Added publisher and subscriber using mqtt-client lib from FuseSource

tools_scripts/fuse_publisher.groovy

@@ -0,0 +1,27 @@
+@Grab(group='org.fusesource.mqtt-client', module='mqtt-client', version='1.5')
+
+import java.net.URISyntaxException
+
+import org.fusesource.mqtt.client.BlockingConnection
+import org.fusesource.mqtt.client.MQTT
+import org.fusesource.mqtt.client.QoS
+
+String host = args[0]
+
+MQTT mqtt = new MQTT()
+//mqtt.setHost("test.mosquitto.org", 1883);
+mqtt.setHost(host, 1883)
+BlockingConnection connection = mqtt.blockingConnection()
+connection.connect()
+
+print "publishing.."
+long startTime = System.currentTimeMillis()
+(1..100000).each {
+    connection.publish("/topic", 'Hello world!!'.bytes, QoS.AT_MOST_ONCE, false)
+}
+connection.publish('/exit', 'Exit'.bytes, QoS.AT_MOST_ONCE, false)
+long stopTime = System.currentTimeMillis()
+long spentTime = stopTime -startTime
+println "published in ${spentTime} ms"
+connection.disconnect()
+println "disconnected"

tools_scripts/fuse_subscriber.groovy

@@ -0,0 +1,51 @@
+@Grab(group='org.fusesource.mqtt-client', module='mqtt-client', version='1.5')
+
+import java.net.URISyntaxException
+
+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 java.util.concurrent.CountDownLatch
+import java.util.concurrent.TimeUnit
+
+String host = args[0]
+MQTT mqtt = new MQTT()
+//mqtt.setHost("test.mosquitto.org", 1883);
+mqtt.setHost(host, 1883)
+mqtt.setCleanSession(true)
+mqtt.setHost(host, 1883)
+
+mqtt.setClientId("SubscriberClient")
+BlockingConnection connection = mqtt.blockingConnection()
+connection.connect()
+println "Connected to ${host}"
+
+Topic[] topics = [new Topic("/topic", QoS.AT_MOST_ONCE), new Topic("/exit", QoS.AT_MOST_ONCE)]
+byte[] qoses = connection.subscribe(topics)
+println "subscribed to /topic qos: ${qoses[0]}"
+println "subscribed to /exit qos: ${qoses[1]}"
+
+int numReceived = 0
+long startTime = System.currentTimeMillis()
+boolean exit = false
+
+while(!exit) {
+    Message message = connection.receive()
+    if (message.topic == "/exit") {
+        exit = true
+    } else {
+        numReceived++
+//        if ((numReceived % 10000) == 0) {
+//            print '.'
+//        }
+    }
+    message.ack()
+}
+connection.disconnect()
+long stopTime = System.currentTimeMillis()
+long spentTime = stopTime - startTime
+println "/exit received"
+println "subscriber disconnected, received ${numReceived} messages in ${spentTime} ms"
+