Complex classes like TKernel 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 TKernel, and based on these observations, apply Extract Interface, too.
1 | <?php |
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15 | trait TKernel |
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16 | { |
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17 | |||
18 | /** |
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19 | * app path |
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20 | * |
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21 | * @var string |
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22 | */ |
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23 | protected $path; |
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24 | |||
25 | /** |
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26 | * app environment |
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27 | * |
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28 | * @var string |
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29 | */ |
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30 | protected $env; |
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31 | |||
32 | /** |
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33 | * app config |
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34 | * |
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35 | * @var Config |
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36 | */ |
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37 | protected $config; |
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38 | |||
39 | /** |
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40 | * service container |
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41 | * |
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42 | * @var Container |
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43 | */ |
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44 | protected $container; |
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45 | |||
46 | /** |
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47 | * monolog logger |
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48 | * |
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49 | * @var Logger |
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50 | */ |
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51 | protected $logger; |
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52 | |||
53 | /** |
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54 | * app request |
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55 | * |
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56 | * @var Request |
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57 | */ |
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58 | protected $req; |
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59 | |||
60 | /** |
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61 | * app response |
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62 | * |
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63 | * @var Response |
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64 | */ |
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65 | protected $res; |
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66 | |||
67 | /** |
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68 | * app router |
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69 | * |
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70 | * @var Router |
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71 | */ |
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72 | protected $router; |
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73 | |||
74 | /** |
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75 | * ctrl class name |
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76 | * |
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77 | * @var string |
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78 | */ |
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79 | protected $className; |
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80 | |||
81 | /** |
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82 | * controller namespace |
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83 | * |
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84 | * @var string |
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85 | */ |
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86 | protected $spacename; |
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87 | |||
88 | /** |
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89 | * controller instance |
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90 | * |
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91 | * @var mixed |
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92 | */ |
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93 | protected $controller; |
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94 | |||
95 | /** |
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96 | * reflection class instance |
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97 | * |
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98 | * @var ReflectionClass |
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99 | */ |
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100 | protected $reflector; |
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101 | |||
102 | /** |
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103 | * controller actions |
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104 | * |
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105 | * @var array |
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106 | */ |
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107 | protected $actions; |
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108 | |||
109 | /** |
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110 | * controller action |
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111 | * |
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112 | * @var string |
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113 | */ |
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114 | protected $action; |
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115 | |||
116 | /** |
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117 | * action annotations |
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118 | * |
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119 | * @var string |
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120 | */ |
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121 | protected $actionAnnotations; |
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122 | |||
123 | /** |
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124 | * middlewares stack |
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125 | * |
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126 | * @var array |
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127 | */ |
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128 | protected $middlewares; |
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129 | |||
130 | /** |
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131 | * run error |
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132 | * |
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133 | * @var Boolean |
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134 | */ |
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135 | protected $error; |
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136 | |||
137 | /** |
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138 | * http status error code |
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139 | * |
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140 | * @var int |
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141 | */ |
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142 | protected $errorCode; |
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143 | |||
144 | /** |
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145 | * error message |
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146 | * |
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147 | * @var string |
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148 | */ |
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149 | protected $errorMsg; |
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150 | |||
151 | /** |
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152 | * return service container for service name |
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153 | * |
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154 | * @param string $serviceName |
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155 | * @throws Exception |
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156 | * @return object |
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157 | */ |
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158 | 26 | public function getService(string $serviceName) |
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162 | |||
163 | /** |
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164 | * init kernel |
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165 | * |
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166 | * @param string $env |
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167 | * @param string $path |
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168 | * @return void |
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169 | */ |
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170 | 2 | protected function init(string $env, string $path) |
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189 | |||
190 | /** |
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191 | * execute controller action in middleware core closure |
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192 | * |
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193 | * @return void |
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194 | */ |
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195 | 3 | protected function execute(...$args) |
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215 | |||
216 | /** |
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217 | * invoke action from a controller an return exec code. |
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218 | * for testing purpose return retValue if false |
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219 | * |
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220 | * @param array $args |
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221 | * @return mixed |
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222 | */ |
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223 | 1 | protected function invokeAction(...$args) |
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227 | |||
228 | /** |
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229 | * return controller instance |
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230 | * |
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231 | * @return mixed |
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232 | */ |
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233 | 3 | protected function getController() |
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237 | |||
238 | /** |
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239 | * set middlewares from config then run before/after layers around core |
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240 | * |
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241 | */ |
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242 | 1 | protected function setMiddleware() |
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259 | |||
260 | /** |
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261 | * set action annotations for runnig action |
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262 | * |
