Examples with Range com.vaadin.flow.internal.Range used on opensource projects

Example 21 with Range

use of com.vaadin.flow.internal.Range in project flow by vaadin.

the class DataCommunicator method flush.

private void flush() {
    Set<String> oldActive = new HashSet<>(activeKeyOrder);
    Range effectiveRequested;
    final Range previousActive = Range.withLength(activeStart, activeKeyOrder.size());
    // With defined size the backend is only queried when necessary
    if (definedSize && (resendEntireRange || sizeReset)) {
        assumedSize = getDataProviderSize();
    } else if (!definedSize && (!skipCountIncreaseUntilReset || sizeReset)) {
        // with undefined size, size estimate is checked when scrolling down
        updateUndefinedSize();
    }
    effectiveRequested = requestedRange.restrictTo(Range.withLength(0, assumedSize));
    resendEntireRange |= !(previousActive.intersects(effectiveRequested) || (previousActive.isEmpty() && effectiveRequested.isEmpty()));
    UI ui = getUI();
    if (ui != null && executor != null) {
        // will perform fetch from data provider with given range.
        if (ui.getPushConfiguration().getPushMode() != PushMode.AUTOMATIC) {
            throw new IllegalStateException("Asynchronous DataCommunicator updates require Push to be enabled and PushMode.AUTOMATIC");
        }
        if (future != null) {
            future.cancel(true);
        }
        future = CompletableFuture.supplyAsync(() -> collectKeysToFlush(previousActive, effectiveRequested), executor);
        future.thenAccept(activation -> {
            if (ui == null) {
                return;
            }
            ui.access(() -> {
                performUpdate(oldActive, effectiveRequested, previousActive, activation);
            });
        });
    } else {
        Activation activation = collectKeysToFlush(previousActive, effectiveRequested);
        performUpdate(oldActive, effectiveRequested, previousActive, activation);
    }
}

Example 22 with Range

use of com.vaadin.flow.internal.Range in project flow by vaadin.

the class HierarchyMapperWithDataTest method fetchRangeOfRows.

@Test
public void fetchRangeOfRows() {
    expand(testData.get(0));
    expand(testData.get(1));
    List<Node> expectedResult = testData.stream().filter(n -> roots.contains(n) || n.getParent().equals(testData.get(0)) || n.getParent().equals(testData.get(1))).collect(Collectors.toList());
    // Range containing deepest level of expanded nodes without their
    // parents in addition to root nodes at the end.
    Range range = Range.between(3, mapper.getTreeSize());
    verifyFetchIsCorrect(expectedResult, range);
    // Only the expanded two nodes, nothing more.
    range = Range.between(0, 2);
    verifyFetchIsCorrect(expectedResult, range);
    // Fetch everything
    range = Range.between(0, mapper.getTreeSize());
    verifyFetchIsCorrect(expectedResult, range);
}

Example 23 with Range

use of com.vaadin.flow.internal.Range in project flow by vaadin.

the class HierarchyMapperWithDataTest method fetchRangeOfRowsWithSorting.

@Test
public void fetchRangeOfRowsWithSorting() {
    // Expand before sort
    expand(testData.get(0));
    expand(testData.get(1));
    // Construct a sorted version of test data with correct filters
    List<List<Node>> levels = new ArrayList<>();
    Comparator<Node> comparator = Comparator.comparing(Node::getNumber).reversed();
    levels.add(testData.stream().filter(n -> n.getParent() == null).sorted(comparator).collect(Collectors.toList()));
    levels.add(testData.stream().filter(n -> n.getParent() == testData.get(0)).sorted(comparator).collect(Collectors.toList()));
    levels.add(testData.stream().filter(n -> n.getParent() == testData.get(1)).sorted(comparator).collect(Collectors.toList()));
    List<Node> expectedResult = levels.get(0).stream().flatMap(root -> {
        Stream<Node> nextLevel = levels.get(1).stream().filter(n -> n.getParent() == root).flatMap(node -> Stream.concat(Stream.of(node), levels.get(2).stream().filter(n -> n.getParent() == node)));
        return Stream.concat(Stream.of(root), nextLevel);
    }).collect(Collectors.toList());
    // Apply sorting
    mapper.setInMemorySorting(comparator::compare);
    // Range containing deepest level of expanded nodes without their
    // parents in addition to root nodes at the end.
    Range range = Range.between(8, mapper.getTreeSize());
    verifyFetchIsCorrect(expectedResult, range);
    // Only the root nodes, nothing more.
    range = Range.between(0, ROOT_COUNT);
    verifyFetchIsCorrect(expectedResult, range);
    // Fetch everything
    range = Range.between(0, mapper.getTreeSize());
    verifyFetchIsCorrect(expectedResult, range);
}

Example 24 with Range

use of com.vaadin.flow.internal.Range in project flow by vaadin.

the class RangeTest method combine_subRange.

@Test
public void combine_subRange() {
    Range r1 = Range.between(0, 10);
    Range r2 = Range.between(2, 8);
    // Test both ways, should give the same result
    Range combined1 = r1.combineWith(r2);
    Range combined2 = r2.combineWith(r1);
    assertEquals(combined1, combined2);
    assertEquals(r1, combined1);
}

Example 25 with Range

use of com.vaadin.flow.internal.Range in project flow by vaadin.

the class RangeTest method combine_barelyOverlapping.

@Test
public void combine_barelyOverlapping() {
    Range r1 = Range.between(0, 10);
    Range r2 = Range.between(10, 20);
    // Test both ways, should give the same result
    Range combined1 = r1.combineWith(r2);
    Range combined2 = r2.combineWith(r1);
    assertEquals(combined1, combined2);
    assertEquals(0, combined1.getStart());
    assertEquals(20, combined1.getEnd());
}