FutureExample.java

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 * Copyright (c) 2015 Christos Froussios
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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package itrx.chapter3.leaving;


import static org.junit.Assert.*;

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;

import org.junit.Test;

import rx.Observable;

public class FutureExample {

	public void exampleFuture() {
		Observable<Long> values = Observable.timer(500, TimeUnit.MILLISECONDS);

		values.subscribe(v -> System.out.println("Emitted: " + v));

		Future<Long> future = values.toBlocking().toFuture();
		try {
			System.out.println(future.get());
		} catch (InterruptedException e) {
			e.printStackTrace();
		} catch (ExecutionException e) {
			e.printStackTrace();
		}
		
		// Emitted: 0
		// 0
	}
	
	
	//
	//
	
	@Test
	public void testFuture() throws InterruptedException, ExecutionException {
		Observable<Integer> sequence = Observable.just(0);
		Future<Integer> future = sequence.toBlocking().toFuture();
		int value = future.get();
		assertEquals(0, value);
	}

}