Complex classes like UrlParserA 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 UrlParserA, and based on these observations, apply Extract Interface, too.
1 | <?php |
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7 | class UrlParserA extends Object implements UrlParserInterface { |
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8 | static protected $queryEncodingType = PHP_QUERY_RFC1738; |
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9 | |||
10 | private $sUrl; |
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11 | /** |
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12 | * @var Url |
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13 | */ |
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14 | private $oUrl; |
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15 | |||
16 | /** |
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17 | * @param string $sUrl |
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18 | */ |
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19 | public function __construct($sUrl = null) { |
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22 | |||
23 | /** |
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24 | * @return string |
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25 | */ |
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26 | public function __toString() { |
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29 | |||
30 | /** |
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31 | * This is somewhat ugly. |
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32 | * Returns an instance of the class on which the method is called |
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33 | * @return Url |
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34 | */ |
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35 | public static function getCurrentUrl() { |
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38 | |||
39 | /** |
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40 | * @return string |
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41 | */ |
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42 | 4 | public static function getRequestUri() { |
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55 | |||
56 | /** |
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57 | * @param string $sUrl |
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58 | * @return bool |
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59 | */ |
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60 | 1 | public static function urlHasScheme($sUrl) { |
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65 | |||
66 | /** |
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67 | * @param Url $oUrl |
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68 | * @param array $aParsed |
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69 | * @return Url |
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70 | */ |
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71 | 1 | private static function loadParsedUrl($oUrl, $aParsed) { |
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92 | |||
93 | /** |
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94 | * This exists as the php::parse_url function sometimes breaks inexplicably |
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95 | * @param string $sUrl |
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96 | * @return Url |
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97 | */ |
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98 | 25 | protected static function parse_url($sUrl = null) { |
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124 | |||
125 | /** |
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126 | * @param string $sUrl |
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127 | */ |
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128 | public function setUrl($sUrl) { |
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132 | |||
133 | private function getSubdomainOf($sRootDomain) { |
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139 | |||
140 | 1 | public static function getTldOf($sHost) { |
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149 | |||
150 | public static function getCurrentHostName() { |
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153 | |||
154 | 3 | public function getParentPath($iSteps = 0) { |
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176 | |||
177 | 4 | public function setPath($sPath) { |
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180 | |||
181 | 1 | public function getPath() { |
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184 | |||
185 | /** |
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186 | * @param string $sPath |
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187 | * @return bool |
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188 | */ |
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189 | 1 | public static function isAbsolutePath($sPath) { |
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192 | |||
193 | /** |
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194 | * @return Url |
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195 | */ |
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196 | 1 | static public function getSiteUri() { |
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199 | |||
200 | /** |
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201 | * @param int $iSteps |
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202 | * @return string |
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203 | * @internal param bool $bFull |
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204 | */ |
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205 | 3 | public function getCompleteParentUri($iSteps = 1) { |
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214 | |||
215 | /** |
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216 | * @return string |
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217 | * @internal param bool $bFull |
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218 | */ |
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219 | 3 | public function getCompleteUri() { |
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222 | |||
223 | /** |
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224 | * @param string $sUri |
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225 | * @param string $sTermination |
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226 | * @return bool |
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227 | */ |
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228 | 26 | public static function hasGoodTermination($sUri, $sTermination = '/') { |
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232 | |||
233 | /** |
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234 | * @param string $sUrl |
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235 | * @return Url |
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236 | */ |
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237 | 18 | static public function url($sUrl) { |
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240 | |||
241 | /** |
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242 | * @param string $sPath |
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243 | * @return string |
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244 | */ |
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245 | 42 | static public function normalizePath($sPath) { |
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286 | } |
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287 |
This check looks for
@param
annotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive.
Most often this is a case of a parameter that can be null in addition to its declared types.