Complex classes like Doku_Plugin_Controller 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 Doku_Plugin_Controller, and based on these observations, apply Extract Interface, too.
1 | <?php |
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12 | class Doku_Plugin_Controller { |
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13 | |||
14 | protected $list_bytype = array(); |
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15 | protected $tmp_plugins = array(); |
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16 | protected $plugin_cascade = array('default'=>array(),'local'=>array(),'protected'=>array()); |
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17 | protected $last_local_config_file = ''; |
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18 | |||
19 | /** |
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20 | * Populates the master list of plugins |
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21 | */ |
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22 | public function __construct() { |
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26 | |||
27 | /** |
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28 | * Returns a list of available plugins of given type |
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29 | * |
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30 | * @param $type string, plugin_type name; |
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31 | * the type of plugin to return, |
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32 | * use empty string for all types |
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33 | * @param $all bool; |
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34 | * false to only return enabled plugins, |
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35 | * true to return both enabled and disabled plugins |
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36 | * |
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37 | * @return array of |
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38 | * - plugin names when $type = '' |
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39 | * - or plugin component names when a $type is given |
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40 | * |
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41 | * @author Andreas Gohr <[email protected]> |
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42 | */ |
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43 | public function getList($type='',$all=false){ |
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61 | |||
62 | /** |
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63 | * Loads the given plugin and creates an object of it |
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64 | * |
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65 | * @author Andreas Gohr <[email protected]> |
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66 | * |
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67 | * @param $type string type of plugin to load |
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68 | * @param $name string name of the plugin to load |
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69 | * @param $new bool true to return a new instance of the plugin, false to use an already loaded instance |
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70 | * @param $disabled bool true to load even disabled plugins |
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71 | * @return DokuWiki_PluginInterface|null the plugin object or null on failure |
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72 | */ |
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73 | public function load($type,$name,$new=false,$disabled=false){ |
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126 | |||
127 | /** |
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128 | * Whether plugin is disabled |
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129 | * |
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130 | * @param string $plugin name of plugin |
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131 | * @return bool true disabled, false enabled |
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132 | */ |
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133 | public function isdisabled($plugin) { |
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136 | |||
137 | /** |
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138 | * Disable the plugin |
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139 | * |
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140 | * @param string $plugin name of plugin |
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141 | * @return bool true saving succeed, false saving failed |
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142 | */ |
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143 | public function disable($plugin) { |
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148 | |||
149 | /** |
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150 | * Enable the plugin |
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151 | * |
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152 | * @param string $plugin name of plugin |
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153 | * @return bool true saving succeed, false saving failed |
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154 | */ |
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155 | public function enable($plugin) { |
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160 | |||
161 | /** |
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162 | * Returns directory name of plugin |
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163 | * |
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164 | * @param string $plugin name of plugin |
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165 | * @return string name of directory |
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166 | */ |
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167 | public function get_directory($plugin) { |
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170 | |||
171 | /** |
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172 | * Returns cascade of the config files |
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173 | * |
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174 | * @return array with arrays of plugin configs |
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175 | */ |
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176 | public function getCascade() { |
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179 | |||
180 | protected function _populateMasterList() { |
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204 | |||
205 | /** |
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206 | * Includes the plugin config $files |
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207 | * and returns the entries of the $plugins array set in these files |
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208 | * |
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209 | * @param array $files list of files to include, latter overrides previous |
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210 | * @return array with entries of the $plugins arrays of the included files |
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211 | */ |
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212 | protected function checkRequire($files) { |
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221 | |||
222 | /** |
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223 | * Save the current list of plugins |
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224 | * |
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225 | * @param bool $forceSave; |
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226 | * false to save only when config changed |
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227 | * true to always save |
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228 | * @return bool true saving succeed, false saving failed |
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229 | */ |
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230 | protected function saveList($forceSave = false) { |
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259 | |||
260 | /** |
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261 | * Rebuild the set of local plugins |
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262 | * |
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263 | * @return array array of plugins to be saved in end($config_cascade['plugins']['local']) |
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264 | */ |
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265 | protected function rebuildLocal() { |
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280 | |||
281 | /** |
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282 | * Build the list of plugins and cascade |
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283 | * |
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284 | */ |
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285 | protected function loadConfig() { |
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306 | |||
307 | /** |
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308 | * Returns a list of available plugin components of given type |
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309 | * |
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310 | * @param string $type plugin_type name; the type of plugin to return, |
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311 | * @param bool $enabled true to return enabled plugins, |
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312 | * false to return disabled plugins |
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313 | * @return array of plugin components of requested type |
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314 | */ |
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315 | protected function _getListByType($type, $enabled) { |
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346 | |||
347 | /** |
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348 | * Split name in a plugin name and a component name |
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349 | * |
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350 | * @param string $name |
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351 | * @return array with |
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352 | * - plugin name |
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353 | * - and component name when available, otherwise empty string |
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354 | */ |
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355 | protected function _splitName($name) { |
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362 | |||
363 | /** |
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364 | * Returns inverse boolean value of the input |
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365 | * |
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366 | * @param mixed $input |
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367 | * @return bool inversed boolean value of input |
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368 | */ |
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369 | protected function negate($input) { |
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372 | } |
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373 |
This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. It has, however, found a similar but not annotated parameter which might be a good fit.
Consider the following example. The parameter
$ireland
is not defined by the methodfinale(...)
.The most likely cause is that the parameter was changed, but the annotation was not.