content: /*
   * 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.activemq.artemis.tests.integration.mqtt;
  
  import javax.net.ssl.SSLContext;
  import java.util.concurrent.TimeUnit;
  
  import org.fusesource.mqtt.client.BlockingConnection;
  import org.fusesource.mqtt.client.MQTT;
  import org.fusesource.mqtt.client.Message;
  import org.fusesource.mqtt.client.QoS;
  import org.fusesource.mqtt.client.Topic;
  
  import static org.fusesource.hawtbuf.UTF8Buffer.utf8;
  
  public class FuseMQTTClientProvider implements MQTTClientProvider {
  
     private final MQTT mqtt = new MQTT();
     private BlockingConnection connection;
  
     @Override
     public void connect(String host) throws Exception {
        mqtt.setHost(host);
        mqtt.setVersion("3.1.1");
        // shut off connect retry
        mqtt.setConnectAttemptsMax(0);
        mqtt.setReconnectAttemptsMax(0);
        connection = mqtt.blockingConnection();
  
        connection.connect();
     }
  
     @Override
     public void disconnect() throws Exception {
        if (this.connection != null) {
           this.connection.disconnect();
        }
     }
  
     @Override
     public void publish(String topic, byte[] payload, int qos) throws Exception {
        publish(topic, payload, qos, false);
     }
  
     @Override
     public void publish(String topic, byte[] payload, int qos, boolean retained) throws Exception {
        connection.publish(topic, payload, QoS.values()[qos], retained);
     }
  
     @Override
     public void subscribe(String topic, int qos) throws Exception {
        Topic[] topics = {new Topic(utf8(topic), QoS.values()[qos])};
        connection.subscribe(topics);
     }
  
     @Override
     public void unsubscribe(String topic) throws Exception {
        connection.unsubscribe(new String[]{topic});
     }
  
     @Override
     public byte[] receive(int timeout) throws Exception {
        byte[] result = null;
        Message message = connection.receive(timeout, TimeUnit.MILLISECONDS);
        if (message != null) {
           result = message.getPayload();
           message.ack();
        }
        return result;
     }
  
     @Override
     public void setSslContext(SSLContext sslContext) {
        mqtt.setSslContext(sslContext);
     }
  
     @Override
     public void setWillMessage(String string) {
        mqtt.setWillMessage(string);
     }
  
     @Override
     public void setWillTopic(String topic) {
        mqtt.setWillTopic(topic);
     }
  
     @Override
     public void setClientId(String clientId) {
        mqtt.setClientId(clientId);
     }
  
     @Override
     public void kill() throws Exception {
        connection.kill();
     }
  
     @Override
     public void setKeepAlive(int keepAlive) throws Exception {
        mqtt.setKeepAlive((short) keepAlive);
     }
  }
  