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| <li class="navelem"><a class="el" href="dir_f51fe74ea6bc2b1b900619895eaa63be.html">iceberg</a></li><li class="navelem"><a class="el" href="dir_7a408d6a2d81183c3eacfe2576f2a2aa.html">util</a></li> </ul> |
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| <div class="headertitle"><div class="title">config.h</div></div> |
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| <div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div> |
| <div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div> |
| <div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div> |
| <div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * distributed with this work for additional information</span></div> |
| <div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div> |
| <div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div> |
| <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * "License"); you may not use this file except in compliance</span></div> |
| <div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * with the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div> |
| <div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * software distributed under the License is distributed on an</span></div> |
| <div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div> |
| <div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * KIND, either express or implied. See the License for the</span></div> |
| <div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * specific language governing permissions and limitations</span></div> |
| <div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * under the License.</span></div> |
| <div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> */</span></div> |
| <div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#pragma once</span></div> |
| <div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div> |
| <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <format></span></div> |
| <div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include <functional></span></div> |
| <div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include <string></span></div> |
| <div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include <unordered_map></span></div> |
| <div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div> |
| <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "<a class="code" href="exception_8h.html">iceberg/exception.h</a>"</span></div> |
| <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include "iceberg/util/macros.h"</span></div> |
| <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include "iceberg/util/string_util.h"</span></div> |
| <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div> |
| <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="keyword">namespace </span>iceberg {</div> |
| <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">namespace </span>internal {</div> |
| <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="comment">// Default conversion functions</span></div> |
| <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keyword">template</span> <<span class="keyword">typename</span> U></div> |
| <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span>std::string DefaultToString(<span class="keyword">const</span> U& val) {</div> |
| <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keywordflow">if</span> <span class="keyword">constexpr</span> ((std::is_signed_v<U> && std::is_integral_v<U>) ||</div> |
| <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> std::is_floating_point_v<U>) {</div> |
| <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordflow">return</span> std::to_string(val);</div> |
| <div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> <span class="keyword">constexpr</span> (std::is_same_v<U, bool>) {</div> |
| <div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordflow">return</span> val ? <span class="stringliteral">"true"</span> : <span class="stringliteral">"false"</span>;</div> |
| <div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> <span class="keyword">constexpr</span> (std::is_same_v<U, std::string> ||</div> |
| <div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> std::is_same_v<U, std::string_view>) {</div> |
| <div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">return</span> val;</div> |
| <div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordflow">throw</span> IcebergError(</div> |
| <div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> std::format(<span class="stringliteral">"Explicit to_str() is required for {}"</span>, <span class="keyword">typeid</span>(U).name()));</div> |
| <div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> }</div> |
| <div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span>}</div> |
| <div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div> |
| <div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="keyword">template</span> <<span class="keyword">typename</span> U></div> |
| <div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span>U DefaultFromString(<span class="keyword">const</span> std::string& val) {</div> |
| <div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">if</span> <span class="keyword">constexpr</span> (std::is_same_v<U, std::string>) {</div> |
| <div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">return</span> val;</div> |
| <div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> <span class="keyword">constexpr</span> (std::is_same_v<U, bool>) {</div> |
| <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">return</span> val == <span class="stringliteral">"true"</span>;</div> |
| <div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> <span class="keyword">constexpr</span> ((std::is_signed_v<U> && std::is_integral_v<U>) ||</div> |
| <div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> std::is_floating_point_v<U>) {</div> |
| <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> ICEBERG_ASSIGN_OR_THROW(<span class="keyword">auto</span> res, StringUtils::ParseNumber<U>(val));</div> |
| <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordflow">return</span> res;</div> |
| <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">throw</span> IcebergError(</div> |
| <div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> std::format(<span class="stringliteral">"Explicit from_str() is required for {}"</span>, <span class="keyword">typeid</span>(U).name()));</div> |
| <div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> }</div> |
| <div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span>}</div> |
| <div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span>} <span class="comment">// namespace internal</span></div> |
| <div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div> |
| <div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span><span class="keyword">template</span> <<span class="keyword">class</span> ConcreteConfig></div> |
| <div class="foldopen" id="foldopen00067" data-start="{" data-end="};"> |
| <div class="line"><a id="l00067" name="l00067"></a><span class="lineno"><a class="line" href="classiceberg_1_1ConfigBase.html"> 67</a></span><span class="keyword">class </span><a class="code hl_class" href="classiceberg_1_1ConfigBase.html">ConfigBase</a> {</div> |
| <div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">public</span>:</div> |
| <div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="foldopen" id="foldopen00070" data-start="{" data-end="};"> |
| <div class="line"><a id="l00070" name="l00070"></a><span class="lineno"><a class="line" href="classiceberg_1_1ConfigBase_1_1Entry.html"> 70</a></span> <span class="keyword">class </span><a class="code hl_class" href="classiceberg_1_1ConfigBase_1_1Entry.html">Entry</a> {</div> |
| <div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keyword">public</span>:</div> |
