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.
| 1 | <?php  | 
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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 | 2 | public function getTables(array $params = [])  | 
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| 29 | |||
| 30 | /**  | 
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| 31 | * @inheritdoc  | 
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| 32 | */  | 
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| 33 | 4 | public function getTable($tableName)  | 
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| 39 | |||
| 40 | /**  | 
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| 41 | * @inheritdoc  | 
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| 42 | */  | 
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| 43 | 2 | public function getColumns($tableName, array $params = [])  | 
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| 49 | |||
| 50 | /**  | 
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| 51 | * @inheritdoc  | 
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| 52 | */  | 
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| 53 | 2 | public function getColumn($tableName, $columnName)  | 
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| 59 | |||
| 60 | /**  | 
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| 61 | * @inheritdoc  | 
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| 62 | */  | 
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| 63 | 2 | public function getItems($tableName, array $options = [])  | 
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| 64 |     { | 
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| 65 | 2 | $path = $this->buildPath(static::TABLE_ENTRIES_ENDPOINT, $tableName);  | 
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| 66 | |||
| 67 | 2 |         return $this->performRequest('GET', $path, ['query' => $options]); | 
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| 68 | }  | 
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| 69 | |||
| 70 | /**  | 
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| 71 | * @inheritdoc  | 
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| 72 | */  | 
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| 73 | 2 | public function getItem($tableName, $id, array $options = [])  | 
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| 74 |     { | 
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| 75 | 2 | $path = $this->buildPath(static::TABLE_ENTRY_ENDPOINT, [$tableName, $id]);  | 
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| 76 | |||
| 77 | 2 |         return $this->performRequest('GET', $path, ['query' => $options]); | 
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| 78 | }  | 
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| 79 | |||
| 80 | /**  | 
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| 81 | * @inheritdoc  | 
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| 82 | */  | 
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| 83 | 2 | public function getUsers(array $params = [])  | 
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| 87 | |||
| 88 | /**  | 
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| 89 | * @inheritdoc  | 
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| 90 | */  | 
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| 91 | 2 | public function getUser($id, array $params = [])  | 
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| 95 | |||
| 96 | /**  | 
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| 97 | * @inheritdoc  | 
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| 98 | */  | 
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| 99 | 2 | public function getGroups()  | 
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| 103 | |||
| 104 | /**  | 
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| 105 | * @inheritdoc  | 
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| 106 | */  | 
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| 107 | 2 | public function getGroup($groupID)  | 
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| 113 | |||
| 114 | /**  | 
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| 115 | * @inheritdoc  | 
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| 116 | */  | 
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| 117 | 2 | public function getGroupPrivileges($groupID)  | 
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| 123 | |||
| 124 | /**  | 
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| 125 | * @inheritdoc  | 
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| 126 | */  | 
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| 127 | 2 | public function getFiles()  | 
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| 131 | |||
| 132 | /**  | 
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| 133 | * @inheritdoc  | 
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| 134 | */  | 
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| 135 | 2 | public function getFile($fileID)  | 
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| 141 | |||
| 142 | /**  | 
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| 143 | * @inheritdoc  | 
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| 144 | */  | 
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| 145 | 2 | public function getSettings()  | 
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| 149 | |||
| 150 | /**  | 
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| 151 | * @inheritdoc  | 
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| 152 | */  | 
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| 153 | 2 | public function getSettingsByCollection($collectionName)  | 
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| 159 | |||
| 160 | /**  | 
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| 161 | * @inheritdoc  | 
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| 162 | */  | 
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| 163 | public function getMessages($userId)  | 
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| 169 | |||
| 170 | /**  | 
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| 171 | * @inheritdoc  | 
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| 172 | */  | 
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| 173 | View Code Duplication | public function createItem($tableName, array $data)  | 
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| 174 |     { | 
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| 175 | $path = $this->buildPath(static::TABLE_ENTRY_CREATE_ENDPOINT, $tableName);  | 
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| 176 | $data = $this->processData($tableName, $data);  | 
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| 177 | |||
| 178 |         return $this->performRequest('POST', $path, ['body' => $data]); | 
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| 179 | }  | 
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| 180 | |||
| 181 | /**  | 
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| 182 | * @inheritdoc  | 
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| 183 | */  | 
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| 184 | View Code Duplication | public function updateItem($tableName, $id, array $data)  | 
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| 185 |     { | 
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| 186 | $path = $this->buildPath(static::TABLE_ENTRY_UPDATE_ENDPOINT, [$tableName, $id]);  | 
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| 187 | $data = $this->processData($tableName, $data);  | 
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| 188 | |||
| 189 |         return $this->performRequest('PUT', $path, ['body' => $data]); | 
