Etalis tutorial

[Tim Deweert]

Hi, I just installed Etalis and I'm trying to understand how it works. I've read the manual but didn't get that much wiser.

I have a class called HeartRate with the following fields:

int heartrate;

String heartratesTimestamp;

String macAddress;

I would like to write a rule that when the heartrate is above 180, the rule fires. Could someone give me a link to a tutorial on jtalis or better

write this rule so that I can build further on it for other rules?

[Tim Deweert]

After a lot of searching, I found it myself.

PrologEngineWrapper<?> engine = new JPLEngineWrapper();
context = new JtalisContextImpl(engine);

context.addEventTrigger("rule1/_");

context.registerOutputProvider(new myOutputProvider());

// Heart rate raises above 180
context.addDynamicRule("rule1(RATE,MAC) <- heartrate(RATE,MAC) where " + "(RATE > 180, MAC == 'AAAAAAAA11111111')");

context.registerOutputProvider(new DefaultOutputProvider() {
 

 @Override

 public void outputEvent(EtalisEvent event) {

 String eventName = event.getName();

 String macAddress = event.getStringProperty(1);

 switch (eventName) {

 case "rule1":

 System.out.println("Message from " + macAddress + ": Heart rate is to high!");

 break;

 case "rule2":

 System.out.println("Message from " + macAddress + ": Heart rate is to low!");

 break;

 }

 }
 });

EtalisEvent event = new EtalisEvent("heartrate", heartrate.getHeartrate(), heartrate.getMacAddress());
 event.setTimeStarts(DateConverter.convertISODateToTimestamp(heartrate.getHeartratesTimestamp(), 0));
 event.setTimeEnds(DateConverter.convertISODateToTimestamp(heartrate.getHeartratesTimestamp(), 1));
 context.pushEvent(event);