/**
* Gets the ResourceAssociationSet instance for the given source association end,
* Note: Wrapper for IDataServiceMetadataProvider::getResourceAssociationSet
* method implementation
*
* @param ResourceSetWrapper $resourceSetWrapper Resource set of the source
* association end
* @param ResourceType $resourceType Resource type of the source
* association end
* @param ResourceProperty $resourceProperty 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(ResourceSetWrapper $resourceSetWrapper, ResourceType $resourceType, ResourceProperty $resourceProperty)
{
$resourceType = $this->_getResourceTypeWherePropertyIsDeclared($resourceType, $resourceProperty);
$cacheKey = $resourceSetWrapper->getName() . '_' . $resourceType->getName() . '_' . $resourceProperty->getName();
if (array_key_exists($cacheKey, $this->_resourceAssociationSetCache)) {
return $this->_resourceAssociationSetCache[$cacheKey];
}
$associationSet = $this->_metadataProvider->getResourceAssociationSet($resourceSetWrapper->getResourceSet(), $resourceType, $resourceProperty);
if (!is_null($associationSet)) {
$thisAssociationSetEnd = $associationSet->getResourceAssociationSetEnd($resourceSetWrapper->getResourceSet(), $resourceType, $resourceProperty);
$relatedAssociationSetEnd = $associationSet->getRelatedResourceAssociationSetEnd($resourceSetWrapper->getResourceSet(), $resourceType, $resourceProperty);
//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($relatedAssociationSetEnd)) {
throw new ODataException(Messages::metadataQueryProviderWrapperIDSMPGetResourceSetReturnsInvalidResourceSet($resourceSetWrapper->getName(), $resourceType->getFullName(), $resourceProperty->getName()), 500);
}
$relatedResourceSetWrapper = $this->_validateResourceSetAndGetWrapper($relatedAssociationSetEnd->getResourceSet());
if ($relatedResourceSetWrapper === null) {
$associationSet = null;
} else {
$this->_validateResourceType($thisAssociationSetEnd->getResourceType());
$this->_validateResourceType($relatedAssociationSetEnd->getResourceType());
}
}
$this->_resourceAssociationSetCache[$cacheKey] = $associationSet;
return $associationSet;
}
/**
* Gets the ResourceAssociationType instance for the given
* ResourceAssociationSet and one of it's end.
*
* This function first searches the ResourceAssociationType cache,
* if found return it otherwise create the Association type for the given
* association set, cache and return it.
*
* Creation of ResourceAssociationType includes two sub-tasks:
* 1. Deciding name of 'ResourceAssociationType'
* (see the function _getAssociationTypeName)
* 2. Deciding names for two 'ResourceAssociationTypeEnd' of the
* 'ResourceAssociationType'
* Refer ./AssociationSetAndTypeNamingRules.txt for naming rules.
*
* @param ResourceAssociationSet $resourceAssociationSet Association set to
* get the
* association type
* @param ResourceSetWrapper $resourceSet Resource set for
* one of the ends of
* given association set
* @param ResourceType $resourceType Resource type for
* one of the ends of
* given association set
* @param ResourceProperty $navigationProperty Resource property for
* one of the ends of
* given association set
*
* @return ResourceAssociationType The association type
* for the given association set
*/
private function _getResourceAssociationType(ResourceAssociationSet $resourceAssociationSet, ResourceSetWrapper $resourceSet, ResourceType $resourceType, ResourceProperty $navigationProperty)
{
$resourceTypeNamespace = $this->getResourceTypeNamespace($resourceType);
$resourceAssociationTypesInNamespace =& $this->getResourceAssociationTypesForNamespace($resourceTypeNamespace);
$associationTypeLookupKey = $resourceType->getName() . '_' . $navigationProperty->getName();
if (array_key_exists($associationTypeLookupKey, $resourceAssociationTypesInNamespace)) {
return $resourceAssociationTypesInNamespace[$associationTypeLookupKey];
}
//Generate resource association type end names
//Refer ./AssociationSetAndTypeNamingRules.txt
$associationTypeEnd1Name = $associationTypeEnd2Name = null;
$isBiDirectional = $resourceAssociationSet->isBidirectional();
if ($isBiDirectional) {
$associationTypeEnd1Name = $resourceAssociationSet->getEnd1()->getResourceType()->getName() . '_' . $resourceAssociationSet->getEnd1()->getResourceProperty()->getName();
$associationTypeEnd2Name = $resourceAssociationSet->getEnd2()->getResourceType()->getName() . '_' . $resourceAssociationSet->getEnd2()->getResourceProperty()->getName();
} else {
if (!is_null($resourceAssociationSet->getEnd1()->getResourceProperty())) {
$associationTypeEnd1Name = $resourceAssociationSet->getEnd1()->getResourceType()->getName();
$associationTypeEnd2Name = $resourceAssociationSet->getEnd1()->getResourceProperty()->getName();
} else {
$associationTypeEnd1Name = $resourceAssociationSet->getEnd2()->getResourceProperty()->getName();
$associationTypeEnd2Name = $resourceAssociationSet->getEnd2()->getResourceType()->getName();
}
}
//Generate resource assoication type name
//Refer ./AssociationSetAndTypeNamingRules.txt
$resourceAssociationTypeName = $this->_getAssociationTypeName($resourceAssociationSet);
//Create and cache the association type
$resourceAssociationType = new ResourceAssociationType($resourceAssociationTypeName, $resourceTypeNamespace, new ResourceAssociationTypeEnd($associationTypeEnd1Name, $resourceAssociationSet->getEnd1()->getResourceType(), $resourceAssociationSet->getEnd1()->getResourceProperty(), $resourceAssociationSet->getEnd2()->getResourceProperty()), new ResourceAssociationTypeEnd($associationTypeEnd2Name, $resourceAssociationSet->getEnd2()->getResourceType(), $resourceAssociationSet->getEnd2()->getResourceProperty(), $resourceAssociationSet->getEnd1()->getResourceProperty()));
$resourceAssociationTypesInNamespace[$associationTypeLookupKey] = $resourceAssociationType;
if ($isBiDirectional) {
$relatedAssociationSetEnd = $resourceAssociationSet->getRelatedResourceAssociationSetEnd($resourceSet->getResourceSet(), $resourceType, $navigationProperty);
$relatedEndLookupKey = $relatedAssociationSetEnd->getResourceType()->getName() . '_' . $relatedAssociationSetEnd->getResourceProperty()->getName();
$resourceAssociationTypesInNamespace[$relatedEndLookupKey] = $resourceAssociationType;
}
return $resourceAssociationType;
}
