Examples with TupleReader org.apache.drill.exec.vector.accessor.TupleReader used on opensource projects

Example 1 with TupleReader

use of org.apache.drill.exec.vector.accessor.TupleReader in project drill by axbaretto.

the class TestResultSetLoaderMapArray method testOverwriteRow.

/**
 * Version of the {#link TestResultSetLoaderProtocol#testOverwriteRow()} test
 * that uses nested columns inside an array of maps. Here we must call
 * <tt>start()</tt> to reset the array back to the initial start position after
 * each "discard."
 */
@Test
public void testOverwriteRow() {
    TupleMetadata schema = new SchemaBuilder().add("a", MinorType.INT).addMapArray("m").add("b", MinorType.INT).add("c", MinorType.VARCHAR).resumeSchema().buildSchema();
    ResultSetLoaderImpl.ResultSetOptions options = new OptionBuilder().setSchema(schema).setRowCountLimit(ValueVector.MAX_ROW_COUNT).build();
    ResultSetLoader rsLoader = new ResultSetLoaderImpl(fixture.allocator(), options);
    RowSetLoader rootWriter = rsLoader.writer();
    // Can't use the shortcut to populate rows when doing overwrites.
    ScalarWriter aWriter = rootWriter.scalar("a");
    ArrayWriter maWriter = rootWriter.array("m");
    TupleWriter mWriter = maWriter.tuple();
    ScalarWriter bWriter = mWriter.scalar("b");
    ScalarWriter cWriter = mWriter.scalar("c");
    // Write 100,000 rows, overwriting 99% of them. This will cause vector
    // overflow and data corruption if overwrite does not work; but will happily
    // produce the correct result if everything works as it should.
    byte[] value = new byte[512];
    Arrays.fill(value, (byte) 'X');
    int count = 0;
    rsLoader.startBatch();
    while (count < 10_000) {
        rootWriter.start();
        count++;
        aWriter.setInt(count);
        for (int i = 0; i < 10; i++) {
            bWriter.setInt(count * 10 + i);
            cWriter.setBytes(value, value.length);
            maWriter.save();
        }
        if (count % 100 == 0) {
            rootWriter.save();
        }
    }
    // Verify using a reader.
    RowSet result = fixture.wrap(rsLoader.harvest());
    assertEquals(count / 100, result.rowCount());
    RowSetReader reader = result.reader();
    ArrayReader maReader = reader.array("m");
    TupleReader mReader = maReader.tuple();
    int rowId = 1;
    while (reader.next()) {
        assertEquals(rowId * 100, reader.scalar("a").getInt());
        assertEquals(10, maReader.size());
        for (int i = 0; i < 10; i++) {
            maReader.setPosn(i);
            assertEquals(rowId * 1000 + i, mReader.scalar("b").getInt());
            assertTrue(Arrays.equals(value, mReader.scalar("c").getBytes()));
        }
        rowId++;
    }
    result.clear();
    rsLoader.close();
}

Example 2 with TupleReader

use of org.apache.drill.exec.vector.accessor.TupleReader in project drill by axbaretto.

the class TestResultSetLoaderMaps method testOverwriteRow.

/**
 * Version of the {#link TestResultSetLoaderProtocol#testOverwriteRow()} test
 * that uses nested columns.
 */
@Test
public void testOverwriteRow() {
    TupleMetadata schema = new SchemaBuilder().add("a", MinorType.INT).addMap("m").add("b", MinorType.INT).add("c", MinorType.VARCHAR).resumeSchema().buildSchema();
    ResultSetLoaderImpl.ResultSetOptions options = new OptionBuilder().setSchema(schema).setRowCountLimit(ValueVector.MAX_ROW_COUNT).build();
    ResultSetLoader rsLoader = new ResultSetLoaderImpl(fixture.allocator(), options);
    RowSetLoader rootWriter = rsLoader.writer();
    // Can't use the shortcut to populate rows when doing overwrites.
    ScalarWriter aWriter = rootWriter.scalar("a");
    TupleWriter mWriter = rootWriter.tuple("m");
    ScalarWriter bWriter = mWriter.scalar("b");
    ScalarWriter cWriter = mWriter.scalar("c");
    // Write 100,000 rows, overwriting 99% of them. This will cause vector
    // overflow and data corruption if overwrite does not work; but will happily
    // produce the correct result if everything works as it should.
    byte[] value = new byte[512];
    Arrays.fill(value, (byte) 'X');
    int count = 0;
    rsLoader.startBatch();
    while (count < 100_000) {
        rootWriter.start();
        count++;
        aWriter.setInt(count);
        bWriter.setInt(count * 10);
        cWriter.setBytes(value, value.length);
        if (count % 100 == 0) {
            rootWriter.save();
        }
    }
    // Verify using a reader.
    RowSet result = fixture.wrap(rsLoader.harvest());
    assertEquals(count / 100, result.rowCount());
    RowSetReader reader = result.reader();
    TupleReader mReader = reader.tuple("m");
    int rowId = 1;
    while (reader.next()) {
        assertEquals(rowId * 100, reader.scalar("a").getInt());
        assertEquals(rowId * 1000, mReader.scalar("b").getInt());
        assertTrue(Arrays.equals(value, mReader.scalar("c").getBytes()));
        rowId++;
    }
    result.clear();
    rsLoader.close();
}

