Complex classes like Factory 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 Factory, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 18 | class Factory |
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| 19 | { |
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| 20 | /** |
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| 21 | * Creates a new RData object from a name. |
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| 22 | * |
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| 23 | * @param string $name |
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| 24 | * |
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| 25 | * @throws UnsupportedTypeException |
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| 26 | * |
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| 27 | * @return RdataInterface |
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| 28 | */ |
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| 29 | 1 | public static function newRdataFromName(string $name): RdataInterface |
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| 39 | |||
| 40 | /** |
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| 41 | * @param int $id |
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| 42 | * |
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| 43 | * @return RdataInterface |
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| 44 | * |
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| 45 | * @throws UnsupportedTypeException |
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| 46 | */ |
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| 47 | public static function newRdataFromId(int $id): RdataInterface |
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| 51 | |||
| 52 | /** |
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| 53 | * @param string $name |
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| 54 | * |
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| 55 | * @return bool |
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| 56 | */ |
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| 57 | 17 | public static function isTypeImplemented(string $name): bool |
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| 61 | |||
| 62 | /** |
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| 63 | * @param string $type |
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| 64 | * @param string $text |
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| 65 | * |
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| 66 | * @return RdataInterface |
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| 67 | */ |
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| 68 | 16 | public static function textToRdataType(string $type, string $text): RdataInterface |
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| 79 | |||
| 80 | /** |
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| 81 | * Get the fully qualified class name of the RData class for $type. |
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| 82 | * |
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| 83 | * @param string $type |
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| 84 | * |
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| 85 | * @return string |
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| 86 | */ |
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| 87 | 17 | public static function getRdataClassName(string $type): string |
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| 91 | |||
| 92 | /** |
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| 93 | * Create a new AAAA R-Data object. |
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| 94 | * |
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| 95 | * @param string $address |
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| 96 | * |
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| 97 | * @return AAAA |
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| 98 | */ |
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| 99 | 12 | public static function AAAA(string $address): AAAA |
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| 106 | |||
| 107 | /** |
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| 108 | * Create a new A R-Data object. |
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| 109 | * |
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| 110 | * @param string $address |
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| 111 | * |
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| 112 | * @return A |
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| 113 | */ |
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| 114 | 12 | public static function A(string $address): A |
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| 121 | |||
| 122 | /** |
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| 123 | * Create a new CNAME object. |
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| 124 | * |
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| 125 | * @param string $cname |
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| 126 | * |
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| 127 | * @return CNAME |
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| 128 | */ |
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| 129 | 9 | public static function CNAME(string $cname): CNAME |
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| 136 | |||
| 137 | /** |
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| 138 | * @param string $cpu |
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| 139 | * @param string $os |
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| 140 | * |
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| 141 | * @return HINFO |
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| 142 | */ |
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| 143 | 8 | public static function HINFO(string $cpu, string $os): HINFO |
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| 151 | |||
| 152 | /** |
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| 153 | * @param int $preference |
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| 154 | * @param string $exchange |
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| 155 | * |
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| 156 | * @return MX |
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| 157 | */ |
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| 158 | 11 | public static function MX(int $preference, string $exchange): MX |
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| 166 | |||
| 167 | /** |
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| 168 | * @param string $mname |
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| 169 | * @param string $rname |
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| 170 | * @param int $serial |
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| 171 | * @param int $refresh |
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| 172 | * @param int $retry |
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| 173 | * @param int $expire |
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| 174 | * @param int $minimum |
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| 175 | * |
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| 176 | * @return SOA |
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| 177 | */ |
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| 178 | 14 | public static function SOA(string $mname, string $rname, int $serial, int $refresh, int $retry, int $expire, int $minimum): SOA |
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| 191 | |||
