Java OptionalLong类代码示例

import java.util.OptionalLong; //导入依赖的package包/类
@Test
public void equals() {
  ImmutableJdkOptionals o1 = ImmutableJdkOptionals.of()
      .withV2("v2")
      .withI1(1)
      .withD1(1.0);

  ImmutableJdkOptionals o2 = ImmutableJdkOptionals.of(
      Optional.of("v2"),
      OptionalInt.of(1),
      OptionalLong.empty(),
      OptionalDouble.of(1.0));

  check(o1).is(o2);
  check(o1.hashCode()).is(o2.hashCode());
}
 

import java.util.OptionalLong; //导入依赖的package包/类
@Override
public <C extends VPackSetupContext<C>> void setup(final C context) {
	context.registerDeserializer(Instant.class, VPackJdk8Deserializers.INSTANT);
	context.registerDeserializer(LocalDate.class, VPackJdk8Deserializers.LOCAL_DATE);
	context.registerDeserializer(LocalDateTime.class, VPackJdk8Deserializers.LOCAL_DATE_TIME);
	context.registerDeserializer(ZonedDateTime.class, VPackJdk8Deserializers.ZONED_DATE_TIME);
	context.registerDeserializer(OffsetDateTime.class, VPackJdk8Deserializers.OFFSET_DATE_TIME);
	context.registerDeserializer(ZoneId.class, VPackJdk8Deserializers.ZONE_ID);
	context.registerDeserializer(Optional.class, VPackJdk8Deserializers.OPTIONAL, true);
	context.registerDeserializer(OptionalDouble.class, VPackJdk8Deserializers.OPTIONAL_DOUBLE, true);
	context.registerDeserializer(OptionalInt.class, VPackJdk8Deserializers.OPTIONAL_INT, true);
	context.registerDeserializer(OptionalLong.class, VPackJdk8Deserializers.OPTIONAL_LONG, true);

	context.registerSerializer(Instant.class, VPackJdk8Serializers.INSTANT);
	context.registerSerializer(LocalDate.class, VPackJdk8Serializers.LOCAL_DATE);
	context.registerSerializer(LocalDateTime.class, VPackJdk8Serializers.LOCAL_DATE_TIME);
	context.registerSerializer(ZonedDateTime.class, VPackJdk8Serializers.ZONED_DATE_TIME);
	context.registerSerializer(OffsetDateTime.class, VPackJdk8Serializers.OFFSET_DATE_TIME);
	context.registerSerializer(ZoneId.class, VPackJdk8Serializers.ZONE_ID);
	context.registerSerializer(Optional.class, VPackJdk8Serializers.OPTIONAL);
	context.registerSerializer(OptionalDouble.class, VPackJdk8Serializers.OPTIONAL_DOUBLE);
	context.registerSerializer(OptionalInt.class, VPackJdk8Serializers.OPTIONAL_INT);
	context.registerSerializer(OptionalLong.class, VPackJdk8Serializers.OPTIONAL_LONG);
}
 

import java.util.OptionalLong; //导入依赖的package包/类
private ByteArrayOutputStream setupTestForMasterElementWithOneChildAndElementSizedBasedTermination()
        throws IOException {
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    byte [] EBML_element_rawbytes = writeElement(EBML_id_bytes, wrapByte(0x84), outputStream);
    byte [] EBMLVersion_element_rawbytes = writeElement(EBMLVersion_id_bytes, wrapByte(0x81), outputStream);
    byte [] EBMLVersion_data_bytes = new byte [] { (byte) 0x4};

    outputStream.write(EBMLVersion_data_bytes);

    parserCallback.setCheckExpectedCallbacks(true);

    parserCallback.expectCallback(TestEBMLParserCallback.CallbackDescription.builder()
            .callbackType(TestEBMLParserCallback.CallbackDescription.CallbackType.START)
            .typeInfo(TestEBMLTypeInfoProvider.EBML)
            .elementCount(0)
            .numBytes(OptionalLong.of(4))
            .bytes(EBML_element_rawbytes)
            .build());
    addExpectedCallbacksForEBMLVersion(EBMLVersion_element_rawbytes, EBMLVersion_data_bytes, 1)
            .expectCallback(createExpectedCallbackForEndEBML(0));
    return outputStream;
}
 

import java.util.OptionalLong; //导入依赖的package包/类
@Test(timeout = 10000)
@DirtiesContext
public void testSerialHeader() throws Exception {

