Complex classes like Url 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 Url, and based on these observations, apply Extract Interface, too.
1 | <?php |
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49 | class Url extends Uri implements UriInterface, SerializablePropertyInterface |
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50 | { |
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51 | /** |
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52 | * Use PSR-7 method |
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53 | */ |
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54 | use Psr7Trait; |
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55 | /** |
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56 | * HTTP scheme |
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57 | * |
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58 | * @var string |
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59 | */ |
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60 | const SCHEME_HTTP = 'http'; |
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61 | /** |
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62 | * HTTPS schema |
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63 | * |
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64 | * @var string |
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65 | */ |
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66 | const SCHEME_HTTPS = 'https'; |
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67 | /** |
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68 | * Valid schemes |
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69 | * |
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70 | * @var array |
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71 | */ |
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72 | protected static $schemes = [self::SCHEME_HTTP => true, self::SCHEME_HTTPS => true]; |
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73 | /** |
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74 | * URL parts |
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75 | * |
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76 | * @var array |
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77 | */ |
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78 | protected $urlParts = null; |
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79 | |||
80 | /** |
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81 | * URL constructor |
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82 | * |
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83 | * @param string $url URL |
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84 | * @throws InvalidArgumentException If the URL is invalid |
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85 | */ |
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86 | 64 | public function __construct($url) |
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99 | |||
100 | /** |
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101 | * Return the serialized URL |
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102 | * |
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103 | * @return string Serialized URL |
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104 | */ |
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105 | 31 | public function __toString() |
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109 | |||
110 | /** |
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111 | * Return the full serialized URL |
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112 | * |
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113 | * @return string Full URL |
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114 | */ |
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115 | 31 | public function getUrl() |
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119 | |||
120 | /** |
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121 | * Return the a complete serialized URL |
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122 | * |
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123 | * @param array $override Override components |
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124 | * @return string Serialized URL |
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125 | */ |
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126 | 34 | protected function getUrlInternal(array &$override = []) |
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198 | |||
199 | /** |
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200 | * Return the URL user |
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201 | * |
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202 | * @return string|NULL URL user |
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203 | */ |
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204 | 12 | public function getUser() |
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208 | |||
209 | /** |
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210 | * Return the URL password |
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211 | * |
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212 | * @return string|NULL URL password |
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213 | */ |
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214 | 12 | public function getPassword() |
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218 | |||
219 | /** |
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220 | * Return the URL query parameters as list |
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221 | * |
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222 | * @return array URL query parameters |
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223 | */ |
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224 | 2 | public function getQueryParams() |
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232 | |||
233 | /** |
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234 | * Set the URL host |
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235 | * |
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236 | * @param string $host URL host |
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237 | * @return Url New URL |
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238 | * @throws InvalidArgumentException If the URL host is invalid |
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239 | */ |
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240 | 2 | public function setHost($host) |
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256 | |||
257 | /** |
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258 | * Set the URL port |
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259 | * |
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260 | * @param int|null $port URL port |
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261 | * @return Url New URL |
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262 | * @throws InvalidArgumentException If the URL port is invalid |
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263 | */ |
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264 | 2 | public function setPort($port) |
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278 | |||
279 | /** |
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280 | * Set the URL user |
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281 | * |
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282 | * @param string|NULL $user URL user |
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283 | * @return Url New URL |
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284 | */ |
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285 | 2 | public function setUser($user) |
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291 | |||
292 | /** |
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293 | * Set the URL password |
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294 | * |
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295 | * @param string $pass URL password |
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296 | * @return Url New URL |
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297 | */ |
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298 | 2 | public function setPassword($pass) |
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304 | |||
305 | /** |
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306 | * Set the URL query |
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307 | * |
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308 | * @param string $query URL query |
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309 | * @return Url New URL |
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310 | */ |
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311 | 2 | public function setQuery($query) |
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317 | |||
318 | /** |
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319 | * Set the URL query parameters |
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320 | * |
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321 | * @param array $query URL query parameters |
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322 | * @return Url New URL |
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323 | */ |
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324 | 1 | public function setQueryParams(array $query) |
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330 | |||
331 | /** |
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332 | * Set the URL fragment |
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333 | * |
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334 | * @param string $fragment URL fragment |
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335 | * @return Url New URL |
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336 | */ |
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337 | 2 | public function setFragment($fragment) |
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343 | |||
344 | /** |
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345 | * Test whether this URL is remote |
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346 | * |
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347 | * @return bool Remote URL |
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348 | */ |
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349 | 1 | public function isRemote() |
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353 | |||
354 | /** |
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355 | * Return whether this URL is absolute |
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356 | * |
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357 | * @return bool Absolute URL |
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358 | */ |
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359 | 56 | public function isAbsolute() |
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363 | |||
364 | /** |
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365 | * Test whether this URL belongs to the local Apparat instance |
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366 | * |
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367 | * @return bool URL belongs to the local Apparat instance |
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368 | */ |
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369 | 25 | public function isAbsoluteLocal() |
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383 | |||
384 | /** |
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385 | * Set the URL path |
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386 | * |
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387 | * @param string $path URL path |
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388 | * @return Url New URL |
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389 | */ |
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390 | 27 | public function setPath($path) |
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398 | |||
399 | /** |
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400 | * Set the URL scheme |
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401 | * |
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402 | * @param string $scheme URL scheme |
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403 | * @return Url New URL |
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404 | * @throws InvalidArgumentException If the URL scheme is invalid |
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405 | */ |
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406 | 27 | public function setScheme($scheme) |
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420 | |||
421 | /** |
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422 | * Test if this URL matches all available parts of a given URL |
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423 | * |
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424 | * @param Url $url Comparison URL |
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425 | * @return bool This URL matches all available parts of the given URL |
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426 | */ |
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427 | 8 | public function matches(Url $url) |
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480 | |||
481 | /** |
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482 | * Unserialize the string representation of this property |
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483 | * |
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484 | * @param string $str Serialized property |
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485 | * @return SerializablePropertyInterface Property |
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486 | */ |
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487 | 1 | public static function unserialize($str) |
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491 | |||
492 | /** |
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493 | * Serialize the property |
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494 | * |
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495 | * @return mixed Property serialization |
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496 | */ |
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497 | 1 | public function serialize() |
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501 | } |
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502 |