Complex classes like HttpClient 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 HttpClient, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 12 | class HttpClient |
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| 13 | { |
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| 14 | /** |
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| 15 | * The default request options. |
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| 16 | * |
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| 17 | * @var array |
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| 18 | */ |
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| 19 | protected static $defaultOptions = [ |
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| 20 | 'connect_timeout' => 5, |
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| 21 | 'timeout' => 25, |
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| 22 | ]; |
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| 23 | |||
| 24 | /** |
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| 25 | * The Guzzle client. |
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| 26 | * |
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| 27 | * @var \GuzzleHttp\Client |
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| 28 | */ |
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| 29 | protected $client; |
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| 30 | |||
| 31 | /** |
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| 32 | * The Guzzle response. |
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| 33 | * |
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| 34 | * @var \GuzzleHttp\Psr7\Response |
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| 35 | */ |
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| 36 | protected $response; |
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| 37 | |||
| 38 | /** |
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| 39 | * The request options. |
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| 40 | * |
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| 41 | * @var array |
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| 42 | */ |
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| 43 | protected $options = []; |
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| 44 | |||
| 45 | /** |
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| 46 | * Indicates whether throws Guzzle exceptions. |
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| 47 | * |
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| 48 | * @var bool |
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| 49 | */ |
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| 50 | protected $withExceptions = false; |
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| 51 | |||
| 52 | /** |
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| 53 | * Get the default request options. |
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| 54 | * |
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| 55 | * @return array |
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| 56 | */ |
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| 57 | 24 | public static function defaultOptions() |
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| 61 | |||
| 62 | /** |
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| 63 | * Set the default request options. |
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| 64 | * |
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| 65 | * @param array $options |
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| 66 | * @return void |
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| 67 | */ |
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| 68 | 1 | public static function setDefaultOptions(array $options) |
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| 72 | |||
| 73 | /** |
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| 74 | * Create a http client instance. |
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| 75 | * |
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| 76 | * @param array|string|\Psr\Http\Message\UriInterface $config base URI or any request options |
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| 77 | */ |
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| 78 | 23 | public function __construct($config = []) |
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| 90 | |||
| 91 | /** |
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| 92 | * Get the Guzzle client instance. |
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| 93 | * |
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| 94 | * @return \GuzzleHttp\Client |
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| 95 | */ |
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| 96 | 2 | public function getClient() |
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| 100 | |||
| 101 | /** |
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| 102 | * Trun on/off Guzzle exceptions. |
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| 103 | * |
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| 104 | * @param bool $throws |
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| 105 | * @return $this |
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| 106 | */ |
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| 107 | 1 | public function withExceptions($throws) |
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| 113 | |||
| 114 | /** |
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| 115 | * Get the request options. |
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| 116 | * |
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| 117 | * @return array |
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| 118 | */ |
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| 119 | 9 | public function getOptions() |
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| 123 | |||
| 124 | /** |
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| 125 | * Merge request options. |
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| 126 | * |
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| 127 | * @param array $options |
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| 128 | * @return $this |
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| 129 | */ |
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| 130 | 2 | public function options(array ...$options) |
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| 136 | |||
| 137 | /** |
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| 138 | * Remove one or many options using "dot" notation. |
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| 139 | * |
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| 140 | * @param string|array|null $key |
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| 141 | * @return $this |
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| 142 | */ |
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| 143 | 16 | public function removeOptions($key = null) |
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| 153 | |||
| 154 | /** |
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| 155 | * Set a request option using "dot" notation. |
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| 156 | * |
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| 157 | * @param string $key |
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| 158 | * @param mixed $value |
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| 159 | * @return $this |
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| 160 | */ |
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| 161 | 7 | public function option($key, $value) |
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| 169 | |||
| 170 | /** |
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| 171 | * Get a request option using "dot" notation. |
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| 172 | * |
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| 173 | * @param string $key |
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| 174 | * @return mixed |
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| 175 | */ |
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| 176 | 3 | public function getOption($key) |
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| 180 | |||
| 181 | /** |
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| 182 | * Set the request header. |
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| 183 | * |
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| 184 | * @param string $name |
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| 185 | * @param mixed $value |
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| 186 | * @return $this |
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| 187 | */ |
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| 188 | 4 | public function header($name, $value) |
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| 192 | |||
| 193 | /** |
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| 194 | * Set the request content type. |
