/**
* Gets the ResourceAssociationSet instance for the given source association end,
* Note: Wrapper for IMetadataProvider::getResourceAssociationSet
* method implementation
*
* @param ResourceSet $set Resource set of the source association end
* @param ResourceType $type Resource type of the source association end
* @param ResourceProperty $property Resource property of the source association end
*
*
* @return ResourceAssociationSet|null Returns ResourceAssociationSet for the source
* association end, NULL if no such
* association end or resource set in the
* other end of the association is invisible
*/
public function getResourceAssociationSet(ResourceSet $set, ResourceType $type, ResourceProperty $property)
{
$type = $this->_getResourceTypeWherePropertyIsDeclared($type, $property);
$cacheKey = $set->getName() . '_' . $type->getName() . '_' . $property->getName();
if (array_key_exists($cacheKey, $this->associationSetCache)) {
return $this->associationSetCache[$cacheKey];
}
$associationSet = $this->metaProvider->getResourceAssociationSet($set, $type, $property);
if (!is_null($associationSet)) {
$thisAssociationSetEnd = $associationSet->getResourceAssociationSetEnd($set, $type, $property);
$relatedAssociationSetEnd = $associationSet->getRelatedResourceAssociationSetEnd($set, $type, $property);
//If $thisAssociationSetEnd or $relatedAssociationSetEnd
//is null means the associationset
//we got from the IDSMP::getResourceAssociationSet is invalid.
//AssociationSet::getResourceAssociationSetEnd
//return null, if AssociationSet's End1 or End2's resourceset name
//is not matching with the name of
//resource set wrapper (param1) and resource type is not assignable
//from given resource type (param2)
if (is_null($thisAssociationSetEnd) || is_null($relatedAssociationSetEnd)) {
throw new ODataException(Messages::providersWrapperIDSMPGetResourceSetReturnsInvalidResourceSet($set->getName(), $type->getFullName(), $property->getName()), 500);
}
$relatedResourceSetWrapper = $this->_validateResourceSetAndGetWrapper($relatedAssociationSetEnd->getResourceSet());
if ($relatedResourceSetWrapper === null) {
$associationSet = null;
} else {
$this->_validateResourceType($thisAssociationSetEnd->getResourceType());
$this->_validateResourceType($relatedAssociationSetEnd->getResourceType());
}
}
$this->associationSetCache[$cacheKey] = $associationSet;
return $associationSet;
}
