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 |
||
16 | class SimpleMetadataProvider implements IMetadataProvider |
||
17 | { |
||
18 | public $OdataEntityMap = []; |
||
19 | protected $resourceSets = []; |
||
20 | protected $resourceTypes = []; |
||
21 | protected $associationSets = []; |
||
22 | protected $containerName; |
||
23 | protected $namespaceName; |
||
24 | private $metadataManager; |
||
25 | |||
26 | /** |
||
27 | * @param string $containerName container name for the datasource |
||
28 | * @param string $namespaceName namespace for the datasource |
||
29 | */ |
||
30 | public function __construct($containerName, $namespaceName) |
||
36 | |||
37 | //Begin Implementation of IMetadataProvider |
||
38 | |||
39 | public function getXML() |
||
43 | |||
44 | /** |
||
45 | * get the Container name for the data source. |
||
46 | * |
||
47 | * @return string container name |
||
48 | */ |
||
49 | public function getContainerName() |
||
53 | |||
54 | /** |
||
55 | * get Namespace name for the data source. |
||
56 | * |
||
57 | * @return string namespace |
||
58 | */ |
||
59 | public function getContainerNamespace() |
||
63 | |||
64 | /** |
||
65 | * get all entity set information. |
||
66 | * |
||
67 | * @return ResourceSet[] |
||
68 | */ |
||
69 | public function getResourceSets($params = null) |
||
96 | |||
97 | /** |
||
98 | * get all resource types in the data source. |
||
99 | * |
||
100 | * @return ResourceType[] |
||
101 | */ |
||
102 | public function getTypes() |
||
106 | |||
107 | /** |
||
108 | * get a resource set based on the specified resource set name. |
||
109 | * |
||
110 | * @param string $name Name of the resource set |
||
111 | * |
||
112 | * @return ResourceSet|null resource set with the given name if found else NULL |
||
113 | */ |
||
114 | public function resolveResourceSet($name) |
||
121 | |||
122 | /** |
||
123 | * get a resource type based on the resource type name. |
||
124 | * |
||
125 | * @param string $name Name of the resource type |
||
126 | * |
||
127 | * @return ResourceType|null resource type with the given resource type name if found else NULL |
||
128 | */ |
||
129 | public function resolveResourceType($name) |
||
136 | |||
137 | /** |
||
138 | * get a resource set based on the specified resource association set name. |
||
139 | * |
||
140 | * @param string $name Name of the resource assocation set |
||
141 | * |
||
142 | * @return ResourceAssociationSet|null resource association set with the given name if found else NULL |
||
143 | */ |
||
144 | public function resolveAssociationSet($name) |
||
151 | |||
152 | /* |
||
153 | * Get number of association sets hooked up |
||
154 | */ |
||
155 | public function getAssociationCount() |
||
159 | |||
160 | /** |
||
161 | * The method must return a collection of all the types derived from |
||
162 | * $resourceType The collection returned should NOT include the type |
||
163 | * passed in as a parameter. |
||
164 | * |
||
165 | * @param ResourceEntityType $resourceType Resource to get derived resource types from |
||
166 | * |
||
167 | * @return ResourceType[] |
||
168 | */ |
||
169 | public function getDerivedTypes(ResourceEntityType $resourceType) |
||
173 | |||
174 | /** |
||
175 | * @param ResourceType $resourceType Resource to check for derived resource types |
||
176 | * |
||
177 | * @return bool true if $resourceType represents an Entity Type which has derived Entity Types, else false |
||
178 | */ |
||
179 | public function hasDerivedTypes(ResourceEntityType $resourceType) |
||
183 | |||
184 | //End Implementation of IMetadataProvider |
||
185 | |||
186 | /** |
||
187 | * Gets the ResourceAssociationSet instance for the given source |
||
188 | * association end. |
||
189 | * |
||
190 | * @param ResourceSet $sourceResourceSet Resource set |
||
191 | * of the source |
||
192 | * association end |
||
193 | * @param ResourceType $sourceResourceType Resource type of the source |
||
194 | * association end |
||
195 | * @param ResourceProperty $targetResourceProperty Resource property of |
||
196 | * the source |
||
197 | * association end |
||
198 | * |
||
199 | * @return ResourceAssociationSet|null |
||
200 | */ |
||
201 | public function getResourceAssociationSet( |
||
240 | |||
241 | /** |
||
242 | * Add an entity type. |
||
243 | * |
||
244 | * @param \ReflectionClass $refClass reflection class of the entity |
||
245 | * @param string $name name of the entity |
||
246 | * @return ResourceType when the name is already in use |
||
247 | * |
||
248 | * @throws InvalidOperationException when the name is already in use |
||
