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);
}
}
/**
* 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;
}
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 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();
}
}
@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;
}
/**
* {@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 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");
}
