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

Example 41 with ScalarReader

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

the class TestScalarAccessors method testUInt1RW.

@Test
public void testUInt1RW() {
    TupleMetadata schema = new SchemaBuilder().add("col", MinorType.UINT1).buildSchema();
    SingleRowSet rs = fixture.rowSetBuilder(schema).addRow(0).addRow(0x7F).addRow(0xFF).build();
    assertEquals(3, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertEquals(ValueType.INTEGER, colReader.valueType());
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    assertEquals(0, colReader.getInt());
    assertTrue(reader.next());
    assertEquals(0x7F, colReader.getInt());
    assertEquals(0x7F, colReader.getObject());
    assertEquals(Integer.toString(0x7F), colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(0xFF, colReader.getInt());
    assertFalse(reader.next());
    rs.clear();
}

Example 42 with ScalarReader

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

the class TestScalarAccessors method testTinyIntRW.

@Test
public void testTinyIntRW() {
    TupleMetadata schema = new SchemaBuilder().add("col", MinorType.TINYINT).buildSchema();
    SingleRowSet rs = fixture.rowSetBuilder(schema).addRow(0).addRow(Byte.MAX_VALUE).addRow(Byte.MIN_VALUE).build();
    assertEquals(3, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertEquals(ValueType.INTEGER, colReader.valueType());
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    assertEquals(0, colReader.getInt());
    assertTrue(reader.next());
    assertEquals(Byte.MAX_VALUE, colReader.getInt());
    assertEquals((int) Byte.MAX_VALUE, colReader.getObject());
    assertEquals(Byte.toString(Byte.MAX_VALUE), colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(Byte.MIN_VALUE, colReader.getInt());
    assertFalse(reader.next());
    rs.clear();
}

Example 43 with ScalarReader

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

the class TestScalarAccessors method testVarBinaryRW.

@Test
public void testVarBinaryRW() {
    TupleMetadata schema = new SchemaBuilder().add("col", MinorType.VARBINARY).buildSchema();
    byte[] v1 = new byte[] {};
    byte[] v2 = new byte[] { (byte) 0x00, (byte) 0x7f, (byte) 0x80, (byte) 0xFF };
    SingleRowSet rs = fixture.rowSetBuilder(schema).addRow(v1).addRow(v2).build();
    assertEquals(2, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertEquals(ValueType.BYTES, colReader.valueType());
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    assertTrue(Arrays.equals(v1, colReader.getBytes()));
    assertTrue(reader.next());
    assertTrue(Arrays.equals(v2, colReader.getBytes()));
    assertTrue(Arrays.equals(v2, (byte[]) colReader.getObject()));
    assertEquals("[00, 7f, 80, ff]", colReader.getAsString());
    assertFalse(reader.next());
    rs.clear();
}

Example 44 with ScalarReader

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

the class TestScalarAccessors method nullableLongTester.

private void nullableLongTester(MinorType type) {
    TupleMetadata schema = new SchemaBuilder().addNullable("col", type).buildSchema();
    SingleRowSet rs = fixture.rowSetBuilder(schema).addRow(10L).addSingleCol(null).addRow(30L).build();
    assertEquals(3, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    assertEquals(10, colReader.getLong());
    assertTrue(reader.next());
    assertTrue(colReader.isNull());
    assertNull(colReader.getObject());
    assertEquals("null", colReader.getAsString());
    // Data value is undefined, may be garbage
    assertTrue(reader.next());
    assertEquals(30, colReader.getLong());
    assertFalse(reader.next());
    rs.clear();
}

Example 45 with ScalarReader

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

the class TestScalarAccessors method testIntervalRW.

@Test
public void testIntervalRW() {
    TupleMetadata schema = new SchemaBuilder().add("col", MinorType.INTERVAL).buildSchema();
    Period p1 = Period.days(0);
    Period p2 = Period.years(7).plusMonths(8).plusDays(3).plusHours(4).plusMinutes(5).plusSeconds(23);
    Period p3 = Period.years(9999).plusMonths(11).plusDays(365).plusHours(23).plusMinutes(59).plusSeconds(59);
    SingleRowSet rs = fixture.rowSetBuilder(schema).addRow(p1).addRow(p2).addRow(p3).build();
    assertEquals(3, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertEquals(ValueType.PERIOD, colReader.valueType());
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    // The normalizedStandard() call is a hack. See DRILL-5689.
    assertEquals(p1, colReader.getPeriod().normalizedStandard());
    assertTrue(reader.next());
    assertEquals(p2, colReader.getPeriod().normalizedStandard());
    assertEquals(p2, ((Period) colReader.getObject()).normalizedStandard());
    assertEquals(p2.toString(), colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(p3.normalizedStandard(), colReader.getPeriod().normalizedStandard());
    assertFalse(reader.next());
    rs.clear();
}