Examples with DefaultKvEntry com.baidu.hugegraph.computer.core.store.entry.DefaultKvEntry used on opensource projects

Example 1 with DefaultKvEntry

use of com.baidu.hugegraph.computer.core.store.entry.DefaultKvEntry in project hugegraph-computer by hugegraph.

the class CombinableSorterFlusher method flush.

public void flush(Iterator<KvEntry> entries) throws IOException {
    E.checkArgument(entries.hasNext(), "Parameter entries can't be empty");
    KvEntry last = entries.next();
    Pointer combineValue = last.value();
    while (true) {
        KvEntry current = null;
        if (entries.hasNext()) {
            current = entries.next();
            if (last.compareTo(current) == 0) {
                combineValue = this.combiner.combine(combineValue, current.value());
                continue;
            }
        }
        this.writeKvEntry(new DefaultKvEntry(last.key(), combineValue));
        if (current == null) {
            break;
        }
        last = current;
        combineValue = last.value();
    }
}

Example 2 with DefaultKvEntry

use of com.baidu.hugegraph.computer.core.store.entry.DefaultKvEntry in project hugegraph-computer by hugegraph.

the class SortLargeDataTest method testDiffNumEntriesFileMerge.

@Test
public void testDiffNumEntriesFileMerge() throws Exception {
    Config config = UnitTestBase.updateWithRequiredOptions(ComputerOptions.HGKV_MERGE_FILES_NUM, "3", ComputerOptions.TRANSPORT_RECV_FILE_MODE, "false");
    List<Integer> sizeList = ImmutableList.of(200, 500, 20, 50, 300, 250, 10, 33, 900, 89, 20);
    List<String> inputs = new ArrayList<>();
    for (int j = 0; j < sizeList.size(); j++) {
        String file = StoreTestUtil.availablePathById(j + 10);
        inputs.add(file);
        try (KvEntryFileWriter builder = new HgkvDirBuilderImpl(config, file)) {
            for (int i = 0; i < sizeList.get(j); i++) {
                byte[] keyBytes = StoreTestUtil.intToByteArray(i);
                byte[] valueBytes = StoreTestUtil.intToByteArray(1);
                Pointer key = new InlinePointer(keyBytes);
                Pointer value = new InlinePointer(valueBytes);
                KvEntry entry = new DefaultKvEntry(key, value);
                builder.write(entry);
            }
        }
    }
    List<String> outputs = ImmutableList.of(StoreTestUtil.availablePathById(0), StoreTestUtil.availablePathById(1), StoreTestUtil.availablePathById(2), StoreTestUtil.availablePathById(3));
    Sorter sorter = SorterTestUtil.createSorter(config);
    sorter.mergeInputs(inputs, new KvOuterSortFlusher(), outputs, false);
    int total = sizeList.stream().mapToInt(i -> i).sum();
    int mergeTotal = 0;
    for (String output : outputs) {
        mergeTotal += HgkvDirImpl.open(output).numEntries();
    }
    Assert.assertEquals(total, mergeTotal);
}