Examples with HiveVarcharObjectInspector org.apache.hadoop.hive.serde2.objectinspector.primitive.HiveVarcharObjectInspector used on opensource projects

Example 1 with HiveVarcharObjectInspector

use of org.apache.hadoop.hive.serde2.objectinspector.primitive.HiveVarcharObjectInspector in project hive by apache.

the class JsonSerDe method buildJSONString.

// TODO : code section copied over from SerDeUtils because of non-standard json production there
// should use quotes for all field names. We should fix this there, and then remove this copy.
// See http://jackson.codehaus.org/1.7.3/javadoc/org/codehaus/jackson/JsonParser.Feature.html#ALLOW_UNQUOTED_FIELD_NAMES
// for details - trying to enable Jackson to ignore that doesn't seem to work(compilation failure
// when attempting to use that feature, so having to change the production itself.
// Also, throws IOException when Binary is detected.
private static void buildJSONString(StringBuilder sb, Object o, ObjectInspector oi) throws IOException {
    switch(oi.getCategory()) {
        case PRIMITIVE:
            {
                PrimitiveObjectInspector poi = (PrimitiveObjectInspector) oi;
                if (o == null) {
                    sb.append("null");
                } else {
                    switch(poi.getPrimitiveCategory()) {
                        case BOOLEAN:
                            {
                                boolean b = ((BooleanObjectInspector) poi).get(o);
                                sb.append(b ? "true" : "false");
                                break;
                            }
                        case BYTE:
                            {
                                sb.append(((ByteObjectInspector) poi).get(o));
                                break;
                            }
                        case SHORT:
                            {
                                sb.append(((ShortObjectInspector) poi).get(o));
                                break;
                            }
                        case INT:
                            {
                                sb.append(((IntObjectInspector) poi).get(o));
                                break;
                            }
                        case LONG:
                            {
                                sb.append(((LongObjectInspector) poi).get(o));
                                break;
                            }
                        case FLOAT:
                            {
                                sb.append(((FloatObjectInspector) poi).get(o));
                                break;
                            }
                        case DOUBLE:
                            {
                                sb.append(((DoubleObjectInspector) poi).get(o));
                                break;
                            }
                        case STRING:
                            {
                                String s = SerDeUtils.escapeString(((StringObjectInspector) poi).getPrimitiveJavaObject(o));
                                appendWithQuotes(sb, s);
                                break;
                            }
                        case BINARY:
                            byte[] b = ((BinaryObjectInspector) oi).getPrimitiveJavaObject(o);
                            Text txt = new Text();
                            txt.set(b, 0, b.length);
                            appendWithQuotes(sb, SerDeUtils.escapeString(txt.toString()));
                            break;
                        case DATE:
                            Date d = ((DateObjectInspector) poi).getPrimitiveJavaObject(o);
                            appendWithQuotes(sb, d.toString());
                            break;
                        case TIMESTAMP:
                            {
                                Timestamp t = ((TimestampObjectInspector) poi).getPrimitiveJavaObject(o);
                                appendWithQuotes(sb, t.toString());
                                break;
                            }
                        case DECIMAL:
                            sb.append(((HiveDecimalObjectInspector) poi).getPrimitiveJavaObject(o));
                            break;
                        case VARCHAR:
                            {
                                String s = SerDeUtils.escapeString(((HiveVarcharObjectInspector) poi).getPrimitiveJavaObject(o).toString());
                                appendWithQuotes(sb, s);
                                break;
                            }
                        case CHAR:
                            {
