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

Example 91 with ScalarReader

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

the class TestFillEmpties method testBitFillEmpties.

/**
 * Bit vector is special; packs 8 values per byte. Use custom
 * logic to ship entire bytes.
 */
@Test
public void testBitFillEmpties() {
    TupleMetadata schema = new SchemaBuilder().add("a", MinorType.BIT).buildSchema();
    ExtendableRowSet rs = fixture.rowSet(schema);
    RowSetWriter writer = rs.writer();
    ScalarWriter colWriter = writer.scalar(0);
    for (int i = 0; i < ROW_COUNT; i++) {
        if (i % 43 == 0) {
            colWriter.setInt(1);
        }
        writer.save();
    }
    SingleRowSet result = writer.done();
    RowSetReader reader = result.reader();
    ScalarReader colReader = reader.scalar(0);
    for (int i = 0; i < ROW_COUNT; i++) {
        assertTrue(reader.next());
        assertEquals(i % 43 == 0 ? 1 : 0, colReader.getInt());
    }
    result.clear();
}

Example 92 with ScalarReader

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

the class TestFillEmpties method doFillEmptiesScalar.

private void doFillEmptiesScalar(MajorType majorType) {
    TupleMetadata schema = new SchemaBuilder().add("a", majorType).buildSchema();
    ExtendableRowSet rs = fixture.rowSet(schema);
    RowSetWriter writer = rs.writer();
    ScalarWriter colWriter = writer.scalar(0);
    ValueType valueType = colWriter.valueType();
    boolean nullable = majorType.getMode() == DataMode.OPTIONAL;
    for (int i = 0; i < ROW_COUNT; i++) {
        if (i % 5 == 0) {
            colWriter.setObject(RowSetUtilities.testDataFromInt(valueType, majorType, i));
        }
        writer.save();
    }
    SingleRowSet result = writer.done();
    RowSetReader reader = result.reader();
    ScalarReader colReader = reader.scalar(0);
    MinorType type = majorType.getMinorType();
    boolean isVariable = Types.isVarWidthType(type);
    for (int i = 0; i < ROW_COUNT; i++) {
        assertTrue(reader.next());
        if (i % 5 != 0) {
            if (nullable) {
                // Nullable types fill with nulls.
                assertTrue(colReader.isNull());
                continue;
            }
            if (isVariable) {
                // Variable width types fill with a zero-length value.
                assertEquals(0, colReader.getBytes().length);
                continue;
            }
        }
        // All other types fill with zero-bytes, interpreted as some form
        // of zero for each type.
        Object actual = colReader.getObject();
        Object expected = RowSetUtilities.testDataFromInt(valueType, majorType, i % 5 == 0 ? i : 0);
        RowSetUtilities.assertEqualValues(majorType.toString().replace('\n', ' ') + "[" + i + "]", valueType, expected, actual);
    }
    result.clear();
}

Example 93 with ScalarReader

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

the class TestRowSet method testRepeatedDictStructure.

