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 $params = []) |
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30 | |||
31 | /** |
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32 | * @inheritdoc |
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33 | */ |
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34 | 4 | public function getTable($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, $columnName) |
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60 | |||
61 | /** |
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62 | * @inheritdoc |
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63 | */ |
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64 | 2 | public function getItems($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 $params = []) |
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96 | |||
97 | /** |
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98 | * @inheritdoc |
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99 | */ |
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100 | 2 | public function getGroups() |
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104 | |||
105 | /** |
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106 | * @inheritdoc |
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107 | */ |
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108 | 2 | public function getGroup($groupID) |
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114 | |||
115 | /** |
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116 | * @inheritdoc |
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117 | */ |
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118 | 2 | public function getGroupPrivileges($groupID) |
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124 | |||
125 | /** |
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126 | * @inheritdoc |
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127 | */ |
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128 | 2 | public function getFiles() |
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132 | |||
133 | /** |
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134 | * @inheritdoc |
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135 | */ |
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136 | 2 | public function getFile($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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150 | |||
151 | /** |
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152 | * @inheritdoc |
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153 | */ |
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154 | 2 | public function getSettingsByCollection($collectionName) |
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160 | |||
161 | /** |
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162 | * @inheritdoc |
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163 | */ |
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164 | public function updateSettings($collection, array $data) |
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172 | |||
173 | /** |
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174 | * @inheritdoc |
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175 | */ |
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176 | public function getMessages($userId) |
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182 | |||
183 | /** |
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184 | * @inheritdoc |
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185 | */ |
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186 | View Code Duplication | public function createItem($tableName, array $data) |
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193 | |||
194 | /** |
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195 | * @inheritdoc |
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196 | */ |
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197 | View Code Duplication | public function updateItem($tableName, $id, array $data) |
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204 | |||
205 | /** |
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206 | * @inheritdoc |
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207 | */ |
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208 | public function deleteItem($tableName, $id) |
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215 | /** |
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216 | * @inheritdoc |
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217 | */ |
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218 | public function createUser(array $data) |
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222 | |||
223 | /** |
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224 | * @inheritdoc |
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225 | */ |
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226 | public function updateUser($id, array $data) |
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230 | |||
231 | /** |
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232 | * @inheritdoc |
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233 | */ |
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234 | public function deleteUser($ids) |
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238 | |||
239 | /** |
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240 | * @inheritdoc |
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241 | */ |
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242 | public function createFile(File $file) |
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248 | |||
249 | /** |
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250 | * @inheritdoc |
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251 | */ |
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252 | public function updateFile($id, $data) |
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265 | /** |
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266 | * @inheritdoc |
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267 | */ |
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268 | public function deleteFile($id) |
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272 | |||
273 | public function createPreferences($data) |
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284 | /** |
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285 | * @inheritdoc |
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286 | */ |
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287 | public function createBookmark($data) |
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307 | /** |
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308 | * @inheritdoc |
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309 | */ |
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310 | public function getBookmark($id) |
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316 | |||
317 | /** |
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318 | * @inheritdoc |
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319 | */ |
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320 | public function getBookmarks($userId = null) |
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331 | /** |
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332 | * @inheritdoc |
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333 | */ |
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334 | public function createColumn($data) |
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342 | |||
343 | /** |
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344 | * @inheritdoc |
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345 | */ |
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346 | public function createGroup(array $data) |
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353 | /** |
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354 | * @inheritdoc |
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355 | */ |
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356 | public function createMessage(array $data) |
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369 | /** |
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370 | * @inheritdoc |
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371 | */ |
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372 | public function sendMessage(array $data) |
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377 | /** |
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378 | * @inheritdoc |
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379 | */ |
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380 | public function createPrivileges(array $data) |
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389 | public function createTable($name, array $params = []) |
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401 | /** |
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402 | * @inheritdoc |
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404 | public function createColumnUIOptions(array $data) |
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421 | /** |
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422 | * @inheritdoc |
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423 | */ |
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424 | public function getPreferences($table, $user = null) |
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428 | |||
429 | /** |
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430 | * @inheritdoc |
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431 | */ |
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432 | public function deleteBookmark($id) |
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437 | /** |
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438 | * @inheritdoc |
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439 | */ |
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440 | public function deleteColumn($name, $table) |
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446 | |||
447 | /** |
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448 | * @inheritdoc |
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449 | */ |
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450 | public function deleteGroup($id) |
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454 | |||
455 | /** |
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456 | * @inheritdoc |
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457 | */ |
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458 | public function deleteTable($name) |
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465 | /** |
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466 | * @inheritdoc |
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467 | */ |
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468 | public function getActivity(array $params = []) |
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480 | } |
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481 |