MenuFilter.java

/*
 * Copyright [2014] [Christian Loehnert, krampenschiesser@gmail.com]
 * 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 de.ks.menu;

import java.util.Collection;
import java.util.function.Consumer;

/**
 *
 */
public class MenuFilter implements Consumer<Class<?>> {
  private final Collection<Class<?>> items;
  private final String menuPath;

  public MenuFilter(String menuPath, Collection<Class<?>> items) {
    this.menuPath = menuPath;
    this.items = items;
  }

  @Override
  public void accept(Class<?> o) {
    if (o == null) {
      return;
    }
    if (!o.isAnnotationPresent(MenuItem.class)) {
      return;
    }
    MenuItem annotation = o.getAnnotation(MenuItem.class);
    if (annotation.value().startsWith(menuPath)) {
      items.add(o);
    }
  }
}