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

Example 66 with ScalarReader

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

the class TestResultSetLoaderOverflow method testArrayOverflowWithOtherArrays.

/**
 * Test the complete set of array overflow cases:
 * <ul>
 * <li>Array a is written before the column that has overflow,
 * and must be copied, in its entirety, to the overflow row.</li>
 * <li>Column b causes the overflow.</li>
 * <li>Column c is written after the overflow, and should go
 * to the look-ahead row.</li>
 * <li>Column d is written for a while, then has empties before
 * the overflow row, but is written in the overflow row.<li>
 * <li>Column e is like d, but is not written in the overflow
 * row.</li>
 */
@Test
public void testArrayOverflowWithOtherArrays() {
    TupleMetadata schema = new SchemaBuilder().addArray("a", MinorType.INT).addArray("b", MinorType.VARCHAR).addArray("c", MinorType.INT).addArray("d", MinorType.INT).buildSchema();
    ResultSetOptions options = new ResultSetOptionBuilder().rowCountLimit(ValueVector.MAX_ROW_COUNT).readerSchema(schema).build();
    ResultSetLoader rsLoader = new ResultSetLoaderImpl(fixture.allocator(), options);
    RowSetLoader rootWriter = rsLoader.writer();
    // Fill batch with rows of with a single array, three values each. Tack on
    // a suffix to each so we can be sure the proper data is written and moved
    // to the overflow batch.
    byte[] value = new byte[512];
    Arrays.fill(value, (byte) 'X');
    String strValue = new String(value, Charsets.UTF_8);
    int aCount = 3;
    int bCount = 11;
    int cCount = 5;
    int dCount = 7;
    int cCutoff = ValueVector.MAX_BUFFER_SIZE / value.length / bCount / 2;
    ScalarWriter aWriter = rootWriter.array("a").scalar();
    ScalarWriter bWriter = rootWriter.array("b").scalar();
    ScalarWriter cWriter = rootWriter.array("c").scalar();
    ScalarWriter dWriter = rootWriter.array("d").scalar();
    int count = 0;
    rsLoader.startBatch();
    while (rootWriter.start()) {
        for (int i = 0; i < aCount; i++) {
            aWriter.setInt(count * aCount + i);
        }
        for (int i = 0; i < bCount; i++) {
            String cellValue = strValue + (count * bCount + i);
            bWriter.setString(cellValue);
        }
        if (count < cCutoff) {
            for (int i = 0; i < cCount; i++) {
                cWriter.setInt(count * cCount + i);
            }
        }
        if (count < cCutoff || rootWriter.isFull()) {
            for (int i = 0; i < dCount; i++) {
                dWriter.setInt(count * dCount + i);
            }
        }
        rootWriter.save();
        count++;
    }
    // Verify
    {
        VectorContainer container = rsLoader.harvest();
        BatchValidator.validate(container);
        RowSet result = fixture.wrap(container);
        assertEquals(count - 1, result.rowCount());
        RowSetReader reader = result.reader();
        ArrayReader aArray = reader.array("a");
        ScalarReader aReader = aArray.scalar();
        ArrayReader bArray = reader.array("b");
        ScalarReader bReader = bArray.scalar();
        ArrayReader cArray = reader.array("c");
        ScalarReader cReader = cArray.scalar();
        ArrayReader dArray = reader.array("d");
        ScalarReader dReader = dArray.scalar();
        while (reader.next()) {
            int rowId = reader.offset();
            assertEquals(aCount, aArray.size());
            for (int i = 0; i < aCount; i++) {
                assertTrue(aArray.next());
                assertEquals(rowId * aCount + i, aReader.getInt());
            }
            assertEquals(bCount, bArray.size());
            for (int i = 0; i < bCount; i++) {
                assertTrue(bArray.next());
                String cellValue = strValue + (rowId * bCount + i);
                assertEquals(cellValue, bReader.getString());
            }
            if (rowId < cCutoff) {
                assertEquals(cCount, cArray.size());
                for (int i = 0; i < cCount; i++) {
                    assertTrue(cArray.next());
                    assertEquals(rowId * cCount + i, cReader.getInt());
                }
                assertEquals(dCount, dArray.size());
                for (int i = 0; i < dCount; i++) {
                    assertTrue(dArray.next());
                    assertEquals(rowId * dCount + i, dReader.getInt());
                }
            } else {
                assertEquals(0, cArray.size());
                assertEquals(0, dArray.size());
            }
        }
        result.clear();
    }
    int firstCount = count - 1;
    // One row is in the batch. Write more, skipping over the
    // initial few values for columns c and d. Column d has a
    // roll-over value, c has an empty roll-over.
    rsLoader.startBatch();
    for (int j = 0; j < 5; j++) {
        rootWriter.start();
        for (int i = 0; i < aCount; i++) {
            aWriter.setInt(count * aCount + i);
        }
        for (int i = 0; i < bCount; i++) {
            String cellValue = strValue + (count * bCount + i);
            bWriter.setString(cellValue);
        }
        if (j > 3) {
            for (int i = 0; i < cCount; i++) {
                cWriter.setInt(count * cCount + i);
            }
            for (int i = 0; i < dCount; i++) {
                dWriter.setInt(count * dCount + i);
            }
        }
        rootWriter.save();
        count++;
    }
    {
        VectorContainer container = rsLoader.harvest();
        BatchValidator.validate(container);
        RowSet result = fixture.wrap(container);
        assertEquals(6, result.rowCount());
        RowSetReader reader = result.reader();
        ArrayReader aArray = reader.array("a");
        ScalarReader aReader = aArray.scalar();
        ArrayReader bArray = reader.array("b");
        ScalarReader bReader = bArray.scalar();
        ArrayReader cArray = reader.array("c");
        ScalarReader cReader = cArray.scalar();
        ArrayReader dArray = reader.array("d");
        ScalarReader dReader = dArray.scalar();
        int j = 0;
        while (reader.next()) {
            int rowId = firstCount + reader.offset();
            assertEquals(aCount, aArray.size());
            for (int i = 0; i < aCount; i++) {
                assertTrue(aArray.next());
                assertEquals("Index " + i, rowId * aCount + i, aReader.getInt());
            }
            assertEquals(bCount, bArray.size());
            for (int i = 0; i < bCount; i++) {
                assertTrue(bArray.next());
                String cellValue = strValue + (rowId * bCount + i);
                assertEquals(cellValue, bReader.getString());
            }
            if (j > 4) {
                assertEquals(cCount, cArray.size());
                for (int i = 0; i < cCount; i++) {
                    assertTrue(cArray.next());
                    assertEquals(rowId * cCount + i, cReader.getInt());
                }
            } else {
                assertEquals(0, cArray.size());
            }
            if (j == 0 || j > 4) {
                assertEquals(dCount, dArray.size());
                for (int i = 0; i < dCount; i++) {
                    assertTrue(dArray.next());
                    assertEquals(rowId * dCount + i, dReader.getInt());
                }
            } else {
                assertEquals(0, dArray.size());
            }
            j++;
        }
        result.clear();
    }
    rsLoader.close();
}

