/**
* Publish / send a message to an MQTT server
*
* @param topicName the name of the topic to publish to
* @param qos the quality of service to delivery the message at (0,1,2)
* @param payload the set of bytes to send to the MQTT server
* @throws MqttException
*/
public void publish(String topicName, int qos, byte[] payload, String configId)
throws MqttException {
if (!connected) {
LOG.info("Trying to re-connect");
if (!connect(SystemConfig.getMqttConfigProperties())) {
LOG.log(
Level.WARNING,
"Could not connect and publish {0} to topic {1}",
new Object[] {new String(payload), topicName});
return;
}
}
String instantiatedTopicName = topicName.replace("$clientid", clientId);
instantiatedTopicName = instantiatedTopicName.replace("$configid", configId);
String time = new Timestamp(System.currentTimeMillis()).toString();
LOG.log(
Level.INFO,
"Publishing at: {0} to topic \"{1}\" qos {2}",
new Object[] {time, instantiatedTopicName, qos});
// Create and configure a message
MqttMessage message = new MqttMessage(payload);
message.setQos(qos);
// Send the message to the server, control is not returned until
// it has been delivered to the server meeting the specified
// quality of service.
client.publish(instantiatedTopicName, message);
}
/**
* Publish / send a message to an MQTT server
*
* @param topicName the name of the topic to publish to
* @param qos the quality of service to delivery the message at (0,1,2)
* @param payload the set of bytes to send to the MQTT server
* @throws MqttException
*/
public void publish(String topicName, int qos, byte[] payload) throws MqttException {
// Connect to the MQTT server
// issue a non-blocking connect and then use the token to wait until the
// connect completes. An exception is thrown if connect fails.
log("Connecting to " + brokerUrl + " with client ID " + client.getClientId());
IMqttToken conToken = client.connect(conOpt, null, null);
conToken.waitForCompletion();
log("Connected");
String time = new Timestamp(System.currentTimeMillis()).toString();
log("Publishing at: " + time + " to topic \"" + topicName + "\" qos " + qos);
// Construct the message to send
MqttMessage message = new MqttMessage(payload);
message.setQos(qos);
// Send the message to the server, control is returned as soon
// as the MQTT client has accepted to deliver the message.
// Use the delivery token to wait until the message has been
// delivered
IMqttDeliveryToken pubToken = client.publish(topicName, message, null, null);
pubToken.waitForCompletion();
log("Published");
// Disconnect the client
// Issue the disconnect and then use a token to wait until
// the disconnect completes.
log("Disconnecting");
IMqttToken discToken = client.disconnect(null, null);
discToken.waitForCompletion();
log("Disconnected");
}
/**
* Publish data to the IBM Internet of Things Foundation.<br>
* This method allows QoS to be passed as an argument
*
* @param event Name of the dataset under which to publish the data
* @param data Object to be added to the payload as the dataset
* @param qos Quality of Service - should be 0, 1 or 2
* @return Whether the send was successful.
