Examples with TimestampWritableV2 org.apache.hadoop.hive.serde2.io.TimestampWritableV2 used on opensource projects

Example 56 with TimestampWritableV2

use of org.apache.hadoop.hive.serde2.io.TimestampWritableV2 in project hive by apache.

the class TestVectorDateExpressions method compareToUDFDayOfMonthDate.

private void compareToUDFDayOfMonthDate(long t, int y) throws HiveException {
    UDFDayOfMonth udf = new UDFDayOfMonth();
    udf.initialize(new ObjectInspector[] { PrimitiveObjectInspectorFactory.writableTimestampObjectInspector });
    TimestampWritableV2 tsw = toTimestampWritable(t);
    IntWritable res = (IntWritable) udf.evaluate(new GenericUDF.DeferredObject[] { new GenericUDF.DeferredJavaObject(tsw) });
    Assert.assertEquals(res.get(), y);
}

Example 57 with TimestampWritableV2

use of org.apache.hadoop.hive.serde2.io.TimestampWritableV2 in project hive by apache.

the class VectorVerifyFast method doVerifyDeserializeRead.

public static void doVerifyDeserializeRead(DeserializeRead deserializeRead, TypeInfo typeInfo, Object object, boolean isNull) throws IOException {
    if (isNull) {
        if (object != null) {
            TestCase.fail("Field reports null but object is not null (class " + object.getClass().getName() + ", " + object.toString() + ")");
        }
        return;
    } else if (object == null) {
        TestCase.fail("Field report not null but object is null");
    }
    switch(typeInfo.getCategory()) {
        case PRIMITIVE:
            {
                PrimitiveTypeInfo primitiveTypeInfo = (PrimitiveTypeInfo) typeInfo;
                switch(primitiveTypeInfo.getPrimitiveCategory()) {
                    case BOOLEAN:
                        {
                            boolean value = deserializeRead.currentBoolean;
                            if (!(object instanceof BooleanWritable)) {
                                TestCase.fail("Boolean expected writable not Boolean");
                            }
                            boolean expected = ((BooleanWritable) object).get();
                            if (value != expected) {
                                TestCase.fail("Boolean field mismatch (expected " + expected + " found " + value + ")");
                            }
                        }
                        break;
                    case BYTE:
                        {
                            byte value = deserializeRead.currentByte;
                            if (!(object instanceof ByteWritable)) {
                                TestCase.fail("Byte expected writable not Byte");
                            }
                            byte expected = ((ByteWritable) object).get();
                            if (value != expected) {
                                TestCase.fail("Byte field mismatch (expected " + (int) expected + " found " + (int) value + ")");
                            }
                        }
                        break;
                    case SHORT:
                        {
                            short value = deserializeRead.currentShort;
                            if (!(object instanceof ShortWritable)) {
                                TestCase.fail("Short expected writable not Short");
                            }
                            short expected = ((ShortWritable) object).get();
                            if (value != expected) {
                                TestCase.fail("Short field mismatch (expected " + expected + " found " + value + ")");
                            }
                        }
                        break;
                    case INT:
                        {
                            int value = deserializeRead.currentInt;
                            if (!(object instanceof IntWritable)) {
                                TestCase.fail("Integer expected writable not Integer");
                            }
                            int expected = ((IntWritable) object).get();
                            if (value != expected) {
                                TestCase.fail("Int field mismatch (expected " + expected + " found " + value + ")");
                            }
                        }
                        break;
                    case LONG:
                        {
                            long value = deserializeRead.currentLong;
                            if (!(object instanceof LongWritable)) {
                                TestCase.fail("Long expected writable not Long");
                            }
                            Long expected = ((LongWritable) object).get();
                            if (value != expected) {
                                TestCase.fail("Long field mismatch (expected " + expected + " found " + value + ")");
                            }
                        }
                        break;
                    case FLOAT:
                        {
                            float value = deserializeRead.currentFloat;
                            if (!(object instanceof FloatWritable)) {
                                TestCase.fail("Float expected writable not Float");
                            }
                            float expected = ((FloatWritable) object).get();
                            if (value != expected) {
                                TestCase.fail("Float field mismatch (expected " + expected + " found " + value + ")");
                            }
                        }
                        break;
                    case DOUBLE:
                        {
                            double value = deserializeRead.currentDouble;
                            if (!(object instanceof DoubleWritable)) {
                                TestCase.fail("Double expected writable not Double");
                            }
                            double expected = ((DoubleWritable) object).get();
                            if (value != expected) {
                                TestCase.fail("Double field mismatch (expected " + expected + " found " + value + ")");
                            }
                        }
                        break;
                    case STRING:
                        {
                            byte[] stringBytes = Arrays.copyOfRange(deserializeRead.currentBytes, deserializeRead.currentBytesStart, deserializeRead.currentBytesStart + deserializeRead.currentBytesLength);
                            Text text = new Text(stringBytes);
                            String string = text.toString();
                            String expected = ((Text) object).toString();
                            if (!string.equals(expected)) {
                                TestCase.fail("String field mismatch (expected '" + expected + "' found '" + string + "')");
