Complex classes like AbstractResource 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 AbstractResource, and based on these observations, apply Extract Interface, too.
1 | <?php |
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9 | abstract class AbstractResource |
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10 | { |
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11 | /** |
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12 | * @var Request |
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13 | */ |
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14 | protected $request; |
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15 | |||
16 | /** |
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17 | * @var array |
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18 | */ |
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19 | protected $actions = []; |
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20 | |||
21 | /** |
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22 | * @var array |
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23 | */ |
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24 | protected $childResources = []; |
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25 | |||
26 | /** |
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27 | * AbstractResource constructor. |
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28 | * @param Request $request |
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29 | */ |
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30 | 5 | public function __construct(Request $request) |
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34 | |||
35 | /** |
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36 | * @param string $action |
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37 | * @return array |
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38 | * @throws ClientException |
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39 | */ |
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40 | 133 | public function getAction(string $action): array |
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48 | |||
49 | /** |
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50 | * @return Request |
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51 | */ |
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52 | 1 | public function getRequest() |
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56 | |||
57 | /** |
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58 | * @param string $action |
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59 | * @return bool |
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60 | */ |
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61 | 133 | public function hasAction(string $action): bool |
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69 | |||
70 | /** |
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71 | * @return array |
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72 | */ |
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73 | 5 | public function getChildResources(): array |
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77 | |||
78 | /** |
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79 | * @param string $action |
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80 | * @param float|null $parentId |
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81 | * @param float|null $childId |
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82 | * @param float|null $childChildId |
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83 | * @param array|null $parameters |
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84 | * @return array|bool |
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85 | */ |
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86 | 133 | protected function request( |
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101 | |||
102 | /** |
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103 | * @param string $action |
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104 | * @param float|null $parentId |
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105 | * @param float|null $childId |
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106 | * @param float|null $childChildId |
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107 | * @return string |
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108 | * @throws ClientException |
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109 | */ |
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110 | 131 | protected function getEndpoint(string $action, float $parentId = null, float $childId = null, float $childChildId = null): string |
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132 | |||
133 | /** |
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134 | * @param string $action |
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135 | * @return string |
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136 | * @throws ClientException |
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137 | */ |
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138 | 132 | protected function getMethod(string $action): string |
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148 | |||
149 | /** |
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150 | * @param string $action |
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151 | * @return string |
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152 | */ |
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153 | 52 | protected function getResourceKey(string $action): string |
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163 | |||
164 | /** |
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165 | * @param string $action |
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166 | * @return string |
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167 | */ |
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168 | 133 | protected function getResponseKey(string $action): string |
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178 | |||
179 | /** |
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180 | * @param string $action |
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181 | * @param array $parameters |
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182 | * @return array |
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183 | */ |
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184 | 130 | private function getRequestOptions(string $action, array $parameters): array |
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211 | |||
212 | /** |
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213 | * @param string $method |
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214 | * @param array|null $arguments |
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215 | * @return array|bool |
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216 | */ |
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217 | 133 | public function __call(string $method, array $arguments = []) |
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256 | } |
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257 |
The break statement is not necessary if it is preceded for example by a return statement:
If you would like to keep this construct to be consistent with other case statements, you can safely mark this issue as a false-positive.