*/
public boolean publishEvent(String event, Object data, int qos) {
if (!isConnected()) {
return false;
}
final String METHOD = "publishEvent(2)";
JsonObject payload = new JsonObject();
String timestamp = ISO8601_DATE_FORMAT.format(new Date());
payload.addProperty("ts", timestamp);
JsonElement dataElement = gson.toJsonTree(data);
payload.add("d", dataElement);
String topic = "iot-2/evt/" + event + "/fmt/json";
LoggerUtility.fine(CLASS_NAME, METHOD, "Topic = " + topic);
LoggerUtility.fine(CLASS_NAME, METHOD, "Payload = " + payload.toString());
MqttMessage msg = new MqttMessage(payload.toString().getBytes(Charset.forName("UTF-8")));
msg.setQos(qos);
msg.setRetained(false);
try {
mqttAsyncClient.publish(topic, msg).waitForCompletion();
} catch (MqttPersistenceException e) {
e.printStackTrace();
return false;
} catch (MqttException e) {
e.printStackTrace();
return false;
}
return true;
}
private void doPublish(
String name,
Object val,
String src,
String dpt,
String textual,
long updateTime,
long lastChange) {
JsonObject jso = new JsonObject();
jso.add("ts", updateTime).add("lc", lastChange).add("knx_src_addr", src).add("knx_dpt", dpt);
if (textual != null) jso.add("knx_textual", textual);
if (val instanceof Integer) jso.add("val", ((Integer) val).intValue());
else if (val instanceof Number) jso.add("val", ((Number) val).doubleValue());
else jso.add("val", val.toString());
String txtmsg = jso.toString();
MqttMessage msg = new MqttMessage(jso.toString().getBytes(StandardCharsets.UTF_8));
msg.setQos(0);
msg.setRetained(true);
try {
String fullTopic = topicPrefix + "status/" + name;
mqttc.publish(fullTopic, msg);
L.finer("Published " + txtmsg + " to " + fullTopic);
} catch (MqttException e) {
L.log(Level.WARNING, "Error when publishing message " + txtmsg, e);
}
}
public void publishMQTT(String topic, byte[] data) {
MqttMessage message = new MqttMessage(data);
message.setQos(2);
try {
this.mqttClient.publish(topic, message);
} catch (MqttException e) {
getLogger().warn("Publish MQTT Topic", e);
}
}
public static void main(String[] args) {
// The quality of service for the sent message.
int qualityOfService = 1;
// Memory persistence for client message deliver. Store it in a file in case
// lose connections to the broker.
MqttClientPersistence persistence = new MqttDefaultFilePersistence();
try {
Properties credentials = new Properties();
credentials.load(new FileInputStream(new File("/Users/keith/mqtt.properties")));
MqttClient client =
new MqttClient(
"ssl://smartspaces.io:8883", "/mqtt/publisher/credentialed/ssl", persistence);
client.setCallback(
new MqttCallback() {
@Override
public void connectionLost(Throwable cause) {
System.out.println("Lost connection");
cause.printStackTrace();
}
@Override
public void deliveryComplete(IMqttDeliveryToken token) {
System.out.println("Got delivery token " + token.getResponse());
}
@Override
public void messageArrived(String topic, MqttMessage message) throws Exception {
// Not needed since not subscribing.
}
});
MqttConnectOptions options = new MqttConnectOptions();
options.setCleanSession(true);
options.setUserName(credentials.getProperty("mqtt.username"));
options.setPassword(credentials.getProperty("mqtt.password").toCharArray());
options.setSocketFactory(configureSSLSocketFactory(credentials));
System.out.println("Connecting to broker: " + client.getServerURI());
client.connect(options);
System.out.println("Connected");
byte[] content = "Hello, world!".getBytes();
MqttMessage message = new MqttMessage(content);
message.setQos(qualityOfService);
client.publish("/greeting", message);
System.out.println("Message published");
client.disconnect();
System.out.println("Disconnected");
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
String topic = "/group/1ffb66a0-304e-11e5-a2cb-0800200c9a66/send_data";
String contentStr = "Message from KC";
int qos = 2;
String broker = "tcp://isplanet.dyndns-office.com:1883";
String clientId = "JavaSample";
MemoryPersistence persistence = new MemoryPersistence();
Content content = new Content();
content.setDevID("80:C1:6E:F3:E7:6B");