@Test
public void testRepeatedDictStructure() {
    final String dictName = "d";
    final TupleMetadata schema = new SchemaBuilder().add("id", MinorType.INT).addDictArray(dictName, MinorType.FLOAT8).value(MinorType.VARCHAR).resumeSchema().buildSchema();
    final ExtendableRowSet rowSet = fixture.rowSet(schema);
    final RowSetWriter writer = rowSet.writer();
    // Repeated dict
    assertEquals(ObjectType.ARRAY, writer.column(dictName).type());
    final ScalarWriter idWriter = writer.scalar(0);
    final ArrayWriter dictArrayWriter = writer.column(1).array();
    assertEquals(ObjectType.ARRAY, dictArrayWriter.entryType());
    DictWriter dictWriter = dictArrayWriter.dict();
    assertEquals(ValueType.DOUBLE, dictWriter.keyType());
    assertEquals(ObjectType.SCALAR, dictWriter.valueType());
    final ScalarWriter keyWriter = dictWriter.keyWriter();
    final ScalarWriter valueWriter = dictWriter.valueWriter().scalar();
    assertEquals(ValueType.DOUBLE, keyWriter.valueType());
    assertEquals(ValueType.STRING, valueWriter.valueType());
    // Write data
    idWriter.setInt(1);
    keyWriter.setDouble(1);
    valueWriter.setString("a");
    // advance to next entry position
    dictWriter.save();
    keyWriter.setDouble(2);
    valueWriter.setString("b");
    dictWriter.save();
    // advance to next array position
    dictArrayWriter.save();
    keyWriter.setDouble(3);
    valueWriter.setString("c");
    dictWriter.save();
    dictArrayWriter.save();
    // advance to next row
    writer.save();
    idWriter.setInt(2);
    keyWriter.setDouble(11);
    valueWriter.setString("d");
    dictWriter.save();
    keyWriter.setDouble(12);
    valueWriter.setString("e");
    dictWriter.save();
    dictArrayWriter.save();
    writer.save();
    idWriter.setInt(3);
    keyWriter.setDouble(21);
    valueWriter.setString("f");
    dictWriter.save();
    keyWriter.setDouble(22);
    valueWriter.setString("g");
    dictWriter.save();
    keyWriter.setDouble(23);
    valueWriter.setString("h");
    dictWriter.save();
    dictArrayWriter.save();
    keyWriter.setDouble(24);
    valueWriter.setString("i");
    dictWriter.save();
    keyWriter.setDouble(25);
    valueWriter.setString("j");
    dictWriter.save();
    keyWriter.setDouble(26.5);
    valueWriter.setString("k");
    dictWriter.save();
    keyWriter.setDouble(27);
    valueWriter.setString("l");
    dictWriter.save();
    keyWriter.setDouble(28);
    valueWriter.setString("m");
    dictWriter.save();
    dictArrayWriter.save();
    writer.save();
    // Finish the row set and get a reader.
    final SingleRowSet actual = writer.done();
    final RowSetReader reader = actual.reader();
    // Verify reader structure
    assertEquals(ObjectType.ARRAY, reader.column(dictName).type());
    final ArrayReader dictArrayReader = reader.array(1);
    assertEquals(ObjectType.ARRAY, dictArrayReader.entryType());
    final DictReader dictReader = dictArrayReader.entry().dict();
    assertEquals(ValueType.DOUBLE, dictReader.keyColumnType());
    assertEquals(ObjectType.SCALAR, dictReader.valueColumnType());
    final KeyAccessor keyAccessor = dictReader.keyAccessor();
    final ScalarReader valueReader = dictReader.valueReader().scalar();
    // Row 1
    assertTrue(reader.next());
    // array is not null
    assertFalse(dictArrayReader.isNull());
    assertTrue(dictArrayReader.next());
    // first dict is not null
    assertFalse(dictArrayReader.isNull());
    assertTrue(keyAccessor.find(2.0f));
    assertEquals("b", valueReader.getObject());
    assertTrue(keyAccessor.find(1.0f));
    assertEquals("a", valueReader.getObject());
    // no entry for given key
    assertFalse(keyAccessor.find(1.1f));
    assertTrue(dictArrayReader.next());
    assertTrue(keyAccessor.find(3.0f));
    assertEquals("c", valueReader.getObject());
    assertFalse(keyAccessor.find(1.0f));
    assertEquals(Arrays.asList(map(1.0, "a", 2.0, "b"), map(3.0, "c")), dictArrayReader.getObject());
    // Row 2
    assertTrue(reader.next());
    assertTrue(dictArrayReader.next());
    assertTrue(keyAccessor.find(11.0f));
    assertEquals("d", valueReader.getString());
    assertFalse(keyAccessor.find(1.0f));
    assertTrue(keyAccessor.find(12.0f));
    assertEquals("e", valueReader.getString());
    // Row 3: use explicit positioning
    assertTrue(reader.next());
    dictArrayReader.setPosn(1);
    assertTrue(keyAccessor.find(24.0f));
    assertEquals("i", valueReader.getString());
    assertTrue(keyAccessor.find(26.5f));
    assertEquals("k", valueReader.getString());
    assertTrue(keyAccessor.find(28.0f));
    assertEquals("m", valueReader.getString());
    assertFalse(keyAccessor.find(35.0f));
    assertTrue(keyAccessor.find(27.0f));
    assertEquals("l", valueReader.getString());
    Map<Object, Object> element1 = map(24.0, "i", 25.0, "j", 26.5, "k", 27.0, "l", 28.0, "m");
    assertEquals(element1, dictReader.getObject());
    dictArrayReader.setPosn(0);
    assertTrue(keyAccessor.find(23.0f));
    assertEquals("h", valueReader.getObject());
    assertTrue(keyAccessor.find(21.0f));
    assertEquals("f", valueReader.getObject());
    assertFalse(keyAccessor.find(23.05f));
    Map<Object, Object> element0 = map(21.0, "f", 22.0, "g", 23.0, "h");
    assertEquals(element0, dictReader.getObject());
    assertEquals(Arrays.asList(element0, element1), dictArrayReader.getObject());
    assertFalse(reader.next());
    // Verify that the dict accessor's value count was set.
    final RepeatedDictVector vector = (RepeatedDictVector) actual.container().getValueVector(1).getValueVector();
    assertEquals(3, vector.getAccessor().getValueCount());
    final SingleRowSet expected = fixture.rowSetBuilder(schema).addRow(1, objArray(map(1.0f, "a", 2.0f, "b"), map(3.0f, "c"))).addRow(2, objArray(singleObjArray(map(11.0f, "d", 12.0f, "e")))).addRow(3, objArray(map(21.0f, "f", 22.0f, "g", 23.0f, "h"), map(24.0f, "i", 25.0f, "j", 26.5f, "k", 27.0f, "l", 28.0f, "m"))).build();
    RowSetUtilities.verify(expected, actual);
}

