| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| ******************************************************************************/ |
| package org.apache.olingo.odata2.jpa.processor.ref.listeners; |
| |
| import org.apache.olingo.odata2.api.uri.expression.FilterExpression; |
| import org.apache.olingo.odata2.api.uri.info.GetEntitySetUriInfo; |
| import org.apache.olingo.odata2.api.uri.info.GetEntityUriInfo; |
| import org.apache.olingo.odata2.jpa.processor.api.ODataJPAQueryExtensionEntityListener; |
| import org.apache.olingo.odata2.jpa.processor.api.exception.ODataJPAModelException; |
| import org.apache.olingo.odata2.jpa.processor.api.exception.ODataJPARuntimeException; |
| import org.apache.olingo.odata2.jpa.processor.api.jpql.JPQLContext; |
| import org.apache.olingo.odata2.jpa.processor.api.jpql.JPQLContextType; |
| import org.apache.olingo.odata2.jpa.processor.api.jpql.JPQLStatement; |
| |
| import javax.persistence.EntityManager; |
| import javax.persistence.Query; |
| import java.util.Locale; |
| |
| public class CustomerQueryExtension extends ODataJPAQueryExtensionEntityListener { |
| |
| @Override |
| public Query getQuery(GetEntitySetUriInfo uriInfo, EntityManager em) throws ODataJPARuntimeException { |
| FilterExpression filter = uriInfo.getFilter(); |
| if(filter != null && filter.getExpressionString().startsWith("name")) { |
| throw createApplicationError("Filter on name not allowed.", Locale.ENGLISH); |
| } |
| return null; |
| } |
| |
| @Override |
| public Query getQuery(GetEntityUriInfo uriInfo, EntityManager em) { |
| Query query = null; |
| JPQLContextType contextType = null; |
| if (uriInfo.getNavigationSegments().size() > 0) { |
| contextType = JPQLContextType.JOIN_SINGLE; |
| } else { |
| contextType = JPQLContextType.SELECT_SINGLE; |
| } |
| JPQLContext jpqlContext; |
| try { |
| jpqlContext = JPQLContext.createBuilder(contextType, uriInfo).build(); |
| query = em.createQuery(JPQLStatement.createBuilder(jpqlContext).build().toString()); |
| } catch (ODataJPAModelException e) { |
| // Log and return null query object; |
| } catch (ODataJPARuntimeException e) { |
| // Log and return null query object; |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean isTombstoneSupported() { |
| return false; |
| } |
| |
| } |