Complex classes like Request often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Request, and based on these observations, apply Extract Interface, too.
1 | <?php |
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10 | class Request |
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11 | { |
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12 | use SingletonTrait; |
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13 | protected $server; |
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14 | protected $cookies; |
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15 | protected $upload; |
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16 | protected $header; |
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17 | protected $data; |
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18 | protected $raw = []; |
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19 | protected $query; |
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20 | private $isLoaded = false; |
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21 | |||
22 | 2 | public function init() |
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33 | |||
34 | /** |
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35 | * @return bool |
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36 | */ |
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37 | 1 | public function isLoaded() { |
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40 | |||
41 | /** |
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42 | * Método que devuelve las cabeceras de la petición |
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43 | * @return array |
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44 | */ |
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45 | 2 | private function parseHeaders() |
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49 | |||
50 | /** |
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51 | * Método que verifica si existe una cabecera concreta |
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52 | * @param $header |
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53 | * |
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54 | * @return boolean |
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55 | */ |
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56 | 2 | public function hasHeader($header) |
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60 | |||
61 | |||
62 | /** |
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63 | * Método que indica si una petición tiene cookies |
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64 | * @return boolean |
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65 | */ |
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66 | 1 | public function hasCookies() |
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70 | |||
71 | /** |
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72 | * Método que indica si una petición tiene cookies |
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73 | * @return boolean |
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74 | */ |
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75 | 1 | public function hasUpload() |
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79 | |||
80 | /** |
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81 | * Método que devuelve el TimeStamp de la petición |
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82 | * |
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83 | * @param boolean $formatted |
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84 | * |
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85 | * @return string |
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86 | */ |
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87 | public static function ts($formatted = false) |
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91 | |||
92 | 1 | public function getTs($formatted = false) |
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96 | |||
97 | /** |
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98 | * Método que devuelve el Método HTTP utilizado |
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99 | * @return string |
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100 | */ |
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101 | 3 | public function getMethod() |
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105 | |||
106 | /** |
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107 | * Método que devuelve una cabecera de la petición si existe |
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108 | * @param string $name |
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109 | * @param string $default |
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110 | * |
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111 | * @return string|null |
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112 | */ |
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113 | 1 | public static function header($name, $default = null) |
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117 | |||
118 | /** |
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119 | * @param string $name |
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120 | * @param string $default |
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121 | * @return string|null |
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122 | */ |
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123 | 1 | public function getHeader($name, $default = null) |
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133 | |||
134 | /** |
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135 | * Método que devuelve la url solicitada |
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136 | * @return string|null |
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137 | */ |
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138 | 1 | public static function requestUri() |
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142 | |||
143 | /** |
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144 | * @return string |
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145 | */ |
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146 | 8 | public function getRequestUri() |
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150 | |||
151 | /** |
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152 | * Método que devuelve el idioma de la petición |
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153 | * @return string |
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154 | */ |
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155 | public function getLanguage() |
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159 | |||
160 | /** |
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161 | * Método que determina si se ha solicitado un fichero |
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162 | * @return boolean |
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163 | */ |
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164 | 4 | public function isFile() |
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169 | |||
170 | /** |
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171 | * Get query params |
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172 | * |
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173 | * @param string $queryParams |
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174 | * |
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175 | * @return mixed |
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176 | */ |
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177 | public function getQuery($queryParams) |
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181 | |||
182 | /** |
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183 | * Get all query params |
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184 | * |
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185 | * @return mixed |
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186 | */ |
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187 | 2 | public function getQueryParams() |
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191 | |||
192 | /** |
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193 | * Método que devuelve un parámetro de la solicitud |
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194 | * @param string $param |
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195 | * |
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196 | * @return string|null |
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197 | */ |
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198 | public function get($param) |
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202 | |||
203 | /** |
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204 | * Método que devuelve todos los datos del Request |
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205 | * @return array |
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206 | */ |
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207 | 1 | public function getData() |
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211 | |||
212 | /** |
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213 | * @return array |
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214 | */ |
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215 | public function getRawData() { |
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218 | |||
219 | /** |
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220 | * Método que realiza una redirección a la url dada |
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221 | * @param string $url |
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222 | */ |
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223 | public function redirect($url = null) |
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232 | |||
233 | /** |
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234 | * Devuelve un parámetro de $_SERVER |
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235 | * @param string $param |
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236 | * |
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237 | * @return string|null |
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238 | */ |
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239 | 3 | public function getServer($param) |
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243 | |||
244 | /** |
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245 | * Devuelve el nombre del servidor |
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246 | * @return string|null |
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247 | */ |
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248 | public function getServerName() |
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252 | |||
253 | /** |
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254 | * Devuelve el protocolo de la conexión |
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255 | * @return string |
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256 | */ |
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257 | public function getProtocol() |
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261 | |||
262 | /** |
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263 | * Devuelve la url completa de base |
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264 | * @param boolean $protocol |
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265 | * @return string |
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266 | */ |
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267 | public function getRootUrl($protocol = true) |
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278 | |||
279 | /** |
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280 | * Método que devuelve el valor de una cookie en caso de que exista |
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281 | * @param string $name |
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282 | * |
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283 | * @return string |
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284 | */ |
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285 | 1 | public function getCookie($name) |
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289 | |||
290 | /** |
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291 | * Método que devuelve los files subidos por POST |
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292 | * @param $name |
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293 | * |
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294 | * @return array |
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295 | */ |
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296 | public function getFile($name) |
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300 | |||
301 | /** |
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302 | * Método que devuelve si la petición es ajax o no |
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303 | * @return boolean |
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304 | */ |
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305 | 1 | public function isAjax() |
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310 | |||
311 | } |
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312 |
Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: