MqttMessagePublisher.java

/**
 * Copyright (c) 2010-2016 by the respective copyright holders.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package org.openhab.action.mqtt.internal;

import org.openhab.io.transport.mqtt.MqttMessageProducer;
import org.openhab.io.transport.mqtt.MqttSenderChannel;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * This class implementing Message Producer from MQTT IO service.
 *
 * @author Klaudiusz Staniek
 * @since 1.8.0
 */
public class MqttMessagePublisher implements MqttMessageProducer {

    private static final Logger logger = LoggerFactory.getLogger(MqttMessagePublisher.class);

    private MqttSenderChannel senderChannel;

    public void publish(String topic, String message) {
        if (senderChannel == null) {
            return;
        }
        try {
            senderChannel.publish(topic, message.getBytes());
        } catch (Exception e) {
            logger.error("Error publishing message: {}", e.getMessage());
        }
    }

    @Override
    public void setSenderChannel(MqttSenderChannel channel) {
        senderChannel = channel;
    }
}