private Object getLiteralValue()

in paimon-presto-common/src/main/java/org/apache/paimon/presto/PrestoFilterConverter.java [184:244]
50 lines of code
14 McCabe index (conditional complexity)

    private Object getLiteralValue(Type type, Object prestoNativeValue) {
        Objects.requireNonNull(prestoNativeValue, "prestoNativeValue is null");

        if (type instanceof BooleanType) {
            return prestoNativeValue;
        }

        if (type instanceof IntegerType) {
            return Math.toIntExact((long) prestoNativeValue);
        }

        if (type instanceof BigintType) {
            return prestoNativeValue;
        }

        if (type instanceof RealType) {
            return Float.intBitsToFloat(Math.toIntExact((long) prestoNativeValue));
        }

        if (type instanceof DoubleType) {
            return prestoNativeValue;
        }

        if (type instanceof DateType) {
            return Math.toIntExact(((Long) prestoNativeValue));
        }

        if (type instanceof TimestampType || type instanceof TimeType) {
            return TimeUnit.MILLISECONDS.toMicros((Long) prestoNativeValue);
        }

        if (type instanceof VarcharType || type instanceof CharType) {
            return BinaryString.fromBytes(((Slice) prestoNativeValue).getBytes());
        }

        if (type instanceof VarbinaryType) {
            return ((Slice) prestoNativeValue).getBytes();
        }

        if (type instanceof DecimalType) {
            DecimalType decimalType = (DecimalType) type;
            Object value =
                    Objects.requireNonNull(
                            prestoNativeValue, "The prestoNativeValue must be non-null");
            if (Decimals.isShortDecimal(decimalType)) {
                Preconditions.checkArgument(
                        value instanceof Long,
                        "A short decimal should be represented by a Long value but was %s",
                        value.getClass().getName());
                return BigDecimal.valueOf((long) value).movePointLeft(decimalType.getScale());
            }
            Preconditions.checkArgument(
                    value instanceof Slice,
                    "A long decimal should be represented by a Slice value but was %s",
                    value.getClass().getName());
            return new BigDecimal(
                    Decimals.decodeUnscaledValue((Slice) value), decimalType.getScale());
        }

        throw new UnsupportedOperationException("Unsupported type: " + type);
    }