Complex classes like SimpleMetadataProvider 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 SimpleMetadataProvider, and based on these observations, apply Extract Interface, too.
1 | <?php |
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13 | class SimpleMetadataProvider implements IMetadataProvider |
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14 | { |
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15 | public $OdataEntityMap = []; |
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16 | protected $resourceSets = []; |
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17 | protected $resourceTypes = []; |
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18 | protected $associationSets = []; |
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19 | protected $containerName; |
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20 | protected $namespaceName; |
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21 | private $metadataManager; |
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22 | |||
23 | /** |
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24 | * @param string $containerName container name for the datasource |
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25 | * @param string $namespaceName namespace for the datasource |
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26 | */ |
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27 | public function __construct($containerName, $namespaceName) |
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28 | { |
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29 | $this->containerName = $containerName; |
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30 | $this->namespaceName = $namespaceName; |
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31 | $this->metadataManager = new MetadataManager($namespaceName, $containerName); |
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32 | } |
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33 | |||
34 | //Begin Implementation of IMetadataProvider |
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35 | |||
36 | public function getXML() |
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40 | |||
41 | /** |
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42 | * get the Container name for the data source. |
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43 | * |
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44 | * @return string container name |
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45 | */ |
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46 | public function getContainerName() |
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50 | |||
51 | /** |
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52 | * get Namespace name for the data source. |
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53 | * |
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54 | * @return string namespace |
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55 | */ |
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56 | public function getContainerNamespace() |
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60 | |||
61 | /** |
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62 | * get all entity set information. |
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63 | * |
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64 | * @return ResourceSet[] |
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65 | */ |
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66 | public function getResourceSets($params = null) |
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93 | |||
94 | /** |
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95 | * get all resource types in the data source. |
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96 | * |
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97 | * @return ResourceType[] |
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98 | */ |
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99 | public function getTypes() |
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103 | |||
104 | /** |
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105 | * get a resource set based on the specified resource set name. |
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106 | * |
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107 | * @param string $name Name of the resource set |
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108 | * |
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109 | * @return ResourceSet|null resource set with the given name if found else NULL |
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110 | */ |
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111 | public function resolveResourceSet($name) |
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118 | |||
119 | /** |
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120 | * get a resource type based on the resource type name. |
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121 | * |
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122 | * @param string $name Name of the resource type |
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123 | * |
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124 | * @return ResourceType|null resource type with the given resource type name if found else NULL |
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125 | */ |
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126 | public function resolveResourceType($name) |
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133 | |||
134 | /** |
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135 | * get a resource set based on the specified resource association set name. |
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136 | * |
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137 | * @param string $name Name of the resource assocation set |
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138 | * |
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139 | * @return ResourceAssociationSet|null resource association set with the given name if found else NULL |
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140 | */ |
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141 | public function resolveAssociationSet($name) |
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148 | |||
149 | /* |
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150 | * Get number of association sets hooked up |
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151 | */ |
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152 | public function getAssociationCount() |
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156 | |||
157 | /** |
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158 | * The method must return a collection of all the types derived from |
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159 | * $resourceType The collection returned should NOT include the type |
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160 | * passed in as a parameter. |
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161 | * |
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162 | * @param ResourceType $resourceType Resource to get derived resource types from |
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163 | * |
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164 | * @return ResourceType[] |
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165 | */ |
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166 | public function getDerivedTypes(ResourceType $resourceType) |
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170 | |||
171 | /** |
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172 | * @param ResourceType $resourceType Resource to check for derived resource types |
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173 | * |
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174 | * @return bool true if $resourceType represents an Entity Type which has derived Entity Types, else false |
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175 | */ |
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176 | public function hasDerivedTypes(ResourceType $resourceType) |
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180 | |||
181 | //End Implementation of IMetadataProvider |
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182 | |||
183 | /** |
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184 | * Gets the ResourceAssociationSet instance for the given source |
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185 | * association end. |
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186 | * |
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187 | * @param ResourceSet $sourceResourceSet Resource set |
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188 | * of the source |
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189 | * association end |
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190 | * @param ResourceType $sourceResourceType Resource type of the source |
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191 | * association end |
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192 | * @param ResourceProperty $targetResourceProperty Resource property of |
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193 | * the source |
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194 | * association end |
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195 | * |