Example 3 with TupleReader

use of org.apache.drill.exec.vector.accessor.TupleReader in project drill by axbaretto.

the class RowSetTest method testMapStructure.

/**
 * Test a simple map structure at the top level of a row.
 *
 * @throws VectorOverflowException should never occur
 */
@Test
public void testMapStructure() {
    TupleMetadata schema = new SchemaBuilder().add("a", MinorType.INT).addMap("m").addArray("b", MinorType.INT).resumeSchema().buildSchema();
    ExtendableRowSet rowSet = fixture.rowSet(schema);
    RowSetWriter writer = rowSet.writer();
    // Map and Int
    // Test Invariants
    assertEquals(ObjectType.SCALAR, writer.column("a").type());
    assertEquals(ObjectType.SCALAR, writer.column(0).type());
    assertEquals(ObjectType.TUPLE, writer.column("m").type());
    assertEquals(ObjectType.TUPLE, writer.column(1).type());
    assertSame(writer.column(1).tuple(), writer.tuple(1));
    TupleWriter mapWriter = writer.column(1).tuple();
    assertEquals(ObjectType.SCALAR, mapWriter.column("b").array().entry().type());
    assertEquals(ObjectType.SCALAR, mapWriter.column("b").array().entryType());
    ScalarWriter aWriter = writer.column("a").scalar();
    ScalarWriter bWriter = writer.column("m").tuple().column("b").array().entry().scalar();
    assertSame(bWriter, writer.tuple(1).array(0).scalar());
    assertEquals(ValueType.INTEGER, bWriter.valueType());
    try {
        writer.column(1).scalar();
        fail();
    } catch (UnsupportedOperationException e) {
    // Expected
    }
    try {
        writer.column(1).array();
        fail();
    } catch (UnsupportedOperationException e) {
    // Expected
    }
    // Write data
    aWriter.setInt(10);
    bWriter.setInt(11);
    bWriter.setInt(12);
    writer.save();
    aWriter.setInt(20);
    bWriter.setInt(21);
    bWriter.setInt(22);
    writer.save();
    aWriter.setInt(30);
    bWriter.setInt(31);
    bWriter.setInt(32);
    writer.save();
    // Finish the row set and get a reader.
    SingleRowSet actual = writer.done();
    RowSetReader reader = actual.reader();
    assertEquals(ObjectType.SCALAR, reader.column("a").type());
    assertEquals(ObjectType.SCALAR, reader.column(0).type());
    assertEquals(ObjectType.TUPLE, reader.column("m").type());
    assertEquals(ObjectType.TUPLE, reader.column(1).type());
    assertSame(reader.column(1).tuple(), reader.tuple(1));
    ScalarReader aReader = reader.column(0).scalar();
    TupleReader mReader = reader.column(1).tuple();
    assertEquals(ObjectType.SCALAR, mReader.column("b").array().entryType());
    ScalarElementReader bReader = mReader.column(0).elements();
    assertEquals(ValueType.INTEGER, bReader.valueType());
    assertTrue(reader.next());
    assertEquals(10, aReader.getInt());
    assertEquals(11, bReader.getInt(0));
    assertEquals(12, bReader.getInt(1));
    assertTrue(reader.next());
    assertEquals(20, aReader.getInt());
    assertEquals(21, bReader.getInt(0));
    assertEquals(22, bReader.getInt(1));
    assertTrue(reader.next());
    assertEquals(30, aReader.getInt());
    assertEquals(31, bReader.getInt(0));
    assertEquals(32, bReader.getInt(1));
    assertFalse(reader.next());
    // Verify that the map accessor's value count was set.
    @SuppressWarnings("resource") MapVector mapVector = (MapVector) actual.container().getValueVector(1).getValueVector();
    assertEquals(actual.rowCount(), mapVector.getAccessor().getValueCount());
    SingleRowSet expected = fixture.rowSetBuilder(schema).addRow(10, objArray(intArray(11, 12))).addRow(20, objArray(intArray(21, 22))).addRow(30, objArray(intArray(31, 32))).build();
    new RowSetComparison(expected).verifyAndClearAll(actual);
}