| <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <a class="code hl_class" href="classiceberg_1_1ConfigBase_1_1Entry.html">Entry</a>(std::string key, T val,</div> |
| <div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> std::function<std::string(<span class="keyword">const</span> T&)> to_str = internal::DefaultToString<T>,</div> |
| <div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> std::function<T(<span class="keyword">const</span> std::string&)> from_str = internal::DefaultFromString<T>)</div> |
| <div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> : key_{std::move(key)},</div> |
| <div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> default_{std::move(val)},</div> |
| <div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> to_str_{std::move(to_str)},</div> |
| <div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> from_str_{std::move(from_str)} {}</div> |
| <div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div> |
| <div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keyword">private</span>:</div> |
| <div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keyword">const</span> std::string key_;</div> |
| <div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keyword">const</span> T default_;</div> |
| <div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">const</span> std::function<std::string(<span class="keyword">const</span> T&)> to_str_;</div> |
| <div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keyword">const</span> std::function<T(<span class="keyword">const</span> std::string&)> from_str_;</div> |
| <div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> </div> |
| <div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">friend</span> <a class="code hl_class" href="classiceberg_1_1ConfigBase.html">ConfigBase</a>;</div> |
| <div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">friend</span> ConcreteConfig;</div> |
| <div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> </div> |
| <div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keyword">public</span>:</div> |
| <div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">const</span> std::string& key()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> key_; }</div> |
| <div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </div> |
| <div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keyword">const</span> T& value()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> default_; }</div> |
| <div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> };</div> |
| </div> |
| <div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> </div> |
| <div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <a class="code hl_class" href="classiceberg_1_1ConfigBase.html">ConfigBase</a>& Set(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1ConfigBase_1_1Entry.html">Entry<T></a>& entry, <span class="keyword">const</span> T& val) {</div> |
| <div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> configs_[entry.key_] = entry.to_str_(val);</div> |
| <div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div> |
| <div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> }</div> |
| <div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> </div> |
| <div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <a class="code hl_class" href="classiceberg_1_1ConfigBase.html">ConfigBase</a>& Unset(<span class="keyword">const</span> Entry<T>& entry) {</div> |
| <div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> configs_.erase(entry.key_);</div> |
| <div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div> |
| <div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> }</div> |
| <div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> </div> |
| <div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> ConfigBase& Reset() {</div> |
| <div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> configs_.clear();</div> |
| <div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div> |
| <div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> }</div> |
| <div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div> |
| <div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> T Get(<span class="keyword">const</span> Entry<T>& entry)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keyword">auto</span> iter = configs_.find(entry.key_);</div> |
| <div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordflow">return</span> iter != configs_.cend() ? entry.from_str_(iter->second) : entry.default_;</div> |
| <div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> }</div> |
| <div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> </div> |
| <div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="keyword">const</span> std::unordered_map<std::string, std::string>& configs()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> configs_; }</div> |
| <div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div> |
| <div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> std::unordered_map<std::string, std::string>& mutable_configs() { <span class="keywordflow">return</span> configs_; }</div> |
| <div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> </div> |
| <div class="foldopen" id="foldopen00125" data-start="{" data-end="}"> |
| <div class="line"><a id="l00125" name="l00125"></a><span class="lineno"><a class="line" href="classiceberg_1_1ConfigBase.html#a78dc1c7d65af1e096a19fc77d2c9ed39"> 125</a></span> std::unordered_map<std::string, std::string> <a class="code hl_function" href="classiceberg_1_1ConfigBase.html#a78dc1c7d65af1e096a19fc77d2c9ed39">Extract</a>(std::string_view prefix)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> std::unordered_map<std::string, std::string> extracted;</div> |
| <div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& [key, value] : configs_) {</div> |
| <div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keywordflow">if</span> (key.starts_with(prefix)) {</div> |
| <div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> extracted[key.substr(prefix.length())] = value;</div> |
| <div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> }</div> |
| <div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> }</div> |
| <div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">return</span> extracted;</div> |
| <div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> }</div> |
| </div> |
| <div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> </div> |
| <div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="keyword">protected</span>:</div> |
| <div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> std::unordered_map<std::string, std::string> configs_;</div> |
| <div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span>};</div> |
| </div> |
| <div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> </div> |
| <div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span>} <span class="comment">// namespace iceberg</span></div> |
| <div class="ttc" id="aclassiceberg_1_1ConfigBase_1_1Entry_html"><div class="ttname"><a href="classiceberg_1_1ConfigBase_1_1Entry.html">iceberg::ConfigBase::Entry</a></div><div class="ttdef"><b>Definition</b> config.h:70</div></div> |
| <div class="ttc" id="aclassiceberg_1_1ConfigBase_html"><div class="ttname"><a href="classiceberg_1_1ConfigBase.html">iceberg::ConfigBase</a></div><div class="ttdef"><b>Definition</b> config.h:67</div></div> |
| <div class="ttc" id="aclassiceberg_1_1ConfigBase_html_a78dc1c7d65af1e096a19fc77d2c9ed39"><div class="ttname"><a href="classiceberg_1_1ConfigBase.html#a78dc1c7d65af1e096a19fc77d2c9ed39">iceberg::ConfigBase::Extract</a></div><div class="ttdeci">std::unordered_map< std::string, std::string > Extract(std::string_view prefix) const</div><div class="ttdoc">Extracts the prefix from the configuration.</div><div class="ttdef"><b>Definition</b> config.h:125</div></div> |
| <div class="ttc" id="aexception_8h_html"><div class="ttname"><a href="exception_8h.html">exception.h</a></div></div> |
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