Complex classes like Connector 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 Connector, and based on these observations, apply Extract Interface, too.
| 1 | <?php | ||
| 31 | class Connector implements ConnectorInterface | ||
| 32 | { | ||
| 33 | /** | ||
| 34 | * The official service URI; can be overridden via the constructor | ||
| 35 | * | ||
| 36 | * @var string | ||
| 37 | */ | ||
| 38 | const SERVICE_PRODUCTION_URL = 'https://api.communibase.nl/0.1/'; | ||
| 39 | |||
| 40 | /** | ||
| 41 | * The API key which is to be used for the api. | ||
| 42 | * Is required to be set via the constructor. | ||
| 43 | * | ||
| 44 | * @var string | ||
| 45 | */ | ||
| 46 | private $apiKey; | ||
| 47 | |||
| 48 | /** | ||
| 49 | * The url which is to be used for this connector. Defaults to the production url. | ||
| 50 | * Can be set via the constructor. | ||
| 51 | * | ||
| 52 | * @var string | ||
| 53 | */ | ||
| 54 | private $serviceUrl; | ||
| 55 | |||
| 56 | /** | ||
| 57 | * @var array of extra headers to send with each request | ||
| 58 | */ | ||
| 59 | private $extraHeaders = []; | ||
| 60 | |||
| 61 | /** | ||
| 62 | * @var QueryLogger | ||
| 63 | */ | ||
| 64 | private $logger; | ||
| 65 | |||
| 66 | /** | ||
| 67 | * @var ClientInterface | ||
| 68 | */ | ||
| 69 | private $client; | ||
| 70 | |||
| 71 | /** | ||
| 72 | * Create a new Communibase Connector instance based on the given api-key and possible serviceUrl | ||
| 73 | * | ||
| 74 | * @param string $apiKey The API key for Communibase | ||
| 75 | * @param string $serviceUrl The Communibase API endpoint; defaults to self::SERVICE_PRODUCTION_URL | ||
| 76 | * @param ClientInterface $client An optional GuzzleHttp Client (or Interface for mocking) | ||
| 77 | */ | ||
| 78 | public function __construct( | ||
| 87 | |||
| 88 | /** | ||
| 89 | * Returns an array that has all the fields according to the definition in Communibase. | ||
| 90 | * | ||
| 91 | * @param string $entityType | ||
| 92 | * | ||
| 93 | * @return Promise of result | ||
| 94 | * | ||
| 95 | * @throws Exception | ||
| 96 | */ | ||
| 97 | public function getTemplate($entityType) | ||
| 98 |     { | ||
| 99 | $params = [ | ||
| 100 | 'fields' => 'attributes.title', | ||
| 101 | 'limit' => 1, | ||
| 102 | ]; | ||
| 103 | |||
| 104 |         return $this->search('EntityType', ['title' => $entityType], $params)->then(function ($definition) { | ||
| 105 | return array_fill_keys(array_merge(['_id'], array_column($definition[0]['attributes'], 'title')), null); | ||
| 106 | }); | ||
| 107 | } | ||
| 108 | |||
| 109 | /** | ||
| 110 | * Get a single Entity by its id | ||
| 111 | * | ||
| 112 | * @param string $entityType | ||
| 113 | * @param string $id | ||
| 114 | * @param array $params (optional) | ||
| 115 | * | ||
| 116 | * @return Promise of result | ||
| 117 | * | ||
| 118 | * @throws Exception | ||
| 119 | */ | ||
| 120 | public function getById($entityType, $id, array $params = []) | ||
| 121 |     { | ||
| 122 |         if (empty($id)) { | ||
| 123 |             throw new Exception('Id is empty'); | ||
| 124 | } | ||
| 125 |         if (!$this->isIdValid($id)) { | ||
| 126 |             throw new Exception('Id is invalid, please use a correctly formatted id'); | ||
| 127 | } | ||
| 128 | |||
| 129 | return $this->doGet($entityType . '.json/crud/' . $id, $params); | ||
| 130 | } | ||
| 131 | |||
| 132 | /** | ||
