Complex classes like Body 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 Body, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 16 | abstract class Body |
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| 17 | { |
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| 18 | const SWAGGER_PROPERTIES="properties"; |
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| 19 | const SWAGGER_ADDITIONAL_PROPERTIES="additionalProperties"; |
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| 20 | const SWAGGER_REQUIRED="required"; |
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| 21 | |||
| 22 | /** |
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| 23 | * @var Schema |
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| 24 | */ |
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| 25 | protected $schema; |
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| 26 | |||
| 27 | /** |
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| 28 | * @var array |
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| 29 | */ |
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| 30 | protected $structure; |
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| 31 | |||
| 32 | /** |
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| 33 | * @var string |
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| 34 | */ |
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| 35 | protected $name; |
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| 36 | |||
| 37 | /** |
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| 38 | * OpenApi 2.0 does not describe null values, so this flag defines, |
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| 39 | * if match is ok when one of property, which has type, is null |
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| 40 | * |
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| 41 | * @var bool |
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| 42 | */ |
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| 43 | protected $allowNullValues; |
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| 44 | |||
| 45 | /** |
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| 46 | * Body constructor. |
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| 47 | * |
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| 48 | * @param Schema $schema |
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| 49 | * @param string $name |
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| 50 | * @param array $structure |
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| 51 | * @param bool $allowNullValues |
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| 52 | */ |
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| 53 | public function __construct(Schema $schema, $name, $structure, $allowNullValues = false) |
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| 54 | { |
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| 55 | $this->schema = $schema; |
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| 56 | $this->name = $name; |
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| 57 | if (!is_array($structure)) { |
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| 58 | throw new InvalidArgumentException('I expected the structure to be an array'); |
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| 59 | } |
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| 60 | $this->structure = $structure; |
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| 61 | $this->allowNullValues = $allowNullValues; |
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| 62 | } |
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| 63 | |||
| 64 | /** |
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| 65 | * @param Schema $schema |
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| 66 | * @param string $name |
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| 67 | * @param array $structure |
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| 68 | * @param bool $allowNullValues |
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| 69 | * @return OpenApiResponseBody|SwaggerResponseBody |
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| 70 | * @throws GenericSwaggerException |
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| 71 | */ |
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| 72 | public static function getInstance(Schema $schema, $name, $structure, $allowNullValues = false) |
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| 73 | { |
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| 74 | if ($schema instanceof SwaggerSchema) { |
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| 75 | return new SwaggerResponseBody($schema, $name, $structure, $allowNullValues); |
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| 76 | } |
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| 77 | |||
| 78 | if ($schema instanceof OpenApiSchema) { |
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| 79 | return new OpenApiResponseBody($schema, $name, $structure, $allowNullValues); |
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| 80 | } |
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| 81 | |||
| 82 | throw new GenericSwaggerException("Cannot get instance SwaggerBody or SchemaBody from " . get_class($schema)); |
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| 83 | } |
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| 84 | |||
| 85 | abstract public function match($body); |
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| 86 | |||
| 87 | /** |
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| 88 | * @param string $name |
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| 89 | * @param array $schemaArray |
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| 90 | * @param string $body |
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| 91 | * @param string $type |
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| 92 | * @return bool |
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| 93 | * @throws NotMatchedException |
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| 94 | */ |
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| 95 | protected function matchString($name, $schemaArray, $body, $type) |
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| 111 | |||
| 112 | private function checkPattern($name, $body, $pattern) |
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| 120 | |||
| 121 | |||
| 122 | /** |
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| 123 | * @param string $name |
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| 124 | * @param array $schemaArray |
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| 125 | * @param string $body |
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| 126 | * @param string $type |
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| 127 | * @return bool |
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| 128 | */ |
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| 129 | protected function matchFile($name, $schemaArray, $body, $type) |
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| 137 | |||
| 138 | /** |
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| 139 | * @param string $name |
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| 140 | * @param string $body |
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| 141 | * @param string $type |
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| 142 | * @return bool |
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| 143 | * @throws NotMatchedException |
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| 144 | */ |
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| 145 | protected function matchNumber($name, $body, $type) |
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| 161 | |||
| 162 | /** |
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| 163 | * @param string $name |
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| 164 | * @param string $body |
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| 165 | * @param string $type |
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| 166 | * @return bool |
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| 167 | * @throws NotMatchedException |
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| 168 | */ |
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| 169 | protected function matchBool($name, $body, $type) |
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| 181 | |||
| 182 | /** |
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| 183 | * @param string $name |
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| 184 | * @param array $schemaArray |
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| 185 | * @param string $body |
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| 186 | * @param string $type |
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| 187 | * @return bool |
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| 188 | * @throws DefinitionNotFoundException |
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| 189 | * @throws GenericSwaggerException |
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| 190 | * @throws InvalidDefinitionException |
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| 191 | * @throws InvalidRequestException |
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| 192 | * @throws NotMatchedException |
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| 193 | */ |
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| 194 | protected function matchArray($name, $schemaArray, $body, $type) |
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| 208 | |||
| 209 | /** |
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| 210 | * @param string $name |
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| 211 | * @param array $schemaArray |
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| 212 | * @param string $body |
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| 213 | * @return mixed|null |
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| 214 | */ |
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| 215 | protected function matchTypes($name, $schemaArray, $body) |
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| 265 | |||
| 266 | /** |
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| 267 | * @param string $name |
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| 268 | * @param array $schemaArray |
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| 269 | * @param string $body |
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| 270 | * @return bool|null |
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| 271 | * @throws DefinitionNotFoundException |
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| 272 | * @throws GenericSwaggerException |
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| 273 | * @throws InvalidDefinitionException |
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| 274 | * @throws InvalidRequestException |
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| 275 | * @throws NotMatchedException |
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| 276 | */ |
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| 277 | public function matchObjectProperties($name, $schemaArray, $body) |
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| 340 | |||
| 341 | /** |
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| 342 | * @param string $name |
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| 343 | * @param array $schemaArray |
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| 344 | * @param array $body |
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| 345 | * @return bool |
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| 346 | * @throws DefinitionNotFoundException |
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| 347 | * @throws InvalidDefinitionException |
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| 348 | * @throws GenericSwaggerException |
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| 349 | * @throws InvalidRequestException |
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| 350 | * @throws NotMatchedException |
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| 351 | */ |
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| 352 | protected function matchSchema($name, $schemaArray, $body) |
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| 408 | |||
| 409 | /** |
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| 410 | * @param string $name |
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| 411 | * @param string $body |
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| 412 | * @param string $type |
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| 413 | * @param bool $nullable |
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| 414 | * @return bool |
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| 415 | * @throws NotMatchedException |
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| 416 | */ |
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| 417 | protected function matchNull($name, $body, $type, $nullable) |
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| 432 | } |
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| 433 |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.