| /* |
| * 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.jaxb; |
| |
| import java.security.AccessController; |
| import java.security.PrivilegedActionException; |
| import java.util.*; |
| import org.eclipse.persistence.sessions.Session; |
| import org.eclipse.persistence.mappings.DatabaseMapping; |
| import org.eclipse.persistence.mappings.converters.ObjectTypeConverter; |
| import org.eclipse.persistence.exceptions.DescriptorException; |
| import org.eclipse.persistence.exceptions.ValidationException; |
| import org.eclipse.persistence.internal.oxm.mappings.Mapping; |
| import org.eclipse.persistence.internal.security.PrivilegedAccessHelper; |
| import org.eclipse.persistence.internal.security.PrivilegedClassForName; |
| |
| /** |
| * INTERNAL: |
| * <p><b>Purpose</b>:Provide a means to Convert an Enumeration type to/from either a string representation |
| * of the enum facet or a user defined value. |
| * |
| * <p><b>Responsibilities:</b></p> |
| * <ul> |
| * <li>Initialize the conversion values to be the Enum facets</li> |
| * <li>Don't overwrite any existing, user defined conversion value</li> |
| * </ul> |
| */ |
| public class JAXBEnumTypeConverter extends ObjectTypeConverter { |
| private Class m_enumClass; |
| private String m_enumClassName; |
| private boolean m_usesOrdinalValues; |
| |
| /** |
| * PUBLIC: |
| */ |
| public JAXBEnumTypeConverter(Mapping mapping, String enumClassName, boolean usesOrdinalValues) { |
| super((DatabaseMapping)mapping); |
| |
| m_enumClassName = enumClassName; |
| m_usesOrdinalValues = usesOrdinalValues; |
| } |
| |
| /** |
| * INTERNAL: |
| * Convert all the class-name-based settings in this converter to actual |
| * class-based settings. This method is used when converting a project |
| * that has been built with class names to a project with classes. |
| */ |
| @Override |
| public void convertClassNamesToClasses(ClassLoader classLoader){ |
| try { |
| if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()){ |
| try { |
| m_enumClass = AccessController.doPrivileged(new PrivilegedClassForName(m_enumClassName, true, classLoader)); |
| } catch (PrivilegedActionException exception) { |
| throw ValidationException.classNotFoundWhileConvertingClassNames(m_enumClassName, exception.getException()); |
| } |
| } else { |
| m_enumClass = org.eclipse.persistence.internal.security.PrivilegedAccessHelper.getClassForName(m_enumClassName, true, classLoader); |
| } |
| } catch (ClassNotFoundException exception){ |
| throw ValidationException.classNotFoundWhileConvertingClassNames(m_enumClassName, exception); |
| } |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| @Override |
| public void initialize(DatabaseMapping mapping, Session session) { |
| Iterator<Enum> i = EnumSet.allOf(m_enumClass).iterator(); |
| while (i.hasNext()) { |
| Enum theEnum = i.next(); |
| if (this.getAttributeToFieldValues().get(theEnum) == null) { |
| Object existingVal = this.getAttributeToFieldValues().get(theEnum.name()); |
| if (existingVal != null) { |
| this.getAttributeToFieldValues().remove(theEnum.name()); |
| addConversionValue(existingVal, theEnum); |
| } else { |
| // if there's no user defined value, create a default |
| if (m_usesOrdinalValues) { |
| addConversionValue(theEnum.ordinal(), theEnum); |
| } else { |
| addConversionValue(theEnum.name(), theEnum); |
| } |
| } |
| } |
| } |
| |
| super.initialize(mapping, session); |
| } |
| |
| /** |
| * PUBLIC: |
| * Returns true if this converter uses ordinal values for the enum |
| * conversion. |
| */ |
| public boolean usesOrdinalValues() { |
| return m_usesOrdinalValues; |
| } |
| |
| @Override |
| public Object convertDataValueToObjectValue(Object fieldValue, Session session) { |
| try { |
| return super.convertDataValueToObjectValue(fieldValue, session); |
| } catch (DescriptorException e) { |
| if(DescriptorException.NO_FIELD_VALUE_CONVERSION_TO_ATTRIBUTE_VALUE_PROVIDED == e.getErrorCode()) { |
| if(fieldValue instanceof String) { |
| fieldValue = ((String) fieldValue).trim(); |
| return super.convertDataValueToObjectValue(fieldValue, session); |
| } |
| } |
| throw e; |
| } |
| } |
| |
| } |