                                // this should use HiveChar.getPaddedValue() but it's protected; currently (v0.13)
                                // HiveChar.toString() returns getPaddedValue()
                                String s = SerDeUtils.escapeString(((HiveCharObjectInspector) poi).getPrimitiveJavaObject(o).toString());
                                appendWithQuotes(sb, s);
                                break;
                            }
                        default:
                            throw new RuntimeException("Unknown primitive type: " + poi.getPrimitiveCategory());
                    }
                }
                break;
            }
        case LIST:
            {
                ListObjectInspector loi = (ListObjectInspector) oi;
                ObjectInspector listElementObjectInspector = loi.getListElementObjectInspector();
                List<?> olist = loi.getList(o);
                if (olist == null) {
                    sb.append("null");
                } else {
                    sb.append(SerDeUtils.LBRACKET);
                    for (int i = 0; i < olist.size(); i++) {
                        if (i > 0) {
                            sb.append(SerDeUtils.COMMA);
                        }
                        buildJSONString(sb, olist.get(i), listElementObjectInspector);
                    }
                    sb.append(SerDeUtils.RBRACKET);
                }
                break;
            }
        case MAP:
            {
                MapObjectInspector moi = (MapObjectInspector) oi;
                ObjectInspector mapKeyObjectInspector = moi.getMapKeyObjectInspector();
                ObjectInspector mapValueObjectInspector = moi.getMapValueObjectInspector();
                Map<?, ?> omap = moi.getMap(o);
                if (omap == null) {
                    sb.append("null");
                } else {
                    sb.append(SerDeUtils.LBRACE);
                    boolean first = true;
                    for (Object entry : omap.entrySet()) {
                        if (first) {
                            first = false;
                        } else {
                            sb.append(SerDeUtils.COMMA);
                        }
                        Map.Entry<?, ?> e = (Map.Entry<?, ?>) entry;
                        StringBuilder keyBuilder = new StringBuilder();
                        buildJSONString(keyBuilder, e.getKey(), mapKeyObjectInspector);
                        String keyString = keyBuilder.toString().trim();
                        if ((!keyString.isEmpty()) && (keyString.charAt(0) != SerDeUtils.QUOTE)) {
                            appendWithQuotes(sb, keyString);
                        } else {
                            sb.append(keyString);
                        }
                        sb.append(SerDeUtils.COLON);
                        buildJSONString(sb, e.getValue(), mapValueObjectInspector);
                    }
                    sb.append(SerDeUtils.RBRACE);
                }
                break;
            }
        case STRUCT:
            {
                StructObjectInspector soi = (StructObjectInspector) oi;
                List<? extends StructField> structFields = soi.getAllStructFieldRefs();
                if (o == null) {
                    sb.append("null");
                } else {
                    sb.append(SerDeUtils.LBRACE);
                    for (int i = 0; i < structFields.size(); i++) {
                        if (i > 0) {
                            sb.append(SerDeUtils.COMMA);
                        }
                        appendWithQuotes(sb, structFields.get(i).getFieldName());
                        sb.append(SerDeUtils.COLON);
                        buildJSONString(sb, soi.getStructFieldData(o, structFields.get(i)), structFields.get(i).getFieldObjectInspector());
                    }
                    sb.append(SerDeUtils.RBRACE);
                }
                break;
            }
        case UNION:
            {
                UnionObjectInspector uoi = (UnionObjectInspector) oi;
                if (o == null) {
                    sb.append("null");
                } else {
                    sb.append(SerDeUtils.LBRACE);
                    sb.append(uoi.getTag(o));
                    sb.append(SerDeUtils.COLON);
                    buildJSONString(sb, uoi.getField(o), uoi.getObjectInspectors().get(uoi.getTag(o)));
                    sb.append(SerDeUtils.RBRACE);
                }
                break;
            }
        default:
            throw new RuntimeException("Unknown type in ObjectInspector!");
    }
}

