/*
* Copyright 2003,2004 The Apache Software Foundation
*
* Licensed 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 net.sf.cglib.core;
import java.lang.reflect.*;
import org.objectweb.asm.Type;
public class VisibilityPredicate implements Predicate {
private boolean protectedOk;
private String pkg;
private boolean samePackageOk;
public VisibilityPredicate(Class source, boolean protectedOk) {
this.protectedOk = protectedOk;
// same package is not ok for the bootstrap loaded classes. In all other cases we are
// generating classes in the same classloader
this.samePackageOk = source.getClassLoader() != null;
pkg = TypeUtils.getPackageName(Type.getType(source));
}
public boolean evaluate(Object arg) {
Member member = (Member)arg;
int mod = member.getModifiers();
if (Modifier.isPrivate(mod)) {
return false;
} else if (Modifier.isPublic(mod)) {
return true;
} else if (Modifier.isProtected(mod) && protectedOk) {
// protected is fine if 'protectedOk' is true (for subclasses)
return true;
} else {
// protected/package private if the member is in the same package as the source class
// and we are generating into the same classloader.
return samePackageOk
&& pkg.equals(TypeUtils.getPackageName(Type.getType(member.getDeclaringClass())));
}
}
}