/*
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.weld.util;
import java.lang.annotation.Inherited;
import java.util.ArrayList;
import java.util.List;
import org.jboss.jandex.AnnotationInstance;
import org.jboss.jandex.AnnotationTarget;
import org.jboss.jandex.ClassInfo;
import org.jboss.jandex.DotName;
import org.jboss.weld.util.Function;
import org.jboss.weld.util.Predicate;
/**
* Utilities for working with Jandex indices.
*
* @author Jozef Hartinger
*
*/
public class Indices {
public static final DotName INHERITED_NAME = DotName.createSimple(Inherited.class.getName());
public static final Function<ClassInfo, String> CLASS_INFO_TO_FQCN = new Function<ClassInfo, String>() {
@Override
public String apply(ClassInfo input) {
return input.name().toString();
}
};
public static final Predicate<ClassInfo> ANNOTATION_PREDICATE = new Predicate<ClassInfo>() {
@Override
public boolean test(ClassInfo input) {
return isAnnotation(input);
}
};
private Indices() {
}
private static final int ANNOTATION = 0x00002000;
public static boolean isAnnotation(ClassInfo clazz) {
return (clazz.flags() & ANNOTATION) != 0;
}
/**
* Determines a list of classes the given annotation instances are defined on. If an annotation instance is not defined on a
* class (e.g. on a member) this annotation instance is not reflected anyhow in the resulting list.
*/
public static List<ClassInfo> getAnnotatedClasses(List<AnnotationInstance> instances) {
List<ClassInfo> result = new ArrayList<ClassInfo>();
for (AnnotationInstance instance : instances) {
AnnotationTarget target = instance.target();
if (target instanceof ClassInfo) {
result.add((ClassInfo) target);
}
}
return result;
}
}