content.setDevName("KC");
content.setGroupID("1ffb66a0-304e-11e5-a2cb-0800200c9a66");
content.setSendTimestamp(String.valueOf(System.currentTimeMillis()));
Shot shot = new Shot();
shot.setMessage("Test");
shot.setImageUrl("http://ab.unayung.cc/uploads/photo/file/000/000/030/LN07_005.jpg");
shot.setPosition(new GeoPoint(25.042299, 121.507695));
content.setShot(shot);
contentStr = JsonDataFactory.getJson(content);
// System.exit(0);
try {
MqttClient sampleClient = new MqttClient(broker, clientId, persistence);
MqttConnectOptions connOpts = new MqttConnectOptions();
connOpts.setCleanSession(true);
System.out.println("Connecting to broker: " + broker);
sampleClient.connect(connOpts);
System.out.println("Connected");
System.out.println("Publishing message: " + contentStr);
MqttMessage message = new MqttMessage(contentStr.getBytes());
message.setQos(qos);
sampleClient.publish(topic, message);
System.out.println("Message published");
sampleClient.disconnect();
System.out.println("Disconnected");
System.exit(0);
} catch (MqttException me) {
System.out.println("reason " + me.getReasonCode());
System.out.println("msg " + me.getMessage());
System.out.println("loc " + me.getLocalizedMessage());
System.out.println("cause " + me.getCause());
System.out.println("excep " + me);
me.printStackTrace();
}
}
@Override
public void onSuccess(IMqttToken asyncActionToken) {
Log.d(TAG, "onSuccess");
try {
MqttMessage message = new MqttMessage(new String(client.getClientId()).getBytes());
message.setQos(qos);
message.setRetained(true);
client.publish("/users", message);
client.subscribe("/users", qos);
} catch (MqttException e) {
e.printStackTrace();
}
}
public void sendMessage(String message) {
MqttMessage mqttMsg = new MqttMessage(message.getBytes());
mqttMsg.setQos(this.qos);
mqttMsg.setRetained(this.retained);
try {
log.info("Publishing message: " + mqttMsg + " to topic \"" + this.topic + "\"");
client.publish(this.topic, mqttMsg);
} catch (MqttPersistenceException e) {
log.error(e.getMessage());
} catch (MqttException e) {
log.error(e.getMessage());
}
}
@Override
public MqttMessage fromMessage(Message<?> message, Class<?> targetClass) {
byte[] payloadBytes = messageToMqttBytes(message);
MqttMessage mqttMessage = new MqttMessage(payloadBytes);
Object header = message.getHeaders().get(MqttHeaders.RETAINED);
Assert.isTrue(
header == null || header instanceof Boolean,
MqttHeaders.RETAINED + " header must be Boolean");
mqttMessage.setRetained(header == null ? this.defaultRetained : (Boolean) header);
header = message.getHeaders().get(MqttHeaders.QOS);
Assert.isTrue(
header == null || header instanceof Integer, MqttHeaders.QOS + " header must be Integer");
mqttMessage.setQos(header == null ? this.defaultQos : (Integer) header);
return mqttMessage;
}
private void publish(JsonObject jsonPubMsg) throws MqttException, UnsupportedEncodingException {
final String METHOD = "publish1";
String topic = jsonPubMsg.get("topic").getAsString();
int qos = jsonPubMsg.get("qos").getAsInt();
JsonObject payload = jsonPubMsg.getAsJsonObject("payload");
LoggerUtility.log(
Level.FINE,
CLASS_NAME,
METHOD,
": Topic(" + topic + ") qos=" + qos + " payload (" + payload.toString() + ")");
MqttMessage message = new MqttMessage();
message.setPayload(payload.toString().getBytes("UTF-8"));
message.setQos(qos);
publish(DeviceTopic.get(topic), message);
}
public void publish(int qos, String payload) {
try {
// Create and configure a message
MqttMessage message = new MqttMessage(payload.getBytes());
message.setQos(qos);
// Send the message to the server, control is not returned until
// it has been delivered to the server meeting the specified
// quality of service.
mqttClient.publish(topic, message);
} catch (MqttException e) {
log.error(
"Error occurred when publishing message for MQTT server : " + mqttClient.getServerURI());
handleException(e);
}
}
/**
* {@inheritDoc} VirtualFirealarm device-type specific implementation to publish data to the
* device. This method calls the {@link #publishToQueue(String, MqttMessage)} method of the
* "MQTTTransportHandler" class.