| 192 | /** |
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| 193 | * @param string $nsdname |
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| 194 | * |
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| 195 | * @return NS |
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| 196 | */ |
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| 197 | 13 | public static function NS(string $nsdname): NS |
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| 204 | |||
| 205 | /** |
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| 206 | * @param string $text |
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| 207 | * |
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| 208 | * @return TXT |
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| 209 | */ |
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| 210 | 10 | public static function TXT(string $text): TXT |
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| 217 | |||
| 218 | /** |
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| 219 | * @param string $target |
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| 220 | * |
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| 221 | * @return DNAME |
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| 222 | */ |
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| 223 | 9 | public static function DNAME(string $target): DNAME |
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| 230 | |||
| 231 | /** |
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| 232 | * @param float $lat |
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| 233 | * @param float $lon |
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| 234 | * @param float $alt |
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| 235 | * @param float $size |
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| 236 | * @param float $hp |
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| 237 | * @param float $vp |
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| 238 | * |
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| 239 | * @return LOC |
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| 240 | */ |
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| 241 | 10 | public static function LOC(float $lat, float $lon, $alt = 0.0, $size = 1.0, $hp = 10000.0, $vp = 10.0): LOC |
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| 253 | |||
| 254 | /** |
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| 255 | * @param string $target |
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| 256 | * |
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| 257 | * @return PTR |
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| 258 | */ |
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| 259 | 2 | public static function PTR(string $target): PTR |
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| 266 | |||
| 267 | /** |
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| 268 | * @param int $flags |
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| 269 | * @param int $algorithm |
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| 270 | * @param string $publicKey |
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| 271 | * |
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| 272 | * @return DNSKEY |
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| 273 | */ |
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| 274 | 1 | public static function DNSKEY(int $flags, int $algorithm, string $publicKey): DNSKEY |
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| 283 | |||
| 284 | /** |
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| 285 | * @param int $keyTag |
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| 286 | * @param int $algorithm |
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| 287 | * @param string $digest |
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| 288 | * @param int $digestType |
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| 289 | * |
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| 290 | * @return DS |
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| 291 | */ |
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| 292 | 1 | public static function DS(int $keyTag, int $algorithm, string $digest, int $digestType = DS::DIGEST_SHA1): DS |
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| 302 | |||
| 303 | /** |
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| 304 | * @param string $nextDomainName |
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| 305 | * @param array $types |
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| 306 | * |
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| 307 | * @return NSEC |
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| 308 | */ |
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| 309 | 1 | public static function NSEC(string $nextDomainName, array $types): NSEC |
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| 317 | |||
| 318 | /** |
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| 319 | * @param string $typeCovered |
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| 320 | * @param int $algorithm |
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| 321 | * @param int $labels |
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| 322 | * @param int $originalTtl |
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| 323 | * @param int $signatureExpiration |
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| 324 | * @param int $signatureInception |
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| 325 | * @param int $keyTag |
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| 326 | * @param string $signersName |
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| 327 | * @param string $signature |
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| 328 | * |
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| 329 | * @return RRSIG |
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| 330 | */ |
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| 331 | 1 | public static function RRSIG(string $typeCovered, int $algorithm, int $labels, int $originalTtl, |
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| 348 | |||
| 349 | /** |
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| 350 | * @param int $priority |
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| 351 | * @param int $weight |
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| 352 | * @param int $port |
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| 353 | * @param string $target |
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| 354 | * |
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| 355 | * @return SRV |
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| 356 | */ |
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| 357 | 1 | public static function SRV(int $priority, int $weight, int $port, string $target): SRV |
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| 367 | |||
| 368 | /** |
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| 369 | * @param IPBlock[] $includedRanges |
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| 370 | * @param IPBlock[] $excludedRanges |
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| 371 | * |
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| 372 | * @return APL |
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| 373 | */ |
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| 374 | 2 | public static function APL(array $includedRanges = [], array $excludedRanges = []): APL |
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| 388 | |||
| 389 | /** |
