Added MQTT benchmarking utiliy based on FuseSource MQTT client

benchmarking/src/main/java/org/dna/mqtt/bechnmark/Main.java

@@ -0,0 +1,24 @@
+package org.dna.mqtt.bechnmark;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+/**
+ *
+ * Benchmark tool entry point.
+ * 
+ * You could set the number of producers and consumers
+ * 
+ * @author andrea
+ */
+public class Main {
+    private static final int PUBLISHER_POOL_SIZE = 2;
+    
+    public static void main(String[] args) {
+        ExecutorService pool = Executors.newFixedThreadPool(PUBLISHER_POOL_SIZE);
+        
+        pool.submit(new Producer("Client1"));
+        
+        pool.shutdown();
+    }
+}

benchmarking/src/main/java/org/dna/mqtt/bechnmark/Producer.java

@@ -0,0 +1,63 @@
+package org.dna.mqtt.bechnmark;
+
+import java.net.URISyntaxException;
+import java.util.logging.Level;
+import org.fusesource.mqtt.client.BlockingConnection;
+import org.fusesource.mqtt.client.MQTT;
+import org.fusesource.mqtt.client.QoS;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This class only publish MQTT messages to a define topic with a certain frequency.
+ * 
+ * 
+ * @author andrea
+ */
+public class Producer implements Runnable {
+    
+    private static final Logger LOG = LoggerFactory.getLogger(Producer.class);
+    
+    private String m_clientID;
+    
+    public Producer(String clientID) {
+        m_clientID = clientID;
+    }
+
+    public void run() {
+        MQTT mqtt = new MQTT();
+        try {
+//            mqtt.setHost("test.mosquitto.org", 1883);
+            mqtt.setHost("localhost", 1883);
+        } catch (URISyntaxException ex) {
+            LOG.error(null, ex);
+            return;
+        }
+        
+        mqtt.setClientId(m_clientID);
+        BlockingConnection connection = mqtt.blockingConnection();
+        try {
+            connection.connect();
+        } catch (Exception ex) {
+            LOG.error("Cant't CONNECT to the server", ex);
+            return;
+        }
+        
+        //TODO loop
+        try {
+            LOG.info("Publishing");
+            connection.publish("/topic", "Hello world MQTT!!".getBytes(), QoS.AT_MOST_ONCE, false);
+        } catch (Exception ex) {
+            LOG.error("Cant't PUSBLISH to the server", ex);
+            return;
+        }
+        try {
+            LOG.info("Disconneting");
+            connection.disconnect();
+            LOG.info("Disconnected");
+        } catch (Exception ex) {
+            LOG.error("Cant't DISCONNECT to the server", ex);
+        }
+    }
+    
+}