Complex classes like IndexDocument 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 IndexDocument, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 29 | class IndexDocument implements \JsonSerializable { |
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| 30 | |||
| 31 | const NOT_ENCODED = 0; |
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| 32 | const ENCODED_BASE64 = 1; |
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| 33 | |||
| 34 | /** @var string|int */ |
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| 35 | public $id; |
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| 36 | |||
| 37 | /** @var string */ |
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| 38 | public $providerId; |
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| 39 | |||
| 40 | /** @var DocumentAccess */ |
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| 41 | public $access; |
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| 42 | |||
| 43 | /** @var Index */ |
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| 44 | public $index; |
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| 45 | |||
| 46 | /** @var int */ |
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| 47 | public $modifiedTime = 0; |
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| 48 | |||
| 49 | /** @var array */ |
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| 50 | public $tags = []; |
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| 51 | |||
| 52 | // TODO: do we really need it in the base class ? |
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| 53 | /** @var string */ |
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| 54 | public $source = ''; |
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| 55 | |||
| 56 | /** @var string */ |
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| 57 | public $title = ''; |
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| 58 | |||
| 59 | /** @var string */ |
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| 60 | public $content = null; |
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| 61 | |||
| 62 | /** @var string */ |
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| 63 | public $hash = ''; |
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| 64 | |||
| 65 | /** @var array */ |
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| 66 | public $parts = []; |
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| 67 | |||
| 68 | /** @var string */ |
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| 69 | public $link = ''; |
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| 70 | |||
| 71 | /** @var array */ |
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| 72 | public $more = []; |
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| 73 | |||
| 74 | /** @var array */ |
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| 75 | public $excerpts = []; |
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| 76 | |||
| 77 | /** @var string */ |
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| 78 | public $score; |
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| 79 | |||
| 80 | /** @var array */ |
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| 81 | public $info = []; |
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| 82 | |||
| 83 | /** @var int */ |
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| 84 | public $contentEncoded; |
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| 85 | |||
| 86 | |||
| 87 | public function __construct($providerId, $id) { |
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| 91 | |||
| 92 | |||
| 93 | /** |
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| 94 | * @param string|integer $id |
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| 95 | * |
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| 96 | * @return $this |
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| 97 | */ |
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| 98 | public function setId($id) { |
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| 103 | |||
| 104 | /** |
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| 105 | * @return string|integer |
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| 106 | */ |
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| 107 | public function getId() { |
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| 110 | |||
| 111 | |||
| 112 | /** |
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| 113 | * @param string $providerId |
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| 114 | * |
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| 115 | * @return $this |
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| 116 | */ |
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| 117 | public function setProviderId($providerId) { |
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| 122 | |||
| 123 | /** |
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| 124 | * @return string |
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| 125 | */ |
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| 126 | public function getProviderId() { |
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| 129 | |||
| 130 | |||
| 131 | /** |
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| 132 | * @param Index $index |
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| 133 | */ |
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| 134 | public function setIndex(Index $index) { |
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| 137 | |||
| 138 | /** |
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| 139 | * @return Index |
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| 140 | */ |
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| 141 | public function getIndex() { |
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| 144 | |||
| 145 | |||
| 146 | /** |
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| 147 | * @param int $modifiedTime |
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| 148 | * |
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| 149 | * @return $this |
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| 150 | */ |
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| 151 | public function setModifiedTime($modifiedTime) { |
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| 156 | |||
| 157 | /** |
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| 158 | * @return int |
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| 159 | */ |
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| 160 | public function getModifiedTime() { |
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| 163 | |||
| 164 | /** |
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| 165 | * @param int $time |
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| 166 | * |
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| 167 | * @return bool |
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| 168 | */ |
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| 169 | public function isOlderThan($time) { |
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| 172 | |||
| 173 | |||
| 174 | /** |
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| 175 | * @param DocumentAccess $access |
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| 176 | * |
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| 177 | * @return $this |
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| 178 | */ |
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| 179 | public function setAccess(DocumentAccess $access) { |
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| 184 | |||
| 185 | /** |
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| 186 | * @return DocumentAccess |
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| 187 | */ |
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| 188 | public function getAccess() { |
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| 191 | |||
| 192 | |||
| 193 | /** |
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| 194 | * @param array $tags |
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| 195 | * |
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| 196 | * @return $this |
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| 197 | */ |
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| 198 | public function setTags($tags) { |
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| 203 | |||
| 204 | /** |
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| 205 | * @return array |
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| 206 | */ |
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| 207 | public function getTags() { |
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| 210 | |||
| 211 | /** |
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| 212 | * @param $tag |
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| 213 | * |
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| 214 | * @return $this |
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| 215 | */ |
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| 216 | public function addTag($tag) { |
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| 221 | |||
| 222 | /** |
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| 223 | * @return string |
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| 224 | */ |
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| 225 | public function getSource() { |
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| 228 | |||
| 229 | /** |
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| 230 | * @param string $source |
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| 231 | * |
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| 232 | * @return $this |
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| 233 | */ |
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| 234 | public function setSource($source) { |
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| 239 | |||
| 240 | |||
| 241 | /** |
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| 242 | * @param string $title |
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| 243 | * |
