Examples with RowPagesBuilder com.facebook.presto.RowPagesBuilder used on opensource projects

Example 51 with RowPagesBuilder

use of com.facebook.presto.RowPagesBuilder in project presto by prestodb.

the class TestShardWriter method testWriter.

@Test
public void testWriter() throws Exception {
    List<Long> columnIds = ImmutableList.of(1L, 2L, 4L, 6L, 7L, 8L, 9L, 10L);
    ArrayType arrayType = new ArrayType(BIGINT);
    ArrayType arrayOfArrayType = new ArrayType(arrayType);
    MapType mapType = new MapType(createVarcharType(10), BOOLEAN);
    List<Type> columnTypes = ImmutableList.of(BIGINT, createVarcharType(10), VARBINARY, DOUBLE, BOOLEAN, arrayType, mapType, arrayOfArrayType);
    File file = new File(directory, System.nanoTime() + ".orc");
    byte[] bytes1 = octets(0x00, 0xFE, 0xFF);
    byte[] bytes3 = octets(0x01, 0x02, 0x19, 0x80);
    RowPagesBuilder rowPagesBuilder = RowPagesBuilder.rowPagesBuilder(columnTypes).row(123L, "hello", wrappedBuffer(bytes1), 123.456, true, arrayBlockOf(BIGINT, 1, 2), mapBlockOf(createVarcharType(5), BOOLEAN, "k1", true), arrayBlockOf(arrayType, arrayBlockOf(BIGINT, 5))).row(null, "world", null, Double.POSITIVE_INFINITY, null, arrayBlockOf(BIGINT, 3, null), mapBlockOf(createVarcharType(5), BOOLEAN, "k2", null), arrayBlockOf(arrayType, null, arrayBlockOf(BIGINT, 6, 7))).row(456L, "bye ☃", wrappedBuffer(bytes3), Double.NaN, false, arrayBlockOf(BIGINT), mapBlockOf(createVarcharType(5), BOOLEAN, "k3", false), arrayBlockOf(arrayType, arrayBlockOf(BIGINT)));
    try (ThreadContextClassLoader ignored = new ThreadContextClassLoader(new EmptyClassLoader());
        OrcFileWriter writer = new OrcFileWriter(columnIds, columnTypes, file)) {
        writer.appendPages(rowPagesBuilder.build());
    }
    try (OrcDataSource dataSource = fileOrcDataSource(file)) {
        OrcRecordReader reader = createReader(dataSource, columnIds, columnTypes);
        assertEquals(reader.getReaderRowCount(), 3);
        assertEquals(reader.getReaderPosition(), 0);
        assertEquals(reader.getFileRowCount(), reader.getReaderRowCount());
        assertEquals(reader.getFilePosition(), reader.getFilePosition());
        assertEquals(reader.nextBatch(), 3);
        assertEquals(reader.getReaderPosition(), 0);
        assertEquals(reader.getFilePosition(), reader.getFilePosition());
        Block column0 = reader.readBlock(BIGINT, 0);
        assertEquals(column0.isNull(0), false);
        assertEquals(column0.isNull(1), true);
        assertEquals(column0.isNull(2), false);
        assertEquals(BIGINT.getLong(column0, 0), 123L);
        assertEquals(BIGINT.getLong(column0, 2), 456L);
        Block column1 = reader.readBlock(createVarcharType(10), 1);
        assertEquals(createVarcharType(10).getSlice(column1, 0), utf8Slice("hello"));
        assertEquals(createVarcharType(10).getSlice(column1, 1), utf8Slice("world"));
        assertEquals(createVarcharType(10).getSlice(column1, 2), utf8Slice("bye ☃"));
        Block column2 = reader.readBlock(VARBINARY, 2);
        assertEquals(VARBINARY.getSlice(column2, 0), wrappedBuffer(bytes1));
        assertEquals(column2.isNull(1), true);
