | log_record ( logger &L0 ) : L ( L0 ), ids ( 0 ) {} |
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94 | }; |
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95 | |
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96 | //! Root class of BDM objects |
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97 | class root { |
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98 | protected: |
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99 | //! record of connections to the logger |
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100 | log_record* logrec; |
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101 | |
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102 | //! It is necessary to allow calling of from_setting and to_setting within the UI class |
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103 | friend class UI; |
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104 | |
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105 | /*! |
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106 | \brief Read instance properties according the data stored in the Setting structure. |
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107 | It has to be called only through UI class, therefore it is protected |
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108 | |
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109 | At the begining of this method, it is obligatory to call |
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110 | the corresponding base::from_setting method. Sometimes, there can be |
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111 | an exception from this rule. If so, the programmer is encouraged |
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112 | to describe the reasons for this exception in the documentation in detail. |
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113 | |
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114 | Then, all the configuration components should be read through the UI mechanism. |
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115 | Those with UI::SettingPresence set to optional shoud have their defaults fulfilled |
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116 | within the body of this method. |
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117 | |
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118 | For instance, declaring a class \c trunk derived from our #root class, |
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119 | the implementation of the from_setting method should look like this |
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120 | |
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121 | \code |
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122 | |
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123 | public trunk : public root { |
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124 | |
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125 | anytype xxx, yyy; |
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126 | |
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127 | virtual void from_setting ( const Setting &set ) { |
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128 | root::from_setting( set ); |
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129 | |
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130 | UI::get ( xxx, set, "xxx", UI::compulsory ); |
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131 | |
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132 | if ( !UI::get ( yyy, set, "yyy", UI::optional ) ) { |
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133 | ... // here, it is necessary to set the default of attribute yyy |
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134 | } |
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135 | |
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136 | ... // another stuff related to trunk class |
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137 | } |
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138 | |
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139 | ... // other members of this class |
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140 | }; |
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141 | |
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142 | \endcode |
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143 | */ |
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144 | virtual void from_setting ( const Setting &set ) { |
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145 | } |
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146 | |
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147 | /*! |
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148 | \brief Save all the instance properties into the Setting structure. |
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149 | It has to be called only through UI class, therefore it is protected |
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150 | |
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151 | The only obligatory rule concerning the body of this method is to call |
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152 | the corresponding base::to_setting method first. Sometimes, there can |
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153 | be an exception from this rule. If so, the programmer is encouraged |
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154 | to describe the reasons for this exception in the documentation in detail. |
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155 | |
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156 | For instance, declaring |
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157 | a class \c trunk derived from our #root class, the implementation of |
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158 | the to_setting method should look like this |
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159 | |
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160 | \code |
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161 | public trunk : public root { |
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162 | |
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163 | anytype xxx; |
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164 | |
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165 | virtual void to_setting ( const Setting &set ) { |
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166 | root::to_setting( set ); |
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167 | |
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168 | UI::save ( xxx, set, "xxx" ); |
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169 | |
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170 | ... // another stuff related directly to trunk class |
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171 | |
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172 | } |
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173 | |
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174 | ... // other members of this class |
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175 | |
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176 | }; |
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177 | |
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178 | \endcode |
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179 | */ |
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180 | virtual void to_setting ( Setting &set ) const { |
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181 | } |
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182 | |
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183 | public: |
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184 | enum possible_options{}; |
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185 | //!default constructor |
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186 | root() : logrec ( NULL ) {}; |
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187 | |
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188 | //! make sure this is a virtual object |
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189 | virtual ~root() { |
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190 | if ( logrec ) delete logrec; |
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191 | } |
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192 | |
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193 | //! Returns basic textual info about the current instance |
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194 | virtual string to_string() const { |
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195 | Config C; |
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196 | Setting &set=C.getRoot(); |
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197 | this->to_setting(set); |
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198 | ostringstream os; |
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199 | UI_DBG(set, "", os); |
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200 | return os.str(); |
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201 | } |
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202 | //! Register itself in a logger, i.e. allocate space for data from this class |
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203 | //! The level of details (parameter \c level ) is individual for each class. |
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204 | virtual void log_register ( logger &L, const string &prefix ) { |
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205 | logrec = new log_record ( L ); |
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206 | } |
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207 | |
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208 | //! Write current information into the given logger |
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209 | virtual void log_write() const { |
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210 | } |
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211 | |
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212 | /*! |
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213 | \brief This method checks that all internal structures has been set up correctly. |
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214 | |
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215 | It is called automatically after the call of the #from_setting method by the mechanism of the UI class. |
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216 | However, it can be called in any other situation to assure the correctness of an instance. |
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217 | |
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218 | The only obligatory rule concerning the body of this method is to call |
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219 | the corresponding base::validate method first. Sometimes, there can be |
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220 | an exception from this rule. If so, the programmer is encouraged |
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221 | to describe the reasons for this exception in the documentation in detail. |
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222 | |
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223 | Then, only those checks which are not implemented in the base method |
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224 | are implemented here. For instance, declaring a class \c trunk derived from our |
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225 | #root class, the implementation of the method validate should |
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226 | look like this |
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227 | |
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228 | \code |
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229 | public trunk : public root { |
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230 | |
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231 | virtual void validate ( ) { |
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232 | root::validate( ); |
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233 | |
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234 | ... // checks related directly to trunk class |
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235 | } |
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236 | |
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237 | ... // other members of this class |
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238 | |
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239 | }; |
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240 | |
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241 | \endcode |
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242 | |
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243 | */ |
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244 | virtual void validate() { |
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245 | } |
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246 | |
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247 | //! Virtual method providing deep copy of instances |
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248 | virtual root* _copy() const NOT_IMPLEMENTED(NULL); |
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249 | |
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250 | }; |
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251 | |
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252 | }; //namespace |
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253 | #endif // root_H |
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