Client 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.GlobalUconnectExtECall.ECallDataUpload;
import com.fca.uconnect.global.GlobalUconnectExtECall.ECallDataUpload.AirBagStatus;
import com.fca.uconnect.global.GlobalUconnectExtECall.ECallDataUpload.EngineStatusEnum;
import com.fca.uconnect.global.GlobalUconnectExtECall.ECallDataUpload.TirePressure;
import com.fca.uconnect.global.GlobalUconnectExtECall.ECallStatusUpdate;
import com.fca.uconnect.global.GlobalUconnectExtECall.ECallStatusUpdate.ECallStatusEnum;
import com.google.protobuf.ByteString;
import com.google.protobuf.ExtensionRegistry;
import com.google.protobuf.InvalidProtocolBufferException;
/**
* This example class demonstrates how to use the AWS IoT mqtt client to send a Uconnect Ecall message 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 TBMExampleForECall {
private String clientId; // The clientId is unique to the device and obtained from the client X.509 certificate CN.
private ByteString sessionId; // The sessionId is assigned by the SDP to maintain a session independent of connection protocols.
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.
/**
* Constructor - initialize protocol buffer extension registry for parsing incoming Uconnect Messages.
*/
public TBMExampleForECall() {
extRegistry = ExtensionRegistry.newInstance();
extRegistry.add(GlobalUconnectExtECall.ecallDataUpload);
}
/**
* This method generates a Protocol Buffer Uconnect Message given the required inputs for ECALLDATAUPLOAD.
*
* @param vehicleId
* @param numberOfPassengers
* @param vehicleSpeed
* @param tirePressure
* @param isPositionTrusted
* @param carLocation
* @param airBagStatus
* @return
*/
public UconnectMessage getECallDataUploadReqMsg(String vehicleId,int numberOfPassengers,float vehicleSpeed,
TirePressure tirePressure,boolean isPositionTrusted,Location carLocation,AirBagStatus airBagStatus){
this.messageId++;
sessionId = ByteString.copyFrom(new byte[18]);
ECallDataUpload cardata = ECallDataUpload.newBuilder()
.setVehicleId(vehicleId)
.setNumberOfPassengers(numberOfPassengers)
.setVehicleSpeed(vehicleSpeed)
.setTimeStamp(System.currentTimeMillis())
.setTirePressure(tirePressure)
.setEngineStatusEnum(EngineStatusEnum.STOP)
.setIsPositionTrusted(isPositionTrusted)
.setVehicleLocation(carLocation)
.setAirBagStatus(airBagStatus)
.build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setSessionId(sessionId)
.setMessageId(messageId)
.addMessages(UconnectAny.newBuilder().
setExtension(GlobalUconnectExtECall.ecallDataUpload, cardata))
.build();
return msg;
}
public UconnectMessage getECallStatusUpdateMsg(){
ECallStatusUpdate ecallStatusUpdate = ECallStatusUpdate.newBuilder().
setEcallStatusEnum(ECallStatusEnum.DIAL).build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setSessionId(sessionId)
.setMessageId(messageId)
.addMessages(UconnectAny.newBuilder().
setExtension(GlobalUconnectExtECall.ecallStatusUpdate, ecallStatusUpdate))
.build();
return msg;
}
/**
* This method demonstrates connecting to the AWS IoT mqtt broker and publishing an ECALL message to the ECAL topic.
*/
public void process() {
mqttClient = new AWSIotMqttClient("endpoint", clientId, "awsAccessKeyId", "awsSecretAccessKey");
try {
mqttClient.connect();
iotTopic = new AWSIotTopic(clientId+"/ECAL/", AWSIotQos.QOS1) {
public void onMessage(AWSIotMessage msg) {
UconnectMessage msgIn = null;
try {
msgIn = UconnectMessage.parseFrom(msg.getPayload(),extRegistry);
} catch (InvalidProtocolBufferException e) {
}
}
};
mqttClient.subscribe(iotTopic);
AirBagStatus airBagStatus = AirBagStatus.newBuilder()
.setIsDriver(false)
.setIsDriverKnee(false)
.setIsLeftSeat(false)
.setIsRightSeat(false)
.setIsPassenger(false)
.setIsPassengerKnee(false)
.setIsLeftSideCurtain(false)
.build();
Location vehicleLocation = Location.newBuilder()
.setPositionLongitude(43.9999f)
.setPositionLatitude(-84.54635343f)
.build();
TirePressure tirePressureMsg = TirePressure.newBuilder()
.setFlTirePressure(35)
.setFrTirePressure(34)
.setRlTirePressure(36)
.setRrTirePressure(35)
.build();
UconnectMessage msg = getECallDataUploadReqMsg("1234AXFGFGHGH4566",1,75,tirePressureMsg,true,vehicleLocation,airBagStatus);
sendMessage(msg);
Thread.sleep(5000);
UconnectMessage eCallMsg = getECallStatusUpdateMsg();
sendMessage(eCallMsg);
} catch (AWSIotException ex) {
System.out.println("Caught AWS Exception "+ex);
ex.printStackTrace();
} catch (InterruptedException e) {
}
}
/**
* This method publishes the message to ECAL topic
*/
public void sendMessage(UconnectMessage msg) {
final byte[] msgOut = msg.toByteArray();
new Thread(new Runnable() {
@Override
public void run() {
try {
AWSIotMessage message = new
MessagePublisherListener("/ECAL/"+clientId,AWSIotQos.QOS1,msgOut);
mqttClient.publish(message);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
}
}).start();
}
/**
* Example main to launch example.
*
*/
public static void main(String[] args) {
TBMExampleForECall example = new TBMExampleForECall();
example.process();
}
}
Here's an example of how Service Connects to AWS IOT MQTT for Activation topics and process ECALL Request .
Service Example Code (SDP):
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.UconnectAny;
import com.fca.uconnect.global.GlobalUconnectControl.UconnectMessage;
import com.fca.uconnect.global.GlobalUconnectExtECall.ECallCarDataRequest;
import com.fca.uconnect.global.GlobalUconnectExtECall.ECallStatusUpdate.ECallStatusEnum;
import com.google.protobuf.ByteString;
import com.google.protobuf.ExtensionRegistry;
public class SDPExampleForECall {
private String clientId; // The clientId is unique to the device and obtained from the client X.509 certificate CN.
private ByteString sessionId; // The sessionId is assigned by the SDP to maintain a session independent of connection protocols.
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.
private Semaphore semaphore;//The semaphore object is used to wait for a response.
public SDPExampleForECall() {
extRegistry = ExtensionRegistry.newInstance();
extRegistry.add(GlobalUconnectExtECall.ecallDataUpload);
extRegistry.add(GlobalUconnectExtECall.ecallStatusUpdate);
extRegistry.add(GlobalUconnectExtECall.ecallCarDataResponse);
this.semaphore = new Semaphore();
}
public static void main(String[] args) {
SDPExampleForECall m = new SDPExampleForECall();
m.process();
}
public UconnectMessage getECallCarDataRequestMsg() {
messageId++;
ECallCarDataRequest carDataReq = ECallCarDataRequest.newBuilder()
.build();
sessionId = ByteString.copyFrom(new byte[18]);
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setSessionId(sessionId)
.setMessageId(messageId)
.setCorrelationId(correlationId)
.addMessages(UconnectAny.newBuilder().
setExtension(GlobalUconnectExtECall.ecallCarDataRequest, carDataReq))
.build();
return msg;
}
public void process() {
mqttClient = new AWSIotMqttClient("endpoint", clientId, "awsAccessKeyId", "awsSecretAccessKey");
try {
mqttClient.connect();
iotTopic = new AWSIotTopic("/ECAL/#",AWSIotQos.QOS1){
public void onMessage(AWSIotMessage msg) {
try {
UconnectMessage msgIn = UconnectMessage.parseFrom(msg.getPayload(),extRegistry);
if(msgIn.getMessages(0).hasExtension(GlobalUconnectExtECall.ecallDataUpload)){
//receive Vehicle Data
GlobalUconnectExtECall.ECallDataUpload ecallDataUploadMsg = msgIn.getMessages(0).getExtension(GlobalUconnectExtECall.ecallDataUpload);
}else{
//Wait for Call
GlobalUconnectExtECall.ECallStatusUpdate ecallStatusUpdateMsg = msgIn.getMessages(0).getExtension(GlobalUconnectExtECall.ecallStatusUpdate);
if(!ecallStatusUpdateMsg.getEcallStatusEnum().equals(ECallStatusEnum.CANCEL)){//User did not cancel call
//if needed query for Vehicle data continuously
int counter = 0;
while(counter<5){
sendMessage(getECallCarDataRequestMsg());
try {
Thread.sleep(1000);//wait and Request vehicle data
} catch (InterruptedException e) {
}
counter++;
}
}
semaphore.unlock();// Releasing the lock
}
} catch( Exception ex) {
ex.printStackTrace();
System.out.println("Err processing message: "+ex+", try parsing ECALL.");
}
}
};
mqttClient.subscribe(iotTopic);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
try {
this.semaphore.lock();
} catch (InterruptedException e) {
}
}
public void sendMessage(UconnectMessage msg) {
final byte[] msgOut = msg.toByteArray();
new Thread(new Runnable() {
@Override
public void run() {
try {
AWSIotMessage message = new
MessagePublisherListener(clientId+"/ECAL/",AWSIotQos.QOS1,msgOut);
mqttClient.publish(message);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
}
}).start();
}
}
The example code demonstrates how to connect with AWS IoT for publishing and subscribing to the ECall topic.
Download Client Example Code here
Download Service Example Code here