Examples with BigTableWriter org.apache.cassandra.io.sstable.format.big.BigTableWriter used on opensource projects

Example 1 with BigTableWriter

use of org.apache.cassandra.io.sstable.format.big.BigTableWriter in project cassandra by apache.

the class SSTableFlushObserverTest method testFlushObserver.

@Test
public void testFlushObserver() {
    TableMetadata cfm = TableMetadata.builder(KS_NAME, CF_NAME).addPartitionKeyColumn("id", UTF8Type.instance).addRegularColumn("first_name", UTF8Type.instance).addRegularColumn("age", Int32Type.instance).addRegularColumn("height", LongType.instance).build();
    LifecycleTransaction transaction = LifecycleTransaction.offline(OperationType.COMPACTION);
    FlushObserver observer = new FlushObserver();
    String sstableDirectory = DatabaseDescriptor.getAllDataFileLocations()[0];
    File directory = new File(sstableDirectory + File.pathSeparator + KS_NAME + File.pathSeparator + CF_NAME);
    directory.deleteOnExit();
    if (!directory.exists() && !directory.mkdirs())
        throw new FSWriteError(new IOException("failed to create tmp directory"), directory.getAbsolutePath());
    SSTableFormat.Type sstableFormat = SSTableFormat.Type.current();
    BigTableWriter writer = new BigTableWriter(new Descriptor(sstableFormat.info.getLatestVersion(), directory, KS_NAME, CF_NAME, 0, sstableFormat), 10L, 0L, null, TableMetadataRef.forOfflineTools(cfm), new MetadataCollector(cfm.comparator).sstableLevel(0), new SerializationHeader(true, cfm, cfm.regularAndStaticColumns(), EncodingStats.NO_STATS), Collections.singletonList(observer), transaction);
    SSTableReader reader = null;
    Multimap<ByteBuffer, Cell> expected = ArrayListMultimap.create();
    try {
        final long now = System.currentTimeMillis();
        ByteBuffer key = UTF8Type.instance.fromString("key1");
        expected.putAll(key, Arrays.asList(BufferCell.live(getColumn(cfm, "age"), now, Int32Type.instance.decompose(27)), BufferCell.live(getColumn(cfm, "first_name"), now, UTF8Type.instance.fromString("jack")), BufferCell.live(getColumn(cfm, "height"), now, LongType.instance.decompose(183L))));
        writer.append(new RowIterator(cfm, key.duplicate(), Collections.singletonList(buildRow(expected.get(key)))));
        key = UTF8Type.instance.fromString("key2");
        expected.putAll(key, Arrays.asList(BufferCell.live(getColumn(cfm, "age"), now, Int32Type.instance.decompose(30)), BufferCell.live(getColumn(cfm, "first_name"), now, UTF8Type.instance.fromString("jim")), BufferCell.live(getColumn(cfm, "height"), now, LongType.instance.decompose(180L))));
        writer.append(new RowIterator(cfm, key, Collections.singletonList(buildRow(expected.get(key)))));
        key = UTF8Type.instance.fromString("key3");
        expected.putAll(key, Arrays.asList(BufferCell.live(getColumn(cfm, "age"), now, Int32Type.instance.decompose(30)), BufferCell.live(getColumn(cfm, "first_name"), now, UTF8Type.instance.fromString("ken")), BufferCell.live(getColumn(cfm, "height"), now, LongType.instance.decompose(178L))));
        writer.append(new RowIterator(cfm, key, Collections.singletonList(buildRow(expected.get(key)))));
        reader = writer.finish(true);
    } finally {
        FileUtils.closeQuietly(writer);
    }
    Assert.assertTrue(observer.isComplete);
    Assert.assertEquals(expected.size(), observer.rows.size());
    for (Pair<ByteBuffer, Long> e : observer.rows.keySet()) {
        ByteBuffer key = e.left;
        Long indexPosition = e.right;
        try (FileDataInput index = reader.ifile.createReader(indexPosition)) {
            ByteBuffer indexKey = ByteBufferUtil.readWithShortLength(index);
            Assert.assertEquals(0, UTF8Type.instance.compare(key, indexKey));
        } catch (IOException ex) {
            throw new FSReadError(ex, reader.getIndexFilename());
        }
        Assert.assertEquals(expected.get(key), observer.rows.get(e));
    }
}