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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| 21 | class ClientRemote extends BaseClientRemote |
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| 22 | { |
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| 23 | /** |
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| 24 | * @inheritdoc |
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| 25 | */ |
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| 26 | 2 | public function getTables(array $params = []) |
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| 31 | /** |
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| 32 | * @inheritdoc |
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| 33 | */ |
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| 34 | 4 | public function getTable($tableName) |
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| 40 | |||
| 41 | /** |
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| 42 | * @inheritdoc |
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| 43 | */ |
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| 44 | 2 | public function getColumns($tableName, array $params = []) |
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| 50 | |||
| 51 | /** |
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| 52 | * @inheritdoc |
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| 53 | */ |
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| 54 | 2 | public function getColumn($tableName, $columnName) |
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| 61 | /** |
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| 62 | * @inheritdoc |
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| 63 | */ |
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| 64 | 2 | public function getItems($tableName, array $options = []) |
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| 70 | |||
| 71 | /** |
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| 72 | * @inheritdoc |
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| 73 | */ |
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| 74 | 2 | public function getItem($tableName, $id, array $options = []) |
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| 80 | |||
| 81 | /** |
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| 82 | * @inheritdoc |
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| 83 | */ |
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| 84 | 2 | public function getUsers(array $params = []) |
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| 88 | |||
| 89 | /** |
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| 90 | * @inheritdoc |
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| 91 | */ |
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| 92 | 2 | public function getUser($id, array $params = []) |
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| 97 | /** |
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| 98 | * @inheritdoc |
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| 99 | */ |
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| 100 | 2 | public function getGroups() |
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| 105 | /** |
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| 106 | * @inheritdoc |
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| 107 | */ |
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| 108 | 2 | public function getGroup($groupID) |
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| 115 | /** |
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| 116 | * @inheritdoc |
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| 117 | */ |
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| 118 | 2 | public function getGroupPrivileges($groupID) |
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| 124 | |||
| 125 | /** |
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| 126 | * @inheritdoc |
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| 127 | */ |
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| 128 | 2 | public function getFiles() |
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| 133 | /** |
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| 134 | * @inheritdoc |
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| 135 | */ |
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| 136 | 2 | public function getFile($fileID) |
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| 142 | |||
| 143 | /** |
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| 144 | * @inheritdoc |
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| 145 | */ |
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| 146 | 2 | public function getSettings() |
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| 151 | /** |
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| 153 | */ |
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| 154 | 2 | public function getSettingsByCollection($collectionName) |
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| 161 | /** |
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| 162 | * @inheritdoc |
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| 163 | */ |
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| 164 | public function getMessages($userId) |
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| 171 | /** |
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| 172 | * @inheritdoc |
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| 173 | */ |
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| 174 | View Code Duplication | public function createItem($tableName, array $data) |
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| 181 | |||
| 182 | /** |
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| 183 | * @inheritdoc |
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| 185 | View Code Duplication | public function updateItem($tableName, $id, array $data) |
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| 193 | /** |
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| 194 | * @inheritdoc |
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| 195 | */ |
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| 196 | public function deleteItem($tableName, $id) |
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| 203 | /** |
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| 204 | * @inheritdoc |
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| 205 | */ |
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| 206 | public function createUser(array $data) |
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| 211 | /** |
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| 212 | * @inheritdoc |
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| 213 | */ |
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| 214 | public function updateUser($id, array $data) |
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| 219 | /** |
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| 220 | * @inheritdoc |
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| 221 | */ |
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| 222 | public function deleteUser($ids) |
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| 227 | /** |
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| 228 | * @inheritdoc |
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| 229 | */ |
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| 230 | public function createFile(File $file) |
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| 237 | /** |
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| 238 | * @inheritdoc |
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| 239 | */ |
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| 240 | public function updateFile($id, $data) |
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| 253 | /** |
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| 254 | * @inheritdoc |
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| 255 | */ |
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| 256 | public function deleteFile($id) |
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| 261 | public function createPreferences($data) |
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| 272 | /** |
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| 273 | * @inheritdoc |
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| 274 | */ |
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| 275 | public function createBookmark($data) |
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| 295 | /** |
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| 296 | * @inheritdoc |
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| 297 | */ |
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| 298 | public function getBookmark($id) |
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| 305 | /** |
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| 306 | * @inheritdoc |
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| 307 | */ |
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| 308 | public function getBookmarks($userId = null) |
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| 319 | /** |
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| 320 | * @inheritdoc |
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| 321 | */ |
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| 322 | public function createColumn($data) |
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| 331 | /** |
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| 332 | * @inheritdoc |
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| 333 | */ |
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| 334 | public function createGroup(array $data) |
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| 341 | /** |
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| 342 | * @inheritdoc |
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| 344 | public function createMessage(array $data) |
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| 357 | /** |
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| 358 | * @inheritdoc |
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| 359 | */ |
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| 360 | public function sendMessage(array $data) |
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| 365 | /** |
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| 366 | * @inheritdoc |
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| 367 | */ |
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| 368 | public function createPrivileges(array $data) |
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| 377 | public function createTable($name, array $params = []) |
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| 389 | /** |
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| 390 | * @inheritdoc |
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| 391 | */ |
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| 392 | public function createColumnUIOptions(array $data) |
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| 410 | * @inheritdoc |
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| 411 | */ |
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| 412 | public function getPreferences($table, $user = null) |
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| 417 | /** |
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| 418 | * @inheritdoc |
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| 419 | */ |
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| 420 | public function deleteBookmark($id) |
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| 425 | /** |
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| 426 | * @inheritdoc |
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| 427 | */ |
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| 428 | public function deleteColumn($name, $table) |
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| 435 | /** |
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| 436 | * @inheritdoc |
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| 437 | */ |
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| 438 | public function deleteGroup($id) |
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| 443 | /** |
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| 444 | * @inheritdoc |
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| 445 | */ |
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| 446 | public function deleteTable($name) |
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| 452 | |||
| 453 | /** |
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| 454 | * @inheritdoc |
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| 455 | */ |
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| 456 | public function getActivity(array $params = []) |
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| 468 | } |
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| 469 |