Example 67 with ScalarReader

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

the class TestMapAccessors method testDoubleNestedArray.

/**
 * Test a doubly-nested array of maps.
 */
@Test
public void testDoubleNestedArray() {
    TupleMetadata schema = new SchemaBuilder().add("a", MinorType.INT).addMapArray("m1").add("b", MinorType.INT).addMapArray("m2").add("c", MinorType.INT).addArray("d", MinorType.VARCHAR).resumeMap().resumeSchema().buildSchema();
    RowSetBuilder builder = fixture.rowSetBuilder(schema);
    RowSetWriter rootWriter = builder.writer();
    ScalarWriter aWriter = rootWriter.scalar("a");
    ArrayWriter a1Writer = rootWriter.array("m1");
    TupleWriter m1Writer = a1Writer.tuple();
    ScalarWriter bWriter = m1Writer.scalar("b");
    ArrayWriter a2Writer = m1Writer.array("m2");
    TupleWriter m2Writer = a2Writer.tuple();
    ScalarWriter cWriter = m2Writer.scalar("c");
    ScalarWriter dWriter = m2Writer.array("d").scalar();
    for (int i = 0; i < 5; i++) {
        aWriter.setInt(i);
        for (int j = 0; j < 4; j++) {
            int a1Key = i + 10 + j;
            bWriter.setInt(a1Key);
            for (int k = 0; k < 3; k++) {
                int a2Key = a1Key * 10 + k;
                cWriter.setInt(a2Key);
                for (int l = 0; l < 2; l++) {
                    dWriter.setString("d-" + (a2Key * 10 + l));
                }
                a2Writer.save();
            }
            a1Writer.save();
        }
        rootWriter.save();
    }
    RowSet results = builder.build();
    RowSetReader reader = results.reader();
    ScalarReader aReader = reader.scalar("a");
    ArrayReader a1Reader = reader.array("m1");
    TupleReader m1Reader = a1Reader.tuple();
    ScalarReader bReader = m1Reader.scalar("b");
    ArrayReader a2Reader = m1Reader.array("m2");
    TupleReader m2Reader = a2Reader.tuple();
    ScalarReader cReader = m2Reader.scalar("c");
    ArrayReader dArray = m2Reader.array("d");
    ScalarReader dReader = dArray.scalar();
    for (int i = 0; i < 5; i++) {
        assertTrue(reader.next());
        assertEquals(i, aReader.getInt());
        for (int j = 0; j < 4; j++) {
            assertTrue(a1Reader.next());
            int a1Key = i + 10 + j;
            assertEquals(a1Key, bReader.getInt());
            for (int k = 0; k < 3; k++) {
                assertTrue(a2Reader.next());
                int a2Key = a1Key * 10 + k;
                assertEquals(a2Key, cReader.getInt());
                for (int l = 0; l < 2; l++) {
                    assertTrue(dArray.next());
                    assertEquals("d-" + (a2Key * 10 + l), dReader.getString());
                }
            }
        }
    }
    results.clear();
}

