| /******************************************************************************* |
| * 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.api; |
| |
| import javax.persistence.EntityManager; |
| |
| import org.apache.olingo.odata2.api.processor.ODataSingleProcessor; |
| import org.apache.olingo.odata2.jpa.processor.api.access.JPAProcessor; |
| import org.apache.olingo.odata2.jpa.processor.api.exception.ODataJPAException; |
| import org.apache.olingo.odata2.jpa.processor.api.factory.ODataJPAFactory; |
| |
| /** |
| * Extend this class and implement an OData JPA processor if the default |
| * behavior of OData JPA Processor library has to be overwritten. |
| * |
| * The class encapsulates a default processor for handling OData requests and |
| * a default builder to build an OData response. |
| * |
| */ |
| public abstract class ODataJPAProcessor extends ODataSingleProcessor { |
| |
| /** |
| * An instance of {@link org.apache.olingo.odata2.jpa.processor.api.ODataJPAContext} object |
| */ |
| protected ODataJPAContext oDataJPAContext; |
| |
| /** |
| * An instance of {@link org.apache.olingo.odata2.jpa.processor.api.access.JPAProcessor}. The |
| * instance is created using {@link org.apache.olingo.odata2.jpa.processor.api.factory.JPAAccessFactory}. |
| */ |
| protected JPAProcessor jpaProcessor; |
| |
| /** |
| * An instance of {@link org.apache.olingo.odata2.jpa.processor.api.ODataJPAResponseBuilder}. The instance |
| * is created using {@link org.apache.olingo.odata2.jpa.processor.api.factory.ODataJPAAccessFactory}. |
| */ |
| protected ODataJPAResponseBuilder responseBuilder; |
| |
| public ODataJPAContext getOdataJPAContext() { |
| return oDataJPAContext; |
| } |
| |
| public void setOdataJPAContext(final ODataJPAContext odataJPAContext) { |
| oDataJPAContext = odataJPAContext; |
| } |
| |
| /** |
| * Constructor |
| * |
| * @param oDataJPAContext |
| * non null OData JPA Context object |
| */ |
| public ODataJPAProcessor(final ODataJPAContext oDataJPAContext) { |
| if (oDataJPAContext == null) { |
| throw new IllegalArgumentException(ODataJPAException.ODATA_JPACTX_NULL); |
| } |
| this.oDataJPAContext = oDataJPAContext; |
| jpaProcessor = ODataJPAFactory.createFactory().getJPAAccessFactory().getJPAProcessor(this.oDataJPAContext); |
| responseBuilder = |
| ODataJPAFactory.createFactory().getODataJPAAccessFactory().getODataJPAResponseBuilder(this.oDataJPAContext); |
| } |
| |
| /** |
| * The method closes ThreadContext. |
| * It is mandatory to call this method to avoid memory leaks. |
| * <p/> |
| * <b>ATTENTION:</b> If <code>isContainerManaged</code> is set to <code>true</code> at |
| * the ODataJPAContext only the cleanup is run but the EntityManager is not closed. |
| */ |
| public void close(boolean forceClose) { |
| ODataJPATombstoneContext.cleanup(); |
| if(!oDataJPAContext.isContainerManaged()) { |
| EntityManager em = oDataJPAContext.getEntityManager(); |
| if (!oDataJPAContext.getODataContext().isInBatchMode() || forceClose) { |
| if (em.isOpen()) { |
| em.close(); |
| } |
| } |
| } |
| } |
| |
| public void close() { |
| close(false); |
| } |
| |
| } |