    UUID id = UUID.randomUUID();
    uut.publish(Fact.of("{\"id\":\"" + id
            + "\",\"type\":\"someType\",\"ns\":\"default\",\"aggIds\":[\"" + id + "\"]}",
            "{}"));

    UUID id2 = UUID.randomUUID();
    uut.publish(Fact.of("{\"id\":\"" + id2
            + "\",\"type\":\"someType\",\"meta\":{\"foo\":\"bar\"},\"ns\":\"default\",\"aggIds\":[\""
            + id2 + "\"]}",
            "{}"));

    OptionalLong serialOf = uut.serialOf(id);
    assertTrue(serialOf.isPresent());

    Fact f = uut.fetchById(id).get();
    Fact fact2 = uut.fetchById(id2).get();

    assertEquals(serialOf.getAsLong(), f.serial());
    assertTrue(f.before(fact2));
}
 

import java.util.OptionalLong; //导入依赖的package包/类
@Test
public void test02() throws Exception {

	try (SqlAgent agent = config.agent()) {
		agent.required(() -> {
			PropertyMapperTestEntity test1 = new PropertyMapperTestEntity(1);
			test1.intValue = OptionalInt.empty();
			test1.longValue = OptionalLong.empty();
			test1.doubleValue = OptionalDouble.empty();
			test1.dateValue = null;
			test1.datetimeValue = null;
			test1.enumValue = null;
			test1.bigIntValue = null;
			agent.insert(test1);
			PropertyMapperTestEntity data = agent.find(PropertyMapperTestEntity.class, 1).orElse(null);
			assertThat(data, is(test1));
		});
	}
}
 

import java.util.OptionalLong; //导入依赖的package包/类
private ByteArrayOutputStream setupTestForMasterElementWithOneChildAndUnknownlength() throws IOException {
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    byte [] EBML_element_rawbytes = writeElement(EBML_id_bytes, UNKNOWN_LENGTH, outputStream);
    byte [] EBMLVersion_element_rawbytes = writeElement(EBMLVersion_id_bytes, wrapByte(0x83), outputStream);
    byte [] EBMLVersion_data_bytes = new byte[] {0x1, 0x4, 0xD};

    outputStream.write(EBMLVersion_data_bytes);
    outputStream.write(EBML_ZERO_LENGTH_RAWBYTES);

    parserCallback.setCheckExpectedCallbacks(true);
    parserCallback.expectCallback(createExpectedCallbackForStartOfEBMLUnknownLength(EBML_element_rawbytes));
    addExpectedCallbacksForEBMLVersion(EBMLVersion_element_rawbytes, EBMLVersion_data_bytes, 1)
            .expectCallback(createExpectedCallbackForEndEBML(0))
            .expectCallback(TestEBMLParserCallback.CallbackDescription.builder()
                    .callbackType(TestEBMLParserCallback.CallbackDescription.CallbackType.START)
                    .elementCount(2)
                    .typeInfo(TestEBMLTypeInfoProvider.EBML)
                    .numBytes(OptionalLong.of(0))
                    .bytes(EBML_ZERO_LENGTH_RAWBYTES)
                    .build())
            .expectCallback(createExpectedCallbackForEndEBML(2));
    return outputStream;
}
 

import java.util.OptionalLong; //导入依赖的package包/类
@Nullable
private BodyReader createBodyReader(InputStream inputStream, RawHttpHeaders headers, boolean hasBody) {
    @Nullable BodyReader bodyReader;

    if (hasBody) {
        @Nullable Long bodyLength = null;
        OptionalLong headerLength = parseContentLength(headers);
        if (headerLength.isPresent()) {
            bodyLength = headerLength.getAsLong();
        }
        BodyType bodyType = getBodyType(headers, bodyLength);
        bodyReader = new LazyBodyReader(bodyType, inputStream, bodyLength, options.allowNewLineWithoutReturn());
    } else {
        bodyReader = null;
    }
    return bodyReader;
}
 

import java.util.OptionalLong; //导入依赖的package包/类
void use() {
  UsingAllOptionals value =
      ImmutableUsingAllOptionals.builder()
          .v1(1)
          .v2(2)
          .i1(OptionalInt.of(1))
          .d1(1.1)
          .l1(OptionalLong.empty())
          .jso(javaslang.control.Option.none())
          .build();