Example 68 with ScalarReader

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

the class TestMapAccessors method testBasics.

@Test
public void testBasics() {
    final TupleMetadata schema = new SchemaBuilder().add("a", MinorType.INT).addMap("m").add("c", MinorType.INT).add("d", MinorType.VARCHAR).resumeSchema().add("e", MinorType.VARCHAR).buildSchema();
    RowSetBuilder builder = fixture.rowSetBuilder(schema);
    RowSetWriter rootWriter = builder.writer();
    // Verify structure and schema
    final TupleMetadata actualSchema = rootWriter.tupleSchema();
    assertEquals(3, actualSchema.size());
    assertTrue(actualSchema.metadata(1).isMap());
    assertEquals(2, actualSchema.metadata("m").tupleSchema().size());
    assertEquals(2, actualSchema.column("m").getChildren().size());
    // Write a row the way that clients will do.
    final ScalarWriter aWriter = rootWriter.scalar("a");
    final TupleWriter mWriter = rootWriter.tuple("m");
    final ScalarWriter cWriter = mWriter.scalar("c");
    final ScalarWriter dWriter = mWriter.scalar("d");
    final ScalarWriter eWriter = rootWriter.scalar("e");
    aWriter.setInt(10);
    cWriter.setInt(110);
    dWriter.setString("fred");
    eWriter.setString("pebbles");
    rootWriter.save();
    // Write another using the test-time conveniences
    rootWriter.addRow(20, mapValue(210, "barney"), "bam-bam");
    RowSet result = builder.build();
    assertEquals(2, result.rowCount());
    // Validate internal structure.
    VectorContainer container = result.container();
    assertEquals(3, container.getNumberOfColumns());
    ValueVector v = container.getValueVector(1).getValueVector();
    assertTrue(v instanceof MapVector);
    MapVector mv = (MapVector) v;
    assertEquals(2, mv.getAccessor().getValueCount());
    // Validate data. Do so using the readers to avoid verifying
    // using the very mechanisms we want to test.
    RowSetReader rootReader = result.reader();
    final ScalarReader aReader = rootReader.scalar("a");
    final TupleReader mReader = rootReader.tuple("m");
    final ScalarReader cReader = mReader.scalar("c");
    final ScalarReader dReader = mReader.scalar("d");
    final ScalarReader eReader = rootReader.scalar("e");
    rootReader.next();
    assertEquals(10, aReader.getInt());
    assertEquals(110, cReader.getInt());
    assertEquals("fred", dReader.getString());
    assertEquals("pebbles", eReader.getString());
    rootReader.next();
    assertEquals(20, aReader.getInt());
    assertEquals(210, cReader.getInt());
    assertEquals("barney", dReader.getString());
    assertEquals("bam-bam", eReader.getString());
    // Verify using the convenience methods.
    final SingleRowSet expected = fixture.rowSetBuilder(schema).addRow(10, mapValue(110, "fred"), "pebbles").addRow(20, mapValue(210, "barney"), "bam-bam").build();
    new RowSetComparison(expected).verify(result);
    // Test that the row set rebuilds its internal structure from
    // a vector container.
    RowSet wrapped = fixture.wrap(result.container());
    RowSetUtilities.verify(expected, wrapped);
}

Example 69 with ScalarReader

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

the class TestRepeatedListAccessors method testSchema2DWriterReader.

