Examples with TableEntry io.pravega.client.tables.TableEntry used on opensource projects

Example 6 with TableEntry

use of io.pravega.client.tables.TableEntry in project pravega by pravega.

the class KeyValueTableTestBase method checkGlobalIterator.

private void checkGlobalIterator(KeyValueTable keyValueTable, Versions versions, int iteration) {
    val itemsAtOnce = getSecondaryKeyCount() / 5;
    // All expected Entries, indexed by Keys.
    val allEntries = new HashMap<TableKey, TableEntry>();
    forEveryKey((pk, sk) -> {
        val k = new TableKey(pk, sk);
        val e = new TableEntry(k, versions.get(getUniqueKeyId(k.getPrimaryKey(), k.getSecondaryKey())), getValue(pk, sk, iteration));
        allEntries.put(k, e);
    });
    // All Keys, sorted.
    val allKeys = allEntries.keySet().stream().sorted(KEY_COMPARATOR).collect(Collectors.toList());
    // All unique Primary Keys.
    val allPrimaryKeys = allKeys.stream().map(TableKey::getPrimaryKey).distinct().sorted(KEY_COMPARATOR::compare).collect(Collectors.toList());
    // Issue various iterators (range) and verify against expected values.
    for (int startIndex = 0; startIndex < allPrimaryKeys.size() / 2; startIndex++) {
        val endIndex = allPrimaryKeys.size() - startIndex - 1;
        val firstPK = allPrimaryKeys.get(startIndex);
        val lastPK = allPrimaryKeys.get(endIndex);
        val expectedKeys = allKeys.stream().filter(k -> KEY_COMPARATOR.compare(k.getPrimaryKey(), firstPK) >= 0 && KEY_COMPARATOR.compare(k.getPrimaryKey(), lastPK) <= 0).collect(Collectors.toList());
        val iterator = keyValueTable.iterator().maxIterationSize(itemsAtOnce).forRange(firstPK, lastPK);
        val iteratorKeys = new ArrayList<TableKey>();
        iterator.keys().collectRemaining(ii -> iteratorKeys.addAll(ii.getItems())).join();
        AssertExtensions.assertListEquals("Unexpected keys returned from iterator.keys()", expectedKeys, iteratorKeys, this::areEqual);
        val expectedEntries = expectedKeys.stream().map(allEntries::get).collect(Collectors.toList());
        val iteratorEntries = new ArrayList<TableEntry>();
        iterator.entries().collectRemaining(ii -> iteratorEntries.addAll(ii.getItems())).join();
        AssertExtensions.assertListEquals("Unexpected entries returned from iterator.entries()", expectedEntries, iteratorEntries, (e1, e2) -> areEqual(e1, e2) && e1.getVersion().equals(e2.getVersion()));
    }
    // Check all() iterator.
    val allIterator = keyValueTable.iterator().maxIterationSize(itemsAtOnce).all();
    val expectedAllEntries = allKeys.stream().map(allEntries::get).collect(Collectors.toList());
    val allIteratorEntries = new ArrayList<TableEntry>();
    allIterator.entries().collectRemaining(ii -> allIteratorEntries.addAll(ii.getItems())).join();
    AssertExtensions.assertListEquals("Unexpected entries returned from allIterator.entries()", expectedAllEntries, allIteratorEntries, (e1, e2) -> areEqual(e1, e2) && e1.getVersion().equals(e2.getVersion()));
}

Example 7 with TableEntry

use of io.pravega.client.tables.TableEntry in project pravega by pravega.

the class KeyValueTableIteratorImplTests method testGlobalIterators.

