Examples with IntStream java.util.stream.IntStream used on opensource projects

Example 61 with IntStream

use of java.util.stream.IntStream in project drools by kiegroup.

the class SubstringFunction method invoke.

public FEELFnResult<String> invoke(@ParameterName("string") String string, @ParameterName("start position") Number start, @ParameterName("length") Number length) {
    if (string == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "string", "cannot be null"));
    }
    if (start == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "start position", "cannot be null"));
    }
    if (length != null && length.intValue() <= 0) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "length", "must be a positive number when specified"));
    }
    if (start.intValue() == 0) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "start position", "cannot be zero"));
    }
    int stringLength = string.codePointCount(0, string.length());
    if (Math.abs(start.intValue()) > stringLength) {
        return FEELFnResult.ofError(new InvalidParametersEvent(Severity.ERROR, "parameter 'start position' inconsistent with the actual length of the parameter 'string'"));
    }
    int skip = start.intValue() > 0 ? start.intValue() - 1 : stringLength + start.intValue();
    IntStream stream = string.codePoints().skip(skip);
    if (length != null) {
        stream = stream.limit(length.longValue());
    }
    StringBuilder result = stream.mapToObj(Character::toChars).collect(StringBuilder::new, StringBuilder::append, StringBuilder::append);
    return FEELFnResult.ofResult(result.toString());
}

Example 62 with IntStream

use of java.util.stream.IntStream in project kie-wb-common by kiegroup.

the class FormDefinitionGeneratorForBPMNWithComplexVariableTest method checkInvoiceFormDefinition.

protected void checkInvoiceFormDefinition(FormDefinition invoiceForm, Form originalForm) {
    assertNotNull(invoiceForm);
    Assertions.assertThat(invoiceForm.getModel()).isNotNull().isInstanceOf(DataObjectFormModel.class).hasFieldOrPropertyWithValue("className", INVOICE_MODEL);
    Assertions.assertThat(invoiceForm.getFields()).isNotEmpty().hasSize(4);
    IntStream indexStream = IntStream.range(0, invoiceForm.getFields().size());
    LayoutTemplate formLayout = invoiceForm.getLayoutTemplate();
    assertNotNull(formLayout);
    Assertions.assertThat(formLayout.getRows()).isNotEmpty().hasSize(4);
    indexStream.forEach(index -> {
        FieldDefinition fieldDefinition = invoiceForm.getFields().get(index);
        switch(index) {
            case 0:
                checkFieldDefinition(fieldDefinition, "invoice_user", "User Data:", "user", SubFormFieldDefinition.class, invoiceForm, originalForm.getField(fieldDefinition.getName()));
                break;
            case 1:
                checkFieldDefinition(fieldDefinition, "lines", "Invoice Lines", "lines", MultipleSubFormFieldDefinition.class, invoiceForm, originalForm.getField(fieldDefinition.getName()));
                break;
            case 2:
                checkFieldDefinition(fieldDefinition, "invoice_total", "Invoice Total:", "total", DecimalBoxFieldDefinition.class, invoiceForm, originalForm.getField(fieldDefinition.getName()));
                break;
            case 3:
                checkFieldDefinition(fieldDefinition, "invoice_list", "List of Values:", "list", IntegerMultipleInputFieldDefinition.class, invoiceForm, originalForm.getField(fieldDefinition.getName()));
                break;
        }
        LayoutRow fieldRow = formLayout.getRows().get(index);
        assertNotNull(fieldRow);
        Assertions.assertThat(fieldRow.getLayoutColumns()).isNotEmpty().hasSize(1);
        LayoutColumn fieldColumn = fieldRow.getLayoutColumns().get(0);
        assertNotNull(fieldColumn);
        assertEquals("12", fieldColumn.getSpan());
        Assertions.assertThat(fieldColumn.getLayoutComponents()).isNotEmpty().hasSize(1);
        checkLayoutFormField(fieldColumn.getLayoutComponents().get(0), fieldDefinition, invoiceForm);
    });
}

Example 63 with IntStream

use of java.util.stream.IntStream in project kie-wb-common by kiegroup.

the class AbstractFormDefinitionGeneratorTest method verifyLineForm.