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196 | * @return ResourceAssociationSet|null |
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197 | */ |
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198 | public function getResourceAssociationSet( |
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237 | |||
238 | /** |
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239 | * Add an entity type. |
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240 | * |
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241 | * @param \ReflectionClass $refClass reflection class of the entity |
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242 | * @param string $name name of the entity |
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243 | * @param string $namespace namespace of the data source |
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244 | * |
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245 | * @throws InvalidOperationException when the name is already in use |
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246 | * |
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247 | * @return ResourceType |
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248 | */ |
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249 | public function addEntityType(\ReflectionClass $refClass, $name, $namespace = null) |
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253 | |||
254 | /** |
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255 | * @param \ReflectionClass $refClass |
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256 | * @param string $name |
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257 | * @param string|null $namespace |
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258 | * @param $typeKind |
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259 | * @param null|ResourceType $baseResourceType |
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260 | * |
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261 | * @throws InvalidOperationException |
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262 | * |
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263 | * @return ResourceType |
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264 | */ |
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265 | private function createResourceType( |
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287 | |||
288 | /** |
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289 | * Add a complex type. |
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290 | * |
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291 | * @param \ReflectionClass $refClass reflection class of the complex entity type |
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292 | * @param string $name name of the entity |
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293 | * @param string $namespace namespace of the data source |
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294 | * @param ResourceType $baseResourceType base resource type |
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295 | * |
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296 | * @throws InvalidOperationException when the name is already in use |
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297 | * |
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298 | * @return ResourceType |
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299 | */ |
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300 | public function addComplexType(\ReflectionClass $refClass, $name, $namespace = null, $baseResourceType = null) |
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304 | |||
305 | /** |
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306 | * @param string $name name of the resource set |
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307 | * @param ResourceType $resourceType resource type |
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308 | * |
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309 | * @throws InvalidOperationException |
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310 | * |
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311 | * @return ResourceSet |
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312 | */ |
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313 | public function addResourceSet($name, ResourceType $resourceType) |
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327 | |||
328 | /** |
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329 | * To add a Key-primitive property to a resource (Complex/Entity). |
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330 | * |
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331 | * @param ResourceType $resourceType resource type to which key property |
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332 | * is to be added |
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333 | * @param string $name name of the key property |
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334 | * @param TypeCode $typeCode type of the key property |
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335 | */ |
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336 | public function addKeyProperty($resourceType, $name, $typeCode) |
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340 | |||
341 | /** |
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342 | * To add a Key/NonKey-primitive property to a resource (complex/entity). |
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343 | * |
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344 | * @param ResourceType $resourceType Resource type |
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345 | * @param string $name name of the property |
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346 | * @param TypeCode $typeCode type of property |
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347 | * @param bool $isKey property is key or not |
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348 | * @param bool $isBag property is bag or not |
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349 | * @param bool $isETagProperty property is etag or not |
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350 | */ |
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351 | private function _addPrimitivePropertyInternal( |
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398 | |||
399 | /** |
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400 | * @param string $name |
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401 | * @param ResourceType $resourceType |
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402 | * |
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403 | * @throws InvalidOperationException |
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404 | */ |
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405 | private function checkInstanceProperty($name, ResourceType $resourceType) |
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422 | |||
423 | /** |
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424 | * To add a NonKey-primitive property (Complex/Entity). |
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425 | * |
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426 | * @param ResourceType $resourceType resource type to which key property |
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427 | * is to be added |
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428 | * @param string $name name of the key property |
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429 | * @param TypeCode $typeCode type of the key property |
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430 | * @param bool $isBag property is bag or not |
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431 | */ |
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432 | public function addPrimitiveProperty($resourceType, $name, $typeCode, $isBag = false) |
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436 | |||
437 | /** |
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438 | * To add a non-key etag property. |
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439 | * |
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440 | * @param ResourceType $resourceType resource type to which key property |
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441 | * is to be added |
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442 | * @param string $name name of the property |
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443 | * @param TypeCode $typeCode type of the etag property |
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444 | */ |
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445 | public function addETagProperty($resourceType, $name, $typeCode) |
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449 | |||
450 | /** |
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451 | * To add a resource reference property. |
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452 | * |
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453 | * @param ResourceType $resourceType The resource type to add the resource |
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454 | * reference property to |
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455 | * @param string $name The name of the property to add |
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456 | * @param ResourceSet $targetResourceSet The resource set the resource reference |
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457 | * property points to |
