Client Example Code (HU/TBM):
package com.fca.uconnect.global;
import java.util.UUID;
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.GlobalUconnectExtRemoteOp.RemoteDoorRequest.CommandEnum;
import com.fca.uconnect.global.GlobalUconnectExtRemoteOp.RemoteOperationRequest.ActionEnum;
import com.fca.uconnect.global.GlobalUconnectExtRemoteOp.RemoteOperationResponse;
import com.fca.uconnect.global.GlobalUconnectExtRemoteOp.RemoteOperationStatus;
import com.fca.uconnect.global.GlobalUconnectExtRemoteOp.RemoteOperationStatus.StatusEnum;
import com.google.protobuf.ByteString;
import com.google.protobuf.ExtensionRegistry;
/**
* This example class demonstrates how to use the AWS IoT mqtt client to send a Uconnect RemoteOperations message to the Client 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 TBMExampleForRemoteOp {
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 Service.
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 TBMExampleForRemoteOp() {
extRegistry = ExtensionRegistry.newInstance();
extRegistry.add(GlobalUconnectExtRemoteOp.remoteOperationRequest);
extRegistry.add(GlobalUconnectExtRemoteOp.remoteOperationSubscribeResponse);
this.semaphore = new Semaphore();
}
/**
* This method demonstrates connecting to the AWS IoT mqtt broker and publishing an Login message to the RO topic.
*/
public void process() {
mqttClient = new AWSIotMqttClient("endpoint", clientId, "awsAccessKeyId", "awsSecretAccessKey");
try {
mqttClient.connect();
iotTopic = new AWSIotTopic(clientId+"/RO/",AWSIotQos.QOS1){
public void onMessage(AWSIotMessage msg) {
try {
UconnectMessage msgIn = UconnectMessage.parseFrom(msg.getPayload(),extRegistry);
if (msgIn.getMessages(0).hasExtension(GlobalUconnectExtRemoteOp.remoteOperationRequest)) {
boolean validRemoteOperation = false;
GlobalUconnectExtRemoteOp.RemoteOperationRequest ro = msgIn.getMessages(0).getExtension(GlobalUconnectExtRemoteOp.remoteOperationRequest);
if (ro.hasRemoteDoorRequest()) {
if (ro.getRemoteDoorRequest().getCommand() == CommandEnum.UNLOCK_DRIVER) {
correlationId = msgIn.getMessageId();
validRemoteOperation = true;
semaphore.unlock();
sendMessage(getRemoteOpRespMsg(correlationId,GlobalUconnectExtRemoteOp.RemoteOperationResponse.ResponseEnum.SUCCESS));
//Publish Remote operation Status if User subscribing
if(ro.getAction().equals(ActionEnum.SUBSCRIBE)){
GlobalUconnectExtRemoteOp.RemoteOperationStatus.StatusEnum statusEnum=GlobalUconnectExtRemoteOp.RemoteOperationStatus.StatusEnum.REQUESTED;
UUID serviceId =UUID.randomUUID();
for(int i=0;i<4;i++){
Thread.sleep(1000);//wait and send remote operation status
if(i==1)
statusEnum = GlobalUconnectExtRemoteOp.RemoteOperationStatus.StatusEnum.DELIVERED;
else if (i==2)
statusEnum = GlobalUconnectExtRemoteOp.RemoteOperationStatus.StatusEnum.IN_PROGRESS;
else if (i==3)
statusEnum = GlobalUconnectExtRemoteOp.RemoteOperationStatus.StatusEnum.COMPLETE;
sendMessage(getRemoteOpPubMsg(correlationId,serviceId,statusEnum));
}
}
}else{
sendMessage(getRemoteOpRespMsg(correlationId,GlobalUconnectExtRemoteOp.RemoteOperationResponse.ResponseEnum.NOT_AUTHORIZED));
}
}
}
} catch( Exception ex) {
ex.printStackTrace();
System.out.println("Err processing message: "+ex+", try parsing Provisioning.");
}
}
};
mqttClient.subscribe(iotTopic);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
try {
semaphore.lock();
} catch (InterruptedException e) {
}
}
public UconnectMessage getRemoteOpPubMsg(int correlationId, UUID serviceRequestId, StatusEnum status) {
messageId++;
RemoteOperationStatus ros = RemoteOperationStatus.newBuilder()
.setStatus(status)
.build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setMessageId(messageId)
.addMessages(UconnectAny.newBuilder().setExtension(GlobalUconnectExtRemoteOp.remoteOperationStatus, ros))
.build();
return msg;
}
public UconnectMessage getRemoteOpRespMsg(int correlationId, GlobalUconnectExtRemoteOp.RemoteOperationResponse.ResponseEnum response) {
messageId++;
RemoteOperationResponse ro = RemoteOperationResponse.newBuilder()
.setResponse(response)
.build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setSessionId(sessionId)
.setMessageId(messageId)
.addMessages(UconnectAny.newBuilder().setExtension(GlobalUconnectExtRemoteOp.remoteOperationResponse, ro))
.build();
return msg;
}
public void sendMessage(UconnectMessage msg) {
final byte[] msgOut = msg.toByteArray();
new Thread(new Runnable() {
@Override
public void run() {
try {
AWSIotMessage message = new
MessagePublisherListener("/RO/"+clientId,AWSIotQos.QOS1,msgOut);
mqttClient.publish(message);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
}
}).start();
}
public static void main(String[] args) {
TBMExampleForRemoteOp service = new TBMExampleForRemoteOp();
service.process();
}
}
Service Example Code (SDP):
package com.fca.uconnect.global;
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.GlobalUconnectExtRemoteOp.RemoteDoorRequest;
import com.fca.uconnect.global.GlobalUconnectExtRemoteOp.RemoteDoorRequest.CommandEnum;
import com.fca.uconnect.global.GlobalUconnectExtRemoteOp.RemoteOperationRequest;
import com.fca.uconnect.global.GlobalUconnectExtRemoteOp.RemoteOperationRequest.ActionEnum;
import com.fca.uconnect.global.GlobalUconnectExtRemoteOp.RemoteOperationResponse;
import com.fca.uconnect.global.GlobalUconnectExtRemoteOp.RemoteOperationStatus;
import com.google.protobuf.ByteString;
import com.google.protobuf.ExtensionRegistry;
import com.google.protobuf.InvalidProtocolBufferException;
public class SDPExampleForRemoteOp {
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 AWSIotMqttClient mqttClient; // The mqtt client object from the AWS IoT client library.
