ReflectionUtils.java

/*
 * Copyright (C) 2013 David Sowerby
 * 
 * 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 uk.q3c.util;

import java.util.HashSet;
import java.util.Set;

public class ReflectionUtils {

    public static Set<Class<?>> allInterfaces(Class<?> clazz) {
        Set<Class<?>> allInterfaces = new HashSet<>();
        Class<?> classToCheck = clazz;
        while (classToCheck != null) {
            Class<?>[] interfaces = classToCheck.getInterfaces();
            for (Class<?> intf : interfaces) {
                allInterfaces.add(intf);
            }
            classToCheck = classToCheck.getSuperclass();
        }
        return allInterfaces;
    }
}