| /* |
| * Copyright (c) 2012, 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: |
| // tware - initial API and implementation from Oracle TopLink |
| // 19/04/2014-2.6 Lukas Jungmann |
| // - 429992: JavaSE 8/ASM 5.0.1 support (EclipseLink silently ignores Entity classes with lambda expressions) |
| package org.eclipse.persistence.internal.jpa.rs.weaving; |
| |
| import org.eclipse.persistence.dynamic.DynamicClassLoader; |
| import org.eclipse.persistence.dynamic.EclipseLinkClassWriter; |
| import org.eclipse.persistence.internal.libraries.asm.EclipseLinkASMClassWriter; |
| import org.eclipse.persistence.internal.libraries.asm.MethodVisitor; |
| import org.eclipse.persistence.internal.libraries.asm.Opcodes; |
| |
| public class RestAdapterClassWriter implements EclipseLinkClassWriter, Opcodes { |
| |
| public static final String CLASS_NAME_SUFFIX = "PersistenceRestAdapter"; |
| public static final String REFERENCE_ADAPTER_SHORT_SIGNATURE = "org/eclipse/persistence/jpa/rs/util/xmladapters/ReferenceAdapter"; |
| |
| /** |
| * Creates a class name that can be used for a ReferenceAdapter subclass for the given |
| * classname. |
| */ |
| public static String constructClassNameForReferenceAdapter(String className){ |
| String packageName = className.lastIndexOf('.') >= 0 ? className.substring(0, className.lastIndexOf('.')) : ""; |
| String shortClassName = className.lastIndexOf('.') >= 0 ? className.substring(className.lastIndexOf('.') + 1) : className; |
| return packageName + "._" + shortClassName + CLASS_NAME_SUFFIX; |
| |
| } |
| |
| protected String parentClassName; |
| |
| public RestAdapterClassWriter(String parentClassName){ |
| this.parentClassName = parentClassName; |
| } |
| |
| public String getClassName(){ |
| return constructClassNameForReferenceAdapter(parentClassName); |
| } |
| |
| public String getASMParentClassName(){ |
| return parentClassName.replace('.', '/'); |
| } |
| |
| public String getASMClassName(){ |
| return getClassName().replace('.', '/'); |
| } |
| |
| @Override |
| public byte[] writeClass(DynamicClassLoader loader, String className) |
| throws ClassNotFoundException { |
| |
| EclipseLinkASMClassWriter cw = new EclipseLinkASMClassWriter(0); |
| cw.visit(ACC_PUBLIC + ACC_SUPER, getASMClassName(), "L" + REFERENCE_ADAPTER_SHORT_SIGNATURE + "<L" + getASMParentClassName() + ";>;", REFERENCE_ADAPTER_SHORT_SIGNATURE, null); |
| |
| MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
| mv.visitCode(); |
| mv.visitVarInsn(ALOAD, 0); |
| mv.visitMethodInsn(INVOKESPECIAL, REFERENCE_ADAPTER_SHORT_SIGNATURE, "<init>", "()V", false); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| |
| mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(Ljava/lang/String;Lorg/eclipse/persistence/jpa/rs/PersistenceContext;)V", null, null); |
| mv.visitCode(); |
| mv.visitVarInsn(ALOAD, 0); |
| mv.visitVarInsn(ALOAD, 1); |
| mv.visitVarInsn(ALOAD, 2); |
| mv.visitMethodInsn(INVOKESPECIAL, REFERENCE_ADAPTER_SHORT_SIGNATURE, "<init>", "(Ljava/lang/String;Lorg/eclipse/persistence/jpa/rs/PersistenceContext;)V", false); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(3, 3); |
| mv.visitEnd(); |
| |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| |
| @Override |
| public boolean isCompatible(EclipseLinkClassWriter writer) { |
| return getParentClassName().equals(writer.getParentClassName()); |
| } |
| |
| @Override |
| public Class<?> getParentClass() { |
| return null; |
| } |
| |
| @Override |
| public String getParentClassName() { |
| return parentClassName; |
| } |
| |
| } |
| |