Example 2 with HiveVarcharObjectInspector

use of org.apache.hadoop.hive.serde2.objectinspector.primitive.HiveVarcharObjectInspector in project presto by prestodb.

the class TestDataWritableWriter method writePrimitive.

/**
 * It writes the primitive value to the Parquet RecordConsumer.
 *
 * @param value The object that contains the primitive value.
 * @param inspector The object inspector used to get the correct value type.
 */
private void writePrimitive(final Object value, final PrimitiveObjectInspector inspector) {
    if (value == null) {
        return;
    }
    switch(inspector.getPrimitiveCategory()) {
        case VOID:
            return;
        case DOUBLE:
            recordConsumer.addDouble(((DoubleObjectInspector) inspector).get(value));
            break;
        case BOOLEAN:
            recordConsumer.addBoolean(((BooleanObjectInspector) inspector).get(value));
            break;
        case FLOAT:
            recordConsumer.addFloat(((FloatObjectInspector) inspector).get(value));
            break;
        case BYTE:
            recordConsumer.addInteger(((ByteObjectInspector) inspector).get(value));
            break;
        case INT:
            recordConsumer.addInteger(((IntObjectInspector) inspector).get(value));
            break;
        case LONG:
            recordConsumer.addLong(((LongObjectInspector) inspector).get(value));
            break;
        case SHORT:
            recordConsumer.addInteger(((ShortObjectInspector) inspector).get(value));
            break;
        case STRING:
            String v = ((StringObjectInspector) inspector).getPrimitiveJavaObject(value);
            recordConsumer.addBinary(Binary.fromString(v));
            break;
        case CHAR:
            String vChar = ((HiveCharObjectInspector) inspector).getPrimitiveJavaObject(value).getStrippedValue();
            recordConsumer.addBinary(Binary.fromString(vChar));
            break;
        case VARCHAR:
            String vVarchar = ((HiveVarcharObjectInspector) inspector).getPrimitiveJavaObject(value).getValue();
            recordConsumer.addBinary(Binary.fromString(vVarchar));
            break;
        case BINARY:
            byte[] vBinary = ((BinaryObjectInspector) inspector).getPrimitiveJavaObject(value);
            recordConsumer.addBinary(Binary.fromByteArray(vBinary));
            break;
        case TIMESTAMP:
            Timestamp ts = ((TimestampObjectInspector) inspector).getPrimitiveJavaObject(value);
            recordConsumer.addBinary(NanoTimeUtils.getNanoTime(ts, false).toBinary());
            break;
        case DECIMAL:
            HiveDecimal vDecimal = ((HiveDecimal) inspector.getPrimitiveJavaObject(value));
            DecimalTypeInfo decTypeInfo = (DecimalTypeInfo) inspector.getTypeInfo();
            recordConsumer.addBinary(decimalToBinary(vDecimal, decTypeInfo));
            break;
        case DATE:
            Date vDate = ((DateObjectInspector) inspector).getPrimitiveJavaObject(value);
            recordConsumer.addInteger(DateWritable.dateToDays(vDate));
            break;
        default:
            throw new IllegalArgumentException("Unsupported primitive data type: " + inspector.getPrimitiveCategory());
    }
}

Example 3 with HiveVarcharObjectInspector

use of org.apache.hadoop.hive.serde2.objectinspector.primitive.HiveVarcharObjectInspector in project hive by apache.

the class GenericUDFInBloomFilter method evaluate.