  Objects.equals(value.v1().get(), value.v2().get());
  Objects.hash(value.i1(), value.l1(), value.d1());
}
 

import java.util.OptionalLong; //导入依赖的package包/类
private OptionalLong maybeMaxTickTime() {
    return tickQuoteRepository
        .getAll()
        .values()
        .stream()
        .map(TickQuote::tick)
        .mapToLong(ITick::getTime)
        .max();
}
 

import java.util.OptionalLong; //导入依赖的package包/类
@Nonnull
public static OptionalLong parseLong(@Nonnull String s) {
    try {
        return OptionalLong.of(Long.parseLong(s));
    } catch (NumberFormatException e) {
        return OptionalLong.empty();
    }
}
 

import java.util.OptionalLong; //导入依赖的package包/类
default OptionalLong getLongProperty(String name) {
    Optional<String> optValue = getProperty(name);
    if (optValue.isPresent()) {
        return OptionalLong.of(Long.parseLong(optValue.get()));
    } else {
        return OptionalLong.empty();
    }
}
 

import java.util.OptionalLong; //导入依赖的package包/类
@SuppressWarnings({"unchecked", "OptionalUsedAsFieldOrParameterType"})
private <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks, OptionalLong timeoutNanos)
    throws InterruptedException {
  Objects.requireNonNull(tasks, "'tasks' should not be 'null'.");
  CompletableFuture[] futures = new CompletableFuture[tasks.size()];
  int index = 0;
  for (Callable<T> task : tasks) {
    futures[index++] = submit(task);
  }
  boolean completeWithTimeout = timeoutNanos.isPresent();
  try {
    if (completeWithTimeout) {
      CompletableFuture.allOf(futures)
          .get(timeoutNanos.getAsLong(), TimeUnit.NANOSECONDS);
      completeWithTimeout = false;
    } else {
      CompletableFuture.allOf(futures)
          .get();
    }
  } catch (ExecutionException | TimeoutException ignored) {
    logger.error("Got exception while waiting for completion of '{}' tasks.", tasks.size(), ignored);
  }
  if (completeWithTimeout) {
    TimeoutException timeoutException = new TimeoutException(
        "Got timeout after '" + timeoutNanos.getAsLong() + "' nanos."
    );
    for (CompletableFuture future : futures) {
      future.completeExceptionally(timeoutException);
    }
  }
  return Arrays.stream(futures)
      .map(future -> (Future<T>) future)
      .collect(Collectors.collectingAndThen(Collectors.toList(), Collections::unmodifiableList));
}
 

import java.util.OptionalLong; //导入依赖的package包/类
@SuppressWarnings("unchecked")
public JsonPrinter addJavaHandlers() {
  return this
      .addObjectClassHandler(Enum.class, e -> e.name())
      .addObjectClassHandler(Optional.class, o -> o.orElse(null))
      .addObjectClassHandler(OptionalInt.class, i -> i.isPresent() ? i.getAsInt() : null)
      .addObjectClassHandler(OptionalDouble.class, i -> i.isPresent() ? i.getAsDouble() : null)
      .addObjectClassHandler(OptionalLong.class, i -> i.isPresent() ? i.getAsLong() : null)
      .addObjectClassHandler(Class.class, c -> c.getName())
      .addObjectClassHandler(Path.class, p -> p.toString().replace('\\', '/'))
      .addObjectClassHandler(File.class, f -> f.toString().replace('\\', '/'));
}
 

import java.util.OptionalLong; //导入依赖的package包/类
public void testFindLast_longStream() {
  Truth.assertThat(findLast(LongStream.of())).isEqualTo(OptionalLong.empty());
  Truth.assertThat(findLast(LongStream.of(1, 2, 3, 4, 5))).isEqualTo(OptionalLong.of(5));

  // test with a large, not-subsized Spliterator
  List<Long> list =
      LongStream.rangeClosed(0, 10000).boxed().collect(Collectors.toCollection(LinkedList::new));
  Truth.assertThat(findLast(list.stream().mapToLong(i -> i))).isEqualTo(OptionalLong.of(10000));

  // no way to find out the stream is empty without walking its spliterator
  Truth.assertThat(findLast(list.stream().mapToLong(i -> i).filter(i -> i < 0)))
      .isEqualTo(OptionalLong.empty());
}
 

import java.util.OptionalLong; //导入依赖的package包/类
@Test
public void testNumberToOptionalIntConverter(){
    converter = new JavaOptionalConverterModule.NumberToOptionalIntConverter();

    assertTrue(converter.canHandle(1l, TypeToken.of(OptionalInt.class)));
    assertFalse(converter.canHandle(1l, TypeToken.of(OptionalLong.class)));

    Object result = converter.convert(1l, TypeToken.of(OptionalInt.class));
    assertTrue(result instanceof OptionalInt);
    assertEquals(1, ((OptionalInt) result).getAsInt());
}