pl.ais.commons.bean.facade.ClassPredicates Maven / Gradle / Ivy
package pl.ais.commons.bean.facade;
import net.sf.cglib.proxy.Factory;
import java.lang.reflect.Modifier;
import java.util.function.Predicate;
/**
* @author Warlock, AIS.PL
* @since 1.2.1
*/
final class ClassPredicates {
private ClassPredicates() {
throw new AssertionError("Creation of " + getClass().getName() + " instances is forbidden.");
}
/**
* @return Predicate matched by classes being protected or public, having no final modifier applied
*/
public static Predicate> inheritable() {
return candidate -> {
final int modifiers = candidate.getModifiers();
return !Modifier.isFinal(modifiers) && (Modifier.isProtected(modifiers) || Modifier.isPublic(modifiers));
};
}
/**
* Verifies if candidate class matches the predicate.
*
* @param candidate candidate class
* @param predicate predicate to be matched
* @return {code true} if candidate class matches the predicate, {@code false} otherwise
*/
public static boolean is(final Class candidate, final Predicate> predicate) {
return predicate.test(candidate);
}
/**
* @return Predicate matched by classes being CGLIB proxies
*/
public static Predicate> proxyClass() {
return candidate -> Factory.class.isAssignableFrom(candidate);
}
/**
* @return Predicate matched by classes being inheritable, and not proxied already
*/
public static Predicate> proxyable() {
return inheritable().and(proxyClass().negate());
}
}