| 133 | * NOTE not yet async | ||
| 134 | * | ||
| 135 | * Get a single Entity by a ref-string | ||
| 136 | * | ||
| 137 | * @param string $ref | ||
| 138 | * @param array $parentEntity (optional) | ||
| 139 | * | ||
| 140 | * @return array the referred Entity data | ||
| 141 | * | ||
| 142 | * @throws Exception | ||
| 143 | */ | ||
| 144 | public function getByRef($ref, array $parentEntity = []) | ||
| 162 | |||
| 163 | /** | ||
| 164 | * Get an array of entities by their ids | ||
| 165 | * | ||
| 166 | * @param string $entityType | ||
| 167 | * @param array $ids | ||
| 168 | * @param array $params (optional) | ||
| 169 | * | ||
| 170 | * @return Promise of result | ||
| 171 | */ | ||
| 172 | public function getByIds($entityType, array $ids, array $params = []) | ||
| 196 | |||
| 197 | /** | ||
| 198 | * Get all entities of a certain type | ||
| 199 | * | ||
| 200 | * @param string $entityType | ||
| 201 | * @param array $params (optional) | ||
| 202 | * | ||
| 203 | * @return Promise of result | ||
| 204 | */ | ||
| 205 | public function getAll($entityType, array $params = []) | ||
| 209 | |||
| 210 | /** | ||
| 211 | * Get result entityIds of a certain search | ||
| 212 | * | ||
| 213 | * @param string $entityType | ||
| 214 | * @param array $selector (optional) | ||
| 215 | * @param array $params (optional) | ||
| 216 | * | ||
| 217 | * @return Promise of result | ||
| 218 | */ | ||
| 219 | public function getIds($entityType, array $selector = [], array $params = []) | ||
| 227 | |||
| 228 | /** | ||
| 229 | * Get the id of an entity based on a search | ||
| 230 | * | ||
| 231 | * @param string $entityType i.e. Person | ||
| 232 | * @param array $selector (optional) i.e. ['firstName' => 'Henk'] | ||
| 233 | * | ||
| 234 | * @return Promise of result | ||
| 235 | */ | ||
| 236 | public function getId($entityType, array $selector = []) | ||
| 243 | |||
| 244 | /** | ||
| 245 | * Returns an array of the history for the entity with the following format: | ||
| 246 | * | ||
| 247 | * <code> | ||
| 248 | * [ | ||
| 249 | * [ | ||
| 250 | * 'updatedBy' => '', // name of the user | ||
| 251 | * 'updatedAt' => '', // a string according to the DateTime::ISO8601 format | ||
| 252 | * '_id' => '', // the ID of the entity which can ge fetched seperately | ||
| 253 | * ], | ||
| 254 | * ... | ||
| 255 | * ] | ||
| 256 | * </code> | ||
| 257 | * | ||
| 258 | * @param string $entityType | ||
| 259 | * @param string $id | ||
| 260 | * | ||
| 261 | * @return Promise of result | ||
| 262 | * | ||
| 263 | * @throws Exception | ||
| 264 | */ | ||
| 265 | public function getHistory($entityType, $id) | ||
| 269 | |||
| 270 | /** | ||
| 271 | * Search for the given entity by optional passed selector/params | ||
| 272 | * | ||
| 273 | * @param string $entityType | ||
| 274 | * @param array $querySelector | ||
| 275 | * @param array $params (optional) | ||
| 276 | * | ||
| 277 | * @return Promise of result | ||
| 278 | * | ||
| 279 | * @throws Exception | ||
| 280 | */ | ||
| 281 | public function search($entityType, array $querySelector, array $params = []) | ||
| 285 | |||
| 286 | /** | ||
| 287 | * This will save an entity in Communibase. When a _id-field is found, this entity will be updated | ||
| 288 | * | ||
| 289 | * NOTE: When updating, depending on the Entity, you may need to include all fields. | ||
| 290 | * | ||
| 291 | * @param string $entityType | ||