Example 4 with TupleReader

use of org.apache.drill.exec.vector.accessor.TupleReader in project drill by axbaretto.

the class RowSetTest method testRepeatedMapStructure.

@Test
public void testRepeatedMapStructure() {
    TupleMetadata schema = new SchemaBuilder().add("a", MinorType.INT).addMapArray("m").add("b", MinorType.INT).add("c", MinorType.INT).resumeSchema().buildSchema();
    ExtendableRowSet rowSet = fixture.rowSet(schema);
    RowSetWriter writer = rowSet.writer();
    // Map and Int
    // Pick out components and lightly test. (Assumes structure
    // tested earlier is still valid, so no need to exhaustively
    // test again.)
    assertEquals(ObjectType.SCALAR, writer.column("a").type());
    assertEquals(ObjectType.ARRAY, writer.column("m").type());
    ArrayWriter maWriter = writer.column(1).array();
    assertEquals(ObjectType.TUPLE, maWriter.entryType());
    TupleWriter mapWriter = maWriter.tuple();
    assertEquals(ObjectType.SCALAR, mapWriter.column("b").type());
    assertEquals(ObjectType.SCALAR, mapWriter.column("c").type());
    ScalarWriter aWriter = writer.column("a").scalar();
    ScalarWriter bWriter = mapWriter.scalar("b");
    ScalarWriter cWriter = mapWriter.scalar("c");
    assertEquals(ValueType.INTEGER, aWriter.valueType());
    assertEquals(ValueType.INTEGER, bWriter.valueType());
    assertEquals(ValueType.INTEGER, cWriter.valueType());
    // Write data
    aWriter.setInt(10);
    bWriter.setInt(101);
    cWriter.setInt(102);
    // Advance to next array position
    maWriter.save();
    bWriter.setInt(111);
    cWriter.setInt(112);
    maWriter.save();
    writer.save();
    aWriter.setInt(20);
    bWriter.setInt(201);
    cWriter.setInt(202);
    maWriter.save();
    bWriter.setInt(211);
    cWriter.setInt(212);
    maWriter.save();
    writer.save();
    aWriter.setInt(30);
    bWriter.setInt(301);
    cWriter.setInt(302);
    maWriter.save();
    bWriter.setInt(311);
    cWriter.setInt(312);
    maWriter.save();
    writer.save();
    // Finish the row set and get a reader.
    SingleRowSet actual = writer.done();
    RowSetReader reader = actual.reader();
    // Verify reader structure
    assertEquals(ObjectType.SCALAR, reader.column("a").type());
    assertEquals(ObjectType.ARRAY, reader.column("m").type());
    ArrayReader maReader = reader.column(1).array();
    assertEquals(ObjectType.TUPLE, maReader.entryType());
    TupleReader mapReader = maReader.tuple();
    assertEquals(ObjectType.SCALAR, mapReader.column("b").type());
    assertEquals(ObjectType.SCALAR, mapReader.column("c").type());
    ScalarReader aReader = reader.column("a").scalar();
    ScalarReader bReader = mapReader.scalar("b");
    ScalarReader cReader = mapReader.scalar("c");
    assertEquals(ValueType.INTEGER, aReader.valueType());
    assertEquals(ValueType.INTEGER, bReader.valueType());
    assertEquals(ValueType.INTEGER, cReader.valueType());
    // Row 1: use index accessors
    assertTrue(reader.next());
    assertEquals(10, aReader.getInt());
    TupleReader ixReader = maReader.tuple(0);
    assertEquals(101, ixReader.scalar(0).getInt());
    assertEquals(102, ixReader.scalar(1).getInt());
    ixReader = maReader.tuple(1);
    assertEquals(111, ixReader.scalar(0).getInt());
    assertEquals(112, ixReader.scalar(1).getInt());
    // Row 2: use common accessor with explicit positioning,
    // but access scalars through the map reader.
    assertTrue(reader.next());
    assertEquals(20, aReader.getInt());
    maReader.setPosn(0);
    assertEquals(201, mapReader.scalar(0).getInt());
    assertEquals(202, mapReader.scalar(1).getInt());
    maReader.setPosn(1);
    assertEquals(211, mapReader.scalar(0).getInt());
    assertEquals(212, mapReader.scalar(1).getInt());
    // Row 3: use common accessor for scalars
    assertTrue(reader.next());
    assertEquals(30, aReader.getInt());
    maReader.setPosn(0);
    assertEquals(301, bReader.getInt());
    assertEquals(302, cReader.getInt());
    maReader.setPosn(1);
    assertEquals(311, bReader.getInt());
    assertEquals(312, cReader.getInt());
    assertFalse(reader.next());
    // Verify that the map accessor's value count was set.
    @SuppressWarnings("resource") RepeatedMapVector mapVector = (RepeatedMapVector) actual.container().getValueVector(1).getValueVector();
    assertEquals(3, mapVector.getAccessor().getValueCount());
    // Verify the readers and writers again using the testing tools.
    SingleRowSet expected = fixture.rowSetBuilder(schema).addRow(10, objArray(objArray(101, 102), objArray(111, 112))).addRow(20, objArray(objArray(201, 202), objArray(211, 212))).addRow(30, objArray(objArray(301, 302), objArray(311, 312))).build();
    new RowSetComparison(expected).verifyAndClearAll(actual);
}