@Override
public Object evaluate(DeferredObject[] arguments) throws HiveException {
    // Return if either of the arguments is null
    if (arguments[0].get() == null || arguments[1].get() == null) {
        return null;
    }
    if (!initializedBloomFilter) {
        // Setup the bloom filter once
        InputStream in = null;
        try {
            BytesWritable bw = (BytesWritable) arguments[1].get();
            byte[] bytes = new byte[bw.getLength()];
            System.arraycopy(bw.getBytes(), 0, bytes, 0, bw.getLength());
            in = new NonSyncByteArrayInputStream(bytes);
            bloomFilter = BloomKFilter.deserialize(in);
        } catch (IOException e) {
            throw new HiveException(e);
        } finally {
            IOUtils.closeStream(in);
        }
        initializedBloomFilter = true;
    }
    // Check if the value is in bloom filter
    switch(((PrimitiveObjectInspector) valObjectInspector).getTypeInfo().getPrimitiveCategory()) {
        case BOOLEAN:
            boolean vBoolean = ((BooleanObjectInspector) valObjectInspector).get(arguments[0].get());
            return bloomFilter.testLong(vBoolean ? 1 : 0);
        case BYTE:
            byte vByte = ((ByteObjectInspector) valObjectInspector).get(arguments[0].get());
            return bloomFilter.testLong(vByte);
        case SHORT:
            short vShort = ((ShortObjectInspector) valObjectInspector).get(arguments[0].get());
            return bloomFilter.testLong(vShort);
        case INT:
            int vInt = ((IntObjectInspector) valObjectInspector).get(arguments[0].get());
            return bloomFilter.testLong(vInt);
        case LONG:
            long vLong = ((LongObjectInspector) valObjectInspector).get(arguments[0].get());
            return bloomFilter.testLong(vLong);
        case FLOAT:
            float vFloat = ((FloatObjectInspector) valObjectInspector).get(arguments[0].get());
            return bloomFilter.testDouble(vFloat);
        case DOUBLE:
            double vDouble = ((DoubleObjectInspector) valObjectInspector).get(arguments[0].get());
            return bloomFilter.testDouble(vDouble);
        case DECIMAL:
            HiveDecimalWritable vDecimal = ((HiveDecimalObjectInspector) valObjectInspector).getPrimitiveWritableObject(arguments[0].get());
            int startIdx = vDecimal.toBytes(scratchBuffer);
            return bloomFilter.testBytes(scratchBuffer, startIdx, scratchBuffer.length - startIdx);
        case DATE:
            DateWritableV2 vDate = ((DateObjectInspector) valObjectInspector).getPrimitiveWritableObject(arguments[0].get());
            return bloomFilter.testLong(vDate.getDays());
        case TIMESTAMP:
            Timestamp vTimeStamp = ((TimestampObjectInspector) valObjectInspector).getPrimitiveJavaObject(arguments[0].get());
            return bloomFilter.testLong(vTimeStamp.toEpochMilli());
        case CHAR:
            Text vChar = ((HiveCharObjectInspector) valObjectInspector).getPrimitiveWritableObject(arguments[0].get()).getStrippedValue();
            return bloomFilter.testBytes(vChar.getBytes(), 0, vChar.getLength());
        case VARCHAR:
            Text vVarchar = ((HiveVarcharObjectInspector) valObjectInspector).getPrimitiveWritableObject(arguments[0].get()).getTextValue();
            return bloomFilter.testBytes(vVarchar.getBytes(), 0, vVarchar.getLength());
        case STRING:
            Text vString = ((StringObjectInspector) valObjectInspector).getPrimitiveWritableObject(arguments[0].get());
            return bloomFilter.testBytes(vString.getBytes(), 0, vString.getLength());
        case BINARY:
            BytesWritable vBytes = ((BinaryObjectInspector) valObjectInspector).getPrimitiveWritableObject(arguments[0].get());
            return bloomFilter.testBytes(vBytes.getBytes(), 0, vBytes.getLength());
        default:
            throw new UDFArgumentTypeException(0, "Bad primitive category " + ((PrimitiveTypeInfo) valObjectInspector).getPrimitiveCategory());
    }
}

Example 4 with HiveVarcharObjectInspector

use of org.apache.hadoop.hive.serde2.objectinspector.primitive.HiveVarcharObjectInspector in project hive by apache.

the class ObjectInspectorUtils method compare.

