Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like ClientRemote 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 ClientRemote, and based on these observations, apply Extract Interface, too.
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| 20 | class ClientRemote extends BaseClientRemote |
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| 21 | { |
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| 22 | /** |
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| 23 | * @inheritdoc |
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| 24 | */ |
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| 25 | public function getTables(array $params = []) |
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| 30 | /** |
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| 32 | */ |
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| 33 | public function getTable($tableName) |
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| 40 | /** |
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| 42 | */ |
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| 43 | public function getColumns($tableName, array $params = []) |
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| 50 | /** |
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| 51 | * @inheritdoc |
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| 52 | */ |
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| 53 | public function getColumn($tableName, $columnName) |
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| 60 | /** |
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| 62 | */ |
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| 63 | public function getItems($tableName, array $options = []) |
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| 70 | /** |
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| 71 | * @inheritdoc |
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| 72 | */ |
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| 73 | public function getItem($tableName, $id, array $options = []) |
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| 80 | /** |
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| 81 | * @inheritdoc |
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| 82 | */ |
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| 83 | public function getUsers(array $params = []) |
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| 88 | /** |
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| 90 | */ |
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| 91 | public function getUser($id, array $params = []) |
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| 96 | /** |
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| 99 | public function getGroups() |
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| 104 | /** |
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| 107 | public function getGroup($groupID) |
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| 114 | /** |
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| 117 | public function getGroupPrivileges($groupID) |
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| 124 | /** |
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| 127 | public function getFiles() |
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| 135 | public function getFile($fileID) |
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| 142 | /** |
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| 145 | public function getSettings() |
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| 153 | public function getSettingsByCollection($collectionName) |
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| 163 | public function updateSettings($collection, array $data) |
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| 175 | View Code Duplication | public function getMessages($userId = null) |
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| 186 | /** |
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| 189 | public function getMessage($id) |
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| 196 | /** |
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| 199 | View Code Duplication | public function createItem($tableName, array $data) |
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| 207 | /** |
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| 210 | View Code Duplication | public function updateItem($tableName, $id, array $data) |
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| 218 | /** |
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| 219 | * @inheritdoc |
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| 220 | */ |
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| 221 | public function deleteItem($tableName, $id) |
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| 228 | /** |
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| 230 | */ |
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| 231 | public function createUser(array $data) |
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| 236 | /** |
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| 237 | * @inheritdoc |
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| 238 | */ |
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| 239 | public function updateUser($id, array $data) |
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| 244 | /** |
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| 246 | */ |
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| 247 | public function deleteUser($ids) |
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| 252 | /** |
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| 253 | * @inheritdoc |
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| 254 | */ |
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| 255 | public function createFile(File $file) |
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| 262 | /** |
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| 263 | * @inheritdoc |
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| 264 | */ |
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| 265 | public function updateFile($id, $data) |
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| 278 | /** |
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| 279 | * @inheritdoc |
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| 280 | */ |
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| 281 | public function deleteFile($id) |
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| 286 | public function createPreferences($data) |
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| 299 | */ |
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| 300 | public function createBookmark($data) |
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| 320 | /** |
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| 321 | * @inheritdoc |
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| 322 | */ |
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| 323 | public function getBookmark($id) |
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| 330 | /** |
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| 331 | * @inheritdoc |
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| 332 | */ |
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| 333 | View Code Duplication | public function getBookmarks($userId = null) |
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| 344 | /** |
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| 345 | * @inheritdoc |
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| 347 | public function createColumn($data) |
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| 359 | public function createGroup(array $data) |
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| 366 | /** |
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| 369 | public function createMessage(array $data) |
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| 382 | /** |
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| 385 | public function sendMessage(array $data) |
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| 390 | /** |
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| 391 | * @inheritdoc |
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| 392 | */ |
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| 393 | public function createPrivileges(array $data) |
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| 402 | public function createTable($name, array $params = []) |
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| 415 | * @inheritdoc |
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| 416 | */ |
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| 417 | public function createColumnUIOptions(array $data) |
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| 437 | public function getPreferences($table, $user = null) |
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| 442 | /** |
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| 443 | * @inheritdoc |
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| 444 | */ |
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| 445 | public function deleteBookmark($id) |
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| 450 | /** |
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| 451 | * @inheritdoc |
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| 452 | */ |
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| 453 | public function deleteColumn($name, $table) |
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| 460 | /** |
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| 461 | * @inheritdoc |
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| 462 | */ |
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| 463 | public function deleteGroup($id) |
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| 468 | /** |
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| 469 | * @inheritdoc |
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| 470 | */ |
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| 471 | public function deleteTable($name) |
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| 477 | |||
| 478 | /** |
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| 479 | * @inheritdoc |
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| 480 | */ |
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| 481 | public function getActivity(array $params = []) |
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| 493 | } |
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| 494 |