Added mqtt pub/sub synch(Paho lib) Future based and Callback/continuation based (Fuse lib)

tools_scripts/publisher_client.groovy

@@ -5,19 +5,33 @@ import org.eclipse.paho.client.mqttv3.MqttClient
 import org.eclipse.paho.client.mqttv3.MqttMessage
 import org.eclipse.paho.client.mqttv3.MqttException
 import org.eclipse.paho.client.mqttv3.persist.MqttDefaultFilePersistence
+import org.eclipse.paho.client.mqttv3.MqttConnectOptions
+
+if (args.size() < 2) {
+    println "Usage publisher <host> <num messages to sent>"
+    return
+}
 
 String host = args[0]
+int numToSend = args[1] as int
 
 String tmpDir = System.getProperty("java.io.tmpdir")
 MqttDefaultFilePersistence dataStore = new MqttDefaultFilePersistence(tmpDir)
 
 MqttClient client = new MqttClient("tcp://${host}:1883", "PublisherClient", dataStore)
-client.connect()
+//Only for Apollo ---
+//MqttConnectOptions connOptions = new MqttConnectOptions()
+//connOptions.userName ='admin'
+//connOptions.password = 'password' as char[]
+//Only for Apollo ---
+//client.connect(connOptions)
+client.connect(connOptions)
 MqttMessage message = new MqttMessage('Hello world!!'.bytes)
 message.setQos(0)
-print "publishing.."
+print "publishing..${numToSend} messages, "
 long startTime = System.currentTimeMillis()
-(1..1000000).each {
+//(1..1000000).each {
+(1..numToSend).each {
     client.publish('topic', 'Hello world!!'.bytes, 0, false)
 }
 client.publish('/exit', 'Exit'.bytes, 0, false)