Example 94 with ScalarReader

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

the class TestRowSet method testMapStructure.

/**
 * Test a simple map structure at the top level of a row.
 *
 * @throws VectorOverflowException should never occur
 */
@Test
public void testMapStructure() {
    final TupleMetadata schema = new SchemaBuilder().add("a", MinorType.INT).addMap("m").addArray("b", MinorType.INT).resumeSchema().buildSchema();
    final ExtendableRowSet rowSet = fixture.rowSet(schema);
    final 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));
    final TupleWriter mapWriter = writer.column(1).tuple();
    assertEquals(ObjectType.SCALAR, mapWriter.column("b").array().entry().type());
    assertEquals(ObjectType.SCALAR, mapWriter.column("b").array().entryType());
    final ScalarWriter aWriter = writer.column("a").scalar();
    final 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 (final UnsupportedOperationException e) {
    // Expected
    }
    try {
        writer.column(1).array();
        fail();
    } catch (final 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.
    final SingleRowSet actual = writer.done();
    final 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));
    final ScalarReader aReader = reader.column(0).scalar();
    final TupleReader mReader = reader.column(1).tuple();
    final ArrayReader bArray = mReader.column("b").array();
    assertEquals(ObjectType.SCALAR, bArray.entryType());
    final ScalarReader bReader = bArray.scalar();
    assertEquals(ValueType.INTEGER, bReader.valueType());
    // Row 1: (10, {[11, 12]})
    assertTrue(reader.next());
    assertEquals(10, aReader.getInt());
    assertFalse(mReader.isNull());
    assertTrue(bArray.next());
    assertFalse(bReader.isNull());
    assertEquals(11, bReader.getInt());
    assertTrue(bArray.next());
    assertFalse(bReader.isNull());
    assertEquals(12, bReader.getInt());
    assertFalse(bArray.next());
    // Row 2: (20, {[21, 22]})
    assertTrue(reader.next());
    assertEquals(20, aReader.getInt());
    assertFalse(mReader.isNull());
    assertTrue(bArray.next());
    assertEquals(21, bReader.getInt());
    assertTrue(bArray.next());
    assertEquals(22, bReader.getInt());
    // Row 3: (30, {[31, 32]})
    assertTrue(reader.next());
    assertEquals(30, aReader.getInt());
    assertFalse(mReader.isNull());
    assertTrue(bArray.next());
    assertEquals(31, bReader.getInt());
    assertTrue(bArray.next());
    assertEquals(32, bReader.getInt());
    assertFalse(reader.next());
    // Verify that the map accessor's value count was set.
    final MapVector mapVector = (MapVector) actual.container().getValueVector(1).getValueVector();
    assertEquals(actual.rowCount(), mapVector.getAccessor().getValueCount());
    final SingleRowSet expected = fixture.rowSetBuilder(schema).addRow(10, objArray(intArray(11, 12))).addRow(20, objArray(intArray(21, 22))).addRow(30, objArray(intArray(31, 32))).build();
    RowSetUtilities.verify(expected, actual);
}

