/**
* Build 'Projection Tree' from the given expand path segments
*
* @param array(array(string)) $expandPathSegments Collection of expand paths.
*
*
* @return void
*
* @throws ODataException If any error occurs while processing the expand path segments
* .
*/
private function _buildProjectionTree($expandPathSegments)
{
foreach ($expandPathSegments as $expandSubPathSegments) {
$currentNode = $this->_rootProjectionNode;
foreach ($expandSubPathSegments as $expandSubPathSegment) {
$resourceSetWrapper = $currentNode->getResourceSetWrapper();
$resourceType = $currentNode->getResourceType();
$resourceProperty = $resourceType->resolveProperty($expandSubPathSegment);
if (is_null($resourceProperty)) {
throw ODataException::createSyntaxError(Messages::expandProjectionParserPropertyNotFound($resourceType->getFullName(), $expandSubPathSegment, false));
} else {
if ($resourceProperty->getTypeKind() != ResourceTypeKind::ENTITY) {
throw ODataException::createBadRequestError(Messages::expandProjectionParserExpandCanOnlyAppliedToEntity($resourceType->getFullName(), $expandSubPathSegment));
}
}
$resourceSetWrapper = $this->_providerWrapper->getResourceSetWrapperForNavigationProperty($resourceSetWrapper, $resourceType, $resourceProperty);
if (is_null($resourceSetWrapper)) {
throw ODataException::createBadRequestError(Messages::badRequestInvalidPropertyNameSpecified($resourceType->getFullName(), $expandSubPathSegment));
}
$singleResult = $resourceProperty->isKindOf(ResourcePropertyKind::RESOURCE_REFERENCE);
$resourceSetWrapper->checkResourceSetRightsForRead($singleResult);
$pageSize = $resourceSetWrapper->getResourceSetPageSize();
$internalOrderByInfo = null;
if ($pageSize != 0 && !$singleResult) {
$this->_rootProjectionNode->setPagedExpandedResult(true);
$rt = $resourceSetWrapper->getResourceType();
//assert($rt != null)
$keys = array_keys($rt->getKeyProperties());
//assert(!empty($keys))
$orderBy = null;
foreach ($keys as $key) {
$orderBy = $orderBy . $key . ', ';
}
$orderBy = rtrim($orderBy, ', ');
$internalOrderByInfo = OrderByParser::parseOrderByClause($resourceSetWrapper, $rt, $orderBy, $this->_providerWrapper);
}
$node = $currentNode->findNode($expandSubPathSegment);
if (is_null($node)) {
$maxResultCount = $this->_providerWrapper->getConfiguration()->getMaxResultsPerCollection();
$node = new ExpandedProjectionNode($expandSubPathSegment, $resourceProperty, $resourceSetWrapper, $internalOrderByInfo, null, $pageSize == 0 ? null : $pageSize, $maxResultCount == PHP_INT_MAX ? null : $maxResultCount);
$currentNode->addNode($node);
}
$currentNode = $node;
}
}
}
/**
* Checks whether etag headers are allowed for this request.
*
* @return boolean True if ETag header (If-Match or If-NoneMatch)
* is allowed for the request, False otherwise.
*/
public function isETagHeaderAllowed()
{
return $this->lastSegment->isSingleResult() && $this->queryType != QueryType::COUNT() && !$this->isLinkUri() && (is_null($this->_rootProjectionNode) || !$this->_rootProjectionNode->isExpansionSpecified());
}
