/*
* 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 org.apache.isis.core.metamodel.specloader.classsubstitutor;
import java.util.Set;
import com.google.common.collect.Sets;
import org.apache.isis.applib.DomainObjectContainer;
import org.apache.isis.core.commons.lang.ClassUtil;
/**
* Provides capability to translate or ignore classes.
*/
public class ClassSubstitutor {
//region > constructor
public ClassSubstitutor() {
ignore(DomainObjectContainer.class);
// ignore cglib
ignore("net.sf.cglib.proxy.Factory");
ignore("net.sf.cglib.proxy.MethodProxy");
ignore("net.sf.cglib.proxy.Callback");
// ignore javassist
ignore("javassist.util.proxy.ProxyObject");
ignore("javassist.util.proxy.MethodHandler");
}
//endregion
//region > getClass(Class)
public Class<?> getClass(final Class<?> cls) {
if (cls == null) {
return null;
}
// ignore datanucleus proxies
if(cls.getName().startsWith("org.datanucleus")) {
return getClass(cls.getSuperclass());
}
if (shouldIgnore(cls)) {
return null;
}
final Class<?> superclass = cls.getSuperclass();
if(superclass != null && superclass.isEnum()) {
return superclass;
}
if (ClassUtil.directlyImplements(cls, JavassistEnhanced.class)) {
return getClass(cls.getSuperclass());
}
return cls;
}
//endregion
//region > helpers
private final Set<Class<?>> classesToIgnore = Sets.newHashSet();
private final Set<String> classNamesToIgnore = Sets.newHashSet();
/**
* For any classes registered as ignored, {@link #getClass(Class)} will
* return <tt>null</tt>.
*/
private boolean ignore(final Class<?> q) {
return classesToIgnore.add(q);
}
/**
* For any classes registered as ignored, {@link #getClass(Class)} will
* return <tt>null</tt>.
*/
private boolean ignore(final String className) {
return classNamesToIgnore.add(className);
}
private boolean shouldIgnore(final Class<?> cls) {
if (cls.isArray()) {
return shouldIgnore(cls.getComponentType());
}
return classesToIgnore.contains(cls) || classNamesToIgnore.contains(cls.getCanonicalName());
}
//endregion
}