Examples with Supplier java.util.function.Supplier used on opensource projects

Example 86 with Supplier

use of java.util.function.Supplier in project riposte by Nike-Inc.

the class AsyncNettyHelperTest method supplierWithTracingAndMdc_ctx_works_as_expected.

@Test
public void supplierWithTracingAndMdc_ctx_works_as_expected() {
    // given
    Pair<Deque<Span>, Map<String, String>> setupInfo = setupStateWithTracingAndMdcInfo();
    // when
    Supplier result = AsyncNettyHelper.supplierWithTracingAndMdc(supplierMock, ctxMock);
    // then
    verifySupplierWithTracingAndMdcSupport(result, supplierMock, setupInfo.getLeft(), setupInfo.getRight());
}

Example 87 with Supplier

use of java.util.function.Supplier in project riposte by Nike-Inc.

the class ParserTest method test_match4_works.

@Test
public void test_match4_works() throws ParserFailure {
    final Pattern numberPattern = Pattern.compile("([0-9])");
    final Pattern booleanPattern = Pattern.compile("(true|false)");
    final Supplier<Parser<Integer>> number = () -> regex(numberPattern).map(m -> new Integer(m.group(1)));
    final Supplier<Parser<Boolean>> bool = () -> regex(booleanPattern).map(m -> new Boolean(m.group(1)));
    Parser<String> parser = number.get().thenParse(string("A")).thenParse(bool).thenParse(number).map(match((first, second, third, fourth) -> {
        return first.toString() + "+" + second.toString() + "+" + third.toString() + "+" + fourth.toString();
    }));
    Optional<String> oResult = parser.tryParse("1Atrue2");
    assertThat(oResult.isPresent()).isTrue();
    assertThat(oResult.get()).isNotNull();
    assertThat(oResult.get()).isEqualTo("1+A+true+2");
}

Example 88 with Supplier

use of java.util.function.Supplier in project riposte by Nike-Inc.

the class ParserTest method test_match5_works.

@Test
public void test_match5_works() throws ParserFailure {
    final Pattern numberPattern = Pattern.compile("([0-9])");
    final Pattern booleanPattern = Pattern.compile("(true|false)");
    final Supplier<Parser<Integer>> number = () -> regex(numberPattern).map(m -> new Integer(m.group(1)));
    final Supplier<Parser<Boolean>> bool = () -> regex(booleanPattern).map(m -> new Boolean(m.group(1)));
    Parser<String> parser = number.get().thenParse(string("A")).thenParse(bool).thenParse(number).thenParse(string("B")).map(match((first, second, third, fourth, fifth) -> {
        return first.toString() + "+" + second.toString() + "+" + third.toString() + "+" + fourth.toString() + "+" + fifth.toString();
    }));
    Optional<String> oResult = parser.tryParse("1Atrue2B");
    assertThat(oResult.isPresent()).isTrue();
    assertThat(oResult.get()).isNotNull();
    assertThat(oResult.get()).isEqualTo("1+A+true+2+B");
}

Example 89 with Supplier

use of java.util.function.Supplier in project jdk8u_jdk by JetBrains.

the class ConcurrentContainsKeyTest method testOnce.

private static void testOnce(Object[] content, ConcurrentHashMap<Object, Object> m) {
    CountDownLatch s = new CountDownLatch(1);
    Supplier<Runnable> sr = () -> () -> {
        try {
            s.await();
        } catch (InterruptedException e) {
        }
        for (int i = 0; i < R * N; i++) {
            Object o = content[i % content.length];
            if (!m.containsKey(o)) {
                throw new AssociationFailure("CHM.containsKey failed: entry does not exist");
            }
        }
    };
    int ps = Runtime.getRuntime().availableProcessors();
    Stream<CompletableFuture> runners = IntStream.range(0, ps).mapToObj(i -> sr.get()).map(CompletableFuture::runAsync);
    CompletableFuture all = CompletableFuture.allOf(runners.toArray(CompletableFuture[]::new));
    // Trigger the runners to start checking key membership
    s.countDown();
    try {
        all.join();
    } catch (CompletionException e) {
        Throwable t = e.getCause();
        if (t instanceof AssociationFailure) {
            throw (AssociationFailure) t;
        } else {
            throw e;
        }
    }
}

Example 90 with Supplier

use of java.util.function.Supplier in project jdk8u_jdk by JetBrains.

the class SequentialOpTest method testLazy.

@SuppressWarnings({ "rawtypes", "unchecked" })
@Test(dataProvider = "StreamTestData<Integer>", dataProviderClass = StreamTestDataProvider.class, groups = { "serialization-hostile" })
public void testLazy(String name, TestData.OfRef<Integer> data) {
    Function<Integer, Integer> id = LambdaTestHelpers.identity();
    AtomicInteger counter = new AtomicInteger();
    Supplier<Stream<Integer>>[] suppliers = new Supplier[] { () -> data.stream(), () -> data.parallelStream() };
    UnaryOperator<Stream<Integer>>[] configs = new UnaryOperator[] { (UnaryOperator<Stream<Integer>>) s -> s.peek(e -> {
        counter.incrementAndGet();
    }), (UnaryOperator<Stream<Integer>>) s -> s.map(id).peek(e -> {
        counter.incrementAndGet();
    }).sequential().map(id), (UnaryOperator<Stream<Integer>>) s -> s.map(id).peek(e -> {
        counter.incrementAndGet();
    }).parallel().map(id), (UnaryOperator<Stream<Integer>>) s -> s.sequential().map(id).peek(e -> {
        counter.incrementAndGet();
    }).map(id), (UnaryOperator<Stream<Integer>>) s -> s.parallel().map(id).peek(e -> {
        counter.incrementAndGet();
    }).map(id) };
    for (int i = 0; i < suppliers.length; i++) {
        setContext("supplierIndex", i);
        Supplier<Stream<Integer>> supp = suppliers[i];
        for (int j = 0; j < configs.length; j++) {
            setContext("configIndex", j);
            UnaryOperator<Stream<Integer>> config = configs[j];
            counter.set(0);
            Stream<Integer> stream = config.apply(supp.get());
            assertEquals(0, counter.get());
            Iterator<Integer> iterator = stream.iterator();
            assertEquals(0, counter.get());
            if (iterator.hasNext())
                iterator.next();
            assertTrue(data.size() == 0 || counter.get() > 0);
            counter.set(0);
            stream = config.apply(supp.get());
            Spliterator<Integer> spliterator = stream.spliterator();
            assertEquals(0, counter.get());
            spliterator.forEachRemaining(e -> {
            });
            assertTrue(data.size() == 0 || counter.get() > 0);
        }
    }
}