Object castOrConvertToType(SessionInterface session, Object a, Type otherType, boolean cast) {
BlobData b;
if (a == null) {
return null;
}
switch (otherType.typeCode) {
// non-SQL feature, for compatibility with previous versions
case Types.SQL_VARCHAR:
case Types.SQL_CHAR:
{
b = session.getScanner().convertToBinary((String) a);
otherType = getBinaryType(Types.SQL_VARBINARY, b.length(session));
break;
}
case Types.SQL_BIT:
{
b = (BlobData) a;
otherType = getBinaryType(Types.SQL_VARBINARY, b.length(session));
break;
}
case Types.SQL_BINARY:
case Types.SQL_VARBINARY:
case Types.SQL_BLOB:
b = (BlobData) a;
break;
default:
throw Error.error(ErrorCode.X_22501);
}
if (precision == 0) {
return b; // never a blob
}
if (b.length(session) > precision && b.nonZeroLength(session) > precision) {
if (!cast) {
throw Error.error(ErrorCode.X_22001);
}
session.addWarning(Error.error(ErrorCode.W_01004));
}
if (otherType.typeCode == Types.SQL_BLOB) {
byte[] bytes = b.getBytes(session, 0, (int) precision);
b = new BinaryData(bytes, false);
}
switch (typeCode) {
case Types.SQL_BINARY:
{
if (b.length(session) > precision) {
byte[] data = b.getBytes(session, 0, (int) precision);
b = new BinaryData(data, false);
} else if (b.length(session) < precision) {
byte[] data = (byte[]) ArrayUtil.resizeArray(b.getBytes(), (int) precision);
b = new BinaryData(data, false);
}
return b;
}
case Types.SQL_VARBINARY:
{
if (b.length(session) > precision) {
byte[] data = b.getBytes(session, 0, (int) precision);
b = new BinaryData(data, false);
}
return b;
}
default:
}
throw Error.error(ErrorCode.X_22501);
}
