/** * Write the metadata in CSDL format. * * @return string */ public function writeMetadata() { $this->_metadataManager = MetadataManager::create($this->providersWrapper); $this->_dataServiceVersion = new Version(1, 0); $edmSchemaVersion = $this->providersWrapper->getEdmSchemaVersion(); $this->_metadataManager->getDataServiceAndEdmSchemaVersions($this->_dataServiceVersion, $edmSchemaVersion); $this->_xmlWriter = new \XMLWriter(); $this->_xmlWriter->openMemory(); $this->_xmlWriter->setIndent(4); $this->_writeTopLevelElements($this->_dataServiceVersion->toString()); $resourceTypesInContainerNamespace = array(); $containerNamespace = $this->providersWrapper->getContainerNamespace(); foreach ($this->_metadataManager->getResourceTypesAlongWithNamespace() as $resourceTypeNamespace => $resourceTypesWithName) { if ($resourceTypeNamespace == $containerNamespace) { foreach ($resourceTypesWithName as $resourceTypeName => $resourceType) { $resourceTypesInContainerNamespace[] = $resourceType; } } else { $associationsInThisNamespace = $this->_metadataManager->getResourceAssociationTypesForNamespace($resourceTypeNamespace); $this->_writeSchemaElement($resourceTypeNamespace, $edmSchemaVersion); $uniqueAssociationsInThisNamespace = $this->_metadataManager->getUniqueResourceAssociationTypesForNamespace($resourceTypeNamespace); $this->_writeResourceTypes(array_values($resourceTypesWithName), $associationsInThisNamespace); $this->_writeAssociationTypes($uniqueAssociationsInThisNamespace); } } //write Container schema node and define required nmaespaces $this->_writeSchemaElement($resourceTypeNamespace, $edmSchemaVersion); if (!empty($resourceTypesInContainerNamespace)) { //Get assocation types in container namespace as array of //key-value pairs (with key as association type //lookup key i.e. ResourceType::Name_NavigationProperty::Name. //Same association will appear twice for di-directional relationship //(duplicate value will be there in this case) $associationsInThisNamespace = $this->_metadataManager->getResourceAssociationTypesForNamespace($containerNamespace); //Get association type in container namespace as array of unique values $uniqueAssociationsInThisNamespace = $this->_metadataManager->getUniqueResourceAssociationTypesForNamespace($containerNamespace); $this->_writeResourceTypes($resourceTypesInContainerNamespace, $associationsInThisNamespace); $this->_writeAssociationTypes($uniqueAssociationsInThisNamespace); } $this->_writeEntityContainer(); //End container Schema node $this->_xmlWriter->endElement(); //End edmx:Edmx and edmx:DataServices nodes $this->_xmlWriter->endElement(); $this->_xmlWriter->endElement(); $metadataInCsdl = $this->_xmlWriter->outputMemory(true); return $metadataInCsdl; }