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/*
 * 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.javamodel.reflection;

import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.GenericArrayType;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.lang.reflect.TypeVariable;
import java.lang.reflect.WildcardType;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.eclipse.persistence.exceptions.JAXBException;
import org.eclipse.persistence.internal.security.PrivilegedAccessHelper;
import org.eclipse.persistence.jaxb.javamodel.JavaAnnotation;
import org.eclipse.persistence.jaxb.javamodel.JavaClass;
import org.eclipse.persistence.jaxb.javamodel.JavaClassInstanceOf;
import org.eclipse.persistence.jaxb.javamodel.JavaConstructor;
import org.eclipse.persistence.jaxb.javamodel.JavaField;
import org.eclipse.persistence.jaxb.javamodel.JavaMethod;
import org.eclipse.persistence.jaxb.javamodel.JavaPackage;
import org.eclipse.persistence.logging.AbstractSessionLog;
import org.eclipse.persistence.logging.SessionLog;

/**
 * INTERNAL:
 * 

Purpose:A wrapper class for a JDK Class. This implementation * of the EclipseLink JAXB 2.X Java model simply makes reflective calls on the * underlying JDK object. * *

Responsibilities: *

    *
  • Provide access to the underlying JDK Class' name, package, * method/field names and parameters, annotations, etc.
  • *
* * @since Oracle TopLink 11.1.1.0.0 * @see org.eclipse.persistence.jaxb.javamodel.JavaClass * @see java.lang.Class */ public class JavaClassImpl implements JavaClass { protected ParameterizedType jType; protected Class jClass; protected JavaModelImpl javaModelImpl; protected boolean isMetadataComplete; protected JavaClass superClassOverride; protected static final String XML_REGISTRY_CLASS_NAME = "jakarta.xml.bind.annotation.XmlRegistry"; public JavaClassImpl(Class javaClass, JavaModelImpl javaModelImpl) { this.jClass = javaClass; this.javaModelImpl = javaModelImpl; isMetadataComplete = false; } public JavaClassImpl(ParameterizedType javaType, Class javaClass, JavaModelImpl javaModelImpl) { this.jType = javaType; this.jClass = javaClass; this.javaModelImpl = javaModelImpl; isMetadataComplete = false; } public void setJavaModelImpl(JavaModelImpl javaModel) { this.javaModelImpl = javaModel; } @Override public Collection getActualTypeArguments() { ArrayList argCollection = new ArrayList<>(); if (jType != null) { Type[] params = jType.getActualTypeArguments(); for (Type type : params) { if (type instanceof ParameterizedType) { ParameterizedType pt = (ParameterizedType) type; argCollection.add(new JavaClassImpl(pt, (Class) pt.getRawType(), javaModelImpl)); } else if(type instanceof WildcardType){ Type[] upperTypes = ((WildcardType)type).getUpperBounds(); if(upperTypes.length >0){ Type upperType = upperTypes[0]; if(upperType instanceof Class){ argCollection.add(javaModelImpl.getClass((Class) upperType)); } } } else if (type instanceof Class) { argCollection.add(javaModelImpl.getClass((Class) type)); } else if(type instanceof GenericArrayType) { Class genericTypeClass = (Class)((GenericArrayType)type).getGenericComponentType(); genericTypeClass = java.lang.reflect.Array.newInstance(genericTypeClass, 0).getClass(); argCollection.add(javaModelImpl.getClass(genericTypeClass)); } else if(type instanceof TypeVariable) { Type[] boundTypes = ((TypeVariable) type).getBounds(); if(boundTypes.length > 0) { Type boundType = boundTypes[0]; if(boundType instanceof Class) { argCollection.add(javaModelImpl.getClass((Class) boundType)); } } } } } return argCollection; } @Override public String toString() { return getName(); } /** * Assumes JavaType is a JavaClassImpl instance */ @Override public JavaAnnotation getAnnotation(JavaClass arg0) { // the only annotation we will return if isMetadataComplete == true is XmlRegistry if (arg0 != null && (!isMetadataComplete || arg0.getQualifiedName().equals(XML_REGISTRY_CLASS_NAME))) { Class annotationClass = ((JavaClassImpl) arg0).getJavaClass(); if (javaModelImpl.getAnnotationHelper().isAnnotationPresent(getAnnotatedElement(), annotationClass)) { return new JavaAnnotationImpl(this.javaModelImpl.getAnnotationHelper().getAnnotation(getAnnotatedElement(), annotationClass)); } } return null; } @Override public Collection getAnnotations() { List annotationCollection = new ArrayList<>(); if (!isMetadataComplete) { Annotation[] annotations = javaModelImpl.getAnnotationHelper().getAnnotations(getAnnotatedElement()); for (Annotation annotation : annotations) { annotationCollection.add(new JavaAnnotationImpl(annotation)); } } return annotationCollection; } @Override public Collection getDeclaredClasses() { List classCollection = new ArrayList<>(); Class[] classes = jClass.getDeclaredClasses(); for (Class javaClass : classes) { classCollection.add(javaModelImpl.getClass(javaClass)); } return classCollection; } @Override public JavaField getDeclaredField(String arg0) { try { return getJavaField(jClass.getDeclaredField(arg0)); } catch (NoSuchFieldException nsfe) { return null; } } @Override public Collection getDeclaredFields() { List fieldCollection = new ArrayList<>(); Field[] fields = PrivilegedAccessHelper.getDeclaredFields(jClass); for (Field field : fields) { if (!field.trySetAccessible()) { AbstractSessionLog.getLog().log(SessionLog.FINE, SessionLog.MISC, "set_accessible_in", "field", field.getName(), jClass.getName()); } fieldCollection.add(getJavaField(field)); } return fieldCollection; } /** * Assumes JavaType[] contains JavaClassImpl instances */ @Override public JavaMethod getDeclaredMethod(String arg0, JavaClass[] arg1) { if (arg1 == null) { arg1 = new JavaClass[0]; } Class[] params = new Class[arg1.length]; for (int i=0; i getDeclaredMethods() { ArrayList methodCollection = new ArrayList<>(); Method[] methods = jClass.getDeclaredMethods(); for (Method method : methods) { methodCollection.add(getJavaMethod(method)); } return methodCollection; } @Override public JavaConstructor getConstructor(JavaClass[] paramTypes) { if (paramTypes == null) { paramTypes = new JavaClass[0]; } Class[] params = new Class[paramTypes.length]; for (int i=0; i[] params = new Class[paramTypes.length]; for (int i=0; i getConstructors() { Constructor[] constructors = this.jClass.getConstructors(); ArrayList constructorCollection = new ArrayList(constructors.length); for(Constructor next:constructors) { constructorCollection.add(new JavaConstructorImpl(next, javaModelImpl)); } return constructorCollection; } @Override public Collection getDeclaredConstructors() { Constructor[] constructors = this.jClass.getDeclaredConstructors(); ArrayList constructorCollection = new ArrayList(constructors.length); for(Constructor next:constructors) { constructorCollection.add(new JavaConstructorImpl(next, javaModelImpl)); } return constructorCollection; } public JavaField getField(String arg0) { try { Field field = PrivilegedAccessHelper.getField(jClass, arg0, true); return getJavaField(field); } catch (NoSuchFieldException nsfe) { return null; } } public Collection getFields() { ArrayList fieldCollection = new ArrayList<>(); Field[] fields = PrivilegedAccessHelper.getFields(jClass); for (Field field : fields) { fieldCollection.add(getJavaField(field)); } return fieldCollection; } public Class getJavaClass() { return jClass; } /** * Assumes JavaType[] contains JavaClassImpl instances */ @Override public JavaMethod getMethod(String arg0, JavaClass[] arg1) { if (arg1 == null) { arg1 = new JavaClass[0]; } Class[] params = new Class[arg1.length]; for (int i=0; i getMethods() { ArrayList methodCollection = new ArrayList<>(); Method[] methods = PrivilegedAccessHelper.getMethods(jClass); for (Method method : methods) { methodCollection.add(getJavaMethod(method)); } return methodCollection; } @Override public String getName() { return jClass.getName(); } @Override public JavaPackage getPackage() { return new JavaPackageImpl(jClass.getPackage(), javaModelImpl, isMetadataComplete); } @Override public String getPackageName() { if(jClass.getPackage() != null){ return jClass.getPackage().getName(); }else{ Class nonInnerClass = jClass; Class enclosingClass = jClass.getEnclosingClass(); while(enclosingClass != null){ nonInnerClass = enclosingClass; enclosingClass = nonInnerClass.getEnclosingClass(); } String className = nonInnerClass.getCanonicalName(); if(className !=null){ int index = className.lastIndexOf('.'); if(index > -1){ return className.substring(0, index); } } } return null; } @Override public String getQualifiedName() { return jClass.getName(); } @Override public String getRawName() { return jClass.getCanonicalName(); } @Override public JavaClass getSuperclass() { if(this.superClassOverride != null) { return this.superClassOverride; } if(jClass.isInterface()) { Class[] superInterfaces = jClass.getInterfaces(); if(superInterfaces != null) { if(superInterfaces.length == 1) { return javaModelImpl.getClass(superInterfaces[0]); } else { Class parent = null; for(Class next:superInterfaces) { if(!