249 | * @internal param string $namespace namespace of the data source |
||
250 | * |
||
251 | */ |
||
252 | public function addEntityType(\ReflectionClass $refClass, $name) |
||
253 | { |
||
254 | return $this->createResourceType($refClass, $name, ResourceTypeKind::ENTITY); |
||
255 | } |
||
256 | |||
257 | /** |
||
258 | * @param \ReflectionClass $refClass |
||
259 | * @param string $name |
||
260 | * @param $typeKind |
||
261 | * @return ResourceType |
||
262 | * @throws InvalidOperationException |
||
263 | * @internal param null|string $namespace |
||
264 | * @internal param null|ResourceType $baseResourceType |
||
265 | * |
||
266 | */ |
||
267 | private function createResourceType( |
||
294 | |||
295 | /** |
||
296 | * Add a complex type. |
||
297 | * |
||
298 | * @param \ReflectionClass $refClass reflection class of the complex entity type |
||
299 | * @param string $name name of the entity |
||
300 | * @return ResourceType when the name is already in use |
||
301 | * |
||
302 | * @throws InvalidOperationException when the name is already in use |
||
303 | * @internal param string $namespace namespace of the data source |
||
304 | * @internal param ResourceType $baseResourceType base resource type |
||
305 | * |
||
306 | */ |
||
307 | public function addComplexType(\ReflectionClass $refClass, $name) |
||
308 | { |
||
309 | return $this->createResourceType($refClass, $name, ResourceTypeKind::COMPLEX); |
||
310 | } |
||
311 | |||
312 | /** |
||
313 | * @param string $name name of the resource set |
||
314 | * @param ResourceEntityType $resourceType resource type |
||
315 | * |
||
316 | * @throws InvalidOperationException |
||
317 | * |
||
318 | * @return ResourceSet |
||
319 | */ |
||
320 | public function addResourceSet($name, ResourceEntityType $resourceType) |
||
334 | |||
335 | /** |
||
336 | * To add a Key-primitive property to a resource (Complex/Entity). |
||
337 | * |
||
338 | * @param ResourceType $resourceType resource type to which key property |
||
339 | * is to be added |
||
340 | * @param string $name name of the key property |
||
341 | * @param TypeCode $typeCode type of the key property |
||
342 | */ |
||
343 | public function addKeyProperty($resourceType, $name, $typeCode) |
||
347 | |||
348 | /** |
||
349 | * To add a Key/NonKey-primitive property to a resource (complex/entity). |
||
350 | * |
||
351 | * @param ResourceType $resourceType Resource type |
||
352 | * @param string $name name of the property |
||
353 | * @param TypeCode $typeCode type of property |
||
354 | * @param bool $isKey property is key or not |
||
355 | * @param bool $isBag property is bag or not |
||
356 | * @param bool $isETagProperty property is etag or not |
||
357 | */ |
||
358 | private function _addPrimitivePropertyInternal( |
||
405 | |||
406 | /** |
||
407 | * @param string $name |
||
408 | * @param ResourceType $resourceType |
||
409 | * |
||
410 | * @throws InvalidOperationException |
||
411 | */ |
||
412 | private function checkInstanceProperty($name, ResourceType $resourceType) |
||
429 | |||
430 | /** |
||
431 | * To add a NonKey-primitive property (Complex/Entity). |
||
432 | * |
||
433 | * @param ResourceType $resourceType resource type to which key property |
||
434 | * is to be added |
||
435 | * @param string $name name of the key property |
||
436 | * @param TypeCode $typeCode type of the key property |
||
437 | * @param bool $isBag property is bag or not |
||
438 | */ |
||
439 | public function addPrimitiveProperty($resourceType, $name, $typeCode, $isBag = false) |
||
443 | |||
444 | /** |
||
445 | * To add a non-key etag property. |
||
446 | * |
||
447 | * @param ResourceType $resourceType resource type to which key property |
||
448 | * is to be added |
||
449 | * @param string $name name of the property |
||
450 | * @param TypeCode $typeCode type of the etag property |
||
451 | */ |
||
452 | public function addETagProperty($resourceType, $name, $typeCode) |
||
456 | |||
457 | /** |
||
458 | * To add a resource reference property. |
||
459 | * |
||
460 | * @param ResourceEntityType $resourceType The resource type to add the resource |
||
461 | * reference property to |
||
462 | * @param string $name The name of the property to add |
||
463 | * @param ResourceSet $targetResourceSet The resource set the resource reference |
||
464 | * property points to |
||
465 | */ |
||
466 | public function addResourceReferenceProperty($resourceType, $name, $targetResourceSet) |
||
475 | |||
476 | /** |
||
477 | * To add a 1:N resource reference property. |
||
478 | * |
||
479 | * @param ResourceType $sourceResourceType The resource type to add the resource |
