Example Code (HU/TBM):
/**********************************************************************************************
* This example code is provided for illustrative purposes only and provided 'AS IS' without
* warranty of any kind.
*
* Copyright ©2014 Chrysler Group LLC. All Rights Reserved. All information contained herein is,
* and remains the property of Chrysler Group LLC and its suppliers, if any. The intellectual and
* technical concepts contained herein are proprietary to Chrysler Group LLC and its suppliers
* and may be covered by U.S. and Foreign Patents, patents in process, and are protected by trade
* secret or copyright law. Dissemination of this information or reproduction of this material is
* strictly forbidden unless prior written permission is obtained from Chrysler Group LLC.
*
* Chrysler, Jeep, Dodge, Ram, SRT, Mopar and the Pentastar logo are registered trademarks of
* Chrysler Group LLC. FIAT is a registered trademark of Fiat group Marketing & Corporate
* Communication S.p.A. used under license by Chrysler Group LLC.
*********************************************************************************************/
package com.fca.uconnect.global;
import com.amazonaws.services.iot.client.AWSIotException;
import com.amazonaws.services.iot.client.AWSIotMessage;
import com.amazonaws.services.iot.client.AWSIotMqttClient;
import com.amazonaws.services.iot.client.AWSIotQos;
import com.amazonaws.services.iot.client.AWSIotTopic;
import com.fca.uconnect.global.GlobalUconnectControl.Location;
import com.fca.uconnect.global.GlobalUconnectControl.UconnectAny;
import com.fca.uconnect.global.GlobalUconnectControl.UconnectMessage;
import com.fca.uconnect.global.GlobalUconnectExtVehicleFinder.VehicleLocationRequest;
import com.fca.uconnect.global.GlobalUconnectExtVehicleFinder.VehicleLocationResponse;
import com.fca.uconnect.global.GlobalUconnectExtVehicleFinder.VehicleLocationResponse.VehicleLocationResponseEnum;
import com.google.protobuf.ExtensionRegistry;
/**
* This example class demonstrates how to use the AWS IoT mqtt client to send/receive a Uconnect VehicleLocationResponse messages to the SDP and wait for a response message.
* This code is only for reference and is furnished without warranty.....
*
* @author FCA Global V2C API Team
*
*/
public class TBMExampleForVehicleFinder {
private String clientId; // The clientId is unique to the device and obtained from the client X.509 certificate CN.
private int messageId; // The messageId is a sequential number incremented and assigned to each message sent from the client.
private AWSIotMqttClient mqttClient; // The mqtt client object from the AWS IoT client library.
private AWSIotTopic iotTopic; // The Topic object to subscribe for inbound messages.
private ExtensionRegistry extRegistry; // Google protocol buffers extension registry instance.
private int correlationId = 0;// The correlationId is a sender messageId so that Sender can recognize the message once its received response.
/**
* Constructor - initialize protocol buffer extension registry for parsing incoming Uconnect Messages.
*/
public TBMExampleForVehicleFinder() {
extRegistry = ExtensionRegistry.newInstance();
extRegistry.add(GlobalUconnectExtVehicleFinder.vehicleLocationRequest);
}
/**
* This method generates a Protocol Buffer Uconnect Message given the required inputs for vehicleLocationResponse.
*
*/
public UconnectMessage getVehLocationRespMsg(VehicleLocationResponseEnum response,Location location) {
this.messageId++;
VehicleLocationResponse resp = VehicleLocationResponse.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setResponse(response)
.setVehicleLocation(location)
.build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setMessageId(messageId)
.setCorrelationId(correlationId)
.addMessages(UconnectAny.newBuilder().
setExtension(GlobalUconnectExtVehicleFinder.vehicleLocationResponse, resp))
.build();
return msg;
}
/**
* This method demonstrates connecting to the AWS IoT mqtt broker and publishing an VehicleFinder messages to the VFND topic.