Example 5 with TupleReader

use of org.apache.drill.exec.vector.accessor.TupleReader in project drill by apache.

the class TestResultSetLoaderMapArray method testOmittedValues.

/**
 * Check that the "fill-empties" logic descends down into
 * a repeated map.
 */
@Test
public void testOmittedValues() {
    TupleMetadata schema = new SchemaBuilder().add("id", MinorType.INT).addMapArray("m").addNullable("a", MinorType.INT).addNullable("b", MinorType.VARCHAR).resumeSchema().buildSchema();
    ResultSetLoaderImpl.ResultSetOptions options = new ResultSetOptionBuilder().readerSchema(schema).rowCountLimit(ValueVector.MAX_ROW_COUNT).build();
    ResultSetLoader rsLoader = new ResultSetLoaderImpl(fixture.allocator(), options);
    RowSetLoader rootWriter = rsLoader.writer();
    int mapSkip = 5;
    int entrySkip = 3;
    int rowCount = 1000;
    int entryCount = 10;
    rsLoader.startBatch();
    ArrayWriter maWriter = rootWriter.array("m");
    TupleWriter mWriter = maWriter.tuple();
    for (int i = 0; i < rowCount; i++) {
        rootWriter.start();
        rootWriter.scalar(0).setInt(i);
        if (i % mapSkip != 0) {
            for (int j = 0; j < entryCount; j++) {
                if (j % entrySkip != 0) {
                    mWriter.scalar(0).setInt(i * entryCount + j);
                    mWriter.scalar(1).setString("b-" + i + "." + j);
                }
                maWriter.save();
            }
        }
        rootWriter.save();
    }
    RowSet result = fixture.wrap(rsLoader.harvest());
    assertEquals(rowCount, result.rowCount());
    RowSetReader reader = result.reader();
    ArrayReader maReader = reader.array("m");
    TupleReader mReader = maReader.tuple();
    for (int i = 0; i < rowCount; i++) {
        assertTrue(reader.next());
        assertEquals(i, reader.scalar(0).getInt());
        if (i % mapSkip == 0) {
            assertEquals(0, maReader.size());
            continue;
        }
        assertEquals(entryCount, maReader.size());
        for (int j = 0; j < entryCount; j++) {
            assertTrue(maReader.next());
            if (j % entrySkip == 0) {
                assertTrue(mReader.scalar(0).isNull());
                assertTrue(mReader.scalar(1).isNull());
            } else {
                assertFalse(mReader.scalar(0).isNull());
                assertFalse(mReader.scalar(1).isNull());
                assertEquals(i * entryCount + j, mReader.scalar(0).getInt());
                assertEquals("b-" + i + "." + j, mReader.scalar(1).getString());
            }
        }
    }
    result.clear();
    rsLoader.close();
}