use of org.eclipse.persistence.jpa.rs.features.fieldsfiltering.FieldsFilteringValidator in project eclipselink by eclipse-ee4j.
the class AbstractEntityResource method findInternal.
protected Response findInternal(String version, String persistenceUnit, String type, String id, HttpHeaders headers, UriInfo uriInfo) {
JPARSLogger.entering(CLASS_NAME, "findInternal", new Object[] { "GET", version, persistenceUnit, type, id, uriInfo.getRequestUri().toASCIIString() });
try {
final PersistenceContext context = getPersistenceContext(persistenceUnit, type, uriInfo.getBaseUri(), version, null);
final Map<String, String> discriminators = getMatrixParameters(uriInfo, persistenceUnit);
final Object entityId = IdHelper.buildId(context, type, id);
final Object entity = context.find(discriminators, type, entityId, getQueryParameters(uriInfo));
if (entity == null) {
JPARSLogger.error(context.getSessionLog(), "jpars_could_not_find_entity_for_key", new Object[] { type, id, persistenceUnit });
throw JPARSException.entityNotFound(type, id, persistenceUnit);
}
// Fields filtering
if (context.getSupportedFeatureSet().isSupported(Feature.FIELDS_FILTERING)) {
final FieldsFilteringValidator fieldsFilteringValidator = new FieldsFilteringValidator(uriInfo);
if (fieldsFilteringValidator.isFeatureApplicable()) {
final StreamingOutputMarshaller marshaller = new StreamingOutputMarshaller(context, singleEntityResponse(context, entity, uriInfo), headers.getAcceptableMediaTypes(), fieldsFilteringValidator.getFilter());
return Response.ok(marshaller).build();
}
}
return Response.ok(new StreamingOutputMarshaller(context, singleEntityResponse(context, entity, uriInfo), headers.getAcceptableMediaTypes())).build();
} catch (Exception ex) {
throw JPARSException.exceptionOccurred(ex);
}
}
use of org.eclipse.persistence.jpa.rs.features.fieldsfiltering.FieldsFilteringValidator in project eclipselink by eclipse-ee4j.
the class AbstractEntityResource method findAttributeInternal.
protected Response findAttributeInternal(String version, String persistenceUnit, String type, String id, String attribute, HttpHeaders headers, UriInfo uriInfo) {
JPARSLogger.entering(CLASS_NAME, "findAttributeInternal", new Object[] { "GET", version, persistenceUnit, type, id, attribute, uriInfo.getRequestUri().toASCIIString() });
EntityManager em = null;
try {
PersistenceContext context = getPersistenceContext(persistenceUnit, type, uriInfo.getBaseUri(), version, null);
Object entityId = IdHelper.buildId(context, type, id);
em = context.getEmf().createEntityManager(getMatrixParameters(uriInfo, persistenceUnit));
Object entity = em.find(context.getClass(type), entityId, getQueryParameters(uriInfo));
DatabaseSession serverSession = context.getServerSession();
ClassDescriptor descriptor = serverSession.getClassDescriptor(context.getClass(type));
if (descriptor == null) {
throw JPARSException.classOrClassDescriptorCouldNotBeFoundForEntity(type, persistenceUnit);
}
DatabaseMapping attributeMapping = descriptor.getMappingForAttributeName(attribute);
if ((attributeMapping == null) || (entity == null)) {
throw JPARSException.databaseMappingCouldNotBeFoundForEntityAttribute(attribute, type, id, persistenceUnit);
}
if (!attributeMapping.isCollectionMapping()) {
Object result = attributeMapping.getRealAttributeValueFromAttribute(attributeMapping.getAttributeValueFromObject(entity), entity, (AbstractSession) serverSession);
if (result == null) {
JPARSLogger.error(context.getSessionLog(), "jpars_could_not_find_entity_for_attribute", new Object[] { attribute, type, id, persistenceUnit });
throw JPARSException.attributeCouldNotBeFoundForEntity(attribute, type, id, persistenceUnit);
}
final FeatureResponseBuilder responseBuilder = context.getSupportedFeatureSet().getResponseBuilder(Feature.NO_PAGING);
return findAttributeResponse(context, attribute, type, id, persistenceUnit, result, getQueryParameters(uriInfo), headers, uriInfo, responseBuilder, null);
}
ReadQuery query = (ReadQuery) ((((ForeignReferenceMapping) attributeMapping).getSelectionQuery()).clone());
if (query == null) {
throw JPARSException.selectionQueryForAttributeCouldNotBeFoundForEntity(attribute, type, id, persistenceUnit);
}
final FeatureSet featureSet = context.getSupportedFeatureSet();
final AbstractSession clientSession = context.getClientSession(em);
// Fields filtering
FieldsFilter fieldsFilter = null;
if (context.getSupportedFeatureSet().isSupported(Feature.FIELDS_FILTERING)) {
final FieldsFilteringValidator fieldsFilteringValidator = new FieldsFilteringValidator(uriInfo);
if (fieldsFilteringValidator.isFeatureApplicable()) {
fieldsFilter = fieldsFilteringValidator.getFilter();
}
}
// Pagination
if (featureSet.isSupported(Feature.PAGING)) {
final PageableFieldValidator validator = new PageableFieldValidator(entity.getClass(), attribute, uriInfo);
if (validator.isFeatureApplicable()) {
// Adding extra one to detect are there more rows or not. It will be removed later
// on in response processor.
