io.questdb.griffin.engine.functions.cast.CastVarcharToIPv4FunctionFactory Maven / Gradle / Ivy
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* Copyright (c) 2014-2019 Appsicle
* Copyright (c) 2019-2024 QuestDB
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* Licensed under the Apache License, Version 2.0 (the "License");
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* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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package io.questdb.griffin.engine.functions.cast;
import io.questdb.cairo.CairoConfiguration;
import io.questdb.cairo.sql.Function;
import io.questdb.cairo.sql.Record;
import io.questdb.griffin.FunctionFactory;
import io.questdb.griffin.SqlException;
import io.questdb.griffin.SqlExecutionContext;
import io.questdb.griffin.engine.functions.constants.IPv4Constant;
import io.questdb.std.IntList;
import io.questdb.std.Numbers;
import io.questdb.std.NumericException;
import io.questdb.std.ObjList;
import io.questdb.std.str.Utf8Sequence;
public class CastVarcharToIPv4FunctionFactory implements FunctionFactory {
@Override
public String getSignature() {
return "cast(Øx)";
}
@Override
public Function newInstance(
int position,
ObjList args,
IntList argPositions,
CairoConfiguration configuration,
SqlExecutionContext sqlExecutionContext
) throws SqlException {
final Function arg = args.getQuick(0);
if (arg.isConstant()) {
final Utf8Sequence value = arg.getVarcharA(null);
if (value == null || value.size() == 0) {
return IPv4Constant.NULL;
}
try {
final int ip = Numbers.parseIPv4(value);
return IPv4Constant.newInstance(ip);
} catch (NumericException e) {
throw SqlException.$(argPositions.getQuick(0), "invalid IPv4 constant");
}
}
return new Func(arg);
}
private static class Func extends AbstractCastToIPv4Function {
public Func(Function arg) {
super(arg);
}
@Override
public int getIPv4(Record rec) {
final Utf8Sequence value = arg.getVarcharA(rec);
return Numbers.parseIPv4Quiet(value != null ? value.asAsciiCharSequence() : null);
}
}
}