*/
@Override
public void publishDeviceData(String... publishData) throws TransportHandlerException {
if (publishData.length != 4) {
String errorMsg =
"Incorrect number of arguments received to SEND-MQTT Message. "
+ "Need to be [owner, deviceId, resource{BULB/TEMP}, state{ON/OFF or null}]";
log.error(errorMsg);
throw new TransportHandlerException(errorMsg);
}
String deviceOwner = publishData[0];
String deviceId = publishData[1];
String resource = publishData[2];
String state = publishData[3];
MqttMessage pushMessage = new MqttMessage();
String publishTopic = "wso2/" + VirtualFireAlarmConstants.DEVICE_TYPE + "/" + deviceId;
try {
PublicKey devicePublicKey = VirtualFireAlarmServiceUtils.getDevicePublicKey(deviceId);
PrivateKey serverPrivateKey = SecurityManager.getServerPrivateKey();
String actualMessage = resource + ":" + state;
String encryptedMsg =
VirtualFireAlarmServiceUtils.prepareSecurePayLoad(
actualMessage, devicePublicKey, serverPrivateKey);
pushMessage.setPayload(encryptedMsg.getBytes(StandardCharsets.UTF_8));
pushMessage.setQos(DEFAULT_MQTT_QUALITY_OF_SERVICE);
pushMessage.setRetained(false);
publishToQueue(publishTopic, pushMessage);
} catch (VirtualFireAlarmException e) {
String errorMsg =
"Preparing Secure payload failed for device - ["
+ deviceId
+ "] of owner - "
+ "["
+ deviceOwner
+ "].";
log.error(errorMsg);
throw new TransportHandlerException(errorMsg, e);
}
}
/**
* Turns the given list of LoggedMqttMessages into ReceivedMqttMessages.
*
* @param list List of logged messages to progress
* @param progress The progress updater to call with updated progress
* @param current Current progress
* @param max Maximum progress value
* @return List of MQTT message objects (ReceivedMqttMessage)
*/
public static List<BaseMqttMessage> processMessageLog(
final List<LoggedMqttMessage> list,
final ProgressUpdater progress,
final long current,
final long max) {
final List<BaseMqttMessage> mqttMessageList = new ArrayList<BaseMqttMessage>();
long item = 0;
// Process the messages
for (final LoggedMqttMessage loggedMessage : list) {
if (progress != null) {
item++;
if (item % 1000 == 0) {
progress.update(current + item, max);
}
}
final MqttMessage mqttMessage = new MqttMessage();
if (logger.isTraceEnabled()) {
logger.trace("Processing message with payload {}", loggedMessage.getValue());
}
if (Boolean.TRUE.equals(loggedMessage.isEncoded())) {
mqttMessage.setPayload(Base64.decodeBase64(loggedMessage.getValue()));
} else {
mqttMessage.setPayload(ConversionUtils.stringToArray(loggedMessage.getValue()));
}
mqttMessage.setQos(loggedMessage.getQos() == null ? 0 : loggedMessage.getQos());
mqttMessage.setRetained(
loggedMessage.isRetained() == null ? false : loggedMessage.isRetained());
mqttMessageList.add(
new BaseMqttMessage(
loggedMessage.getId(),
loggedMessage.getTopic(),
mqttMessage,
new Date(loggedMessage.getTimestamp())));
}
logger.info("Message log - processed {} MQTT messages", list.size());
return mqttMessageList;
}
@Override
public void ping() {
if (!isActive()) {
Log.d(TAG, "Can't ping because connection is not active");
return;
}
MqttMessage message = new MqttMessage(Constants.MQTT_KEEP_ALIVE_MESSAGE);
message.setQos(Constants.MQTT_KEEP_ALIVE_QOS);
try {
mqttClient.publish(String.format(keepAliveTopic, mqttClient.getClientId()), message);
Log.i(TAG, "Successful ping");
} catch (MqttException e) {
Log.wtf(
TAG,
"Exception during ping. Reason code:"
+ e.getReasonCode()
+ " Message: "
+ e.getMessage());
for (MqttPingerObserver observer : observers) {
observer.onFailedPing();
}
}
}
/**
* Publish / send a message to an MQTT server
*
* @param topicName the name of the topic to publish to
* @param qos the quality of service to delivery the message at (0,1,2)
* @param payload the set of bytes to send to the MQTT server
* @throws MqttException
*/
public void publish(String topicName, int qos, byte[] payload) throws MqttException {
// Connect to the MQTT server
log("Connecting to " + brokerUrl + " with client ID " + client.getClientId());
client.connect(conOpt);
log("Connected");
String time = new Timestamp(System.currentTimeMillis()).toString();
log("Publishing at: " + time + " to topic \"" + topicName + "\" qos " + qos);
// Create and configure a message
MqttMessage message = new MqttMessage(payload);
message.setQos(qos);
// Send the message to the server, control is not returned until
// it has been delivered to the server meeting the specified
// quality of service.
