If you run Apache server at the old location, and the original links and
new links obey one or a few regular patterns, you could use one or a few
RedirectMatch directives.

If there are few patterns, you could use a big enumerated list of simple
Redirect directives.  An ordinary Apache server can easily be loaded with
a million directives; a little slow on 'restart', but very short redirect
times when it comes up.  If you need more than that, you could look into
installing a noid resolver. (google "CPAN noid")

-John

--- On Thu, 30 Aug 2012, Pottinger, Hardy J. wrote:
> Hi, we're in the process of migrating an existing digital library to a new
> platform, and we want to ensure that old URLs continue to resolve to the
> items in the new location. The new digital library will be built on
> Islandora, and I am pretty sure we can just map old URLs to new ones
> within Fedora Commons. But, in case we run into trouble, I was wondering
> if anyone might have some experience with an application that's more
> specific to our use case? Or, heck, if you have already migrated from a
> DLXS-based digital library to an Islandora-based digital library, and have
> already sorted out how to handle redirects, I'd love to hear from you.
> Thanks!
>
> --
> HARDY POTTINGER <[log in to unmask]>
> University of Missouri Library Systems
> http://lso.umsystem.edu/~pottingerhj/
> https://MOspace.umsystem.edu/
> "Debug only code. Comments lie."
>