| /* |
| * 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.compiler; |
| |
| import java.lang.reflect.Method; |
| |
| import jakarta.xml.bind.Unmarshaller; |
| |
| import org.eclipse.persistence.internal.security.PrivilegedAccessHelper; |
| import org.eclipse.persistence.logging.AbstractSessionLog; |
| import org.eclipse.persistence.logging.SessionLog; |
| |
| /** |
| * INTERNAL: |
| * <p><b>Purpose:</b>Hold information about class based JAXB 2.0 Callback methods |
| * <p><b>Responsibilities:</b><ul> |
| * <li>Store information about domainClass and the callback methods</li> |
| * <li>Act as a means to integrate JAXB 2.0 Class based callbacks with TopLink OXM |
| * Listener based callbacks.</li></ul> |
| * |
| * A Map of UnmarshalCallbacks are created during JAXB 2.0 Generation and are set on a |
| * JAXBUnmarshallerListener on each JAXBUnmarshaller. These callbacks are used to invoke |
| * the JAXB 2.0 Class Based callbacks on each object at the appropriate time. |
| * |
| * @author mmacivor |
| * @since Oracle TopLink 11.1.1.0.0 |
| * @see org.eclipse.persistence.jaxb.JAXBUnmarshalListener |
| * @see org.eclipse.persistence.jaxb.JAXBUnmarshaller |
| */ |
| public class UnmarshalCallback { |
| private Class<?> domainClass; |
| private String domainClassName; |
| private Method afterUnmarshalCallback; |
| private Method beforeUnmarshalCallback; |
| private boolean hasAfterUnmarshalCallback = false; |
| private boolean hasBeforeUnmarshalCallback = false; |
| |
| public Method getAfterUnmarshalCallback() { |
| return afterUnmarshalCallback; |
| } |
| |
| public Method getBeforeUnmarshalCallback() { |
| return beforeUnmarshalCallback; |
| } |
| |
| public Class<?> getDomainClass() { |
| return domainClass; |
| } |
| |
| /** |
| * Initialize information about class based JAXB 2.0 Callback methods. |
| * |
| * @param loader source class loader for {@code domainClass} |
| */ |
| public void initialize(ClassLoader loader) { |
| try { |
| domainClass = PrivilegedAccessHelper.callDoPrivilegedWithException( |
| () -> PrivilegedAccessHelper.getClassForName(domainClassName, true, loader) |
| ); |
| } catch (ClassNotFoundException ex) { |
| return; |
| } catch (Exception ex) { |
| throw new RuntimeException(String.format("Failed initialization of %s class", domainClassName), ex); |
| } |
| Class<?>[] params = new Class<?>[]{ Unmarshaller.class, Object.class }; |
| if (hasBeforeUnmarshalCallback) { |
| try { |
| Method beforeUnmarshal = PrivilegedAccessHelper.callDoPrivilegedWithException( |
| () -> PrivilegedAccessHelper.getMethod(domainClass, "beforeUnmarshal", params, false) |
| ); |
| setBeforeUnmarshalCallback(beforeUnmarshal); |
| } catch (NoSuchMethodException nsmex) { |
| // Ignore this exception |
| } catch (Exception ex) { |
| throw new RuntimeException(String.format("Failed initialization of beforeMarshal method of %s class", domainClassName), ex); |
| } |
| } |
| if (hasAfterUnmarshalCallback) { |
| try { |
| Method afterUnmarshal = PrivilegedAccessHelper.callDoPrivilegedWithException( |
| () -> PrivilegedAccessHelper.getMethod(domainClass, "afterUnmarshal", params, false) |
| ); |
| setAfterUnmarshalCallback(afterUnmarshal); |
| } catch (NoSuchMethodException nsmex) { |
| // Ignore this exception |
| } catch (Exception ex) { |
| throw new RuntimeException(String.format("Failed initialization of afterMarshal method of %s class", domainClassName), ex); |
| } |
| } |
| } |
| |
| /** |
| * Should not use this method - the init method will |
| * overwrite the set value. |
| */ |
| public void setAfterUnmarshalCallback(Method method) { |
| afterUnmarshalCallback = method; |
| } |
| |
| public void setHasAfterUnmarshalCallback() { |
| hasAfterUnmarshalCallback = true; |
| } |
| |
| /** |
| * Should not use this method - the init method will |
| * overwrite the set value. |
| */ |
| public void setBeforeUnmarshalCallback(Method method) { |
| beforeUnmarshalCallback = method; |
| } |
| |
| public void setHasBeforeUnmarshalCallback() { |
| hasBeforeUnmarshalCallback = true; |
| } |
| |
| /** |
| * Should use setDomainClassName - the init method will overwrite |
| * the set value with Class.forName(domainClassName) |
| * |
| */ |
| public void setDomainClass(Class<?> clazz) { |
| domainClass = clazz; |
| setDomainClassName(clazz.getName()); |
| } |
| |
| public void setDomainClassName(String className) { |
| domainClassName = className; |
| } |
| } |