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| 390 | * @param int $flag |
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| 391 | * @param string $tag |
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| 392 | * @param string $value |
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| 393 | * |
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| 394 | * @return CAA |
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| 395 | */ |
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| 396 | 1 | public static function CAA(int $flag, string $tag, string $value): CAA |
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| 405 | |||
| 406 | /** |
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| 407 | * @param int $subType |
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| 408 | * @param string $hostname |
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| 409 | * |
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| 410 | * @return AFSDB |
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| 411 | */ |
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| 412 | public static function AFSDB(int $subType, string $hostname): AFSDB |
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| 420 | |||
| 421 | public static function CDNSKEY(): CDNSKEY |
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| 425 | |||
| 426 | public static function CDS(): CDS |
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| 430 | |||
| 431 | public static function CERT(): CERT |
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| 435 | |||
| 436 | public static function CSYNC(): CSYNC |
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| 440 | |||
| 441 | /** |
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| 442 | * @param string|null $digest Set to &null if the $identifier and $fqdn are known |
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| 443 | * @param int $identifierType 16-bit integer |
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| 444 | * @param string|null $identifier This is ignored if $digest is not &null |
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| 445 | * @param string|null $fqdn This is ignored if $digest is not &null |
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| 446 | * |
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| 447 | * @return DHCID |
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| 448 | */ |
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| 449 | 3 | public static function DHCID(?string $digest, int $identifierType, ?string $identifier = null, ?string $fqdn = null): DHCID |
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| 468 | |||
| 469 | /** |
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| 470 | * @param int $keyTag |
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| 471 | * @param int $algorithm |
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| 472 | * @param string $digest |
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| 473 | * @param int $digestType |
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| 474 | * |
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| 475 | * @return DLV |
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| 476 | */ |
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| 477 | public static function DLV(int $keyTag, int $algorithm, string $digest, int $digestType = DS::DIGEST_SHA1): DLV |
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| 487 | |||
| 488 | public static function HIP(): HIP |
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| 492 | |||
| 493 | /** |
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| 494 | * @param int $precedence an 8-bit unsigned integer |
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| 495 | * @param string|null $gateway either &null for no gateway, a fully qualified domain name, or an IPv4 or IPv6 address |
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| 496 | * @param int $algorithm either IPSECKEY::ALGORITHM_NONE, IPSECKEY::ALGORITHM_DSA, IPSECKEY::ALGORITHM_RSA, or IPSECKEY::ALGORITHM_ECDSA |
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| 497 | * @param string|null $publicKey base64 encoded public key |
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| 498 | * |
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| 499 | * @return IPSECKEY |
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| 500 | */ |
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| 501 | 6 | public static function IPSECKEY(int $precedence, ?string $gateway, int $algorithm = 0, ?string $publicKey = null): IPSECKEY |
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| 510 | |||
| 511 | public static function KEY(): KEY |
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| 515 | |||
| 516 | public static function KX(): KX |
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| 520 | |||
| 521 | 2 | public static function NAPTR(int $order, int $preference, string $flags, string $services, string $regexp, string $replacement): NAPTR |
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| 533 | |||
| 534 | public static function NSEC3(): NSEC3 |
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| 538 | |||
| 539 | public static function NSEC3PARAM(): NSEC3PARAM |
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| 543 | |||
| 544 | public static function OPENPGPKEY(): OPENPGPKEY |
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| 548 | |||
| 549 | public static function RP(string $mboxDomain, string $txtDomain): RP |
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| 557 | |||
| 558 | public static function SIG(): SIG |
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| 562 | |||
| 563 | public static function SMIMEA(): SMIMEA |
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| 567 | |||
| 568 | /** |
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| 569 | * @param int $algorithm |
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| 570 | * @param int $fpType |
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| 571 | * @param string $fingerprint |
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| 572 | * |
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| 573 | * @return SSHFP |
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| 574 | */ |
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| 575 | 6 | public static function SSHFP(int $algorithm, int $fpType, string $fingerprint): SSHFP |
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| 584 | |||
| 585 | public static function TA(): TA |
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| 589 | |||
| 590 | public static function TKEY(): TKEY |
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| 594 | |||
| 595 | public static function TLSA(): TLSA |
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| 599 | |||
| 600 | public static function TSIG(): TSIG |
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| 604 | |||
| 605 | /** |
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| 606 | * @param int $priority |
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| 607 | * @param int $weight |
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| 608 | * @param string $target |
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| 609 | * |
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| 610 | * @return URI |
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| 611 | */ |
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| 612 | 6 | public static function URI(int $priority, int $weight, string $target): URI |
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| 621 | } |
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| 622 |