RabbitConsumer.java

/*
 * Copyright 2014 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
 *
 *      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 foo;

import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
import org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.function.Consumer;

/**
 * @author Gary Russell
 *
 */
@EnableAutoConfiguration
public class RabbitConsumer {

	@Bean
	public RabbitPrinter printer(ConnectionFactory cf) {
		return new RabbitPrinter(cf)
				.forQ("fooQ")
				.withConsumer(System.out::println);
	}

	public static void main(String[] args) throws Exception {
		SpringApplication.run(RabbitConsumer.class, args);
	}

	public class RabbitPrinter extends SimpleMessageListenerContainer {

		public RabbitPrinter(ConnectionFactory cf) {
			super(cf);
		}

		public RabbitPrinter forQ(String q) {
			this.setQueueNames(q);
			return this;
		}

		public RabbitPrinter withConsumer(Consumer<String> p) {
			this.setMessageListener(new MessageListenerAdapter(p, "accept"));
			return this;
		}
	}

}

RabbitConsumer2.java

/*
 * Copyright 2014 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
 *
 *      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 foo;

import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
import org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.function.Consumer;

/**
 * @author Gary Russell
 *
 */
@EnableAutoConfiguration
public class RabbitConsumer2 {

	public static void main(String[] args) throws Exception {
		SpringApplication.run(RabbitConsumer2.class, args);
	}

	@Bean
	public SimpleMessageListenerContainer printer(ConnectionFactory cf) {
		SimpleMessageListenerContainer container = new SimpleMessageListenerContainer(cf);
		container.setQueueNames("fooQ");
		Consumer<String> p = System.out::println;
		container.setMessageListener(new MessageListenerAdapter(p, "accept"));
		return container;
	}

}