                            }
                        }
                        break;
                    case CHAR:
                        {
                            byte[] stringBytes = Arrays.copyOfRange(deserializeRead.currentBytes, deserializeRead.currentBytesStart, deserializeRead.currentBytesStart + deserializeRead.currentBytesLength);
                            Text text = new Text(stringBytes);
                            String string = text.toString();
                            HiveChar hiveChar = new HiveChar(string, ((CharTypeInfo) primitiveTypeInfo).getLength());
                            HiveChar expected = ((HiveCharWritable) object).getHiveChar();
                            if (!hiveChar.equals(expected)) {
                                TestCase.fail("Char field mismatch (expected '" + expected + "' found '" + hiveChar + "')");
                            }
                        }
                        break;
                    case VARCHAR:
                        {
                            byte[] stringBytes = Arrays.copyOfRange(deserializeRead.currentBytes, deserializeRead.currentBytesStart, deserializeRead.currentBytesStart + deserializeRead.currentBytesLength);
                            Text text = new Text(stringBytes);
                            String string = text.toString();
                            HiveVarchar hiveVarchar = new HiveVarchar(string, ((VarcharTypeInfo) primitiveTypeInfo).getLength());
                            HiveVarchar expected = ((HiveVarcharWritable) object).getHiveVarchar();
                            if (!hiveVarchar.equals(expected)) {
                                TestCase.fail("Varchar field mismatch (expected '" + expected + "' found '" + hiveVarchar + "')");
                            }
                        }
                        break;
                    case DECIMAL:
                        {
                            HiveDecimal value = deserializeRead.currentHiveDecimalWritable.getHiveDecimal();
                            if (value == null) {
                                TestCase.fail("Decimal field evaluated to NULL");
                            }
                            HiveDecimal expected = ((HiveDecimalWritable) object).getHiveDecimal();
                            if (!value.equals(expected)) {
                                DecimalTypeInfo decimalTypeInfo = (DecimalTypeInfo) primitiveTypeInfo;
                                int precision = decimalTypeInfo.getPrecision();
                                int scale = decimalTypeInfo.getScale();
                                TestCase.fail("Decimal field mismatch (expected " + expected.toString() + " found " + value.toString() + ") precision " + precision + ", scale " + scale);
                            }
                        }
                        break;
                    case DATE:
                        {
                            Date value = deserializeRead.currentDateWritable.get();
                            Date expected = ((DateWritableV2) object).get();
                            if (!value.equals(expected)) {
                                TestCase.fail("Date field mismatch (expected " + expected.toString() + " found " + value.toString() + ")");
                            }
                        }
                        break;
                    case TIMESTAMP:
                        {
                            Timestamp value = deserializeRead.currentTimestampWritable.getTimestamp();
                            Timestamp expected = ((TimestampWritableV2) object).getTimestamp();
                            if (!value.equals(expected)) {
                                TestCase.fail("Timestamp field mismatch (expected " + expected.toString() + " found " + value.toString() + ")");
                            }
                        }
                        break;
                    case INTERVAL_YEAR_MONTH:
                        {
                            HiveIntervalYearMonth value = deserializeRead.currentHiveIntervalYearMonthWritable.getHiveIntervalYearMonth();
                            HiveIntervalYearMonth expected = ((HiveIntervalYearMonthWritable) object).getHiveIntervalYearMonth();
                            if (!value.equals(expected)) {
                                TestCase.fail("HiveIntervalYearMonth field mismatch (expected " + expected.toString() + " found " + value.toString() + ")");
                            }
                        }
                        break;
                    case INTERVAL_DAY_TIME:
                        {
                            HiveIntervalDayTime value = deserializeRead.currentHiveIntervalDayTimeWritable.getHiveIntervalDayTime();
                            HiveIntervalDayTime expected = ((HiveIntervalDayTimeWritable) object).getHiveIntervalDayTime();
                            if (!value.equals(expected)) {
                                TestCase.fail("HiveIntervalDayTime field mismatch (expected " + expected.toString() + " found " + value.toString() + ")");
                            }
                        }
                        break;
                    case BINARY:
                        {
                            byte[] byteArray = Arrays.copyOfRange(deserializeRead.currentBytes, deserializeRead.currentBytesStart, deserializeRead.currentBytesStart + deserializeRead.currentBytesLength);
                            BytesWritable bytesWritable = (BytesWritable) object;
                            byte[] expected = Arrays.copyOfRange(bytesWritable.getBytes(), 0, bytesWritable.getLength());
                            if (byteArray.length != expected.length) {
                                TestCase.fail("Byte Array field mismatch (expected " + Arrays.toString(expected) + " found " + Arrays.toString(byteArray) + ")");
                            }
                            for (int b = 0; b < byteArray.length; b++) {
                                if (byteArray[b] != expected[b]) {
                                    TestCase.fail("Byte Array field mismatch (expected " + Arrays.toString(expected) + " found " + Arrays.toString(byteArray) + ")");
                                }
                            }
                        }
                        break;
                    default:
                        throw new Error("Unknown primitive category " + primitiveTypeInfo.getPrimitiveCategory());
                }
            }
            break;
        case LIST:
        case MAP:
        case STRUCT:
        case UNION:
            throw new Error("Complex types need to be handled separately");
        default:
            throw new Error("Unknown category " + typeInfo.getCategory());
    }
}