/**
 * Compare two objects with their respective ObjectInspectors.
 * if nullValueOpt is MAXVALUE, treat null as maximum value.
 * if nullValueOpt is MINVALUE, treat null as minimum value.
 */
public static int compare(Object o1, ObjectInspector oi1, Object o2, ObjectInspector oi2, MapEqualComparer mapEqualComparer, NullValueOption nullValueOpt) {
    if (oi1.getCategory() != oi2.getCategory()) {
        return oi1.getCategory().compareTo(oi2.getCategory());
    }
    if (o1 == null) {
        return o2 == null ? 0 : nullValueOpt.getCmpReturnValue();
    } else if (o2 == null) {
        return -nullValueOpt.getCmpReturnValue();
    }
    switch(oi1.getCategory()) {
        case PRIMITIVE:
            {
                PrimitiveObjectInspector poi1 = ((PrimitiveObjectInspector) oi1);
                PrimitiveObjectInspector poi2 = ((PrimitiveObjectInspector) oi2);
                if (poi1.getPrimitiveCategory() != poi2.getPrimitiveCategory()) {
                    return poi1.getPrimitiveCategory().compareTo(poi2.getPrimitiveCategory());
                }
                switch(poi1.getPrimitiveCategory()) {
                    case VOID:
                        return 0;
                    case BOOLEAN:
                        {
                            int v1 = ((BooleanObjectInspector) poi1).get(o1) ? 1 : 0;
                            int v2 = ((BooleanObjectInspector) poi2).get(o2) ? 1 : 0;
                            return v1 - v2;
                        }
                    case BYTE:
                        {
                            int v1 = ((ByteObjectInspector) poi1).get(o1);
                            int v2 = ((ByteObjectInspector) poi2).get(o2);
                            return v1 - v2;
                        }
                    case SHORT:
                        {
                            int v1 = ((ShortObjectInspector) poi1).get(o1);
                            int v2 = ((ShortObjectInspector) poi2).get(o2);
                            return v1 - v2;
                        }
                    case INT:
                        {
                            int v1 = ((IntObjectInspector) poi1).get(o1);
                            int v2 = ((IntObjectInspector) poi2).get(o2);
                            return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0);
                        }
                    case LONG:
                        {
                            long v1 = ((LongObjectInspector) poi1).get(o1);
                            long v2 = ((LongObjectInspector) poi2).get(o2);
                            return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0);
                        }
                    case FLOAT:
                        {
                            float v1 = ((FloatObjectInspector) poi1).get(o1);
                            float v2 = ((FloatObjectInspector) poi2).get(o2);
                            // The IEEE 754 floating point spec specifies that signed -0.0 and 0.0 should be treated as equal.
                            if (v1 == 0.0f && v2 == 0.0f) {
                                return 0;
                            } else {
                                // Float.compare() treats -0.0 and 0.0 as different
                                return Float.compare(v1, v2);
                            }
                        }
                    case DOUBLE:
                        {
                            double v1 = ((DoubleObjectInspector) poi1).get(o1);
                            double v2 = ((DoubleObjectInspector) poi2).get(o2);
                            // The IEEE 754 floating point spec specifies that signed -0.0 and 0.0 should be treated as equal.
                            if (v1 == 0.0d && v2 == 0.0d) {
                                return 0;
                            } else {
                                // Double.compare() treats -0.0 and 0.0 as different
                                return Double.compare(v1, v2);
                            }
                        }
                    case STRING:
                        {
                            if (poi1.preferWritable() || poi2.preferWritable()) {
                                Text t1 = (Text) poi1.getPrimitiveWritableObject(o1);
                                Text t2 = (Text) poi2.getPrimitiveWritableObject(o2);
                                return t1 == null ? (t2 == null ? 0 : -1) : (t2 == null ? 1 : t1.compareTo(t2));
                            } else {
                                String s1 = (String) poi1.getPrimitiveJavaObject(o1);
                                String s2 = (String) poi2.getPrimitiveJavaObject(o2);
                                return s1 == null ? (s2 == null ? 0 : -1) : (s2 == null ? 1 : s1.compareTo(s2));
                            }
                        }
                    case CHAR:
                        {
                            HiveCharWritable t1 = ((HiveCharObjectInspector) poi1).getPrimitiveWritableObject(o1);
                            HiveCharWritable t2 = ((HiveCharObjectInspector) poi2).getPrimitiveWritableObject(o2);
                            return t1.compareTo(t2);
                        }
                    case VARCHAR:
                        {
                            HiveVarcharWritable t1 = ((HiveVarcharObjectInspector) poi1).getPrimitiveWritableObject(o1);
                            HiveVarcharWritable t2 = ((HiveVarcharObjectInspector) poi2).getPrimitiveWritableObject(o2);
                            return t1.compareTo(t2);
