| /* |
| * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.testing.tests.relationshipmaintenance; |
| |
| import java.util.*; |
| import java.io.*; |
| import org.eclipse.persistence.sessions.UnitOfWork; |
| import org.eclipse.persistence.sessions.Session; |
| import org.eclipse.persistence.testing.framework.*; |
| import org.eclipse.persistence.testing.models.relationshipmaintenance.Dept; |
| import org.eclipse.persistence.testing.models.relationshipmaintenance.Emp; |
| |
| /** |
| * This test checks on a previous problem TopLink had with merging clones and |
| * serialization. If an existing object was serialized and deserialized and another |
| * reference added to that object. Then the object was serialized and deserialized |
| * and deepMergeClone'd into a unit of work and committed. |
| * When the origional object was then serialized and deserialized and modified, then serialized |
| * and deserialized and deepMergeClone'd with another unit of work and committed the changes are |
| * not saved |
| */ |
| public class DeepMergeCloneSerializedTest extends org.eclipse.persistence.testing.framework.AutoVerifyTestCase { |
| public Dept origional; |
| public Dept mergedClone; |
| public Dept deptObject; |
| |
| public DeepMergeCloneSerializedTest() { |
| setDescription("This test verifies that deepMergeClone works after a serialized transaction"); |
| } |
| |
| @Override |
| public void setup() { |
| if (getSession() instanceof org.eclipse.persistence.sessions.remote.RemoteSession) { |
| throw new TestWarningException("This test cannot be run through the remote."); |
| } |
| beginTransaction(); |
| } |
| |
| @Override |
| public void reset() { |
| if (getAbstractSession().isInTransaction()) { |
| rollbackTransaction(); |
| getSession().getIdentityMapAccessor().initializeIdentityMaps(); |
| } |
| } |
| |
| /* |
| * This test creates an object and registers it with a unit of work. It then serializes that |
| * object and deserializes it. Adds an object onto the origional then performs serialization |
| * sequence again. Then deepMergeClone is attempted and the results are compared to verify that |
| * the merge worked. |
| */ |
| @Override |
| public void test() { |
| try { |
| ByteArrayOutputStream byteStream = new ByteArrayOutputStream(); |
| ObjectOutputStream stream = new ObjectOutputStream(byteStream); |
| |
| //create the phoneNumber object |
| Session session = getSession(); |
| UnitOfWork uow = session.acquireUnitOfWork(); |
| this.deptObject = (Dept)session.readObject(Dept.class, new org.eclipse.persistence.expressions.ExpressionBuilder().get("deptno").equal(5.0)); |
| Dept deptClone = (Dept)uow.registerObject(this.deptObject); |
| |
| //force instantiations of value holders before serialization |
| deptClone.getEmpCollection().size(); |
| Emp empClone = null; |
| if ((deptClone.getEmpCollection() != null) && (deptClone.getEmpCollection().size() > 1)) { |
| empClone = (Emp)deptClone.getEmpCollection().iterator().next(); |
| deptClone.getEmpCollection().remove(empClone); |
| empClone.setDeptno(null); |
| } |
| |
| //serialize object by writing to a stream |
| stream.writeObject(deptClone); |
| stream.writeObject(empClone); |
| stream.flush(); |
| byte[] arr = byteStream.toByteArray(); |
| ByteArrayInputStream inByteStream = new ByteArrayInputStream(arr); |
| ObjectInputStream inObjStream = new ObjectInputStream(inByteStream); |
| Dept deserialDept; |
| Emp deserialEmp = null; |
| |
| //deserialize the object |
| try { |
| deserialDept = (Dept)inObjStream.readObject(); |
| deserialEmp = (Emp)inObjStream.readObject(); |
| |
| } catch (ClassNotFoundException e) { |
| throw new TestErrorException("Could not deserialize object " + e.toString()); |
| } |
| |
| //add a new manager, test 1-m's |
| /* if (deserialDept.getEmpCollection() != null && deserialDept.getEmpCollection().size() > 1) { |
| deserialEmp = (Emp)deserialDept.getEmpCollection().iterator().next(); |
| deserialDept.getEmpCollection().remove(deserialEmp); |
| deserialEmp.setDeptno(null); |
| } |
| */ |
| deserialDept.getEmpCollection().add(deserialEmp); |
| deserialEmp.setDeptno(deserialDept); |
| int collectionSize = deserialDept.getEmpCollection().size(); |
| |
| byteStream = new ByteArrayOutputStream(); |
| stream = new ObjectOutputStream(byteStream); |
| //send the ammended object back through the serialization process |
| stream.writeObject(deserialDept); |
| stream.flush(); |
| arr = byteStream.toByteArray(); |
| inByteStream = new ByteArrayInputStream(arr); |
| inObjStream = new ObjectInputStream(inByteStream); |
| try { |
| deserialDept = (Dept)inObjStream.readObject(); |
| } catch (ClassNotFoundException e) { |
| throw new TestErrorException("Could not deserialize object " + e.toString()); |
| } |
| |
| //merge the ammended clone with the unit of work |
| deptClone = (Dept)uow.deepMergeClone(deserialDept); |
| if (deptClone.getEmpCollection().size() != collectionSize) { |
| throw new TestErrorException("Failed to merge the collection correctly not enough Emps"); |
| } |
| for (Iterator iterator = deptClone.getEmpCollection().iterator(); iterator.hasNext();) { |
| Emp emp = (Emp)iterator.next(); |
| if (emp.getDeptno() != deptClone) { |
| throw new TestErrorException("Failed to merge the back pointer"); |
| } |
| } |
| uow.commit(); |
| } catch (IOException e) { |
| throw new TestErrorException("Error running Test " + e.toString()); |
| } |
| } |
| } |