| 292 | * @param array $properties - the to-be-saved entity data | ||
| 293 | * | ||
| 294 | * @returns Promise of result | ||
| 295 | * | ||
| 296 | * @throws Exception | ||
| 297 | */ | ||
| 298 | public function update($entityType, array $properties) | ||
| 308 | |||
| 309 | /** | ||
| 310 | * Finalize an invoice by adding an invoiceNumber to it. | ||
| 311 | * Besides, invoice items will receive a "generalLedgerAccountNumber". | ||
| 312 | * This number will be unique and sequential within the "daybook" of the invoice. | ||
| 313 | * | ||
| 314 | * NOTE: this is Invoice specific | ||
| 315 | * | ||
| 316 | * @param string $entityType | ||
| 317 | * @param string $id | ||
| 318 | * | ||
| 319 | * @return Promise of result | ||
| 320 | * | ||
| 321 | * @throws Exception | ||
| 322 | */ | ||
| 323 | public function finalize($entityType, $id) | ||
| 331 | |||
| 332 | /** | ||
| 333 | * Delete something from Communibase | ||
| 334 | * | ||
| 335 | * @param string $entityType | ||
| 336 | * @param string $id | ||
| 337 | * | ||
| 338 | * @return Promise of result | ||
| 339 | */ | ||
| 340 | public function destroy($entityType, $id) | ||
| 344 | |||
| 345 | /** | ||
| 346 | * Get the binary contents of a file by its ID | ||
| 347 | * | ||
| 348 | * NOTE: for meta-data like filesize and mimetype, one can use the getById()-method. | ||
| 349 | * | ||
| 350 | * @param string $id id string for the file-entity | ||
| 351 | * | ||
| 352 | * @return StreamInterface Binary contents of the file. Since the stream can be made a string this works like a charm! | ||
| 353 | * | ||
| 354 | * @throws Exception | ||
| 355 | */ | ||
| 356 | public function getBinary($id) | ||
| 366 | |||
| 367 | /** | ||
| 368 | * Uploads the contents of the resource (this could be a file handle) to Communibase | ||
| 369 | * | ||
| 370 | * @param StreamInterface $resource | ||
| 371 | * @param string $name | ||
| 372 | * @param string $destinationPath | ||
| 373 | * @param string $id | ||
| 374 | * | ||
| 375 | * @return array|mixed | ||
| 376 | * @throws Exception | ||
| 377 | */ | ||
| 378 | public function updateBinary(StreamInterface $resource, $name, $destinationPath, $id = '') | ||
| 410 | |||
| 411 | /** | ||
| 412 | * MAGIC for making async sync | ||
| 413 | * | ||
| 414 | * @param string $name | ||
| 415 | * @param array $arguments | ||
| 416 | * | ||
| 417 | * @return mixed | ||
| 418 | */ | ||
| 419 | public function __call($name, $arguments) | ||
| 431 | |||
| 432 | /** | ||
| 433 | * @param string $path | ||
| 434 | * @param array $params | ||
| 435 | * @param array $data | ||
| 436 | * | ||
| 437 | * @return Promise | ||
| 438 | * | ||
| 439 | * @throws Exception | ||
| 440 | */ | ||
| 441 | protected function doGet($path, array $params = null, array $data = null) | ||
| 445 | |||
| 446 | /** | ||
| 447 | * @param string $path | ||
| 448 | * @param array $params | ||
| 449 | * @param array $data | ||
| 450 | * | ||
| 451 | * @return Promise | ||
| 452 | * | ||
| 453 | * @throws Exception | ||
| 454 | */ | ||
| 455 | protected function doPost($path, array $params = null, array $data = null) | ||
| 459 | |||
| 460 | /** | ||
| 461 | * @param string $path | ||
| 462 | * @param array $params | ||
| 463 | * @param array $data | ||
| 464 | * | ||
| 465 | * @return Promise | ||
| 466 | * | ||
| 467 | * @throws Exception | ||
| 468 | */ | ||