                        }
                    case BINARY:
                        {
                            BytesWritable bw1 = ((BinaryObjectInspector) poi1).getPrimitiveWritableObject(o1);
                            BytesWritable bw2 = ((BinaryObjectInspector) poi2).getPrimitiveWritableObject(o2);
                            return bw1.compareTo(bw2);
                        }
                    case DATE:
                        {
                            DateWritableV2 d1 = ((DateObjectInspector) poi1).getPrimitiveWritableObject(o1);
                            DateWritableV2 d2 = ((DateObjectInspector) poi2).getPrimitiveWritableObject(o2);
                            return d1.compareTo(d2);
                        }
                    case TIMESTAMP:
                        {
                            TimestampWritableV2 t1 = ((TimestampObjectInspector) poi1).getPrimitiveWritableObject(o1);
                            TimestampWritableV2 t2 = ((TimestampObjectInspector) poi2).getPrimitiveWritableObject(o2);
                            return t1.compareTo(t2);
                        }
                    case TIMESTAMPLOCALTZ:
                        {
                            TimestampLocalTZWritable tstz1 = ((TimestampLocalTZObjectInspector) poi1).getPrimitiveWritableObject(o1);
                            TimestampLocalTZWritable tstz2 = ((TimestampLocalTZObjectInspector) poi2).getPrimitiveWritableObject(o2);
                            return tstz1.compareTo(tstz2);
                        }
                    case INTERVAL_YEAR_MONTH:
                        {
                            HiveIntervalYearMonthWritable i1 = ((HiveIntervalYearMonthObjectInspector) poi1).getPrimitiveWritableObject(o1);
                            HiveIntervalYearMonthWritable i2 = ((HiveIntervalYearMonthObjectInspector) poi2).getPrimitiveWritableObject(o2);
                            return i1.compareTo(i2);
                        }
                    case INTERVAL_DAY_TIME:
                        {
                            HiveIntervalDayTimeWritable i1 = ((HiveIntervalDayTimeObjectInspector) poi1).getPrimitiveWritableObject(o1);
                            HiveIntervalDayTimeWritable i2 = ((HiveIntervalDayTimeObjectInspector) poi2).getPrimitiveWritableObject(o2);
                            return i1.compareTo(i2);
                        }
                    case DECIMAL:
                        {
                            HiveDecimalWritable t1 = ((HiveDecimalObjectInspector) poi1).getPrimitiveWritableObject(o1);
                            HiveDecimalWritable t2 = ((HiveDecimalObjectInspector) poi2).getPrimitiveWritableObject(o2);
                            return t1.compareTo(t2);
                        }
                    default:
                        {
                            throw new RuntimeException("Unknown type: " + poi1.getPrimitiveCategory());
                        }
                }
            }
        case STRUCT:
            {
                StructObjectInspector soi1 = (StructObjectInspector) oi1;
                StructObjectInspector soi2 = (StructObjectInspector) oi2;
                List<? extends StructField> fields1 = soi1.getAllStructFieldRefs();
                List<? extends StructField> fields2 = soi2.getAllStructFieldRefs();
                int minimum = Math.min(fields1.size(), fields2.size());
                for (int i = 0; i < minimum; i++) {
                    int r = compare(soi1.getStructFieldData(o1, fields1.get(i)), fields1.get(i).getFieldObjectInspector(), soi2.getStructFieldData(o2, fields2.get(i)), fields2.get(i).getFieldObjectInspector(), mapEqualComparer, nullValueOpt);
                    if (r != 0) {
                        return r;
                    }
                }
                return fields1.size() - fields2.size();
            }
        case LIST:
            {
                ListObjectInspector loi1 = (ListObjectInspector) oi1;
                ListObjectInspector loi2 = (ListObjectInspector) oi2;
                int minimum = Math.min(loi1.getListLength(o1), loi2.getListLength(o2));
                for (int i = 0; i < minimum; i++) {
                    int r = compare(loi1.getListElement(o1, i), loi1.getListElementObjectInspector(), loi2.getListElement(o2, i), loi2.getListElementObjectInspector(), mapEqualComparer, nullValueOpt);
                    if (r != 0) {
                        return r;
                    }
                }
                return loi1.getListLength(o1) - loi2.getListLength(o2);
            }
        case MAP:
            {
                if (mapEqualComparer == null) {
                    throw new RuntimeException("Compare on map type not supported!");
                } else {
                    return mapEqualComparer.compare(o1, (MapObjectInspector) oi1, o2, (MapObjectInspector) oi2);
                }
            }
        case UNION:
            {
                UnionObjectInspector uoi1 = (UnionObjectInspector) oi1;
                UnionObjectInspector uoi2 = (UnionObjectInspector) oi2;
                byte tag1 = uoi1.getTag(o1);
                byte tag2 = uoi2.getTag(o2);
                if (tag1 != tag2) {
                    return tag1 - tag2;
                }
                return compare(uoi1.getField(o1), uoi1.getObjectInspectors().get(tag1), uoi2.getField(o2), uoi2.getObjectInspectors().get(tag2), mapEqualComparer, nullValueOpt);
            }
        default:
            throw new RuntimeException("Compare on unknown type: " + oi1.getCategory());
    }
}