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458 | */ |
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459 | public function addResourceReferenceProperty($resourceType, $name, $targetResourceSet) |
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468 | |||
469 | /** |
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470 | * To add a 1:N resource reference property. |
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471 | * |
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472 | * @param ResourceType $sourceResourceType The resource type to add the resource |
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473 | * reference property from |
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474 | * @param ResourceType $targetResourceType The resource type to add the resource |
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475 | * reference property to |
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476 | * @param string $sourceProperty The name of the property to add, on source type |
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477 | * @param string $targetProperty The name of the property to add, on target type |
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478 | */ |
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479 | public function addResourceReferencePropertyBidirectional( |
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494 | |||
495 | /** |
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496 | * To add a navigation property (resource set or resource reference) |
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497 | * to a resource type. |
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498 | * |
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499 | * @param ResourceType $sourceResourceType The resource type to add |
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500 | * the resource reference |
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501 | * or resource |
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502 | * reference set property to |
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503 | * @param string $name The name of the |
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504 | * property to add |
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505 | * @param ResourceSet $targetResourceSet The resource set the |
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506 | * resource reference |
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507 | * or reference |
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508 | * set property |
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509 | * points to |
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510 | * @param ResourcePropertyKind $resourcePropertyKind The property kind |
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511 | */ |
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512 | private function _addReferencePropertyInternal( |
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559 | |||
560 | /** |
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561 | * To add a navigation property (resource set or resource reference) |
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562 | * to a resource type. |
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563 | * |
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564 | * @param ResourceType $sourceResourceType The source resource type to add |
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565 | * the resource reference |
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566 | * or resource reference set property to |
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567 | * @param ResourceType $targetResourceType The target resource type to add |
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568 | * the resource reference |
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569 | * or resource reference set property to |
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570 | * @param string $sourceProperty The name of the |
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571 | * property to add to source type |
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572 | * @param string $targetProperty The name of the |
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573 | * property to add to target type |
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574 | * @param ResourcePropertyKind $sourcePropertyKind The property kind on the source type |
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575 | * @param ResourcePropertyKind $targetPropertyKind The property kind on the target type |
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576 | */ |
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577 | private function _addReferencePropertyInternalBidirectional( |
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658 | |||
659 | /** |
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660 | * To add a resource set reference property. |
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661 | * |
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662 | * @param ResourceType $resourceType The resource type to add the |
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663 | * resource reference set property to |
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664 | * @param string $name The name of the property to add |
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665 | * @param ResourceSet $targetResourceSet The resource set the resource |
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666 | * reference set property points to |
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667 | */ |
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668 | public function addResourceSetReferenceProperty($resourceType, $name, $targetResourceSet) |
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677 | |||
678 | /** |
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679 | * To add a M:N resource reference property. |
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680 | * |
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681 | * @param ResourceType $sourceResourceType The resource type to add the resource |
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682 | * reference property from |
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683 | * @param ResourceType $targetResourceType The resource type to add the resource |
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684 | * reference property to |
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685 | * @param string $sourceProperty The name of the property to add, on source type |
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686 | * @param string $targetProperty The name of the property to add, on target type |
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687 | */ |
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688 | public function addResourceSetReferencePropertyBidirectional( |
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703 | |||
704 | /** |
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705 | * To add a 1-1 resource reference. |
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706 | * |
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707 | * @param ResourceType $sourceResourceType The resource type to add the resource |
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708 | * reference property from |
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709 | * @param ResourceType $targetResourceType The resource type to add the resource |
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710 | * reference property to |
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711 | * @param string $sourceProperty The name of the property to add, on source type |
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712 | * @param string $targetProperty The name of the property to add, on target type |
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713 | */ |
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714 | public function addResourceReferenceSinglePropertyBidirectional( |
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729 | |||
730 | /** |
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731 | * To add a complex property to entity or complex type. |
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732 | * |
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733 | * @param ResourceType $resourceType The resource type to which the |
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734 | * complex property needs to add |
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735 | * @param string $name name of the complex property |
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736 | * @param ResourceType $complexResourceType complex resource type |
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737 | * @param bool $isBag complex type is bag or not |
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738 | * |
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739 | * @return ResourceProperty |
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740 | */ |
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741 | public function addComplexProperty($resourceType, $name, $complexResourceType, $isBag = false) |
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768 | } |
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769 |
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: