Examples with Text org.apache.arrow.vector.util.Text used on opensource projects

Example 1 with Text

use of org.apache.arrow.vector.util.Text in project beam by apache.

the class BigQueryIOStorageReadTest method createResponseArrow.

private ReadRowsResponse createResponseArrow(org.apache.arrow.vector.types.pojo.Schema arrowSchema, List<String> name, List<Long> number, double progressAtResponseStart, double progressAtResponseEnd) {
    ArrowRecordBatch serializedRecord;
    try (VectorSchemaRoot schemaRoot = VectorSchemaRoot.create(arrowSchema, allocator)) {
        schemaRoot.allocateNew();
        schemaRoot.setRowCount(name.size());
        VarCharVector strVector = (VarCharVector) schemaRoot.getFieldVectors().get(0);
        BigIntVector bigIntVector = (BigIntVector) schemaRoot.getFieldVectors().get(1);
        for (int i = 0; i < name.size(); i++) {
            bigIntVector.set(i, number.get(i));
            strVector.set(i, new Text(name.get(i)));
        }
        VectorUnloader unLoader = new VectorUnloader(schemaRoot);
        try (org.apache.arrow.vector.ipc.message.ArrowRecordBatch records = unLoader.getRecordBatch()) {
            try (ByteArrayOutputStream os = new ByteArrayOutputStream()) {
                MessageSerializer.serialize(new WriteChannel(Channels.newChannel(os)), records);
                serializedRecord = ArrowRecordBatch.newBuilder().setRowCount(records.getLength()).setSerializedRecordBatch(ByteString.copyFrom(os.toByteArray())).build();
            } catch (IOException e) {
                throw new RuntimeException("Error writing to byte array output stream", e);
            }
        }
    }
    return ReadRowsResponse.newBuilder().setArrowRecordBatch(serializedRecord).setRowCount(name.size()).setStats(StreamStats.newBuilder().setProgress(Progress.newBuilder().setAtResponseStart(progressAtResponseStart).setAtResponseEnd(progressAtResponseEnd))).build();
}

Example 2 with Text

use of org.apache.arrow.vector.util.Text in project beam by apache.

the class ArrowConversionTest method rowIterator.

@Test
public void rowIterator() {
    org.apache.arrow.vector.types.pojo.Schema schema = new org.apache.arrow.vector.types.pojo.Schema(asList(field("int32", new ArrowType.Int(32, true)), field("float64", new ArrowType.FloatingPoint(FloatingPointPrecision.DOUBLE)), field("string", new ArrowType.Utf8()), field("timestampMicroUTC", new ArrowType.Timestamp(TimeUnit.MICROSECOND, "UTC")), field("timestampMilliUTC", new ArrowType.Timestamp(TimeUnit.MILLISECOND, "UTC")), field("int32_list", new ArrowType.List(), field("int32s", new ArrowType.Int(32, true))), field("boolean", new ArrowType.Bool()), field("fixed_size_binary", new ArrowType.FixedSizeBinary(3))));
    Schema beamSchema = ArrowConversion.ArrowSchemaTranslator.toBeamSchema(schema);
    VectorSchemaRoot expectedSchemaRoot = VectorSchemaRoot.create(schema, allocator);
    expectedSchemaRoot.allocateNew();
    expectedSchemaRoot.setRowCount(16);
    IntVector intVector = (IntVector) expectedSchemaRoot.getFieldVectors().get(0);
    Float8Vector floatVector = (Float8Vector) expectedSchemaRoot.getFieldVectors().get(1);
    VarCharVector strVector = (VarCharVector) expectedSchemaRoot.getFieldVectors().get(2);
    TimeStampMicroTZVector timestampMicroUtcVector = (TimeStampMicroTZVector) expectedSchemaRoot.getFieldVectors().get(3);
    TimeStampMilliTZVector timeStampMilliTZVector = (TimeStampMilliTZVector) expectedSchemaRoot.getFieldVectors().get(4);
    ListVector int32ListVector = (ListVector) expectedSchemaRoot.getFieldVectors().get(5);
    IntVector int32ListElementVector = int32ListVector.<IntVector>addOrGetVector(new org.apache.arrow.vector.types.pojo.FieldType(false, new ArrowType.Int(32, true), null)).getVector();
    BitVector boolVector = (BitVector) expectedSchemaRoot.getFieldVectors().get(6);
    FixedSizeBinaryVector fixedSizeBinaryVector = (FixedSizeBinaryVector) expectedSchemaRoot.getFieldVectors().get(7);
    ArrayList<Row> expectedRows = new ArrayList<>();
    for (int i = 0; i < 16; i++) {
        DateTime dt = new DateTime(2019, 1, i + 1, i, i, i, DateTimeZone.UTC);
        expectedRows.add(Row.withSchema(beamSchema).addValues(i, i + .1 * i, "" + i, dt, dt, ImmutableList.of(i), (i % 2) != 0, new byte[] { (byte) i, (byte) (i + 1), (byte) (i + 2) }).build());
        intVector.set(i, i);
        floatVector.set(i, i + .1 * i);
        strVector.set(i, new Text("" + i));
        timestampMicroUtcVector.set(i, dt.getMillis() * 1000);
        timeStampMilliTZVector.set(i, dt.getMillis());
        int32ListVector.startNewValue(i);
        int32ListElementVector.set(i, i);
        int32ListVector.endValue(i, 1);
        boolVector.set(i, i % 2);
        fixedSizeBinaryVector.set(i, new byte[] { (byte) i, (byte) (i + 1), (byte) (i + 2) });
    }
    assertThat(ImmutableList.copyOf(ArrowConversion.rowsFromRecordBatch(beamSchema, expectedSchemaRoot)), IsIterableContainingInOrder.contains(expectedRows.stream().map((row) -> equalTo(row)).collect(ImmutableList.toImmutableList())));
    expectedSchemaRoot.close();
}