@Test
public void testSchema2DWriterReader() {
    final TupleMetadata schema = new SchemaBuilder().add("id", MinorType.INT).addRepeatedList("list2").addArray(MinorType.VARCHAR).resumeSchema().buildSchema();
    final DirectRowSet rowSet = DirectRowSet.fromSchema(fixture.allocator(), schema);
    SingleRowSet result;
    {
        final RowSetWriter writer = rowSet.writer();
        assertEquals(2, writer.size());
        final ObjectWriter listObj = writer.column("list2");
        assertEquals(ObjectType.ARRAY, listObj.type());
        final ArrayWriter listWriter = listObj.array();
        assertEquals(ObjectType.ARRAY, listWriter.entryType());
        final ArrayWriter innerWriter = listWriter.array();
        assertEquals(ObjectType.SCALAR, innerWriter.entryType());
        final ScalarWriter strWriter = innerWriter.scalar();
        // Write one row using writers explicitly.
        // 
        // (1, [["a, "b"], ["c", "d"]])
        // 
        // Note auto increment of inner list on write.
        writer.scalar("id").setInt(1);
        strWriter.setString("a");
        strWriter.setString("b");
        listWriter.save();
        strWriter.setString("c");
        strWriter.setString("d");
        listWriter.save();
        writer.save();
        // Write more rows using the convenience methods.
        // 
        // (2, [["e"], [], ["f", "g", "h"]])
        // (3, [])
        // (4, [[], ["i"], []])
        writer.addRow(2, objArray(strArray("e"), strArray(), strArray("f", "g", "h"))).addRow(3, objArray()).addRow(4, objArray(strArray(), strArray("i"), strArray()));
        result = writer.done();
    }
    // Verify one row using the individual readers.
    {
        final RowSetReader reader = result.reader();
        assertEquals(2, reader.columnCount());
        final ObjectReader listObj = reader.column("list2");
        assertEquals(ObjectType.ARRAY, listObj.type());
        final ArrayReader listReader = listObj.array();
        assertEquals(ObjectType.ARRAY, listReader.entryType());
        final ArrayReader innerReader = listReader.array();
        assertEquals(ObjectType.SCALAR, innerReader.entryType());
        final ScalarReader strReader = innerReader.scalar();
        // Write one row using writers explicitly.
        // 
        // (1, [["a, "b"], ["c", "d"]])
        assertTrue(reader.next());
        assertEquals(2, listReader.size());
        assertTrue(listReader.next());
        assertEquals(2, innerReader.size());
        assertTrue(innerReader.next());
        assertEquals("a", strReader.getString());
        assertTrue(innerReader.next());
        assertEquals("b", strReader.getString());
        assertFalse(innerReader.next());
        assertTrue(listReader.next());
        assertEquals(2, innerReader.size());
        assertTrue(innerReader.next());
        assertEquals("c", strReader.getString());
        assertTrue(innerReader.next());
        assertEquals("d", strReader.getString());
        assertFalse(innerReader.next());
        assertFalse(listReader.next());
    }
    // Verify both rows by building another row set and comparing.
    final RowSet expected = fixture.rowSetBuilder(schema).addRow(1, objArray(strArray("a", "b"), strArray("c", "d"))).addRow(2, objArray(strArray("e"), strArray(), strArray("f", "g", "h"))).addRow(3, objArray()).addRow(4, objArray(strArray(), strArray("i"), strArray())).build();
    new RowSetComparison(expected).verify(result);
    // Test that the row set rebuilds its internal structure from
    // a vector container.
    RowSet wrapped = fixture.wrap(result.container());
    RowSetUtilities.verify(expected, wrapped);
}

Example 70 with ScalarReader

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

the class TestScalarAccessors method testNullableVarBinary.

@Test
public void testNullableVarBinary() {
    TupleMetadata schema = new SchemaBuilder().addNullable("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).addSingleCol(null).addRow(v2).build();
    assertEquals(3, 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(colReader.isNull());
    assertNull(colReader.getObject());
    assertEquals("null", colReader.getAsString());
    assertTrue(reader.next());
    assertTrue(Arrays.equals(v2, colReader.getBytes()));
    assertFalse(reader.next());
    rs.clear();
}