Example 95 with ScalarReader

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

the class TestRowSet method testRepeatedMapStructure.

@Test
public void testRepeatedMapStructure() {
    final TupleMetadata schema = new SchemaBuilder().add("a", MinorType.INT).addMapArray("m").add("b", MinorType.INT).add("c", MinorType.INT).resumeSchema().buildSchema();
    final ExtendableRowSet rowSet = fixture.rowSet(schema);
    final 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());
    final ArrayWriter maWriter = writer.column(1).array();
    assertEquals(ObjectType.TUPLE, maWriter.entryType());
    final TupleWriter mapWriter = maWriter.tuple();
    assertEquals(ObjectType.SCALAR, mapWriter.column("b").type());
    assertEquals(ObjectType.SCALAR, mapWriter.column("c").type());
    final ScalarWriter aWriter = writer.column("a").scalar();
    final ScalarWriter bWriter = mapWriter.scalar("b");
    final 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.
    final SingleRowSet actual = writer.done();
    final RowSetReader reader = actual.reader();
    // Verify reader structure
    assertEquals(ObjectType.SCALAR, reader.column("a").type());
    assertEquals(ObjectType.ARRAY, reader.column("m").type());
    final ArrayReader maReader = reader.column(1).array();
    assertEquals(ObjectType.TUPLE, maReader.entryType());
    final TupleReader mapReader = maReader.tuple();
    assertEquals(ObjectType.SCALAR, mapReader.column("b").type());
    assertEquals(ObjectType.SCALAR, mapReader.column("c").type());
    final ScalarReader aReader = reader.column("a").scalar();
    final ScalarReader bReader = mapReader.scalar("b");
    final ScalarReader cReader = mapReader.scalar("c");
    assertEquals(ValueType.INTEGER, aReader.valueType());
    assertEquals(ValueType.INTEGER, bReader.valueType());
    assertEquals(ValueType.INTEGER, cReader.valueType());
    // Row 1: Use iterator-like accessors
    assertTrue(reader.next());
    assertEquals(10, aReader.getInt());
    // Array itself is not null
    assertFalse(maReader.isNull());
    assertTrue(maReader.next());
    // Tuple 0 is not null
    assertFalse(mapReader.isNull());
    assertEquals(101, mapReader.scalar(0).getInt());
    assertEquals(102, mapReader.scalar(1).getInt());
    assertTrue(maReader.next());
    assertEquals(111, mapReader.scalar(0).getInt());
    assertEquals(112, mapReader.scalar(1).getInt());
    // Row 2: use 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 scalar accessor
    assertTrue(reader.next());
    assertEquals(30, aReader.getInt());
    assertTrue(maReader.next());
    assertEquals(301, bReader.getInt());
    assertEquals(302, cReader.getInt());
    assertTrue(maReader.next());
    assertEquals(311, bReader.getInt());
    assertEquals(312, cReader.getInt());
    assertFalse(reader.next());
    // Verify that the map accessor's value count was set.
    final RepeatedMapVector mapVector = (RepeatedMapVector) actual.container().getValueVector(1).getValueVector();
    assertEquals(3, mapVector.getAccessor().getValueCount());
    // Verify the readers and writers again using the testing tools.
    final 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();
    RowSetUtilities.verify(expected, actual);
}