*/
public void process() {
mqttClient = new AWSIotMqttClient("endpoint", clientId, "awsAccessKeyId", "awsSecretAccessKey");
try {
mqttClient.connect();
iotTopic = new AWSIotTopic(clientId+"/VFND/", AWSIotQos.QOS1) {
public void onMessage(AWSIotMessage msg) {
try{
UconnectMessage msgIn;
msgIn = UconnectMessage.parseFrom(msg.getPayload(),extRegistry);
correlationId=msgIn.getMessageId();
if (msgIn.getMessages(0).hasExtension(GlobalUconnectExtVehicleFinder.vehicleLocationRequest)) {
VehicleLocationRequest vehicleLocationRequest = msgIn.getMessages(0).getExtension(
GlobalUconnectExtVehicleFinder.vehicleLocationRequest);
correlationId = msgIn.getMessageId();
Location vehLocation = Location.newBuilder()
.setPositionLatitude(42.480201)
.setPositionLongitude(-83.671875F)
.build();
sendMessage(getVehLocationRespMsg(VehicleLocationResponseEnum.SUCCESS,vehLocation));
}
} catch( Exception ex) {
ex.printStackTrace();
System.out.println("Err processing message: "+ex+", try parsing VehicleFinder messages.");
}
}
};
mqttClient.subscribe(iotTopic);
} catch (AWSIotException ex) {
System.out.println("Caught AWS Exception "+ex);
ex.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
public void disconnect(){
try {
mqttClient.disconnect();
} catch (AWSIotException e) {
e.printStackTrace();
}
}
public void sendMessage(UconnectMessage msg) {
final byte[] msgOut = msg.toByteArray();
new Thread(new Runnable() {
@Override
public void run() {
try {
AWSIotMessage message = new
MessagePublisherListener("/VFND/"+clientId,AWSIotQos.QOS1,msgOut);
mqttClient.publish(message);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
}
}).start();
}
/**
* Example main to launch example.
*
* @param args
*/
public static void main(String[] args) {
TBMExampleForVehicleFinder example = new TBMExampleForVehicleFinder();
example.process();
}
}
Here's an example of how Service Connects to AWS IOT MQTT for VFND topics and process Vehicle Finder messages.
Example Code (SDP):
package com.fca.uconnect.global;
import java.util.ArrayList;
import java.util.List;
import com.amazonaws.services.iot.client.AWSIotException;
import com.amazonaws.services.iot.client.AWSIotMessage;
import com.amazonaws.services.iot.client.AWSIotMqttClient;
import com.amazonaws.services.iot.client.AWSIotQos;
import com.amazonaws.services.iot.client.AWSIotTopic;
import com.fca.uconnect.global.GlobalUconnectControl.UconnectAny;
import com.fca.uconnect.global.GlobalUconnectControl.UconnectMessage;
import com.fca.uconnect.global.GlobalUconnectExtVehicleFinder.VehicleLocationRequest;
import com.google.protobuf.ExtensionRegistry;
public class SDPExampleForVehicleFinder {
private String clientId; // The clientId is unique to the device and obtained from the client X.509 certificate CN.
private int messageId; // The messageId is a sequential number incremented and assigned to each message sent from the client.
private AWSIotMqttClient mqttClient; // The mqtt client object from the AWS IoT client library.
private AWSIotTopic iotTopic; // The Topic object to subscribe for inbound messages.
private ExtensionRegistry extRegistry; // Google protocol buffers extension registry instance.
private List messages;
public SDPExampleForVehicleFinder() {
extRegistry = ExtensionRegistry.newInstance();
extRegistry.add(GlobalUconnectExtVehicleFinder.vehicleLocationResponse);
}
public UconnectMessage getVehFinderReqMsg() {
messageId++;
VehicleLocationRequest vreq = VehicleLocationRequest.newBuilder()
.build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setMessageId(messageId)
.addMessages(UconnectAny.newBuilder().
setExtension(GlobalUconnectExtVehicleFinder.vehicleLocationRequest,vreq))
.build();
return msg;
}
public List process() {
mqttClient = new AWSIotMqttClient("endpoint", clientId, "awsAccessKeyId", "awsSecretAccessKey");
try {
mqttClient.connect();
iotTopic = new AWSIotTopic("/VFND/#",AWSIotQos.QOS1){
public void onMessage(AWSIotMessage msg) {
try {
UconnectMessage msgIn = UconnectMessage.parseFrom(msg.getPayload(),extRegistry);
int msgId = msgIn.getMessageId();
if(msgIn.getMessages(0).hasExtension(
GlobalUconnectExtVehicleFinder.vehicleLocationResponse)){
//Receive Vehicle Information from TBM
}
} catch( Exception ex) {
ex.printStackTrace();
System.out.println("Err processing message: "+ex+", try parsing Vehicle Finder.");
}
}
};
sendMessage(getVehFinderReqMsg());
mqttClient.subscribe(iotTopic);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
return messages;
}
public void disconnect(){
try {
mqttClient.disconnect();
} catch (AWSIotException e) {
e.printStackTrace();
}
}
public void sendMessage(UconnectMessage msg) {
final byte[] msgOut = msg.toByteArray();
new Thread(new Runnable() {
@Override
public void run() {
try {
AWSIotMessage message = new
MessagePublisherListener(clientId+"/VFND/",AWSIotQos.QOS1,msgOut);
mqttClient.publish(message);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);//use logging instead
e.printStackTrace();
}
}
}).start();
}
public static void main(String[] args) {
SDPExampleForVehicleFinder m = new SDPExampleForVehicleFinder();
m.process();
}
}
The example code demonstrates how to connect with AWS IoT for publishing and subscribing to the VFND topic.
Download Client Example Code here
Download Service Example Code here