[Springframework-developer] Ldap contribution proposition

[Olivier J. <oli...@pc...>]

Hi,
   in reply to my ldap contribution proposition, here is an archive with
the source code for it (I'm not sure if a diff would have been useful,
as it is only new files).
   Sorry for the delay but I've been sick recently and couldn't make it
as fast as I expected.
   As stated in earlier mails, there is no support for transactions at
all. I tried to mimic as much as possible the jdbc implementation, in
the names, javadoc and such.
   Obviously, there are some large differences, besides transactions.
Operations in ldap aren't as homogeneous as with SQL. On a DirContext,
you have different access point for creation, deletion, retrieving, ...
I have provided a generic entry point in the LdapTemplate.execute which
is parameterized by callback, where you implement a method which is
given a DirContext which is automatically freed. The DirContext instance
is taken from an implementation of ContextSource, which is similar to
the DataSource in the JDBC world. It allows the LdapTemplate to be
reusable as, a new DirContext is retrieved at each call.
   This DirContext is not only a connection to a server, but also a
location inside the directory, it is thus interesting as it allows to
bind a LdapTemplate to a given object via IoC (the UrlContextSource and
RelativeContextSource been classical implementation parametrized by
spring container).
   Next to the execute method, there is a couple of searching methods
wrapper which takes a SearchResultCallbackHandler besides the usual
arguments. This callback is then executed on each hit and a getResult
method on the callback is used to make it the result of the search
method. I find it interesting in terms of reduction of code needed to
make most usual operations.
   Of course, exceptions are (normally) translated from the LDAP specific
world into the generic dao ones (as soon as I'll have the class written,
there is a placeholder for now). Since there are already categorized,
I'm not even sure I need to offer a choice of translater as needed for JDBC.
   I also did a AttributeHelper class to work more easily with attribute
retrieving. Nothing fancy there.

   I would like to know whether it is interesting enough to integrate the
cvs and if the design suits you. I'm far from being the java experts who
lurk on this list. I'm open to any suggestions to improve it.
   Best regards all

Olivier