Example 58 with TimestampWritableV2

use of org.apache.hadoop.hive.serde2.io.TimestampWritableV2 in project hive by apache.

the class VectorVerifyFast method serializeWrite.

public static void serializeWrite(SerializeWrite serializeWrite, TypeInfo typeInfo, Object object) throws IOException {
    if (object == null) {
        serializeWrite.writeNull();
        return;
    }
    switch(typeInfo.getCategory()) {
        case PRIMITIVE:
            {
                PrimitiveTypeInfo primitiveTypeInfo = (PrimitiveTypeInfo) typeInfo;
                switch(primitiveTypeInfo.getPrimitiveCategory()) {
                    case BOOLEAN:
                        {
                            boolean value = ((BooleanWritable) object).get();
                            serializeWrite.writeBoolean(value);
                        }
                        break;
                    case BYTE:
                        {
                            byte value = ((ByteWritable) object).get();
                            serializeWrite.writeByte(value);
                        }
                        break;
                    case SHORT:
                        {
                            short value = ((ShortWritable) object).get();
                            serializeWrite.writeShort(value);
                        }
                        break;
                    case INT:
                        {
                            int value = ((IntWritable) object).get();
                            serializeWrite.writeInt(value);
                        }
                        break;
                    case LONG:
                        {
                            long value = ((LongWritable) object).get();
                            serializeWrite.writeLong(value);
                        }
                        break;
                    case FLOAT:
                        {
                            float value = ((FloatWritable) object).get();
                            serializeWrite.writeFloat(value);
                        }
                        break;
                    case DOUBLE:
                        {
                            double value = ((DoubleWritable) object).get();
                            serializeWrite.writeDouble(value);
                        }
                        break;
                    case STRING:
                        {
                            Text value = (Text) object;
                            byte[] bytes = value.getBytes();
                            int byteLength = value.getLength();
                            serializeWrite.writeString(bytes, 0, byteLength);
                        }
                        break;
                    case CHAR:
                        {
                            HiveChar value = ((HiveCharWritable) object).getHiveChar();
                            serializeWrite.writeHiveChar(value);
                        }
                        break;
                    case VARCHAR:
                        {
                            HiveVarchar value = ((HiveVarcharWritable) object).getHiveVarchar();
                            serializeWrite.writeHiveVarchar(value);
                        }
                        break;
                    case DECIMAL:
                        {
                            HiveDecimal value = ((HiveDecimalWritable) object).getHiveDecimal();
                            DecimalTypeInfo decTypeInfo = (DecimalTypeInfo) primitiveTypeInfo;
                            serializeWrite.writeHiveDecimal(value, decTypeInfo.scale());
                        }
                        break;
                    case DATE:
                        {
                            Date value = ((DateWritableV2) object).get();
                            serializeWrite.writeDate(value);
                        }
                        break;
                    case TIMESTAMP:
                        {
                            Timestamp value = ((TimestampWritableV2) object).getTimestamp();
                            serializeWrite.writeTimestamp(value);
                        }
                        break;
                    case INTERVAL_YEAR_MONTH:
                        {
                            HiveIntervalYearMonth value = ((HiveIntervalYearMonthWritable) object).getHiveIntervalYearMonth();
                            serializeWrite.writeHiveIntervalYearMonth(value);
                        }
                        break;
                    case INTERVAL_DAY_TIME:
                        {
                            HiveIntervalDayTime value = ((HiveIntervalDayTimeWritable) object).getHiveIntervalDayTime();
                            serializeWrite.writeHiveIntervalDayTime(value);
                        }
                        break;
                    case BINARY:
                        {
                            BytesWritable byteWritable = (BytesWritable) object;
                            byte[] binaryBytes = byteWritable.getBytes();
                            int length = byteWritable.getLength();
                            serializeWrite.writeBinary(binaryBytes, 0, length);
                        }
                        break;
                    default:
                        throw new Error("Unknown primitive category " + primitiveTypeInfo.getPrimitiveCategory().name());
                }
            }
            break;
        case LIST:
            {
                ListTypeInfo listTypeInfo = (ListTypeInfo) typeInfo;
                TypeInfo elementTypeInfo = listTypeInfo.getListElementTypeInfo();
                ArrayList<Object> elements = (ArrayList<Object>) object;
                serializeWrite.beginList(elements);
                boolean isFirst = true;
                for (Object elementObject : elements) {
                    if (isFirst) {
                        isFirst = false;
                    } else {
                        serializeWrite.separateList();
                    }
                    if (elementObject == null) {
                        serializeWrite.writeNull();
                    } else {
                        serializeWrite(serializeWrite, elementTypeInfo, elementObject);
                    }
                }
                serializeWrite.finishList();
            }
            break;
        case MAP:
            {
                MapTypeInfo mapTypeInfo = (MapTypeInfo) typeInfo;
                TypeInfo keyTypeInfo = mapTypeInfo.getMapKeyTypeInfo();
                TypeInfo valueTypeInfo = mapTypeInfo.getMapValueTypeInfo();
                HashMap<Object, Object> hashMap = (HashMap<Object, Object>) object;
                serializeWrite.beginMap(hashMap);
                boolean isFirst = true;
                for (Map.Entry<Object, Object> entry : hashMap.entrySet()) {
                    if (isFirst) {
                        isFirst = false;
                    } else {
                        serializeWrite.separateKeyValuePair();
                    }
                    if (entry.getKey() == null) {
                        serializeWrite.writeNull();
                    } else {
                        serializeWrite(serializeWrite, keyTypeInfo, entry.getKey());
                    }
                    serializeWrite.separateKey();
                    if (entry.getValue() == null) {
                        serializeWrite.writeNull();
                    } else {
                        serializeWrite(serializeWrite, valueTypeInfo, entry.getValue());
                    }
                }
                serializeWrite.finishMap();
            }
            break;
        case STRUCT:
            {
                StructTypeInfo structTypeInfo = (StructTypeInfo) typeInfo;
                List<TypeInfo> fieldTypeInfos = structTypeInfo.getAllStructFieldTypeInfos();
                List<Object> fieldValues = (List<Object>) object;
                final int size = fieldValues.size();
                serializeWrite.beginStruct(fieldValues);
                boolean isFirst = true;
                for (int i = 0; i < size; i++) {
                    if (isFirst) {
                        isFirst = false;
                    } else {
                        serializeWrite.separateStruct();
                    }
                    serializeWrite(serializeWrite, fieldTypeInfos.get(i), fieldValues.get(i));
                }
                serializeWrite.finishStruct();
            }
            break;
        case UNION:
            {
                UnionTypeInfo unionTypeInfo = (UnionTypeInfo) typeInfo;
                List<TypeInfo> fieldTypeInfos = unionTypeInfo.getAllUnionObjectTypeInfos();
                final int size = fieldTypeInfos.size();
                StandardUnionObjectInspector.StandardUnion standardUnion = (StandardUnionObjectInspector.StandardUnion) object;
                byte tag = standardUnion.getTag();
                serializeWrite.beginUnion(tag);
                serializeWrite(serializeWrite, fieldTypeInfos.get(tag), standardUnion.getObject());
                serializeWrite.finishUnion();
            }
            break;
        default:
            throw new Error("Unknown category " + typeInfo.getCategory().name());
    }
}

Example 59 with TimestampWritableV2

use of org.apache.hadoop.hive.serde2.io.TimestampWritableV2 in project hive by apache.

the class TestVectorDateExpressions method compareToUDFYearDate.

private void compareToUDFYearDate(long t, int y) throws HiveException {
    UDFYear udf = new UDFYear();
    udf.initialize(new ObjectInspector[] { PrimitiveObjectInspectorFactory.writableTimestampObjectInspector });
    TimestampWritableV2 tsw = toTimestampWritable(t);
    IntWritable res = (IntWritable) udf.evaluate(new GenericUDF.DeferredObject[] { new GenericUDF.DeferredJavaObject(tsw) });
    Assert.assertEquals(res.get(), y);
}

Example 60 with TimestampWritableV2

use of org.apache.hadoop.hive.serde2.io.TimestampWritableV2 in project hive by apache.

the class BinarySortableSerDe method serialize.

static void serialize(ByteStream.Output buffer, Object o, ObjectInspector oi, boolean invert, byte nullMarker, byte notNullMarker) throws SerDeException {
    // Is this field a null?
    if (o == null) {
        writeByte(buffer, nullMarker, invert);
        return;
    }
    // This field is not a null.
    writeByte(buffer, notNullMarker, invert);
    switch(oi.getCategory()) {
        case PRIMITIVE:
            {
                PrimitiveObjectInspector poi = (PrimitiveObjectInspector) oi;
                switch(poi.getPrimitiveCategory()) {
                    case VOID:
                        {
                            return;
                        }
                    case BOOLEAN:
                        {
                            boolean v = ((BooleanObjectInspector) poi).get(o);
                            writeByte(buffer, (byte) (v ? 2 : 1), invert);
                            return;
                        }
                    case BYTE:
                        {
                            ByteObjectInspector boi = (ByteObjectInspector) poi;
                            byte v = boi.get(o);
                            writeByte(buffer, (byte) (v ^ 0x80), invert);
                            return;
                        }
                    case SHORT:
                        {
                            ShortObjectInspector spoi = (ShortObjectInspector) poi;
                            short v = spoi.get(o);
                            serializeShort(buffer, v, invert);
                            return;
                        }
                    case INT:
                        {
                            IntObjectInspector ioi = (IntObjectInspector) poi;
                            int v = ioi.get(o);
                            serializeInt(buffer, v, invert);
                            return;
                        }
                    case LONG:
                        {
                            LongObjectInspector loi = (LongObjectInspector) poi;
                            long v = loi.get(o);
                            serializeLong(buffer, v, invert);
                            return;
                        }
                    case FLOAT:
                        {
                            FloatObjectInspector foi = (FloatObjectInspector) poi;
                            serializeFloat(buffer, foi.get(o), invert);
                            return;
                        }
                    case DOUBLE:
                        {
                            DoubleObjectInspector doi = (DoubleObjectInspector) poi;
                            serializeDouble(buffer, doi.get(o), invert);
                            return;
                        }
                    case STRING:
                        {
                            StringObjectInspector soi = (StringObjectInspector) poi;
                            Text t = soi.getPrimitiveWritableObject(o);
                            serializeBytes(buffer, t.getBytes(), t.getLength(), invert);
                            return;
                        }
                    case CHAR:
                        {
                            HiveCharObjectInspector hcoi = (HiveCharObjectInspector) poi;
                            HiveCharWritable hc = hcoi.getPrimitiveWritableObject(o);
                            // Trailing space should ignored for char comparisons.
                            // So write stripped values for this SerDe.
                            Text t = hc.getStrippedValue();
                            serializeBytes(buffer, t.getBytes(), t.getLength(), invert);
                            return;
                        }
                    case VARCHAR:
                        {
                            HiveVarcharObjectInspector hcoi = (HiveVarcharObjectInspector) poi;
                            HiveVarcharWritable hc = hcoi.getPrimitiveWritableObject(o);
                            // use varchar's text field directly
                            Text t = hc.getTextValue();
                            serializeBytes(buffer, t.getBytes(), t.getLength(), invert);
                            return;
                        }
                    case BINARY:
                        {
                            BinaryObjectInspector baoi = (BinaryObjectInspector) poi;
                            BytesWritable ba = baoi.getPrimitiveWritableObject(o);