        assertEquals(VARBINARY.getSlice(column2, 2), wrappedBuffer(bytes3));
        Block column3 = reader.readBlock(DOUBLE, 3);
        assertEquals(column3.isNull(0), false);
        assertEquals(column3.isNull(1), false);
        assertEquals(column3.isNull(2), false);
        assertEquals(DOUBLE.getDouble(column3, 0), 123.456);
        assertEquals(DOUBLE.getDouble(column3, 1), Double.POSITIVE_INFINITY);
        assertEquals(DOUBLE.getDouble(column3, 2), Double.NaN);
        Block column4 = reader.readBlock(BOOLEAN, 4);
        assertEquals(column4.isNull(0), false);
        assertEquals(column4.isNull(1), true);
        assertEquals(column4.isNull(2), false);
        assertEquals(BOOLEAN.getBoolean(column4, 0), true);
        assertEquals(BOOLEAN.getBoolean(column4, 2), false);
        Block column5 = reader.readBlock(arrayType, 5);
        assertEquals(column5.getPositionCount(), 3);
        assertTrue(arrayBlocksEqual(BIGINT, arrayType.getObject(column5, 0), arrayBlockOf(BIGINT, 1, 2)));
        assertTrue(arrayBlocksEqual(BIGINT, arrayType.getObject(column5, 1), arrayBlockOf(BIGINT, 3, null)));
        assertTrue(arrayBlocksEqual(BIGINT, arrayType.getObject(column5, 2), arrayBlockOf(BIGINT)));
        Block column6 = reader.readBlock(mapType, 6);
        assertEquals(column6.getPositionCount(), 3);
        assertTrue(mapBlocksEqual(createVarcharType(5), BOOLEAN, arrayType.getObject(column6, 0), mapBlockOf(createVarcharType(5), BOOLEAN, "k1", true)));
        assertTrue(mapBlocksEqual(createVarcharType(5), BOOLEAN, arrayType.getObject(column6, 1), mapBlockOf(createVarcharType(5), BOOLEAN, "k2", null)));
        assertTrue(mapBlocksEqual(createVarcharType(5), BOOLEAN, arrayType.getObject(column6, 2), mapBlockOf(createVarcharType(5), BOOLEAN, "k3", false)));
        Block column7 = reader.readBlock(arrayOfArrayType, 7);
        assertEquals(column7.getPositionCount(), 3);
        assertTrue(arrayBlocksEqual(arrayType, arrayOfArrayType.getObject(column7, 0), arrayBlockOf(arrayType, arrayBlockOf(BIGINT, 5))));
        assertTrue(arrayBlocksEqual(arrayType, arrayOfArrayType.getObject(column7, 1), arrayBlockOf(arrayType, null, arrayBlockOf(BIGINT, 6, 7))));
        assertTrue(arrayBlocksEqual(arrayType, arrayOfArrayType.getObject(column7, 2), arrayBlockOf(arrayType, arrayBlockOf(BIGINT))));
        assertEquals(reader.nextBatch(), -1);
        assertEquals(reader.getReaderPosition(), 3);
        assertEquals(reader.getFilePosition(), reader.getFilePosition());
        OrcFileMetadata orcFileMetadata = METADATA_CODEC.fromJson(reader.getUserMetadata().get(OrcFileMetadata.KEY).getBytes());
        assertEquals(orcFileMetadata, new OrcFileMetadata(ImmutableMap.<Long, TypeSignature>builder().put(1L, BIGINT.getTypeSignature()).put(2L, createVarcharType(10).getTypeSignature()).put(4L, VARBINARY.getTypeSignature()).put(6L, DOUBLE.getTypeSignature()).put(7L, BOOLEAN.getTypeSignature()).put(8L, arrayType.getTypeSignature()).put(9L, mapType.getTypeSignature()).put(10L, arrayOfArrayType.getTypeSignature()).build()));
    }
    File crcFile = new File(file.getParentFile(), "." + file.getName() + ".crc");
    assertFalse(crcFile.exists());
}