/*
 * Copyright 2019-2019 the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.cloud.function.context.catalog;

import java.util.function.Consumer;

import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;

import org.springframework.messaging.Message;

/**
 * @author Dave Syer
 */
public class MessageConsumer implements Consumer<Publisher<Message<?>>> {

	private Consumer<Object> delegate;

	@SuppressWarnings("unchecked")
	public MessageConsumer(Consumer<?> input) {
		this.delegate = (Consumer<Object>) input;
	}

	@Override
	public void accept(Publisher<Message<?>> input) {
		Flux.from(input).map(Message::getPayload).subscribe(this.delegate::accept);
	}

}
