/**********************************************************************************************
* 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.DRM.AppDrm;
import com.fca.uconnect.global.GlobalUconnectControl.DRM.AppDrm.DRMContent;
import com.fca.uconnect.global.GlobalUconnectControl.DRM.AppDrm.DRMRegistration;
import com.fca.uconnect.global.GlobalUconnectControl.DRM.AppDrm.DRMRegistration.OperationEnum;
import com.fca.uconnect.global.GlobalUconnectControl.DRM.AppDrm.DRMRegistration.RegistrationStatusEnum;
import com.fca.uconnect.global.GlobalUconnectControl.DRMService;
import com.fca.uconnect.global.GlobalUconnectControl.DRM;
import com.fca.uconnect.global.GlobalUconnectControl.UconnectAny;
import com.fca.uconnect.global.GlobalUconnectControl.UconnectMessage;
import com.fca.uconnect.global.GlobalUconnectExtAOTA.DiscrepancyCheck;
import com.fca.uconnect.global.GlobalUconnectExtAOTA.UpdateStatusNotification;
import com.fca.uconnect.global.GlobalUconnectExtAOTA.UpdateStatusNotification.StatusEnum;
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 AOTA 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 TBMExampleForAOTA {
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 boolean receivedResponse = false; // flag to wait for the response as part of this example.
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 TBMExampleForAOTA() {
extRegistry = ExtensionRegistry.newInstance();
extRegistry.add(GlobalUconnectExtAOTA.applicationUpdateNotification);
extRegistry.add(GlobalUconnectExtAOTA.initiateDiscrepancyCheck);
}
public void disconnect(){
try {
mqttClient.disconnect();
} catch (AWSIotException e) {
e.printStackTrace();
}
}
/**
* This method generates a Protocol Buffer Uconnect Message given the required inputs for AOTA Response.
*
* @return
*/
public UconnectMessage getAOTARespMsg(StatusEnum repsonse){
messageId++;
UpdateStatusNotification respMsg = UpdateStatusNotification.newBuilder()
.setStatus(repsonse)
.build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setMessageId(messageId)
.setCorrelationId(correlationId)
.addMessages(UconnectAny.newBuilder().
setExtension(GlobalUconnectExtAOTA.updateStatusNotification, respMsg))
.build();
return msg;
}
public UconnectMessage getDescCheckMsg(){
messageId++;
DRMRegistration regiMsg = DRMRegistration.newBuilder()
.setOperation(OperationEnum.RESET)
.setRegistrationStatus(RegistrationStatusEnum.BASIC_STAGE)
.build();
//Only few fields added in this example
DRMService drmService = DRMService.newBuilder()
.setAppIdentifier("APPIDENTIFIER")
.setEmailId("EMAILID")
.setFileName("FILENAME")
.setInstallerType("INSTALLER TYPE")
.build();
DRMContent drmContent = DRMContent.newBuilder()
.setDrmService(0, drmService)
.setApplicationType("APPTYPE")
.setMsisdn("MSISDN")
.build();
AppDrm appDrm = AppDrm.newBuilder()
.setDrmRegistration(regiMsg)
.setAmsDRM(drmContent)
.build();
DRM drm = DRM.newBuilder()
.setAppDrm(appDrm)
.build();
DiscrepancyCheck descCheckMsg = DiscrepancyCheck.newBuilder()
.setDrm(drm)
.build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setMessageId(messageId)
.setCorrelationId(correlationId)
.addMessages(UconnectAny.newBuilder().
setExtension(GlobalUconnectExtAOTA.discrepancyCheck, descCheckMsg))
.build();
return msg;
}
/**
* This method demonstrates connecting to the AWS IoT mqtt broker and publishing an AOTA message to the AOTA topic.
*/
public void process() {
mqttClient = new AWSIotMqttClient("endpoint", clientId, "awsAccessKeyId", "awsSecretAccessKey");
try {
mqttClient.connect();
iotTopic = new AWSIotTopic(clientId+"/AOTA/", AWSIotQos.QOS1) {
public void onMessage(AWSIotMessage msg) {
UconnectMessage msgIn = null;
try {
msgIn = UconnectMessage.parseFrom(msg.getPayload(),extRegistry);
} catch (InvalidProtocolBufferException e) {
e.printStackTrace();
}
if(msgIn.getMessages(0).hasExtension(GlobalUconnectExtAOTA.initiateDiscrepancyCheck)){
//receive Initiate and send DRM to SDP
correlationId=msgIn.getMessageId();
sendMessage(getDescCheckMsg());
}else if ((msgIn.getMessages(0).hasExtension(GlobalUconnectExtAOTA.applicationUpdateNotification))){
correlationId=msgIn.getMessageId();
sendMessage(getAOTARespMsg(StatusEnum.SUCCESS));
}
}
};
mqttClient.subscribe(iotTopic);
} catch (AWSIotException ex) {
System.out.println("Caught AWS Exception "+ex);
ex.printStackTrace();
}
}
/**
* This method publishes the message to AOTA topic
*/
public void sendMessage(UconnectMessage msg) {
final byte[] msgOut = msg.toByteArray();
new Thread(new Runnable() {
@Override
public void run() {
try {
mqttClient.publish("/AOTA/"+clientId, AWSIotQos.QOS1, msgOut);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
}
}).start();
}
/**
* Example main to launch example.
*
*/
public static void main(String[] args) {
TBMExampleForAOTA example = new TBMExampleForAOTA();
example.process();
}
}
Here's an example of how SDP Connects to AWS IOT MQTT for AOTA topics.
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.GlobalUconnectExtAOTA.ApplicationUpdateNotification;
import com.fca.uconnect.global.GlobalUconnectExtAOTA.InitiateDiscrepancyCheck;
import com.google.protobuf.ExtensionRegistry;
public class SDPExampleForAOTA {
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.
public SDPExampleForAOTA() {
extRegistry = ExtensionRegistry.newInstance();
extRegistry.add(GlobalUconnectExtAOTA.discrepancyCheck);
extRegistry.add(GlobalUconnectExtAOTA.updateStatusNotification);
}
//Disconnects MQTT
public void disconnect(){
try {
mqttClient.disconnect();
} catch (AWSIotException e) {
e.printStackTrace();
}
}
public UconnectMessage getInitiateDescMsg(){
messageId++;
InitiateDiscrepancyCheck descCheckmsg = InitiateDiscrepancyCheck.newBuilder()
.build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setMessageId(messageId)
.addMessages(UconnectAny.newBuilder().
setExtension(GlobalUconnectExtAOTA.initiateDiscrepancyCheck, descCheckmsg))
.build();
return msg;
}
public UconnectMessage getAppUpdateNotifyMsg(String appId,String description,long expireTime,
int size,String version,String checkSum,String url) {
messageId++;
ApplicationUpdateNotification updateNotifyMsg = ApplicationUpdateNotification.newBuilder()
.setAppId(appId)
.setDescription(description)
.setExpireDate(expireTime)
.setPackageSize(size)
.setChecksum(checkSum)
.setVersion(version)
.setUrl(url)
.build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setMessageId(messageId)
.addMessages(UconnectAny.newBuilder().
setExtension(GlobalUconnectExtAOTA.applicationUpdateNotification, updateNotifyMsg))
.build();
return msg;
}
public void process() {
mqttClient = new AWSIotMqttClient("endpoint", clientId, "awsAccessKeyId", "awsSecretAccessKey");
try {
mqttClient.connect();
iotTopic = new AWSIotTopic("/AOTA/#",AWSIotQos.QOS1){
public void onMessage(AWSIotMessage msg) {
try {
UconnectMessage msgIn = UconnectMessage.parseFrom(msg.getPayload(),extRegistry);
if(msgIn.getMessages(0).hasExtension(GlobalUconnectExtAOTA.discrepancyCheck)){
//Receive Discrepancy Check Message
//send app update
long expireTime = System.currentTimeMillis()+1000000;
sendMessage(getAppUpdateNotifyMsg("APPID","DESCRPTION",expireTime,32,"VERSION","CHECKSUM","URL"));
}
} catch( Exception ex) {
ex.printStackTrace();
System.out.println("Err processing message: "+ex+", try parsing AOTA.");
}
}
};
mqttClient.subscribe(iotTopic);
sendMessage(getInitiateDescMsg());
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
}
public void sendMessage(UconnectMessage msg) {
final byte[] msgOut = msg.toByteArray();
new Thread(new Runnable() {
@Override
public void run() {
try {
mqttClient.publish(clientId+"/AOTA/", AWSIotQos.QOS1, msgOut);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
}
}).start();
}
public static void main(String[] args) {
SDPExampleForAOTA m = new SDPExampleForAOTA();
m.process();
}
}
The example code demonstrates how to connect with AWS IoT for publishing and subscribing to the AOTA topic.
Download Client Example Code here
Download Service Example Code here