||
480 | * reference property from |
||
481 | * @param ResourceType $targetResourceType The resource type to add the resource |
||
482 | * reference property to |
||
483 | * @param string $sourceProperty The name of the property to add, on source type |
||
484 | * @param string $targetProperty The name of the property to add, on target type |
||
485 | */ |
||
486 | public function addResourceReferencePropertyBidirectional( |
||
501 | |||
502 | /** |
||
503 | * To add a navigation property (resource set or resource reference) |
||
504 | * to a resource type. |
||
505 | * |
||
506 | * @param ResourceEntityType $sourceResourceType The resource type to add |
||
507 | * the resource reference |
||
508 | * or resource |
||
509 | * reference set property to |
||
510 | * @param string $name The name of the |
||
511 | * property to add |
||
512 | * @param ResourceSet $targetResourceSet The resource set the |
||
513 | * resource reference |
||
514 | * or reference |
||
515 | * set property |
||
516 | * points to |
||
517 | * @param ResourcePropertyKind $resourcePropertyKind The property kind |
||
518 | */ |
||
519 | private function _addReferencePropertyInternal( |
||
566 | |||
567 | /** |
||
568 | * To add a navigation property (resource set or resource reference) |
||
569 | * to a resource type. |
||
570 | * |
||
571 | * @param ResourceEntityType $sourceResourceType The source resource type to add |
||
572 | * the resource reference |
||
573 | * or resource reference set property to |
||
574 | * @param ResourceEntityType $targetResourceType The target resource type to add |
||
575 | * the resource reference |
||
576 | * or resource reference set property to |
||
577 | * @param string $sourceProperty The name of the |
||
578 | * property to add to source type |
||
579 | * @param string $targetProperty The name of the |
||
580 | * property to add to target type |
||
581 | * @param ResourcePropertyKind $sourcePropertyKind The property kind on the source type |
||
582 | * @param ResourcePropertyKind $targetPropertyKind The property kind on the target type |
||
583 | */ |
||
584 | private function _addReferencePropertyInternalBidirectional( |
||
665 | |||
666 | /** |
||
667 | * To add a resource set reference property. |
||
668 | * |
||
669 | * @param ResourceEntityType $resourceType The resource type to add the |
||
670 | * resource reference set property to |
||
671 | * @param string $name The name of the property to add |
||
672 | * @param ResourceSet $targetResourceSet The resource set the resource |
||
673 | * reference set property points to |
||
674 | */ |
||
675 | public function addResourceSetReferenceProperty(ResourceEntityType $resourceType, $name, $targetResourceSet) |
||
684 | |||
685 | /** |
||
686 | * To add a M:N resource reference property. |
||
687 | * |
||
688 | * @param ResourceEntityType $sourceResourceType The resource type to add the resource |
||
689 | * reference property from |
||
690 | * @param ResourceEntityType $targetResourceType The resource type to add the resource |
||
691 | * reference property to |
||
692 | * @param string $sourceProperty The name of the property to add, on source type |
||
693 | * @param string $targetProperty The name of the property to add, on target type |
||
694 | */ |
||
695 | public function addResourceSetReferencePropertyBidirectional( |
||
710 | |||
711 | /** |
||
712 | * To add a 1-1 resource reference. |
||
713 | * |
||
714 | * @param ResourceEntityType $sourceResourceType The resource type to add the resource |
||
715 | * reference property from |
||
716 | * @param ResourceEntityType $targetResourceType The resource type to add the resource |
||
717 | * reference property to |
||
718 | * @param string $sourceProperty The name of the property to add, on source type |
||
719 | * @param string $targetProperty The name of the property to add, on target type |
||
720 | */ |
||
721 | public function addResourceReferenceSinglePropertyBidirectional( |
||
736 | |||
737 | /** |
||
738 | * To add a complex property to entity or complex type. |
||
739 | * |
||
740 | * @param ResourceType $targetResourceType The resource type to which the complex property needs to add |
||
741 | * @param string $name name of the complex property |
||
742 | * @param ResourceComplexType $complexResourceType complex resource type |
||
743 | * @param bool $isBag complex type is bag or not |
||
744 | * |
||
745 | * @return ResourceProperty |
||
746 | */ |
||
747 | public function addComplexProperty( |
||
778 | } |
||
779 |
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: