/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jakarta.el;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Method;
import jakarta.el.BeanELResolver.BeanProperties;
import jakarta.el.BeanELResolver.BeanProperty;
class BeanSupportFull extends BeanSupport {
@Override
BeanProperties getBeanProperties(Class<?> type) {
return new BeanPropertiesFull(type);
}
static final class BeanPropertiesFull extends BeanProperties {
BeanPropertiesFull(Class<?> type) throws ELException {
super(type);
try {
BeanInfo info = Introspector.getBeanInfo(this.type);
PropertyDescriptor[] pds = info.getPropertyDescriptors();
for (PropertyDescriptor pd : pds) {
this.properties.put(pd.getName(), new BeanPropertyFull(type, pd));
}
/*
* https://bugs.openjdk.org/browse/JDK-8071693 - Introspector ignores default interface methods.
*
* This bug is fixed in Java 21 b21. This workaround can be removed once the minimum Java version is 21.
* Populating from any interfaces causes default methods to be included.
*/
populateFromInterfaces(type);
} catch (IntrospectionException ie) {
throw new ELException(ie);
}
}
private void populateFromInterfaces(Class<?> aClass) throws IntrospectionException {
Class<?>[] interfaces = aClass.getInterfaces();
for (Class<?> ifs : interfaces) {
BeanInfo info = Introspector.getBeanInfo(ifs);
PropertyDescriptor[] pds = info.getPropertyDescriptors();
for (PropertyDescriptor pd : pds) {
if (!this.properties.containsKey(pd.getName())) {
this.properties.put(pd.getName(), new BeanPropertyFull(this.type, pd));
}
}
populateFromInterfaces(ifs);
}
Class<?> superclass = aClass.getSuperclass();
if (superclass != null) {
populateFromInterfaces(superclass);
}
}
}
static final class BeanPropertyFull extends BeanProperty {
private final PropertyDescriptor descriptor;
BeanPropertyFull(Class<?> owner, PropertyDescriptor descriptor) {
super(owner, descriptor.getPropertyType());
this.descriptor = descriptor;
}
@Override
Method getWriteMethod() {
return descriptor.getWriteMethod();
}
@Override
Method getReadMethod() {
return descriptor.getReadMethod();
}
@Override
String getName() {
return descriptor.getName();
}
}
}