                            byte[] toSer = new byte[ba.getLength()];
                            System.arraycopy(ba.getBytes(), 0, toSer, 0, ba.getLength());
                            serializeBytes(buffer, toSer, ba.getLength(), invert);
                            return;
                        }
                    case DATE:
                        {
                            DateObjectInspector doi = (DateObjectInspector) poi;
                            int v = doi.getPrimitiveWritableObject(o).getDays();
                            serializeInt(buffer, v, invert);
                            return;
                        }
                    case TIMESTAMP:
                        {
                            TimestampObjectInspector toi = (TimestampObjectInspector) poi;
                            TimestampWritableV2 t = toi.getPrimitiveWritableObject(o);
                            serializeTimestampWritable(buffer, t, invert);
                            return;
                        }
                    case TIMESTAMPLOCALTZ:
                        {
                            TimestampLocalTZObjectInspector toi = (TimestampLocalTZObjectInspector) poi;
                            TimestampLocalTZWritable t = toi.getPrimitiveWritableObject(o);
                            serializeTimestampTZWritable(buffer, t, invert);
                            return;
                        }
                    case INTERVAL_YEAR_MONTH:
                        {
                            HiveIntervalYearMonthObjectInspector ioi = (HiveIntervalYearMonthObjectInspector) poi;
                            HiveIntervalYearMonth intervalYearMonth = ioi.getPrimitiveJavaObject(o);
                            serializeHiveIntervalYearMonth(buffer, intervalYearMonth, invert);
                            return;
                        }
                    case INTERVAL_DAY_TIME:
                        {
                            HiveIntervalDayTimeObjectInspector ioi = (HiveIntervalDayTimeObjectInspector) poi;
                            HiveIntervalDayTime intervalDayTime = ioi.getPrimitiveJavaObject(o);
                            serializeHiveIntervalDayTime(buffer, intervalDayTime, invert);
                            return;
                        }
                    case DECIMAL:
                        {
                            HiveDecimalObjectInspector boi = (HiveDecimalObjectInspector) poi;
                            HiveDecimal dec = boi.getPrimitiveJavaObject(o);
                            serializeHiveDecimal(buffer, dec, invert);
                            return;
                        }
                    default:
                        {
                            throw new RuntimeException("Unrecognized type: " + poi.getPrimitiveCategory());
                        }
                }
            }
        case LIST:
            {
                ListObjectInspector loi = (ListObjectInspector) oi;
                ObjectInspector eoi = loi.getListElementObjectInspector();
                // \1 followed by each element
                int size = loi.getListLength(o);
                for (int eid = 0; eid < size; eid++) {
                    writeByte(buffer, (byte) 1, invert);
                    serialize(buffer, loi.getListElement(o, eid), eoi, invert, nullMarker, notNullMarker);
                }
                // and \0 to terminate
                writeByte(buffer, (byte) 0, invert);
                return;
            }
        case MAP:
            {
                MapObjectInspector moi = (MapObjectInspector) oi;
                ObjectInspector koi = moi.getMapKeyObjectInspector();
                ObjectInspector voi = moi.getMapValueObjectInspector();
                // \1 followed by each key and then each value
                Map<?, ?> map = moi.getMap(o);
                for (Map.Entry<?, ?> entry : map.entrySet()) {
                    writeByte(buffer, (byte) 1, invert);
                    serialize(buffer, entry.getKey(), koi, invert, nullMarker, notNullMarker);
                    serialize(buffer, entry.getValue(), voi, invert, nullMarker, notNullMarker);
                }
                // and \0 to terminate
                writeByte(buffer, (byte) 0, invert);
                return;
            }
        case STRUCT:
            {
                StructObjectInspector soi = (StructObjectInspector) oi;
                List<? extends StructField> fields = soi.getAllStructFieldRefs();
                for (int i = 0; i < fields.size(); i++) {
                    serialize(buffer, soi.getStructFieldData(o, fields.get(i)), fields.get(i).getFieldObjectInspector(), invert, nullMarker, notNullMarker);
                }
                return;
            }
        case UNION:
            {
                UnionObjectInspector uoi = (UnionObjectInspector) oi;
                byte tag = uoi.getTag(o);
                writeByte(buffer, tag, invert);
                serialize(buffer, uoi.getField(o), uoi.getObjectInspectors().get(tag), invert, nullMarker, notNullMarker);
                return;
            }
        default:
            {
                throw new RuntimeException("Unrecognized type: " + oi.getCategory());
            }
    }
}