Examples with ForkJoinPool java8.util.concurrent.ForkJoinPool used on opensource projects

Example 6 with ForkJoinPool

use of java8.util.concurrent.ForkJoinPool in project streamsupport by stefan-zobel.

the class ForkJoinPoolTest method testGetParallelism.

/**
 * getParallelism returns size set in constructor
 */
public void testGetParallelism() {
    ForkJoinPool p = new ForkJoinPool(1);
    PoolCleaner cleaner = null;
    try {
        cleaner = cleaner(p);
        assertEquals(1, p.getParallelism());
    } finally {
        if (cleaner != null) {
            cleaner.close();
        }
    }
}

Example 7 with ForkJoinPool

use of java8.util.concurrent.ForkJoinPool in project streamsupport by stefan-zobel.

the class ForkJoinPoolTest method testTimedInvokeAny4.

/**
 * timed invokeAny(c) throws ExecutionException if no task completes
 */
public void testTimedInvokeAny4() throws Throwable {
    ExecutorService e = new ForkJoinPool(1);
    PoolCleaner cleaner = null;
    try {
        cleaner = cleaner(e);
        long startTime = System.nanoTime();
        List<Callable<String>> l = new ArrayList<>();
        l.add(new NPETask());
        try {
            e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
            shouldThrow();
        } catch (ExecutionException success) {
            assertTrue(success.getCause() instanceof NullPointerException);
        }
        assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
    } finally {
        if (cleaner != null) {
            cleaner.close();
        }
    }
}

Example 8 with ForkJoinPool

use of java8.util.concurrent.ForkJoinPool in project streamsupport by stefan-zobel.

the class ForkJoinPoolTest method testTimedInvokeAny1.

/**
 * timed invokeAny(null) throws NullPointerException
 */
public void testTimedInvokeAny1() throws Throwable {
    ExecutorService e = new ForkJoinPool(1);
    PoolCleaner cleaner = null;
    try {
        cleaner = cleaner(e);
        try {
            e.invokeAny(null, randomTimeout(), randomTimeUnit());
            shouldThrow();
        } catch (NullPointerException success) {
        }
    } finally {
        if (cleaner != null) {
            cleaner.close();
        }
    }
}

Example 9 with ForkJoinPool

use of java8.util.concurrent.ForkJoinPool in project streamsupport by stefan-zobel.

the class ForkJoinPoolTest method testTimedInvokeAny5.

/**
 * timed invokeAny(c) returns result of some task in c
 */
public void testTimedInvokeAny5() throws Throwable {
    ExecutorService e = new ForkJoinPool(1);
    PoolCleaner cleaner = null;
    try {
        cleaner = cleaner(e);
        long startTime = System.nanoTime();
        List<Callable<String>> l = new ArrayList<>();
        l.add(new StringTask());
        l.add(new StringTask());
        String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS);
        assertSame(TEST_STRING, result);
        assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
    } finally {
        if (cleaner != null) {
            cleaner.close();
        }
    }
}

Example 10 with ForkJoinPool

use of java8.util.concurrent.ForkJoinPool in project streamsupport by stefan-zobel.

the class ForkJoinPoolTest method testSubmitEE.

/**
 * get of submit(callable) throws ExecutionException if callable
 * throws exception
 */
public void testSubmitEE() throws Throwable {
    ForkJoinPool p = new ForkJoinPool(1);
    PoolCleaner cleaner = null;
    try {
        cleaner = cleaner(p);
        try {
            p.submit(new Callable<Object>() {

                public Object call() {
                    throw new ArithmeticException();
                }
            }).get();
            shouldThrow();
        } catch (ExecutionException success) {
            assertTrue(success.getCause() instanceof ArithmeticException);
        }
    } finally {
        if (cleaner != null) {
            cleaner.close();
        }
    }
}