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

Example 11 with ScalarElementReader

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

the class TestScalarAccessors method testIntervalDayArray.

@Test
public void testIntervalDayArray() {
    BatchSchema batchSchema = new SchemaBuilder().addArray("col", MinorType.INTERVALDAY).build();
    Period p1 = Period.days(0);
    Period p2 = Period.days(3).plusHours(4).plusMinutes(5).plusSeconds(23);
    Period p3 = Period.days(999).plusHours(23).plusMinutes(59).plusSeconds(59);
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).addSingleCol(new Period[] {}).addSingleCol(new Period[] { p1, p2, p3 }).build();
    assertEquals(2, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarElementReader colReader = reader.elements(0);
    assertEquals(ValueType.PERIOD, colReader.valueType());
    assertTrue(reader.next());
    assertEquals(0, colReader.size());
    assertTrue(reader.next());
    assertEquals(3, colReader.size());
    assertEquals(p1, colReader.getPeriod(0).normalizedStandard());
    assertEquals(p2, colReader.getPeriod(1).normalizedStandard());
    assertEquals(p3.normalizedStandard(), colReader.getPeriod(2).normalizedStandard());
    assertEquals(p2, ((Period) colReader.getObject(1)).normalizedStandard());
    assertEquals(p2.toString(), colReader.getAsString(1));
    assertFalse(reader.next());
    rs.clear();
}

Example 12 with ScalarElementReader

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

the class TestScalarAccessors method testVarBinaryArray.

@Test
public void testVarBinaryArray() {
    BatchSchema batchSchema = new SchemaBuilder().addArray("col", MinorType.VARBINARY).build();
    byte[] v1 = new byte[] {};
    byte[] v2 = new byte[] { (byte) 0x00, (byte) 0x7f, (byte) 0x80, (byte) 0xFF };
    byte[] v3 = new byte[] { (byte) 0xDE, (byte) 0xAD, (byte) 0xBE, (byte) 0xAF };
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).addSingleCol(new byte[][] {}).addSingleCol(new byte[][] { v1, v2, v3 }).build();
    assertEquals(2, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarElementReader colReader = reader.elements(0);
    assertEquals(ValueType.BYTES, colReader.valueType());
    assertTrue(reader.next());
    assertEquals(0, colReader.size());
    assertTrue(reader.next());
    assertEquals(3, colReader.size());
    assertTrue(Arrays.equals(v1, colReader.getBytes(0)));
    assertTrue(Arrays.equals(v2, colReader.getBytes(1)));
    assertTrue(Arrays.equals(v3, colReader.getBytes(2)));
    assertTrue(Arrays.equals(v2, (byte[]) colReader.getObject(1)));
    assertEquals("[00, 7f, 80, ff]", colReader.getAsString(1));
    assertFalse(reader.next());
    rs.clear();
}

Example 13 with ScalarElementReader

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

the class TestScalarAccessors method testIntervalYearArray.

@Test
public void testIntervalYearArray() {
    BatchSchema batchSchema = new SchemaBuilder().addArray("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).addSingleCol(new Period[] {}).addSingleCol(new Period[] { p1, p2, p3 }).build();
    assertEquals(2, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarElementReader colReader = reader.elements(0);
    assertEquals(ValueType.PERIOD, colReader.valueType());
    assertTrue(reader.next());
    assertEquals(0, colReader.size());
    assertTrue(reader.next());
    assertEquals(3, colReader.size());
    assertEquals(p1, colReader.getPeriod(0));
    assertEquals(p2, colReader.getPeriod(1));
    assertEquals(p3, colReader.getPeriod(2));
    assertEquals(p2, colReader.getObject(1));
    assertEquals(p2.toString(), colReader.getAsString(1));
    assertFalse(reader.next());
    rs.clear();
}

Example 14 with ScalarElementReader

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

the class TestScalarAccessors method intArrayTester.

private void intArrayTester(MinorType type) {
    BatchSchema batchSchema = new SchemaBuilder().addArray("col", type).build();
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).addSingleCol(new int[] {}).addSingleCol(new int[] { 0, 20, 30 }).build();
    assertEquals(2, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarElementReader colReader = reader.elements(0);
    assertEquals(ValueType.INTEGER, colReader.valueType());
    assertTrue(reader.next());
    assertEquals(0, colReader.size());
    assertTrue(reader.next());
    assertEquals(3, colReader.size());
    assertEquals(0, colReader.getInt(0));
    assertEquals(20, colReader.getInt(1));
    assertEquals(30, colReader.getInt(2));
    assertEquals(0, colReader.getObject(0));
    assertEquals(20, colReader.getObject(1));
    assertEquals(30, colReader.getObject(2));
    assertEquals("0", colReader.getAsString(0));
    assertEquals("20", colReader.getAsString(1));
    assertEquals("30", colReader.getAsString(2));
    assertFalse(reader.next());
    rs.clear();
}

Example 15 with ScalarElementReader

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

the class RowSetTest method testTopFixedWidthArray.

/**
 * Test an array of ints (as an example fixed-width type)
 * at the top level of a schema.
 */
@Test
public void testTopFixedWidthArray() {
    BatchSchema batchSchema = new SchemaBuilder().add("c", MinorType.INT).addArray("a", MinorType.INT).build();
    ExtendableRowSet rs1 = fixture.rowSet(batchSchema);
    RowSetWriter writer = rs1.writer();
    writer.scalar(0).setInt(10);
    ScalarWriter array = writer.array(1).scalar();
    array.setInt(100);
    array.setInt(110);
    writer.save();
    writer.scalar(0).setInt(20);
    array.setInt(200);
    array.setInt(120);
    array.setInt(220);
    writer.save();
    writer.scalar(0).setInt(30);
    writer.save();
    SingleRowSet result = writer.done();
    RowSetReader reader = result.reader();
    assertTrue(reader.next());
    assertEquals(10, reader.scalar(0).getInt());
    ScalarElementReader arrayReader = reader.array(1).elements();
    assertEquals(2, arrayReader.size());
    assertEquals(100, arrayReader.getInt(0));
    assertEquals(110, arrayReader.getInt(1));
    assertTrue(reader.next());
    assertEquals(20, reader.scalar(0).getInt());
    assertEquals(3, arrayReader.size());
    assertEquals(200, arrayReader.getInt(0));
    assertEquals(120, arrayReader.getInt(1));
    assertEquals(220, arrayReader.getInt(2));
    assertTrue(reader.next());
    assertEquals(30, reader.scalar(0).getInt());
    assertEquals(0, arrayReader.size());
    assertFalse(reader.next());
    SingleRowSet rs2 = fixture.rowSetBuilder(batchSchema).addRow(10, intArray(100, 110)).addRow(20, intArray(200, 120, 220)).addRow(30, null).build();
    new RowSetComparison(rs1).verifyAndClearAll(rs2);
}