@Override
@Before
public void init() throws IncQueryBaseException {
super.init();
if (!navigationHelper.isInWildcardMode()) {
navigationHelper.registerObservedTypes(
Collections.singleton(SchoolPackage.eINSTANCE.getStudent()),
Collections.singleton(EcorePackage.eINSTANCE.getEString()),
Collections.singleton((EStructuralFeature) SchoolPackage.eINSTANCE.getStudent_Name()));
}
Set<EReference> refs = new HashSet<EReference>();
refs.add(SchoolPackage.eINSTANCE.getStudent_FriendsWith());
transitiveClosureHelper =
IncQueryBaseFactory.getInstance()
.createTransitiveClosureHelper(this.navigationHelper, refs);
aStudent =
(Student)
navigationHelper.findByAttributeValue("Abel Hegedus").iterator().next().getEObject();
bStudent =
(Student)
navigationHelper.findByAttributeValue("Gabor Bergmann").iterator().next().getEObject();
cStudent =
(Student)
navigationHelper.findByAttributeValue("Zoltan Ujhelyi").iterator().next().getEObject();
}
/**
* This is the constructor of the callback class. It got an IoTSystem from the MIDL created model
* and use it to initialize the IncQuery Base Indexer.
*
* @param system
*/
public Callback(IoTSystem system) {
this.system = system;
try {
navigationHelper =
IncQueryBaseFactory.getInstance().createNavigationHelper(this.system, true, null);
} catch (IncQueryBaseException e) {
LOGGER.error(e.getMessage());
}
}
@Override
public void messageArrived(String topic, MqttMessage message) {
try {
Stopwatch sw = Stopwatch.createStarted();
String msg = new String(message.getPayload());
JsonParser parser = new JsonParser();
JsonObject object = parser.parse(msg).getAsJsonObject();
// XXX: workaround for demo!!!!
String sensorId = topic;
String[] segments = topic.split("/");
if (segments.length > 2) {
sensorId = segments[1] + segments[2];
}
long elapsed = sw.elapsed(TimeUnit.MILLISECONDS);
if (elapsed > 5) {
System.out.println("Phase parse: " + elapsed);
}
sw.reset();
// Use IncQuery Base Indexer to find the sensor
Sensor selectedSensor =
(Sensor) navigationHelper.findByAttributeValue(sensorId).iterator().next().getEObject();
elapsed = sw.elapsed(TimeUnit.MILLISECONDS);
if (elapsed > 10) {
System.out.println("Phase indexer: " + elapsed);
}
Payload sensorPayload = selectedSensor.getLastReceivedPayload();
NavigationHelper paramNavHelper =
IncQueryBaseFactory.getInstance().createNavigationHelper(sensorPayload, true, null);
// Get parameters from model using the JSON file content
for (Entry<String, JsonElement> parameter : object.entrySet()) {
// Use IncQuery Base Indexer to find parameter
Set<Setting> settings = paramNavHelper.findByAttributeValue(parameter.getKey());
if (settings.isEmpty()) continue;
DataParameter paramValue = (DataParameter) settings.iterator().next().getEObject();
// Get the parameter new value from the message
JsonElement newValue = parameter.getValue();
// Find parameter type, and set the new value
if (paramValue.getType().equals("int")) {
((IntParameter) paramValue).setValue(newValue.getAsInt());
} else if (paramValue.getType().equals("double")) {
((DoubleParameter) paramValue).setValue(newValue.getAsDouble());
} else if (paramValue.getType().equals("string")) {
((StringParameter) paramValue).setValue(newValue.getAsString());
} else if (paramValue.getType().equals("boolean")) {
((BooleanParameter) paramValue).setValue(newValue.getAsBoolean());
} else if (paramValue.getType().equals("long")) {
((LongParameter) paramValue).setValue(newValue.getAsLong());
}
}
elapsed = sw.elapsed(TimeUnit.MILLISECONDS);
if (elapsed > 10) {
System.out.println("Phase update: " + elapsed);
}
} catch (Exception e) {
LOGGER.error(e.getMessage());
}
}