@Test
public void testGlobalIterators() {
    val pk1 = newBuffer(DEFAULT_CONFIG.getPrimaryKeyLength());
    val pk2 = newBuffer(DEFAULT_CONFIG.getPrimaryKeyLength());
    val maxIterationSize = 10;
    val c = new KeyValueTableIteratorImpl.TableKeyComparator();
    val allEntries = IntStream.range(0, maxIterationSize).mapToObj(i -> new AbstractMap.SimpleImmutableEntry<>(newBuffer(TOTAL_KEY_LENGTH), newBuffer(5))).sorted((e1, e2) -> c.compare(e1.getKey(), e2.getKey())).collect(Collectors.toList());
    val mockSegment = mock(TableSegment.class);
    when(mockSegment.keyIterator(any())).thenAnswer(arg -> {
        val iteratorArgs = (SegmentIteratorArgs) arg.getArgument(0);
        checkSegmentIteratorArgs(iteratorArgs, pk1, pk2, maxIterationSize);
        val keys = allEntries.stream().map(e -> new TableSegmentKey(Unpooled.wrappedBuffer(e.getKey()), TableSegmentKeyVersion.NO_VERSION)).collect(Collectors.toList());
        return AsyncIterator.singleton(new IteratorItem<>(keys));
    });
    when(mockSegment.entryIterator(any())).thenAnswer(arg -> {
        val iteratorArgs = (SegmentIteratorArgs) arg.getArgument(0);
        checkSegmentIteratorArgs(iteratorArgs, pk1, pk2, maxIterationSize);
        val entries = allEntries.stream().map(e -> new TableSegmentEntry(new TableSegmentKey(Unpooled.wrappedBuffer(e.getKey()), TableSegmentKeyVersion.NO_VERSION), Unpooled.wrappedBuffer(e.getValue()))).collect(Collectors.toList());
        return AsyncIterator.singleton(new IteratorItem<>(entries));
    });
    val selector = mock(SegmentSelector.class);
    when(selector.getKvt()).thenReturn(KVT);
    when(selector.getSegmentCount()).thenReturn(DEFAULT_CONFIG.getPartitionCount());
    when(selector.getAllTableSegments()).thenAnswer(arg -> IntStream.range(0, DEFAULT_CONFIG.getPartitionCount()).mapToObj(i -> mockSegment).collect(Collectors.toList()));
    val entryHelper = new TableEntryHelper(selector, DEFAULT_CONFIG);
    val b = new KeyValueTableIteratorImpl.Builder(DEFAULT_CONFIG, entryHelper, executorService()).maxIterationSize(maxIterationSize);
    // Everything up until here has been verified in the Builder unit tests (no need to do it again).
    // Create a Primary Key range iterator.
    val iterator = b.forRange(pk1, pk2);
    // Issue a Key iterator and then an Entry iterator, then collect all the results.
    val iteratorKeys = new ArrayList<TableKey>();
    iterator.keys().collectRemaining(ii -> iteratorKeys.addAll(ii.getItems())).join();
    val iteratorEntries = new ArrayList<TableEntry>();
    iterator.entries().collectRemaining(ii -> iteratorEntries.addAll(ii.getItems())).join();
    // Validate the results are as expected.
    Assert.assertEquals(allEntries.size() * DEFAULT_CONFIG.getPartitionCount(), iteratorKeys.size());
    Assert.assertEquals(allEntries.size() * DEFAULT_CONFIG.getPartitionCount(), iteratorEntries.size());
    for (int i = 0; i < allEntries.size(); i++) {
        val expected = allEntries.get(i);
        for (int p = 0; p < DEFAULT_CONFIG.getPartitionCount(); p++) {
            val actualKey = iteratorKeys.get(i * DEFAULT_CONFIG.getPartitionCount() + p);
            val actualEntry = iteratorEntries.get(i * DEFAULT_CONFIG.getPartitionCount() + p);
            Assert.assertEquals(Unpooled.wrappedBuffer(expected.getKey()), entryHelper.serializeKey(actualKey.getPrimaryKey(), actualKey.getSecondaryKey()));
            Assert.assertEquals(actualKey, actualEntry.getKey());
            Assert.assertEquals(expected.getValue(), actualEntry.getValue());
        }
    }
}