client.publish(topicName, message);
// Disconnect the client
client.disconnect();
log("Disconnected");
}
@Override
public void publish(String topic, String content, Integer qos, Boolean retained)
throws ProcessingException {
checkConnection();
try {
MqttMessage message = new MqttMessage(content.getBytes());
if (qos != null) {
message.setQos(qos);
}
if (retained != null) {
message.setRetained(retained);
}
m_mqttClient.publish(topic, message);
} catch (Exception e) {
throw new ProcessingException(TEXTS.get("publishError"), e);
}
s_logger.info("message " + topic + ":'" + content + "' successfully published");
}
/**
* Send the message and waits for the response from IBM IoT Foundation
*
* <p>
*
* <p>This method is used by the library to send following messages to IBM IoT Foundation
*
* <ul class="simple">
* <li>Manage
* <li>Unmanage
* <li>Location update
* <li>Diagnostic update/clear
* </ul>
*
* @param topic Topic where the message to be sent
* @param jsonPayload The message
* @param timeout How long to wait for the resonse
* @return response in Json format
* @throws MqttException
*/
public JsonObject sendAndWait(DeviceTopic topic, JsonObject jsonPayload, long timeout)
throws MqttException {
final String METHOD = "sendAndWait";
String uuid = UUID.randomUUID().toString();
jsonPayload.add("reqId", new JsonPrimitive(uuid));
LoggerUtility.fine(
CLASS_NAME,
METHOD,
"Topic (" + topic + ") payload (" + jsonPayload.toString() + ") reqId (" + uuid + ")");
if (responseSubscription == null) {
responseSubscription = ServerTopic.RESPONSE;
subscribe(responseSubscription, 1, this);
}
MqttMessage message = new MqttMessage();
try {
message.setPayload(jsonPayload.toString().getBytes("UTF-8"));
} catch (UnsupportedEncodingException e) {
LoggerUtility.log(
Level.SEVERE, CLASS_NAME, METHOD, "Error setting payload for topic: " + topic, e);
return null;
}
message.setQos(1);
requests.put(uuid, message);
publish(topic, message);
JsonObject jsonResponse = null;
while (jsonResponse == null) {
try {
jsonResponse = queue.poll(timeout, TimeUnit.MILLISECONDS);
if (jsonResponse == null) {
break;
}
if (jsonResponse.get("reqId").getAsString().equals(uuid)) {
LoggerUtility.fine(
CLASS_NAME, METHOD, "" + "This response is for me reqId:" + jsonResponse.toString());
break;
} else {
// This response is not for our request, put it back to the queue.
LoggerUtility.warn(
CLASS_NAME, METHOD, "This response is NOT for me reqId:" + jsonResponse.toString());
queue.add(jsonResponse);
jsonResponse = null;
}
} catch (InterruptedException e) {
break;
}
}
if (jsonResponse == null) {
LoggerUtility.warn(
CLASS_NAME, METHOD, "NO RESPONSE from IoTF for request: " + jsonPayload.toString());
LoggerUtility.warn(CLASS_NAME, METHOD, "Connected(" + isConnected() + ")");
}
return jsonResponse;
}