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263 | */ |
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264 | 1 | protected function setActionAnnotations() |
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277 | |||
278 | /** |
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279 | * return action docblock as string |
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280 | * |
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281 | * @return string |
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282 | */ |
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283 | 1 | protected function getActionAnnotations(): string |
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287 | |||
288 | /** |
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289 | * return true if action is valid |
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290 | * |
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291 | * @return boolean |
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292 | */ |
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293 | 5 | protected function isValidAction(): bool |
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297 | |||
298 | /** |
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299 | * instanciate controller for a classname |
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300 | * |
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301 | * @return void |
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302 | */ |
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303 | 4 | protected function setController() |
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307 | |||
308 | /** |
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309 | * set relflector on class name |
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310 | * |
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311 | */ |
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312 | 8 | protected function setReflector() |
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316 | |||
317 | /** |
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318 | * return reflexion class on current classname |
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319 | * |
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320 | * @return ReflectionClass |
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321 | */ |
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322 | 1 | protected function getReflector(): ReflectionClass |
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326 | |||
327 | /** |
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328 | * return core controller action |
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329 | * |
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330 | * @return string |
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331 | */ |
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332 | 1 | protected function getAction(): string |
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336 | |||
337 | /** |
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338 | * set public final actions from controller class name |
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339 | * |
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340 | */ |
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341 | 8 | protected function setActions() |
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349 | |||
350 | /** |
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351 | * get final methods for the current classname |
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352 | * |
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353 | * @return array |
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354 | */ |
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355 | 1 | protected function getFinalMethods(): array |
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361 | |||
362 | /** |
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363 | * return public final actions from controller class name |
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364 | * |
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365 | */ |
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366 | 4 | protected function getActions(): array |
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370 | |||
371 | /** |
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372 | * set service container |
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373 | * |
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374 | */ |
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375 | 1 | protected function setContainer() |
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385 | |||
386 | /** |
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387 | * get service container |
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388 | * |
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389 | */ |
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390 | 2 | protected function getContainer(): Container |
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394 | |||
395 | /** |
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396 | * set request |
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397 | * |
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398 | */ |
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399 | 1 | protected function setRequest() |
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403 | |||
404 | /** |
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405 | * return request |
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406 | * |
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407 | */ |
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408 | 1 | protected function getRequest(): Request |
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412 | |||
413 | /** |
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414 | * set response |
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415 | * |
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416 | */ |
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417 | 1 | protected function setResponse() |
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421 | |||
422 | /** |
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423 | * return reponse |
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424 | * |
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425 | */ |
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426 | 1 | protected function getResponse(): Response |
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430 | |||
431 | /** |
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432 | * set router |
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433 | * |
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434 | */ |
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435 | 1 | protected function setRouter() |
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439 | |||
440 | /** |
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441 | * return router |
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442 | * |
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443 | */ |
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444 | 1 | protected function getRouter(): Router |
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448 | |||
449 | /** |
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450 | * set controller class name |
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451 | * |
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452 | * @param array $routerGroups |
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453 | */ |
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454 | 8 | protected function setClassname(array $routerGroups) |
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462 | |||
463 | /** |
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464 | * set controller class name |
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465 | * |
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466 | */ |
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467 | 4 | protected function getClassname(): string |
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471 | |||
472 | /** |
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473 | * set app config |
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474 | * |
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475 | */ |
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476 | 1 | protected function setConfig() |
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483 | |||
484 | /** |
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485 | * returns config |
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486 | * |
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487 | * @return Config |
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488 | */ |
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489 | 1 | protected function getConfig(): Config |
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493 | |||
494 | /** |
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495 | * set app logger |
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496 | * |
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497 | */ |
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498 | 1 | protected function setLogger() |
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516 | |||
517 | /** |
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518 | * return monolog logger with handlers set |
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519 | * |
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520 | * @return Logger |
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521 | */ |
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522 | 2 | public function getLogger(): Logger |
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526 | |||
527 | /** |
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528 | * set app root path |
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529 | * |
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530 | */ |
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531 | 1 | protected function setPath(string $path) |
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535 | |||
536 | /** |
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537 | * return kernel run path |
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538 | * |
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539 | * @return string |
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540 | */ |
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541 | 2 | protected function getPath(): string |
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545 | |||
546 | /** |
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547 | * set kernel error |
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548 | * |
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549 | */ |
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550 | 2 | protected function setError(bool $error) |
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554 | |||
555 | /** |
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556 | * return kernel error |
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557 | * |
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558 | */ |
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559 | 5 | protected function getError(): bool |
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563 | |||
564 | /** |
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565 | * return kernel error message |
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566 | * |
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567 | */ |
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568 | 3 | protected function getErrorMsg(): string |
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572 | } |
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573 |