protected void verifyLineForm(FormMigrationSummary summary) {
    Form originalForm = summary.getOriginalForm().get();
    Assertions.assertThat(originalForm.getFormFields()).isNotEmpty().hasSize(4);
    FormDefinition newForm = summary.getNewForm().get();
    Assertions.assertThat(newForm.getFields()).isNotEmpty().hasSize(4);
    Assertions.assertThat(newForm.getModel()).isNotNull().hasFieldOrPropertyWithValue("className", LINE_MODEL).isInstanceOf(DataObjectFormModel.class);
    IntStream indexStream = IntStream.range(0, newForm.getFields().size());
    LayoutTemplate formLayout = newForm.getLayoutTemplate();
    assertNotNull(formLayout);
    Assertions.assertThat(formLayout.getRows()).isNotEmpty().hasSize(1);
    LayoutRow fieldRow = formLayout.getRows().get(0);
    indexStream.forEach(index -> {
        FieldDefinition fieldDefinition = newForm.getFields().get(index);
        switch(index) {
            case 0:
                checkFieldDefinition(fieldDefinition, LINE_PRODUCT, "product", "product", TextBoxFieldDefinition.class, newForm, originalForm.getField(fieldDefinition.getName()));
                break;
            case 1:
                checkFieldDefinition(fieldDefinition, LINE_PRICE, "price", "price", DecimalBoxFieldDefinition.class, newForm, originalForm.getField(fieldDefinition.getName()));
                break;
            case 2:
                checkFieldDefinition(fieldDefinition, LINE_QUANTITY, "quantity", "quantity", IntegerBoxFieldDefinition.class, newForm, originalForm.getField(fieldDefinition.getName()));
                break;
            case 3:
                checkFieldDefinition(fieldDefinition, LINE_TOTAL, "total", "total", DecimalBoxFieldDefinition.class, newForm, originalForm.getField(fieldDefinition.getName()));
                break;
        }
        assertNotNull(fieldRow);
        Assertions.assertThat(fieldRow.getLayoutColumns()).isNotEmpty().hasSize(4);
        LayoutColumn fieldColumn = fieldRow.getLayoutColumns().get(index);
        assertNotNull(fieldColumn);
        assertEquals("3", fieldColumn.getSpan());
        Assertions.assertThat(fieldColumn.getLayoutComponents()).isNotEmpty().hasSize(1);
        checkLayoutFormField(fieldColumn.getLayoutComponents().get(0), fieldDefinition, newForm);
    });
}

Example 64 with IntStream

use of java.util.stream.IntStream in project guava by google.

the class Streams method concat.

/**
 * Returns an {@link IntStream} containing the elements of the first stream, followed by the
 * elements of the second stream, and so on.
 *
 * <p>This is equivalent to {@code Stream.of(streams).flatMapToInt(stream -> stream)}, but the
 * returned stream may perform better.
 *
 * @see IntStream#concat(IntStream, IntStream)
 */
public static IntStream concat(IntStream... streams) {
    boolean isParallel = false;
    int characteristics = Spliterator.ORDERED | Spliterator.SIZED | Spliterator.NONNULL;
    long estimatedSize = 0L;
    ImmutableList.Builder<Spliterator.OfInt> splitrsBuilder = new ImmutableList.Builder<>(streams.length);
    for (IntStream stream : streams) {
        isParallel |= stream.isParallel();
        Spliterator.OfInt splitr = stream.spliterator();
        splitrsBuilder.add(splitr);
        characteristics &= splitr.characteristics();
        estimatedSize = LongMath.saturatedAdd(estimatedSize, splitr.estimateSize());
    }
    return StreamSupport.intStream(CollectSpliterators.flatMapToInt(splitrsBuilder.build().spliterator(), splitr -> splitr, characteristics, estimatedSize), isParallel).onClose(() -> closeAll(streams));
}

Example 65 with IntStream

use of java.util.stream.IntStream in project chuidiang-ejemplos by chuidiang.

the class Java8RandomExample method main.

public static void main(String[] args) {
    Random random = new Random();
    IntStream intStream = random.ints(10, 1, 7);
    Iterator iterator = intStream.iterator();
    while (iterator.hasNext()) {
        System.out.println("Random Number " + iterator.next());
    }
    intStream = random.ints(10, 1, 7);
    intStream.forEach(value -> System.out.println("Random Number " + value));
}