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| 244 | * @return $this |
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| 245 | */ |
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| 246 | public function setTitle($title) { |
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| 251 | |||
| 252 | /** |
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| 253 | * @return string |
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| 254 | */ |
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| 255 | public function getTitle() { |
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| 258 | |||
| 259 | |||
| 260 | /** |
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| 261 | * @param string $content |
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| 262 | * @param int $encoded |
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| 263 | * |
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| 264 | * @return $this |
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| 265 | */ |
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| 266 | public function setContent($content, $encoded = 0) { |
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| 272 | |||
| 273 | /** |
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| 274 | * @return string |
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| 275 | */ |
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| 276 | public function getContent() { |
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| 279 | |||
| 280 | |||
| 281 | /** |
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| 282 | * @return $this |
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| 283 | */ |
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| 284 | public function initHash() { |
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| 293 | |||
| 294 | /** |
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| 295 | * @param $hash |
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| 296 | * |
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| 297 | * @return $this |
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| 298 | */ |
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| 299 | public function setHash($hash) { |
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| 304 | |||
| 305 | /** |
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| 306 | * @return string |
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| 307 | */ |
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| 308 | public function getHash() { |
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| 311 | |||
| 312 | |||
| 313 | /** |
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| 314 | * @param string $part |
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| 315 | * @param string $content |
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| 316 | * |
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| 317 | * @return $this |
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| 318 | */ |
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| 319 | public function addPart($part, $content) { |
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| 324 | |||
| 325 | /** |
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| 326 | * @param array $parts |
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| 327 | * |
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| 328 | * @return $this |
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| 329 | */ |
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| 330 | public function setParts($parts) { |
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| 335 | |||
| 336 | /** |
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| 337 | * @return array |
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| 338 | */ |
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| 339 | public function getParts() { |
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| 342 | |||
| 343 | |||
| 344 | /** |
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| 345 | * @return int |
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| 346 | */ |
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| 347 | public function isContentEncoded() { |
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| 350 | |||
| 351 | |||
| 352 | /** |
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| 353 | * @param string $link |
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| 354 | * |
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| 355 | * @return $this |
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| 356 | */ |
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| 357 | public function setLink($link) { |
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| 362 | |||
| 363 | /** |
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| 364 | * @return string |
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| 365 | */ |
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| 366 | public function getLink() { |
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| 369 | |||
| 370 | |||
| 371 | /** |
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| 372 | * @param array $more |
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| 373 | * |
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| 374 | * @return $this |
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| 375 | */ |
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| 376 | public function setMore($more) { |
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| 381 | |||
| 382 | /** |
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| 383 | * @return array |
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| 384 | */ |
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| 385 | public function getMore() { |
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| 388 | |||
| 389 | |||
| 390 | /** |
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| 391 | * @param array $excerpts |
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| 392 | * |
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| 393 | * @return $this |
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| 394 | */ |
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| 395 | public function setExcerpts($excerpts) { |
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| 402 | |||
| 403 | /** |
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| 404 | * @return array |
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| 405 | */ |
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| 406 | public function getExcerpts() { |
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| 409 | |||
| 410 | /** |
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| 411 | * @param string $excerpt |
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| 412 | */ |
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| 413 | public function addExcerpt($excerpt) { |
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| 418 | |||
| 419 | /** |
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| 420 | * @param $excerpt |
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| 421 | * |
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| 422 | * @return mixed |
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| 423 | */ |
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| 424 | public function cleanExcerpt($excerpt) { |
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| 434 | |||
| 435 | /** |
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| 436 | * @param string $score |
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| 437 | * |
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| 438 | * @return $this |
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| 439 | */ |
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| 440 | public function setScore($score) { |
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| 445 | |||
| 446 | /** |
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| 447 | * @return string |
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| 448 | */ |
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| 449 | public function getScore() { |
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| 452 | |||
| 453 | |||
| 454 | /** |
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| 455 | * @param string $info |
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| 456 | * @param mixed $value |
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| 457 | * |
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| 458 | * @return $this |
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| 459 | */ |
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| 460 | public function setInfo($info, $value) { |
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| 465 | |||
| 466 | /** |
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| 467 | * @param string $info |
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| 468 | * @param mixed $default |
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| 469 | * |
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| 470 | * @return mixed |
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| 471 | */ |
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| 472 | public function getInfo($info, $default = '') { |
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| 479 | |||
| 480 | |||
| 481 | /** |
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| 482 | * @return array |
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| 483 | */ |
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| 484 | public function getInfoAll() { |
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| 497 | |||
| 498 | |||
| 499 | public function __destruct() { |
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| 516 | |||
| 517 | /** |
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| 518 | * @return array<string,string|integer|DocumentAccess|array> |
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| 519 | */ |
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| 520 | public function jsonSerialize() { |
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| 537 | |||
| 538 | } |