Complex classes like XmlrpcDecoder 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 XmlrpcDecoder, and based on these observations, apply Extract Interface, too.
1 | <?php namespace Comodojo\Xmlrpc; |
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24 | class XmlrpcDecoder { |
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25 | |||
26 | private $is_fault = false; |
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27 | |||
28 | 21 | public function __construct() { |
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33 | |||
34 | /** |
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35 | * Decode an xmlrpc response |
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36 | * |
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37 | * @param string $response |
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38 | * |
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39 | * @return array |
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40 | * |
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41 | * @throws \Comodojo\Exception\XmlrpcException |
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42 | */ |
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43 | 12 | public function decodeResponse($response) { |
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74 | |||
75 | 3 | public function isFault() { |
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80 | |||
81 | /** |
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82 | * Decode an xmlrpc request. |
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83 | * |
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84 | * Can handle single or multicall requests and return an array of: [method], [data] |
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85 | * |
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86 | * WARNING: in case of multicall, it will not throw any exception for an invalid |
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87 | * boxcarred request; a null value will be placed instead of array(method,params). |
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88 | * |
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89 | * @param string $request |
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90 | * |
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91 | * @return array |
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92 | * |
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93 | * @throws \Comodojo\Exception\XmlrpcException |
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94 | */ |
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95 | 9 | public function decodeCall($request) { |
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138 | |||
139 | /** |
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140 | * Decode an xmlrpc multicall |
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141 | * |
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142 | * @param string $request |
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143 | * |
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144 | * @return array |
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145 | * |
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146 | * @throws \Comodojo\Exception\XmlrpcException |
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147 | */ |
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148 | public function decodeMulticall($request) { |
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171 | |||
172 | /** |
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173 | * Decode a value from xmlrpc data |
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174 | * |
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175 | * @param mixed $value |
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176 | * |
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177 | * @return mixed |
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178 | * |
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179 | * @throws \Comodojo\Exception\XmlrpcException |
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180 | */ |
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181 | 15 | private function decodeValue($value) { |
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240 | |||
241 | /** |
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242 | * Decode an XML-RPC <base64> element |
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243 | */ |
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244 | private function decodeBase($base64) { |
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249 | |||
250 | /** |
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251 | * Decode an XML-RPC <boolean> element |
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252 | */ |
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253 | 3 | private function decodeBool($boolean) { |
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258 | |||
259 | /** |
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260 | * Decode an XML-RPC <dateTime.iso8601> element |
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261 | */ |
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262 | private function decodeIso8601Datetime($date_time) { |
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267 | |||
268 | /** |
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269 | * Decode an XML-RPC <double> element |
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270 | */ |
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271 | private function decodeDouble($double) { |
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276 | |||
277 | /** |
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278 | * Decode an XML-RPC <int> or <i4> element |
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279 | */ |
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280 | 6 | private function decodeInt($int) { |
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285 | |||
286 | /** |
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287 | * Decode an XML-RPC <string> |
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288 | */ |
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289 | 18 | private function decodeString($string) { |
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294 | |||
295 | /** |
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296 | * Decode an XML-RPC <nil/> |
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297 | */ |
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298 | private function decodeNil() { |
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303 | |||
304 | /** |
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305 | * Decode an XML-RPC <struct> |
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306 | */ |
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307 | 12 | private function decodeStruct($struct) { |
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322 | |||
323 | /** |
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324 | * Decode an XML-RPC <array> element |
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325 | */ |
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326 | 12 | private function decodeArray($array) { |
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339 | |||
340 | /** |
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341 | * Decode an XML-RPC multicall request (internal) |
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342 | * @param \SimpleXMLElement $xml_data |
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343 | */ |
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344 | 6 | private function multicallDecode($xml_data) { |
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369 | |||
370 | } |
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371 |
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()
can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.