query.setMaxRows(validator.getLimit() + validator.getOffset() + 1);
query.setFirstResult(validator.getOffset());
// We need to add limit and offset to query parameters because request builder reads it from there
final Map<String, Object> queryParams = getQueryParameters(uriInfo);
queryParams.put(QueryParameters.JPARS_PAGING_LIMIT, String.valueOf(validator.getLimit()));
queryParams.put(QueryParameters.JPARS_PAGING_OFFSET, String.valueOf(validator.getOffset()));
// check orderBy, and generate a warning if there is none
checkOrderBy(context, query);
final Object result = clientSession.executeQuery(query, descriptor.getObjectBuilder().buildRow(entity, clientSession, WriteType.INSERT));
final FeatureResponseBuilder responseBuilder = context.getSupportedFeatureSet().getResponseBuilder(Feature.PAGING);
return findAttributeResponse(context, attribute, type, id, persistenceUnit, result, queryParams, headers, uriInfo, responseBuilder, fieldsFilter);
}
}
final Object result = clientSession.executeQuery(query, descriptor.getObjectBuilder().buildRow(entity, clientSession, WriteType.INSERT));
final FeatureResponseBuilder responseBuilder = context.getSupportedFeatureSet().getResponseBuilder(Feature.NO_PAGING);
return findAttributeResponse(context, attribute, type, id, persistenceUnit, result, getQueryParameters(uriInfo), headers, uriInfo, responseBuilder, fieldsFilter);
} catch (Exception ex) {
throw JPARSException.exceptionOccurred(ex);
} finally {
if (em != null) {
if (em.isOpen()) {
em.close();
}
}
}
}
use of org.eclipse.persistence.jpa.rs.features.fieldsfiltering.FieldsFilteringValidator in project eclipselink by eclipse-ee4j.
the class AbstractQueryResource method namedQueryResponse.
@SuppressWarnings("unchecked")
private Response namedQueryResponse(PersistenceContext context, String queryName, DatabaseQuery dbQuery, Query query, HttpHeaders headers, UriInfo uriInfo, FeatureResponseBuilder responseBuilder) {
// We need to add limit and offset to query parameters because request builder reads it from there
final Map<String, Object> queryParams = getQueryParameters(uriInfo);
if (query.getMaxResults() != Integer.MAX_VALUE) {
queryParams.put(QueryParameters.JPARS_PAGING_LIMIT, String.valueOf(query.getMaxResults() - 1));
queryParams.put(QueryParameters.JPARS_PAGING_OFFSET, String.valueOf(query.getFirstResult()));
}
// Fields filtering
FieldsFilter fieldsFilter = null;
if (context.getSupportedFeatureSet().isSupported(Feature.FIELDS_FILTERING)) {
final FieldsFilteringValidator fieldsFilteringValidator = new FieldsFilteringValidator(uriInfo);
if (fieldsFilteringValidator.isFeatureApplicable()) {
fieldsFilter = fieldsFilteringValidator.getFilter();
}
}
if (dbQuery instanceof ReportQuery) {
// simple types selected : select u.name, u.age from employee
List<ReportItem> reportItems = ((ReportQuery) dbQuery).getItems();
List<Object[]> queryResults = query.getResultList();
if ((queryResults != null) && (!queryResults.isEmpty())) {
Object list = responseBuilder.buildReportQueryResponse(context, queryParams, queryResults, reportItems, uriInfo);
if (list != null) {
return Response.ok(new StreamingOutputMarshaller(context, list, headers.getAcceptableMediaTypes(), fieldsFilter)).build();
} else {
// something is wrong with the descriptors
throw JPARSException.responseCouldNotBeBuiltForNamedQueryRequest(queryName, context.getName());
}
}
return Response.ok(new StreamingOutputMarshaller(context, queryResults, headers.getAcceptableMediaTypes(), fieldsFilter)).build();
}
List<Object> results = query.getResultList();
if (results != null) {
Object list = responseBuilder.buildReadAllQueryResponse(context, queryParams, results, uriInfo);
return Response.ok(new StreamingOutputMarshaller(context, list, headers.getAcceptableMediaTypes(), fieldsFilter)).build();
}
return Response.ok(new StreamingOutputMarshaller(context, null, headers.getAcceptableMediaTypes(), fieldsFilter)).build();
}
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