Example 5 with HiveVarcharObjectInspector

use of org.apache.hadoop.hive.serde2.objectinspector.primitive.HiveVarcharObjectInspector in project hive by apache.

the class ObjectInspectorUtils method hashCodeMurmur.

public static int hashCodeMurmur(Object o, ObjectInspector objIns, ByteBuffer byteBuffer) {
    if (o == null) {
        return 0;
    }
    // Reset the bytebuffer
    byteBuffer.clear();
    switch(objIns.getCategory()) {
        case PRIMITIVE:
            {
                PrimitiveObjectInspector poi = ((PrimitiveObjectInspector) objIns);
                switch(poi.getPrimitiveCategory()) {
                    case VOID:
                        return 0;
                    case BOOLEAN:
                        return (((BooleanObjectInspector) poi).get(o) ? 1 : 0);
                    case BYTE:
                        return ((ByteObjectInspector) poi).get(o);
                    case SHORT:
                        {
                            byteBuffer.putShort(((ShortObjectInspector) poi).get(o));
                            return Murmur3.hash32(byteBuffer.array(), 2);
                        }
                    case INT:
                        {
                            byteBuffer.putInt(((IntObjectInspector) poi).get(o));
                            return Murmur3.hash32(byteBuffer.array(), 4);
                        }
                    case LONG:
                        {
                            byteBuffer.putLong(((LongObjectInspector) poi).get(o));
                            return Murmur3.hash32(byteBuffer.array(), 8);
                        }
                    case FLOAT:
                        {
                            byteBuffer.putFloat(Float.floatToIntBits(((FloatObjectInspector) poi).get(o)));
                            return Murmur3.hash32(byteBuffer.array(), 4);
                        }
                    case DOUBLE:
                        {
                            // This hash function returns the same result as Double.hashCode()
                            // while DoubleWritable.hashCode returns a different result.
                            byteBuffer.putDouble(Double.doubleToLongBits(((DoubleObjectInspector) poi).get(o)));
                            return Murmur3.hash32(byteBuffer.array(), 8);
                        }
                    case STRING:
                        {
                            // This hash function returns the same result as String.hashCode() when
                            // all characters are ASCII, while Text.hashCode() always returns a
                            // different result.
                            Text text = ((StringObjectInspector) poi).getPrimitiveWritableObject(o);
                            return Murmur3.hash32(text.getBytes(), text.getLength());
                        }
                    case CHAR:
                        {
                            Text text = ((HiveCharObjectInspector) poi).getPrimitiveWritableObject(o).getStrippedValue();
                            return Murmur3.hash32(text.getBytes(), text.getLength());
                        }
                    case VARCHAR:
                        {
                            Text text = ((HiveVarcharObjectInspector) poi).getPrimitiveWritableObject(o).getTextValue();
                            return Murmur3.hash32(text.getBytes(), text.getLength());
                        }
                    case BINARY:
