| /* |
| * 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: |
| // mmacivor - June 05/2008 - 1.0 - Initial implementation |
| package org.eclipse.persistence.oxm.mappings.converters; |
| |
| import org.eclipse.persistence.mappings.DatabaseMapping; |
| import org.eclipse.persistence.oxm.XMLMarshaller; |
| import org.eclipse.persistence.oxm.XMLUnmarshaller; |
| import org.eclipse.persistence.oxm.XMLRoot; |
| import org.eclipse.persistence.oxm.XMLField; |
| import org.eclipse.persistence.exceptions.ConversionException; |
| import org.eclipse.persistence.internal.oxm.XPathFragment; |
| import org.eclipse.persistence.sessions.Session; |
| |
| /** |
| * <p><b>Purpose: </b> Provides an implementation of XMLConverter to wrap/unwrap objects in an |
| * XMLRoot in order to capture element name information. |
| * <p><b>Responsibilities</b> |
| * <ul> |
| * <li>Wrap an object in an XMLRoot on unmarshal. Do any required conversions based on type for |
| * simple mappings. |
| * <li>Unwrap an XMLRoot from the object and pass it along to be marshalled. |
| * </ul> |
| * @see XMLConverter |
| * @see org.eclipse.persistence.mappings.converters.Converter Converter |
| */ |
| public class XMLRootConverter implements XMLConverter { |
| private XPathFragment rootFragment; |
| private XMLField associatedField; |
| private DatabaseMapping mapping; |
| |
| public XMLRootConverter(XMLField associatedField) { |
| this.associatedField = associatedField; |
| } |
| |
| @Override |
| public Object convertDataValueToObjectValue(Object dataValue, |
| Session session, XMLUnmarshaller unmarshaller) { |
| return convertDataValueToObjectValue(dataValue, session); |
| } |
| |
| @Override |
| public Object convertObjectValueToDataValue(Object objectValue, |
| Session session, XMLMarshaller marshaller) { |
| return convertObjectValueToDataValue(objectValue, session); |
| } |
| |
| @Override |
| public Object convertDataValueToObjectValue(Object dataValue, |
| Session session) { |
| XMLRoot root = new XMLRoot(); |
| root.setLocalName(this.rootFragment.getLocalName()); |
| root.setNamespaceURI(this.rootFragment.getNamespaceURI()); |
| |
| if(mapping.isAbstractDirectMapping()){ |
| if ((dataValue == null) || (dataValue.getClass() != mapping.getAttributeClassification())) { |
| try { |
| dataValue = session.getDatasourcePlatform().convertObject(dataValue, mapping.getAttributeClassification()); |
| } catch (ConversionException e) { |
| throw ConversionException.couldNotBeConverted(this, mapping.getDescriptor(), e); |
| } |
| } |
| } |
| |
| root.setObject(dataValue); |
| |
| return root; |
| } |
| |
| @Override |
| public Object convertObjectValueToDataValue(Object objectValue, |
| Session session) { |
| if(objectValue instanceof XMLRoot) { |
| return ((XMLRoot)objectValue).getObject(); |
| } else { |
| return objectValue; |
| } |
| } |
| |
| @Override |
| public void initialize(DatabaseMapping mapping, Session session) { |
| XPathFragment fragment = associatedField.getXPathFragment(); |
| while(fragment.getNextFragment() != null && !(fragment.getNextFragment().nameIsText())) { |
| fragment = fragment.getNextFragment(); |
| } |
| if(fragment.hasNamespace() && associatedField.getNamespaceResolver() != null){ |
| String uri = associatedField.getNamespaceResolver().resolveNamespacePrefix(fragment.getPrefix()); |
| fragment.setNamespaceURI(uri); |
| } |
| this.rootFragment = fragment; |
| this.mapping = mapping; |
| } |
| |
| @Override |
| public boolean isMutable() { |
| return false; |
| } |
| |
| } |