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| 195 | * |
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| 196 | * @param string $type |
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| 197 | * @return $this |
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| 198 | */ |
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| 199 | 1 | public function contentType($type) |
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| 203 | |||
| 204 | /** |
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| 205 | * Set the request accept type. |
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| 206 | * |
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| 207 | * @param string $type |
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| 208 | * @return $this |
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| 209 | */ |
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| 210 | 2 | public function accept($type) |
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| 214 | |||
| 215 | /** |
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| 216 | * Set the request accept type to JSON. |
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| 217 | * |
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| 218 | * @return $this |
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| 219 | */ |
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| 220 | 1 | public function acceptJson() |
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| 224 | |||
| 225 | /** |
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| 226 | * Specify where the body of a response will be saved. |
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| 227 | * Set the "sink" option. |
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| 228 | * |
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| 229 | * @param mixed $value |
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| 230 | * @return $this |
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| 231 | */ |
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| 232 | 1 | public function saveTo($value) |
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| 236 | |||
| 237 | /** |
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| 238 | * Get the Guzzle response instance. |
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| 239 | * |
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| 240 | * @return \GuzzleHttp\Psr7\Response|null |
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| 241 | */ |
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| 242 | 8 | public function getResponse() |
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| 246 | |||
| 247 | /** |
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| 248 | * Get the status code of response. |
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| 249 | * |
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| 250 | * @return int |
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| 251 | */ |
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| 252 | public function getStatusCode() |
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| 258 | |||
| 259 | /** |
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| 260 | * Get the response header value. |
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| 261 | * |
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| 262 | * @param string $name |
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| 263 | * @return mixed |
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| 264 | */ |
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| 265 | public function getHeader($name) |
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| 271 | |||
| 272 | /** |
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| 273 | * Get all response headers values. |
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| 274 | * |
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| 275 | * @return array |
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| 276 | */ |
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| 277 | public function getHeaders() |
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| 281 | |||
| 282 | /** |
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| 283 | * Get response body. |
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| 284 | * |
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| 285 | * @return \GuzzleHttp\Psr7\Stream|null |
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| 286 | */ |
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| 287 | 2 | public function getBody() |
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| 293 | |||
| 294 | /** |
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| 295 | * Get response content. |
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| 296 | * |
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| 297 | * @return string|null |
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| 298 | */ |
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| 299 | 2 | public function getContent() |
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| 305 | |||
| 306 | /** |
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| 307 | * Get JSON decoded response content. |
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| 308 | * |
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| 309 | * @param bool $assoc |
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| 310 | * @return mixed |
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| 311 | */ |
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| 312 | 1 | public function getJson($assoc = true) |
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| 318 | |||
| 319 | /** |
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| 320 | * Make request to a URL. |
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| 321 | * |
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| 322 | * @param string $url |
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| 323 | * @param string $method |
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| 324 | * @param array $options |
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| 325 | * @return $this |
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| 326 | */ |
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| 327 | 9 | public function request($url, $method = 'GET', $options = []) |
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| 341 | |||
| 342 | /** |
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| 343 | * Make request to a URL, expecting JSON content. |
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| 344 | * |
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| 345 | * @param string $url |
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| 346 | * @param string $method |
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| 347 | * @param array $options |
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| 348 | * @return $this |
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| 349 | */ |
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| 350 | 3 | public function requestJson($url, $method = 'GET', $options = []) |
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| 356 | |||
| 357 | /** |
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| 358 | * Request the URL and return the response content. |
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| 359 | * |
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| 360 | * @param string $url |
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| 361 | * @param string $method |
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| 362 | * @param array $options |
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| 363 | * @return string|null |
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| 364 | */ |
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| 365 | 1 | public function fetchContent($url, $method = 'GET', $options = []) |
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| 369 | |||
| 370 | /** |
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| 371 | * Request the URL and return the JSON decoded response content. |
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| 372 | * |
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| 373 | * @param string $url |
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| 374 | * @param string $method |
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| 375 | * @param array $options |
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| 376 | * @param bool $assoc |
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| 377 | * @return mixed |
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| 378 | */ |
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| 379 | 1 | public function fetchJson($url, $method = 'GET', $options = [], $assoc = true) |
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| 383 | |||
| 384 | 3 | public function __call($method, $args) |
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| 401 | } |
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| 402 |