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| 190 | }  | 
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| 191 | |||
| 192 | /**  | 
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| 193 | * @inheritdoc  | 
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| 194 | */  | 
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| 195 | public function deleteItem($tableName, $id)  | 
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| 196 |     { | 
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| 197 | $path = $this->buildPath(static::TABLE_ENTRY_DELETE_ENDPOINT, [$tableName, $id]);  | 
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| 198 | |||
| 199 |         return $this->performRequest('DELETE', $path); | 
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| 200 | }  | 
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| 201 | |||
| 202 | /**  | 
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| 203 | * @inheritdoc  | 
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| 204 | */  | 
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| 205 | public function createUser(array $data)  | 
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| 209 | |||
| 210 | /**  | 
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| 211 | * @inheritdoc  | 
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| 212 | */  | 
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| 213 | public function updateUser($id, array $data)  | 
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| 217 | |||
| 218 | /**  | 
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| 219 | * @inheritdoc  | 
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| 220 | */  | 
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| 221 | public function deleteUser($ids)  | 
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| 225 | |||
| 226 | /**  | 
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| 227 | * @inheritdoc  | 
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| 228 | */  | 
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| 229 | public function createFile(File $file)  | 
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| 235 | |||
| 236 | /**  | 
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| 237 | * @inheritdoc  | 
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| 238 | */  | 
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| 239 | public function updateFile($id, $data)  | 
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| 251 | |||
| 252 | /**  | 
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| 253 | * @inheritdoc  | 
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| 254 | */  | 
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| 255 | public function deleteFile($id)  | 
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| 259 | |||
| 260 | public function createPreferences($data)  | 
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| 270 | |||
| 271 | /**  | 
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| 272 | * @inheritdoc  | 
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| 273 | */  | 
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| 274 | public function createBookmark($data)  | 
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| 293 | |||
| 294 | /**  | 
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| 295 | * @inheritdoc  | 
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| 296 | */  | 
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| 297 | public function getBookmark($id)  | 
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| 298 |     { | 
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| 303 | |||
| 304 | /**  | 
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| 305 | * @inheritdoc  | 
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| 306 | */  | 
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| 307 | public function getBookmarks($userId = null)  | 
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| 317 | |||
| 318 | /**  | 
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| 319 | * @inheritdoc  | 
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| 320 | */  | 
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| 321 | public function createColumn($data)  | 
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| 329 | |||
| 330 | /**  | 
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| 331 | * @inheritdoc  | 
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| 332 | */  | 
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| 333 | public function createGroup(array $data)  | 
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| 339 | |||
| 340 | /**  | 
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| 341 | * @inheritdoc  | 
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| 342 | */  | 
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| 343 | public function createMessage(array $data)  | 
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| 355 | |||
| 356 | /**  | 
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| 357 | * @inheritdoc  | 
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| 358 | */  | 
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| 359 | public function sendMessage(array $data)  | 
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| 363 | |||
| 364 | /**  | 
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| 365 | * @inheritdoc  | 
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| 366 | */  | 
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| 367 | public function createPrivileges(array $data)  | 
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| 375 | |||
| 376 | public function createTable($name, array $params = [])  | 
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| 387 | |||
| 388 | /**  | 
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| 389 | * @inheritdoc  | 
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| 390 | */  | 
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| 391 | public function createColumnUIOptions(array $data)  | 
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| 407 | |||
| 408 | /**  | 
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| 409 | * @inheritdoc  | 
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| 410 | */  | 
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| 411 | public function getPreferences($table, $user = null)  | 
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| 415 | |||
| 416 | /**  | 
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| 417 | * @inheritdoc  | 
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| 418 | */  | 
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| 419 | public function deleteBookmark($id)  | 
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| 423 | |||
| 424 | /**  | 
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| 425 | * @inheritdoc  | 
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| 426 | */  | 
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| 427 | public function deleteColumn($name, $table)  | 
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| 433 | |||
| 434 | /**  | 
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| 435 | * @inheritdoc  | 
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| 436 | */  | 
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| 437 | public function deleteGroup($id)  | 
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| 441 | |||
| 442 | /**  | 
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| 443 | * @inheritdoc  | 
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| 444 | */  | 
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| 445 | public function deleteTable($name)  | 
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| 451 | }  | 
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| 452 |