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

Example 61 with ScalarReader

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

the class TestScalarAccessors method testFloatRW.

@Test
public void testFloatRW() {
    BatchSchema batchSchema = new SchemaBuilder().add("col", MinorType.FLOAT4).build();
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).addRow(0F).addRow(Float.MAX_VALUE).addRow(Float.MIN_VALUE).addRow(100F).build();
    assertEquals(4, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertEquals(ValueType.DOUBLE, colReader.valueType());
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    assertEquals(0, colReader.getDouble(), 0.000001);
    assertTrue(reader.next());
    assertEquals(Float.MAX_VALUE, colReader.getDouble(), 0.000001);
    assertEquals((double) Float.MAX_VALUE, (double) colReader.getObject(), 0.000001);
    assertTrue(reader.next());
    assertEquals(Float.MIN_VALUE, colReader.getDouble(), 0.000001);
    assertTrue(reader.next());
    assertEquals(100, colReader.getDouble(), 0.000001);
    assertEquals("100.0", colReader.getAsString());
    assertFalse(reader.next());
    rs.clear();
}

Example 62 with ScalarReader

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

the class TestScalarAccessors method testNullableInterval.

@Test
public void testNullableInterval() {
    BatchSchema batchSchema = new SchemaBuilder().addNullable("col", MinorType.INTERVAL).build();
    Period p1 = Period.years(0);
    Period p2 = Period.years(7).plusMonths(8).plusDays(3).plusHours(4).plusMinutes(5).plusSeconds(23);
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).addRow(p1).addSingleCol(null).addRow(p2).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());
    assertEquals(p1, colReader.getPeriod().normalizedStandard());
    assertTrue(reader.next());
    assertTrue(colReader.isNull());
    assertNull(colReader.getPeriod());
    assertNull(colReader.getObject());
    assertEquals("null", colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(p2, colReader.getPeriod().normalizedStandard());
    assertFalse(reader.next());
    rs.clear();
}

Example 63 with ScalarReader

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

the class TestScalarAccessors method testVarBinaryRW.

@Test
public void testVarBinaryRW() {
    BatchSchema batchSchema = new SchemaBuilder().add("col", MinorType.VARBINARY).build();
    byte[] v1 = new byte[] {};
    byte[] v2 = new byte[] { (byte) 0x00, (byte) 0x7f, (byte) 0x80, (byte) 0xFF };
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).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 64 with ScalarReader

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

the class TestScalarAccessors method testIntervalYearRW.

@Test
public void testIntervalYearRW() {
    BatchSchema batchSchema = new SchemaBuilder().add("col", MinorType.INTERVALYEAR).build();
    Period p1 = Period.years(0);
    Period p2 = Period.years(2).plusMonths(3);
    Period p3 = Period.years(1234).plusMonths(11);
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).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());
    assertEquals(p1, colReader.getPeriod());
    assertTrue(reader.next());
    assertEquals(p2, colReader.getPeriod());
    assertEquals(p2, colReader.getObject());
    assertEquals(p2.toString(), colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(p3, colReader.getPeriod());
    assertFalse(reader.next());
    rs.clear();
}

Example 65 with ScalarReader

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

the class TestScalarAccessors method testIntervalRW.

@Test
public void testIntervalRW() {
    BatchSchema batchSchema = new SchemaBuilder().add("col", MinorType.INTERVAL).build();
    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(batchSchema).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();
}