| 469 | protected function doPut($path, array $params = null, array $data = null) | ||
| 473 | |||
| 474 | /** | ||
| 475 | * @param string $path | ||
| 476 | * @param array $params | ||
| 477 | * @param array $data | ||
| 478 | * | ||
| 479 | * @return Promise | ||
| 480 | * | ||
| 481 | * @throws Exception | ||
| 482 | */ | ||
| 483 | protected function doDelete($path, array $params = null, array $data = null) | ||
| 487 | |||
| 488 | /** | ||
| 489 | * Process the request | ||
| 490 | * | ||
| 491 | * @param string $method | ||
| 492 | * @param string $path | ||
| 493 | * @param array $params | ||
| 494 | * @param array $data | ||
| 495 | * | ||
| 496 | * @return Promise array i.e. [success => true|false, [errors => ['message' => 'this is broken', ..]]] | ||
| 497 | * | ||
| 498 | * @throws Exception | ||
| 499 | */ | ||
| 500 | protected function getResult($method, $path, array $params = null, array $data = null) | ||
| 539 | |||
| 540 | /** | ||
| 541 | * @param array $params | ||
| 542 | * | ||
| 543 | * @return mixed | ||
| 544 | */ | ||
| 545 | private function preParseParams(array $params) | ||
| 570 | |||
| 571 | /** | ||
| 572 | * Parse the Communibase result and if necessary throw an exception | ||
| 573 | * | ||
| 574 | * @param string $response | ||
| 575 | * @param int $httpCode | ||
| 576 | * | ||
| 577 | * @return array | ||
| 578 | * | ||
| 579 | * @throws Exception | ||
| 580 | */ | ||
| 581 | private function parseResult($response, $httpCode) | ||
| 591 | |||
| 592 | /** | ||
| 593 | * Error message based on the most recent JSON error. | ||
| 594 | * | ||
| 595 | * @see http://nl1.php.net/manual/en/function.json-last-error.php | ||
| 596 | * | ||
| 597 | * @return string | ||
| 598 | */ | ||
| 599 | private function getLastJsonError() | ||
| 612 | |||
| 613 | /** | ||
| 614 | * @param string $id | ||
| 615 | * | ||
| 616 | * @return bool | ||
| 617 | */ | ||
| 618 | public static function isIdValid($id) | ||
| 630 | |||
| 631 | /** | ||
| 632 | * Generate a Communibase compatible ID, that consists of: | ||
| 633 | * | ||
| 634 | * a 4-byte timestamp, | ||
| 635 | * a 3-byte machine identifier, | ||
| 636 | * a 2-byte process id, and | ||
| 637 | * a 3-byte counter, starting with a random value. | ||
| 638 | * | ||
| 639 | * @return string | ||
| 640 | */ | ||
| 641 | public static function generateId() | ||
| 658 | |||
| 659 | /** | ||
| 660 | * Add extra headers to be added to each request | ||
| 661 | * | ||
| 662 | * @see http://php.net/manual/en/function.header.php | ||
| 663 | * | ||
| 664 | * @param array $extraHeaders | ||
| 665 | */ | ||
| 666 | public function addExtraHeaders(array $extraHeaders) | ||
| 670 | |||
| 671 | /** | ||
| 672 | * @param QueryLogger $logger | ||
| 673 | */ | ||
| 674 | public function setQueryLogger(QueryLogger $logger) | ||
| 678 | |||
| 679 | /** | ||
| 680 | * @return QueryLogger | ||
| 681 | */ | ||
| 682 | public function getQueryLogger() | ||
| 686 | |||
| 687 | /** | ||
| 688 | * @return \GuzzleHttp\Client | ||
| 689 | * @throws Exception | ||
| 690 | */ | ||
| 691 | protected function getClient() | ||
| 711 | |||
| 712 | /** | ||
| 713 | * @param string $method | ||
| 714 | * @param array $arguments | ||
| 715 | * | ||
| 716 | * @return Promise | ||
| 717 | * | ||
| 718 | * @throws Exception | ||
| 719 | */ | ||
| 720 | private function call($method, array $arguments) | ||
| 742 | |||
| 743 | } | ||
| 744 |