Examples with KvInnerSortFlusher com.baidu.hugegraph.computer.core.sort.flusher.KvInnerSortFlusher used on opensource projects

Example 1 with KvInnerSortFlusher

use of com.baidu.hugegraph.computer.core.sort.flusher.KvInnerSortFlusher in project hugegraph-computer by hugegraph.

the class SortManager method createSortFlusher.

private InnerSortFlusher createSortFlusher(MessageType type, RandomAccessOutput output, int flushThreshold) {
    PointerCombiner combiner;
    boolean needSortSubKv;
    switch(type) {
        case VERTEX:
            combiner = new VertexValueCombiner(this.context);
            needSortSubKv = false;
            break;
        case EDGE:
            combiner = new EdgeValueCombiner(this.context);
            needSortSubKv = true;
            break;
        case MSG:
            combiner = this.createMessageCombiner();
            needSortSubKv = false;
            break;
        default:
            throw new ComputerException("Unsupported combine message " + "type for %s", type);
    }
    InnerSortFlusher flusher;
    if (combiner == null) {
        flusher = new KvInnerSortFlusher(output);
    } else {
        if (needSortSubKv) {
            flusher = new CombineSubKvInnerSortFlusher(output, combiner, flushThreshold);
        } else {
            flusher = new CombineKvInnerSortFlusher(output, combiner);
        }
    }
    return flusher;
}

Example 2 with KvInnerSortFlusher

use of com.baidu.hugegraph.computer.core.sort.flusher.KvInnerSortFlusher in project hugegraph-computer by hugegraph.

the class FlusherTest method testKvInnerSortFlusher.

@Test
public void testKvInnerSortFlusher() throws Exception {
    List<Integer> map = ImmutableList.of(2, 1, 3, 1, 2, 1, 4, 1);
    BytesInput input = SorterTestUtil.inputFromKvMap(map);
    BytesOutput output = IOFactory.createBytesOutput(Constants.SMALL_BUF_SIZE);
    Sorter sorter = SorterTestUtil.createSorter(CONFIG);
    sorter.sortBuffer(input, new KvInnerSortFlusher(output), false);
    BytesInput result = EntriesUtil.inputFromOutput(output);
    EntryIterator iter = new KvEntriesInput(result);
    SorterTestUtil.assertKvEntry(iter.next(), 2, 1);
    SorterTestUtil.assertKvEntry(iter.next(), 2, 1);
    SorterTestUtil.assertKvEntry(iter.next(), 3, 1);
    SorterTestUtil.assertKvEntry(iter.next(), 4, 1);
    iter.close();
}

Example 3 with KvInnerSortFlusher

use of com.baidu.hugegraph.computer.core.sort.flusher.KvInnerSortFlusher in project hugegraph-computer by hugegraph.

the class FlusherTest method testExceptionCaseForFlusher.

@Test
public void testExceptionCaseForFlusher() {
    BytesOutput output = IOFactory.createBytesOutput(Constants.SMALL_BUF_SIZE);
    InnerSortFlusher flusher = new KvInnerSortFlusher(output);
    List<KvEntry> entries = new ArrayList<>();
    Assert.assertThrows(IllegalArgumentException.class, () -> {
        flusher.flush(entries.iterator());
    }, e -> {
        String errorMsg = "Parameter entries can't be empty";
        Assert.assertContains(errorMsg, e.getMessage());
    });
}