@Override
public Supplier<Pair<Integer, JsonNode>> handleGet(StateContext state) {
JsonApiDocument doc = new JsonApiDocument();
RequestScope requestScope = state.getRequestScope();
ObjectMapper mapper = requestScope.getMapper().getObjectMapper();
Optional<MultivaluedMap<String, String>> queryParams = requestScope.getQueryParams();
Map<String, Relationship> relationships = record.toResource().getRelationships();
Relationship relationship = null;
if (relationships != null) {
relationship = relationships.get(relationshipName);
}
// Handle valid relationship
if (relationship != null) {
// Set data
Data<Resource> data = relationship.getData();
doc.setData(data);
// Run include processor
DocumentProcessor includedProcessor = new IncludedProcessor();
includedProcessor.execute(doc, record, queryParams);
return () -> Pair.of(HttpStatus.SC_OK, mapper.convertValue(doc, JsonNode.class));
}
// Handle no data for relationship
if (relationshipType.isToMany()) {
doc.setData(new Data<>(new ArrayList<>()));
} else if (relationshipType.isToOne()) {
doc.setData(new Data<>((Resource) null));
} else {
throw new IllegalStateException("Failed to PATCH a relationship");
}
return () -> Pair.of(HttpStatus.SC_OK, mapper.convertValue(doc, JsonNode.class));
}
/**
* Special copy constructor for use by PatchRequestScope.
*
* @param jsonApiDocument the json api document
* @param outerRequestScope the outer request scope
*/
protected RequestScope(
String path, JsonApiDocument jsonApiDocument, RequestScope outerRequestScope) {
this.jsonApiDocument = jsonApiDocument;
this.path = path;
this.transaction = outerRequestScope.transaction;
this.user = outerRequestScope.user;
this.dictionary = outerRequestScope.dictionary;
this.mapper = outerRequestScope.mapper;
this.auditLogger = outerRequestScope.auditLogger;
this.queryParams = Optional.empty();
this.sparseFields = Collections.emptyMap();
this.sorting = Sorting.getDefaultEmptyInstance();
this.pagination = Pagination.getDefaultPagination();
this.objectEntityCache = outerRequestScope.objectEntityCache;
this.securityMode = outerRequestScope.securityMode;
this.newPersistentResources = outerRequestScope.newPersistentResources;
this.commitTriggers = outerRequestScope.commitTriggers;
this.permissionExecutor = outerRequestScope.getPermissionExecutor();
this.dirtyResources = outerRequestScope.dirtyResources;
this.filterDialect = outerRequestScope.filterDialect;
this.expressionsByType = outerRequestScope.expressionsByType;
this.useFilterExpressions = outerRequestScope.useFilterExpressions;
}