| /* |
| * Copyright (c) 1998, 2020 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.internal.descriptors; |
| |
| import java.security.AccessController; |
| import java.security.PrivilegedActionException; |
| |
| import org.eclipse.persistence.internal.security.PrivilegedAccessHelper; |
| import org.eclipse.persistence.internal.security.PrivilegedNewInstanceFromClass; |
| import org.eclipse.persistence.mappings.transformers.*; |
| |
| /** |
| * INTERNAL: |
| * An implementation of FieldTransformation which holds onto a transformer class-name |
| * which will be instantiated to do transformations |
| * |
| * @author mmacivor |
| * @since OracleAS TopLink 10<i>g</i> (10.0.3) |
| */ |
| public class TransformerBasedFieldTransformation extends FieldTransformation { |
| protected Class transformerClass; |
| protected String transformerClassName; |
| protected FieldTransformer transformer; |
| |
| public TransformerBasedFieldTransformation() { |
| super(); |
| } |
| |
| public TransformerBasedFieldTransformation(FieldTransformer aTransformer) { |
| transformer = aTransformer; |
| if (transformer != null) { |
| setTransformerClass(transformer.getClass()); |
| setTransformerClassName(transformer.getClass().getName()); |
| } |
| } |
| |
| public Class getTransformerClass() { |
| return transformerClass; |
| } |
| |
| public void setTransformerClass(Class transformerClass) { |
| this.transformerClass = transformerClass; |
| } |
| |
| public String getTransformerClassName() { |
| return transformerClassName; |
| } |
| |
| public void setTransformerClassName(String transformerClassName) { |
| this.transformerClassName = transformerClassName; |
| } |
| |
| @Override |
| public FieldTransformer buildTransformer() throws Exception { |
| if (transformer == null) { |
| Class transformerClass = getTransformerClass(); |
| if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){ |
| try{ |
| transformer = (FieldTransformer)AccessController.doPrivileged(new PrivilegedNewInstanceFromClass(transformerClass)); |
| }catch (PrivilegedActionException ex){ |
| throw (Exception)ex.getCause(); |
| } |
| }else{ |
| transformer = (FieldTransformer)PrivilegedAccessHelper.newInstanceFromClass(transformerClass); |
| } |
| } |
| return transformer; |
| } |
| } |