Re: [Mibble-users] problem load mib files

[Per Cederberg]

Hi Yumei,

On Fri, 2004-01-30 at 19:51, Yumei Zhang wrote:
> Hi,
> 
> I am using Mibble 2.2 on Windows 2000.  I have following questions:
> 
> 1. I am trying to load multiple mib files. I first load IPITEK-SMI_MIB 
> which is passed. But the second one I get the following error in console:
> 
> Error: in IpitekHBR110trap.mib: line 18:
>       couldn't fine imported MIB: IPITEK-SMI
>                      FROM IPITEK-SMI;
> 
> all files are in the same directory with class file. 
> The IPITEK-SMI mib name is same as the file name.
> I try to set the parent directory for mib files, it still doesn't work.
> 
> How do I load sereval mib files together?

Normally it should be no problem doing this, as long as the files
are named *exactly* as the MIB they represent. I.e. in your case
the SMI mib should be named "IPITEK-SMI.mib" or similar (the 
extension is ignored). In your case the file name uses an "_" 
instead of a dot (".") which is why Mibble can't find it.

Anyway, in a future version this will be fixed by allowing you
to preload files with any name and having Mibble correctly 
identify them.

> 2. For the successful loaded IPITEK-SMI mib, I get all symbols. 
> I am trying to cast each individual symbol to MibValueSymbol object, 
> I get InvalidClassCastException. I can cast it to MibSymbol object. 
> But that is not what I want. Do I need to implement my own MibType, 
> MibValue, constants,  etc.  class? If so, which class I should 
> extends?

Ok, maybe the documentation needs some improvement here. The
thing is simply that a MIB contains *two* types of symbols --
MibTypeSymbol and MibValueSymbol. In order to get only the
value symbols, you must filter the symbols returned from the
Mib class with instanceof:

   if (sym instanceof MibValueSymbol) {
       ... do something nice ...
   }

Hope this helps!

Cheers,

/Per

PS. Don't worry if I'm a bit slow responding to mails the upcoming
    couple of weeks. I've just moved to Madrid  (Spain, Europe) and
    haven't got a decent internet connection yet... :-(