Examples with ScalarOperator com.facebook.presto.spi.function.ScalarOperator used on opensource projects

Example 26 with ScalarOperator

use of com.facebook.presto.spi.function.ScalarOperator in project presto by prestodb.

the class IpAddressOperators method castFromVarbinaryToIpAddress.

@ScalarOperator(CAST)
@SqlType(StandardTypes.IPADDRESS)
public static Slice castFromVarbinaryToIpAddress(@SqlType("varbinary") Slice slice) {
    if (slice.length() == 4) {
        byte[] address = slice.getBytes();
        byte[] bytes = new byte[16];
        bytes[10] = (byte) 0xff;
        bytes[11] = (byte) 0xff;
        arraycopy(address, 0, bytes, 12, 4);
        return wrappedBuffer(bytes);
    } else if (slice.length() == 16) {
        return slice;
    } else {
        throw new PrestoException(INVALID_CAST_ARGUMENT, "Invalid IP address binary length: " + slice.length());
    }
}