/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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 org.apache.syncope.sra.predicates;
  
  import java.util.function.Predicate;
  import org.springframework.cloud.gateway.handler.AsyncPredicate;
  import org.springframework.cloud.gateway.handler.predicate.AbstractRoutePredicateFactory;
  import org.springframework.web.server.ServerWebExchange;
  
  /**
   * Base class for custom predicate factories.
   */
  public abstract class CustomRoutePredicateFactory
          extends AbstractRoutePredicateFactory<CustomRoutePredicateFactory.Config> {
  
      public static class Config {
  
          private String data;
  
          public String getData() {
              return data;
          }
  
          public void setData(final String data) {
              this.data = data;
          }
      }
  
      public CustomRoutePredicateFactory() {
          super(CustomRoutePredicateFactory.Config.class);
      }
  
      @Override
      public abstract AsyncPredicate<ServerWebExchange> applyAsync(Config config);
  
      @Override
      public Predicate<ServerWebExchange> apply(final Config config) {
          throw new UnsupportedOperationException(getClass().getName() + " is only async.");
      }
  }