                        return Murmur3.hash32(((BinaryObjectInspector) poi).getPrimitiveWritableObject(o).getBytes());
                    case DATE:
                        byteBuffer.putInt(((DateObjectInspector) poi).getPrimitiveWritableObject(o).getDays());
                        return Murmur3.hash32(byteBuffer.array(), 4);
                    case TIMESTAMP:
                        {
                            TimestampWritableV2 t = ((TimestampObjectInspector) poi).getPrimitiveWritableObject(o);
                            return Murmur3.hash32(t.getBytes());
                        }
                    case TIMESTAMPLOCALTZ:
                        return Murmur3.hash32((((TimestampLocalTZObjectInspector) poi).getPrimitiveWritableObject(o)).getBytes());
                    case INTERVAL_YEAR_MONTH:
                        byteBuffer.putInt(((HiveIntervalYearMonthObjectInspector) poi).getPrimitiveWritableObject(o).hashCode());
                        return Murmur3.hash32(byteBuffer.array(), 4);
                    case INTERVAL_DAY_TIME:
                        byteBuffer.putInt(((HiveIntervalDayTimeObjectInspector) poi).getPrimitiveWritableObject(o).hashCode());
                        return Murmur3.hash32(byteBuffer.array(), 4);
                    case DECIMAL:
                        // compatible hash code.
                        return Murmur3.hash32(((HiveDecimalObjectInspector) poi).getPrimitiveWritableObject(o).getInternalStorage());
                    default:
                        {
                            throw new RuntimeException("Unknown type: " + poi.getPrimitiveCategory());
                        }
                }
            }
        case LIST:
            {
                int r = 0;
                ListObjectInspector listOI = (ListObjectInspector) objIns;
                ObjectInspector elemOI = listOI.getListElementObjectInspector();
                for (int ii = 0; ii < listOI.getListLength(o); ++ii) {
                    // r = 31 * r + hashCode(listOI.getListElement(o, ii), elemOI);
                    r = 31 * r + hashCodeMurmur(listOI.getListElement(o, ii), elemOI, byteBuffer);
                }
                return r;
            }
        case MAP:
            {
                int r = 0;
                MapObjectInspector mapOI = (MapObjectInspector) objIns;
                ObjectInspector keyOI = mapOI.getMapKeyObjectInspector();
                ObjectInspector valueOI = mapOI.getMapValueObjectInspector();
                Map<?, ?> map = mapOI.getMap(o);
                for (Map.Entry<?, ?> entry : map.entrySet()) {
                    r += hashCodeMurmur(entry.getKey(), keyOI, byteBuffer) ^ hashCode(entry.getValue(), valueOI);
                }
                return r;
            }
        case STRUCT:
            int r = 0;
            StructObjectInspector structOI = (StructObjectInspector) objIns;
            List<? extends StructField> fields = structOI.getAllStructFieldRefs();
            for (StructField field : fields) {
                r = 31 * r + hashCodeMurmur(structOI.getStructFieldData(o, field), field.getFieldObjectInspector(), byteBuffer);
            }
            return r;
        case UNION:
            UnionObjectInspector uOI = (UnionObjectInspector) objIns;
            byte tag = uOI.getTag(o);
            return hashCodeMurmur(uOI.getField(o), uOI.getObjectInspectors().get(tag), byteBuffer);
        default:
            throw new RuntimeException("Unknown type: " + objIns.getTypeName());
    }
}