(next.getName().startsWith("java.") || next.getName().startsWith("javax.") || next.getName().startsWith("jakarta."))) { if(parent == null) { parent = next; } else { throw JAXBException.invalidInterface(jClass.getName()); } } } return javaModelImpl.getClass(parent); } } } return javaModelImpl.getClass(jClass.getSuperclass()); } @Override public Type[] getGenericInterfaces() { return jClass.getGenericInterfaces(); } @Override public Type getGenericSuperclass() { return jClass.getGenericSuperclass(); } @Override public boolean hasActualTypeArguments() { return getActualTypeArguments().size() > 0; } public JavaField getJavaField(Field field) { return new JavaFieldImpl(field, javaModelImpl, isMetadataComplete); } public JavaMethod getJavaMethod(Method method) { return new JavaMethodImpl(method, javaModelImpl, isMetadataComplete); } public JavaClass getOwningClass() { return javaModelImpl.getClass(jClass.getEnclosingClass()); } @Override public boolean isAnnotation() { return jClass.isAnnotation(); } @Override public boolean isArray() { return jClass.isArray(); } public AnnotatedElement getAnnotatedElement() { return jClass; } @Override public boolean isAssignableFrom(JavaClass arg0) { if (!(arg0 instanceof JavaClassImpl)) { return false; } if(hasCustomSuperClass(arg0)) { return this.customIsAssignableFrom(arg0); } return jClass.isAssignableFrom(((JavaClassImpl) arg0).getJavaClass()); } private boolean customIsAssignableFrom(JavaClass arg0) { JavaClassImpl jClass = (JavaClassImpl)arg0; Class cls = jClass.getJavaClass(); if(cls == this.jClass) { return true; } Class[] interfaces = cls.getInterfaces(); for(Class nextInterface:interfaces) { if(nextInterface == this.jClass) { return true; } if(customIsAssignableFrom(javaModelImpl.getClass(nextInterface))) { return true; } } if(!(jClass.isInterface())) { JavaClassImpl superJavaClass = (JavaClassImpl)jClass.getSuperclass(); if(superJavaClass.getName().equals("java.lang.Object")) { return this.jClass == superJavaClass.getJavaClass(); } return customIsAssignableFrom(superJavaClass); } return false; } private boolean hasCustomSuperClass(JavaClass arg0) { if(arg0 == null) { return false; } if(!this.javaModelImpl.hasXmlBindings()) { return false; } if(!(arg0.getClass() == this.getClass())) { return false; } if(arg0.getName().equals("java.lang.Object")) { return false; } JavaClassImpl jClass = (JavaClassImpl)arg0; return jClass.getSuperClassOverride() != null || hasCustomSuperClass(jClass.getSuperclass()); } @Override public boolean isEnum() { return jClass.isEnum(); } @Override public boolean isInterface() { return jClass.isInterface(); } @Override public boolean isMemberClass() { return jClass.isMemberClass(); } @Override public boolean isPrimitive() { return jClass.isPrimitive(); } @Override public boolean isAbstract() { return Modifier.isAbstract(getModifiers()); } @Override public boolean isPrivate() { return Modifier.isPrivate(getModifiers()); } @Override public boolean isProtected() { return Modifier.isProtected(getModifiers()); } @Override public boolean isPublic() { return Modifier.isPublic(getModifiers()); } @Override public boolean isStatic() { return Modifier.isStatic(getModifiers()); } @Override public int getModifiers() { return jClass.getModifiers(); } @Override public boolean isFinal() { return Modifier.isFinal(getModifiers()); } @Override public boolean isSynthetic() { return jClass.isSynthetic(); } @Override public JavaClassInstanceOf instanceOf() { return JavaClassInstanceOf.JAVA_CLASS_IMPL; } @Override public JavaClass getComponentType() { if(!isArray()) { return null; } return javaModelImpl.getClass(this.jClass.getComponentType()); } public JavaClass getSuperClassOverride() { return superClassOverride; } public void setSuperClassOverride(JavaClass superClassOverride) { this.superClassOverride = superClassOverride; } /** * Set the indicator for XML metadata complete - if true, * annotations will be ignored. * */ void setIsMetadataComplete(Boolean isMetadataComplete) { if(isMetadataComplete != null){ this.isMetadataComplete = isMetadataComplete; } } @Override public JavaAnnotation getDeclaredAnnotation(JavaClass arg0) { // the only annotation we will return if isMetadataComplete == true is XmlRegistry if (arg0 != null && (!isMetadataComplete || arg0.getQualifiedName().equals(XML_REGISTRY_CLASS_NAME))) { Class annotationClass = ((JavaClassImpl) arg0).getJavaClass(); Annotation[] annotations = javaModelImpl.getAnnotationHelper().getDeclaredAnnotations(getAnnotatedElement()); for (Annotation annotation : annotations) { if (annotation.annotationType().equals(annotationClass)) { return new JavaAnnotationImpl(annotation); } } } return null; } @Override public Collection getDeclaredAnnotations() { List annotationCollection = new ArrayList<>(); if (!isMetadataComplete) { Annotation[] annotations = javaModelImpl.getAnnotationHelper().getDeclaredAnnotations(getAnnotatedElement()); for (Annotation annotation : annotations) { annotationCollection.add(new JavaAnnotationImpl(annotation)); } } return annotationCollection; } }




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