import io.reactivex.Observable;
import io.reactivex.disposables.Disposable;
import io.reactivex.observables.ConnectableObservable;
import java.util.concurrent.TimeUnit;
public class HotObservable {
public static void main(String[] args) throws InterruptedException{
ConnectableObservable<Long> numbers = (ConnectableObservable<Long>) Observable
.interval(1, TimeUnit.SECONDS) // generate numbers
.publish(); // make it hot
numbers.connect(); // create internal subscribtion
Disposable subscriber1 = numbers
.subscribe(n ->System.out.println("First subscriber: "+ n ));
Thread.sleep(3000);
Disposable subscriber2 = numbers
.subscribe(n ->System.out.println(" Second subscriber: "+ n ));
Thread.sleep(5000);
System.out.println(">>> First subscriber goes for lunch break");
subscriber1.dispose();
Thread.sleep(5000);
System.out.println("<<< First subscriber returned from lunch");
subscriber1 = numbers.subscribe(n ->System.out.println("First subscriber: "+ n ));
Thread.sleep(60000); // Just to keep the program running
}
}
/*
// An alternative to connect()
Observable<Long> numbers = Observable
.interval(1, TimeUnit.SECONDS) // generate numbers
.publish(). // make it hot
refCount(); // push data as long as someone is subscribed
*/
