Hi Matthew,
the attribute OID is unique to the actual attribute type, whereas the
Syntax is the structure of the data; e.g. 'jpegPhoto' is a type of data,
but you might have attributes 'userThumbnail', 'staffPhoto' or even
'jpegPhoto'(as an attribute). It's a bit confusing that the attribute name
and the syntax name are so similar!
If you're looking for some code to get you started, try
com.ca.commons.jndi.SchemaOps - you intialise a SchemaOps object with a
jndi context and you should be able to read out a whole lot of schema
info.
Have a look at the expandAllAttributes() method in
com.ca.commons.naming.DXAttributes for example usage:
(schema is a schemaOps object)
Attributes ocAttrs =
schema.getAttributes("ClassDefinition/" + objectClass);
Attribute mustAtt = ocAttrs.get("MUST"); // get mandatory
attribute IDs
Attribute mayAtt = ocAttrs.get("MAY"); // get optional
attribute IDs
cheers,
- Chris
P.S. you should note that reading schema in general is a bit of a black
art; if you're using a 'normal' directory you should be able to read it off
from the 'subschema subentry', but some directories with an X.500 heritage
can actually have different schemas in different sub-trees!
On 8 November 2012 06:57, Matthew Abbott <dduck1...@gmail.com> wrote:
> Chris,
>
> I would like to do the full schema and cache it as well, but for now a
> particular entry would be good.
> In oracle my dn would be cn=matthew.abbott,cn=users,dc=rampod,dc=net
>
> I have a DirContext object and was looking in JX for some examples of
> how you were listing all the attributes.
>
> I know there is a MUST/MAY etc with attributes and such too.
>
> So, two things..
> 1. if i pass in my DN to my user account, id like to get a list of
> all the attributes by looking at the schema for that entry.
> 2. yes about your non-string attributes. I can look at the syntax
> Strings you are right.
> (
> http://docs.oracle.com/cd/B28196_01/idmanage.1014/b15998/schema_overview.htm
> )
>
> Question..
> Syntax says 1.3.6.1.4.1.1466.115.121.1.28 for jpegPhoto, but it says
> on the Attribute page the Attribute OID is 0.9.2342.19200300.100.1.60
> What is the difference here?
>
> 1.3.6.1.4.1.1466.115.121.1.5 is binary, but there are other binary
> syntax like jpegPhoto.
>
> -Matthew
>
>
> On Wed, Nov 7, 2012 at 2:46 PM, Chris Betts <pega...@gmail.com> wrote:
> > Hi Matthew,
> >
> > just to clarify, you're basically trying to download the full schema?
> > Or just the schema a particular entry?
> >
> > If the latter, it's a multi-step process; read the entries object
> > classes, and then look each of those up in turn.
> >
> > In general, finding 'non-string' attributes is a bit tricky, but not
> > conceptually hard:
> > step 1: find object classes
> > step 2: find all attributes (by looking up the schema)
> > step 3: look up each attribute syntax (by looking up the schema)
> > step 4: compare this syntax with the 'standard' string syntaxes (you
> can
> > hard code these, they don't usually change); if it isn't one of those
> it's
> > 'non-string'!
> >
> > When you look at JX code it can be a little confusing, as we try to
> cache
> > a lot of this stuff so that we're not always interrogating the schema
> > (that's the reason for the slow initial connection; JX slurps down the
> > schema when we first connect).
> >
> > Anyway, let me know if this is the sort of thing you're trying to do
> and
> > I'll chase down the exact code in JX
> >
> > - Chris
> >
> >
> > On 8 November 2012 05:29, Matthew Abbott <dduck1...@gmail.com> wrote:
> >>
> >> Chris,
> >>
> >>
> >> I have emailed you before on my hotmail account (abbo...@hotmail.com)
> >> but I decided to send from my gmail account.
> >> Im back to working with the Oracle LDAP schema.
> >>
> >> I still have not been able to point it to a DN and get ALL the
> >> attributes available. Everything I try is getting the attributes that
> >> have a value assigned to them.
> >> Also, I wondered if there was a way to go out and list the attributes
> >> that are binary.
> >>
> >> http://docs.oracle.com/javase/jndi/tutorial/ldap/misc/attrs.html
> >>
> >> If you scroll down it lists the binary attributes and it says there is
> >> not a programmatic way to determine if the syntax is nonstring. It
> >> says The LDAP service provider has a built-in list of attribute names.
> >> How does one get to this list using Java?
> >>
> >> I was looking at your SchemaOps java code, but haven't been successful
> >> yet.
> >>
> >> Also, as a side note..in the SchemaOps.java the comments for
> >> getSpecificName() and getTypeName() are the same. Is this correct?
> >>
> >> Any help is appreciated, and I appreciate your past help greatly!!
> >>
> >> -Matthew
> >
> >
> >
> >
> > --
> > Dr Christopher Betts
> > Pegacat Software
> > Melbourne, Australia
> > m: 0408 533 456
>
--
Dr Christopher Betts
Pegacat Software
Melbourne, Australia
m: 0408 533 456
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