private int messageId; // The messageId is a sequential number incremented and assigned to each message sent from the client.
private AWSIotTopic iotTopic; // The Topic object to subscribe for inbound messages.
private ExtensionRegistry extRegistry; // Google protocol buffers extension registry instance.
public SDPExampleForRemoteOp() {
extRegistry = ExtensionRegistry.newInstance();
extRegistry.add(GlobalUconnectExtRemoteOp.remoteOperationResponse);
extRegistry.add(GlobalUconnectExtRemoteOp.remoteOperationSubscribeResponse);
extRegistry.add(GlobalUconnectExtRemoteOp.remoteOperationStatus);
}
public void process() {
mqttClient = new AWSIotMqttClient("endpoint", clientId, "awsAccessKeyId", "awsSecretAccessKey");
if (mqttClient == null) {
System.out.println("Error init mqtt client.");
System.exit(0);
}
try {
mqttClient.connect();
iotTopic = new AWSIotTopic("/RO/#",AWSIotQos.QOS1){
public void onMessage(AWSIotMessage msg) {
UconnectMessage msgIn = null;
try {
msgIn = UconnectMessage.parseFrom(msg.getPayload(),extRegistry);
} catch (InvalidProtocolBufferException e) {
}
// sync response
//Acknowledging Remote OperationRequest
if (msgIn.getMessages(0).hasExtension(GlobalUconnectExtRemoteOp.remoteOperationResponse)) {
RemoteOperationResponse roAckMsg = msgIn.getMessages(0).getExtension(GlobalUconnectExtRemoteOp.remoteOperationResponse);
// async status response after SUBSCRIBE Remote operation request
if (msgIn.getMessages(0).hasExtension(GlobalUconnectExtRemoteOp.remoteOperationStatus)) {
RemoteOperationStatus roStatusmsg = msgIn.getMessages(0).getExtension(GlobalUconnectExtRemoteOp.remoteOperationStatus);
}
}
}};
mqttClient.subscribe(iotTopic);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
try {
sendMessage(getRemoteDoorsMsg(ActionEnum.SUBSCRIBE, CommandEnum.UNLOCK_DRIVER, 0));
} catch (AWSIotException e) {
e.printStackTrace();
}
}
public UconnectMessage getRemoteDoorsMsg( RemoteOperationRequest.ActionEnum action, RemoteDoorRequest.CommandEnum command, int delay) {
messageId++;
RemoteOperationRequest ro = RemoteOperationRequest.newBuilder()
.setAction(action)
.setRemoteDoorRequest(
RemoteDoorRequest.newBuilder()
.setCommand(command)
.setDelay(delay))
.build();
UconnectMessage msg = UconnectMessage.newBuilder()
.setTimestamp(System.currentTimeMillis())
.setMessageId(messageId)
.addMessages(UconnectAny.newBuilder().setExtension(GlobalUconnectExtRemoteOp.remoteOperationRequest,ro))
.build();
return msg;
}
private void sendMessage(Object msgIn) throws AWSIotException {
UconnectMessage msg = (UconnectMessage)msgIn;
final byte[] msgOut = msg.toByteArray();
new Thread(new Runnable() {
@Override
public void run() {
try {
AWSIotMessage message = new
MessagePublisherListener(clientId+"/RO/",AWSIotQos.QOS1,msgOut);
mqttClient.publish(message);
} catch (AWSIotException e) {
System.out.println("Caught Exception "+e);
e.printStackTrace();
}
}
}).start();
}
public static void main(String[] args) {
SDPExampleForRemoteOp client = new SDPExampleForRemoteOp();
client.process();
}
}
The example code demonstrates how to connect with AWS IoT for publishing and subscribing to the RemoteOperations topic.
Download Client Example Code here
Download Service Example Code here