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1 | <?php |
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2 | |||
3 | namespace LegalThings; |
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4 | |||
5 | use LegalThings\DataEnricher\Node; |
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6 | use LegalThings\DataEnricher\Processor; |
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7 | use Jasny\DotKey; |
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8 | |||
9 | /** |
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10 | * Enrich objects by processing special properties. |
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11 | */ |
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12 | class DataEnricher |
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13 | { |
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14 | /** |
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15 | * Default processors |
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16 | * @var array |
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17 | */ |
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18 | public static $defaultProcessors = [ |
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19 | '<ifset>' => Processor\IfSet::class, |
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20 | '<ref>' => Processor\Reference::class, |
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21 | '<switch>' => Processor\SwitchChoose::class, |
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22 | '<merge>' => Processor\Merge::class, |
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23 | '<tpl>' => Processor\Mustache::class, |
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24 | '<src>' => Processor\Http::class, |
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25 | '<jmespath>' => Processor\JmesPath::class, |
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26 | '<transformation>' => Processor\Transform::class, |
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27 | '<math>' => Processor\Math::class, |
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28 | '<enrich>' => Processor\Enrich::class, |
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29 | '<dateformat>' => Processor\DateFormat::class, |
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30 | |||
31 | // Deprecated |
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32 | '_ref' => Processor\Reference::class, |
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33 | '_switch' => Processor\SwitchChoose::class, |
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34 | '_src' => Processor\Http::class, |
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35 | '_merge' => Processor\Merge::class, |
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36 | '_jmespath' => Processor\JmesPath::class, |
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37 | '_tpl' => Processor\Mustache::class, |
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38 | '_transformation' => Processor\Transform::class |
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39 | ]; |
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40 | |||
41 | |||
42 | /** |
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43 | * Processors, applied in specified order. |
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44 | * |
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45 | * @var DataEnricher\Processor[] |
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46 | */ |
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47 | public $processors; |
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48 | |||
49 | |||
50 | /** |
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51 | * Class constructor |
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52 | */ |
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53 | 3 | public function __construct() |
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54 | { |
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55 | 3 | foreach (static::$defaultProcessors as $property => $processor) { |
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56 | 3 | if (is_string($processor)) { |
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57 | 3 | $processor = new $processor($property); |
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58 | 3 | } |
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59 | |||
60 | 3 | $this->processors[] = $processor; |
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61 | 3 | } |
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62 | 3 | } |
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63 | |||
64 | /** |
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65 | * Create processors |
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66 | * |
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67 | * @param object $source Data source |
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68 | * @param array|object $target Target or dot key path |
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69 | * @return Processor[] |
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70 | */ |
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71 | protected function getProcessorsFor($source, $target) |
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72 | { |
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73 | $processors = []; |
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74 | |||
75 | foreach ($this->processors as $processor) { |
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76 | $processors[] = $processor->withSourceAndTarget($source, $target); |
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77 | } |
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78 | |||
79 | return $processors; |
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80 | } |
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81 | |||
82 | |||
83 | /** |
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84 | * Apply processing instructions |
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85 | * |
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86 | * @param array|object|string $target Target or dot key path |
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87 | * @param object $source Data source |
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88 | */ |
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89 | 2 | public function applyTo($target, $source = null) |
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90 | { |
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91 | 2 | if (!isset($source)) { |
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92 | 2 | $source = $target; |
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93 | 2 | } |
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94 | |||
95 | 2 | if (!is_object($source)) { |
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96 | 2 | throw new \Exception("Data enricher on works on an object, not on a " . gettype($source)); |
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97 | } |
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98 | |||
99 | if (is_string($target)) { |
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100 | $target = DotKey::on($source)->get($target); |
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101 | } |
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102 | |||
103 | $nodes = $this->findNodes($target); |
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104 | $processors = $this->getProcessorsFor($source, $target); |
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105 | |||
106 | foreach ($nodes as $node) { |
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107 | foreach ($processors as $processor) { |
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108 | $node->apply($processor); |
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109 | } |
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110 | } |
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111 | |||
112 | $this->applyNodeResults($target); |
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113 | } |
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114 | |||
115 | /** |
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116 | * Find nodes that have processing instructions |
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117 | * |
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118 | * @param array|object $target |
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119 | * @return array |
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120 | */ |
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121 | public function findNodes(&$target) |
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122 | { |
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123 | $nodes = []; |
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124 | |||
125 | foreach ($target as $key => &$value) { |
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126 | if (is_array($value) || (is_object($value) && !$value instanceof Node)) { |
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127 | $nodes = array_merge($nodes, $this->findNodes($value)); |
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128 | } |
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129 | |||
130 | if ($value instanceof \stdClass && $this->hasProcessorProperty($value)) { |
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131 | $value = new Node($value); |
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132 | $nodes[] = $value; |
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133 | } |
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134 | } |
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135 | |||
136 | return $nodes; |
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137 | } |
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138 | |||
139 | /** |
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140 | * Check if object has at leas one process property |
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141 | * |
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142 | * @param \stdClass $value |
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143 | * @param Processor[] $processors |
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144 | * @return boolean |
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145 | */ |
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146 | protected function hasProcessorProperty($value) |
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147 | { |
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148 | $processorProps = array_map(function ($processor) { |
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149 | return $processor->getProperty(); |
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150 | }, $this->processors); |
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151 | |||
152 | $valueProps = array_keys(get_object_vars($value)); |
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153 | return count(array_intersect($valueProps, $processorProps)) > 0; |
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154 | } |
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155 | |||
156 | /** |
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157 | * Replace nodes with their results |
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158 | * |
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159 | * @param array|object $target |
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160 | */ |
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161 | View Code Duplication | protected function applyNodeResults(&$target) |
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162 | { |
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163 | foreach ($target as &$value) { |
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164 | if ($value instanceof Node) { |
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165 | $value = $value->getResult(); |
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166 | } elseif (is_array($value) || is_object($value)) { |
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167 | $this->applyNodeResults($value); |
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168 | } |
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169 | } |
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170 | } |
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171 | } |
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172 |
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.