paho-mqtt5-shared-subscriptions/src/main/java/org/apache/camel/example/spring/boot/paho/mqtt5/PahoMqtt5RouteBuilder.java

/*
 * 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.camel.example.spring.boot.paho.mqtt5;

import org.apache.camel.builder.RouteBuilder;
import org.springframework.stereotype.Component;
import java.util.concurrent.atomic.AtomicInteger;

import static org.apache.camel.LoggingLevel.DEBUG;
import static org.apache.camel.LoggingLevel.INFO;

@Component
public class PahoMqtt5RouteBuilder extends RouteBuilder {

    AtomicInteger counter = new AtomicInteger(0);

    @Override
    public void configure() throws Exception {

        // The following consumers share the same conversation group (group1) and will be loadbalanced
        from("paho-mqtt5:{{consumer.topic}}?brokerUrl={{broker.url}}&clientId=consumerA")
                .id("consumerA")
                .log(INFO, "CONSUMER A - MESSAGE: ${body}");

        from("paho-mqtt5:{{consumer.topic}}?brokerUrl={{broker.url}}&clientId=consumerB")
                .id("consumerB")
                .log(INFO, "CONSUMER B - MESSAGE: ${body}");

        from("paho-mqtt5:{{consumer.topic}}?brokerUrl={{broker.url}}&clientId=consumerC")
                .id("consumerC")
                .log(INFO, "CONSUMER C - MESSAGE: ${body}");

        from("paho-mqtt5:{{consumer.topic}}?brokerUrl={{broker.url}}&clientId=consumerD")
                .id("consumerD")
                .log(INFO, "CONSUMER D - MESSAGE: ${body}");

        from("paho-mqtt5:{{consumer.topic}}?brokerUrl={{broker.url}}&clientId=consumerE")
                .id("consumerE")
                .log(INFO, "CONSUMER E - MESSAGE: ${body}");

        from("paho-mqtt5:{{consumer.topic}}?brokerUrl={{broker.url}}&clientId=consumerF")
                .id("consumerF")
                .log(INFO, "CONSUMER F - MESSAGE: ${body}");

        // the producer
        from("timer://foo?fixedRate=true&period={{producer.period}}")
                .id("producer")
                .process(exchange -> {
                    exchange.getIn().setBody(counter.getAndIncrement()+" - hello world");
                })
                .log(DEBUG,"PRODUCER   - MESSAGE: ${body}")
                .to("paho-mqtt5:{{producer.topic}}?brokerUrl={{broker.url}}&clientId=producer");
    }
}