Java MqttClient.setTimeToWait方法代碼示例

import org.eclipse.paho.client.mqttv3.MqttClient; //導入方法依賴的package包/類
public void run() {
	try {
		// Connect to the MQTT Server
		MqttConnectOptions options = new MqttConnectOptions();
		options.setAutomaticReconnect(true);
		options.setCleanSession(true);
		options.setConnectionTimeout(30);
		options.setKeepAliveInterval(30);
		options.setUserName(username);
		options.setPassword(password.toCharArray());
		client = new MqttClient(serverUrl, clientId);
		client.setTimeToWait(5000);						// short timeout on failure to connect
		client.connect(options);
		client.setCallback(this);
		
		// Just listen to all DDATA messages on spAv1.0 topics and wait for inbound messages
		client.subscribe("spBv1.0/#", 0);
	} catch(Exception e) {
		e.printStackTrace();
	}
}
 

import org.eclipse.paho.client.mqttv3.MqttClient; //導入方法依賴的package包/類
public void run() {
	try {
		// Connect to the MQTT Server
		MqttConnectOptions options = new MqttConnectOptions();
		options.setAutomaticReconnect(true);
		options.setCleanSession(true);
		options.setConnectionTimeout(30);
		options.setKeepAliveInterval(30);
		options.setUserName(username);
		options.setPassword(password.toCharArray());
		client = new MqttClient(serverUrl, clientId);
		client.setTimeToWait(2000);	
		client.setCallback(this);
		client.connect(options);
		
		// Subscribe to control/command messages for both the edge of network node and the attached devices
		client.subscribe(NAMESPACE + "/" + groupId + "/+/" + edgeNode, 0);
		client.subscribe(NAMESPACE + "/" + groupId + "/+/" + edgeNode + "/*", 0);
		
		// Loop to receive input commands
		while (true) {
			System.out.print("\n> ");
			
			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
			String line = br.readLine();

			handleCommand(line);
		}
	} catch(Exception e) {
		e.printStackTrace();
	}
}
 

import org.eclipse.paho.client.mqttv3.MqttClient; //導入方法依賴的package包/類
public void run() {
	try {
		// Random generator and thread pool for outgoing published messages
		executor = Executors.newFixedThreadPool(1);
		
		// Build up DEATH payload - note DEATH payloads don't have a regular sequence number
		SparkplugBPayloadBuilder deathPayload = new SparkplugBPayloadBuilder().setTimestamp(new Date());
		deathPayload = addBdSeqNum(deathPayload);
		byte [] deathBytes = new SparkplugBPayloadEncoder().getBytes(deathPayload.createPayload());
		
		MqttConnectOptions options = new MqttConnectOptions();
		
		if (USING_REAL_TLS) {
			SocketFactory sf = SSLSocketFactory.getDefault();
			options.setSocketFactory(sf);
		}
		
		// Connect to the MQTT Server
		options.setAutomaticReconnect(true);
		options.setCleanSession(true);
		options.setConnectionTimeout(30);
		options.setKeepAliveInterval(30);
		options.setUserName(username);
		options.setPassword(password.toCharArray());
		options.setWill(NAMESPACE + "/" + groupId + "/NDEATH/" + edgeNode, deathBytes, 0, false);
		client = new MqttClient(serverUrl, clientId);
		client.setTimeToWait(2000);	
		client.setCallback(this);					// short timeout on failure to connect
		client.connect(options);
		
		// Subscribe to control/command messages for both the edge of network node and the attached devices
		client.subscribe(NAMESPACE + "/" + groupId + "/NCMD/" + edgeNode + "/#", 0);
		client.subscribe(NAMESPACE + "/" + groupId + "/DCMD/" + edgeNode + "/#", 0);	
		client.subscribe(NAMESPACE + "/#", 0);	
		
		// Loop forever publishing data every PUBLISH_PERIOD
		while (true) {
			Thread.sleep(PUBLISH_PERIOD);

			if (client.isConnected()) {
				synchronized(seqLock) {
					System.out.println("Connected - publishing new data");
					// Create the payload and add some metrics
					SparkplugBPayload payload = new SparkplugBPayload(
							new Date(), 
							newMetrics(false), 
							getSeqNum(),
							newUUID(), 
							null);
					
					client.publish(NAMESPACE + "/" + groupId + "/DDATA/" + edgeNode + "/" + deviceId, 
							new SparkplugBPayloadEncoder().getBytes(payload), 0, false);
				}
			} else {
				System.out.println("Not connected - not publishing data");
			}
		}
	} catch(Exception e) {
		e.printStackTrace();
	}
}
 

import org.eclipse.paho.client.mqttv3.MqttClient; //導入方法依賴的package包/類
public void run() {
	try {
		// Random generator and thread pool for outgoing published messages
		executor = Executors.newFixedThreadPool(1);

		// Build up DEATH payload - note DEATH payloads don't have a regular sequence number
		SparkplugBPayloadBuilder deathPayload = new SparkplugBPayloadBuilder().setTimestamp(new Date());
		deathPayload = addBdSeqNum(deathPayload);
		byte[] deathBytes = new SparkplugBPayloadEncoder().getBytes(deathPayload.createPayload());

		MqttConnectOptions options = new MqttConnectOptions();

		if (USING_REAL_TLS) {
			SocketFactory sf = SSLSocketFactory.getDefault();
			options.setSocketFactory(sf);
		}

		// Connect to the MQTT Server
		options.setAutomaticReconnect(true);
		options.setCleanSession(true);
		options.setConnectionTimeout(30);
		options.setKeepAliveInterval(30);
		options.setUserName(username);
		options.setPassword(password.toCharArray());
		options.setWill(NAMESPACE + "/" + groupId + "/NDEATH/" + edgeNode, deathBytes, 0, false);
		client = new MqttClient(serverUrl, clientId);
		client.setTimeToWait(2000);
		client.setCallback(this); // short timeout on failure to connect
		client.connect(options);

		// Subscribe to control/command messages for both the edge of network node and the attached devices
		client.subscribe(NAMESPACE + "/" + groupId + "/NCMD/" + edgeNode + "/#", 0);
		client.subscribe(NAMESPACE + "/" + groupId + "/DCMD/" + edgeNode + "/#", 0);

		// Loop forever publishing data every PUBLISH_PERIOD
		while (true) {
			Thread.sleep(PUBLISH_PERIOD);

			if (client.isConnected()) {
				synchronized (seqLock) {
					System.out.println("Connected - publishing new data");
					// Create the payload and add some metrics
					SparkplugBPayload payload = new SparkplugBPayload(new Date(), newComplexTemplateInstance(),
							getSeqNum(), newUUID(), null);

					client.publish(NAMESPACE + "/" + groupId + "/DDATA/" + edgeNode + "/" + deviceId,
							new SparkplugBPayloadEncoder().getBytes(payload), 0, false);
				}
			} else {
				System.out.println("Not connected - not publishing data");
			}
		}
	} catch (Exception e) {
		e.printStackTrace();
	}
}