On Wed, Mar 04, 2020 at 03:59:29PM -0800, Gary Browne wrote: > How about I describe what I *think* happens, and you can tell me where I'm > wrong, where I'm right (if anywhere!) and anything I'm missing? > > A user issues a request in a browser for something like > https://hdl.handle.net/2123/21886 , which sends a HTTP request to > hdl.handle.net. At CNRI, the handle.net proxies or root handle service > resolve the handle prefix to a homed handle server and forward the request > (UDP on port 2641?) on to it.
Yes, so far this is the way Handle always works. > In this case, this is our standalone handle > server homed to 2123. The Remote-Handle-Resolver plugin in turn forwards > the request on to the DSpace server Correct so far. > where > the handle server on the DSpace server (by some process unknown to me) Nope, there is no Handle server on the DSpace server -- or, there need not be one. The Handle resolver plugin sends an HTTP request to DSpace's web UI (/handleresolver/resolve/**), which dispatches it to org.dspace.app.xmlui.aspect.handle.HandleResolverReader, a Cocoon Reader. This generates the HTTP response body by calling the HandleService to look that handle up in the database's handle table, composing the result into a JSON object, and returning it to the plugin. > resolves the handle to a URL from the database. The DSpace server then > issues this HTTP response back to the requesting client with a DSpace URL. It is the (remote) Handle server which responds to the request with a redirect to the DSpace GUI, having received the URL from DSpace. This is similar to the way that Handle resolution always worked in DSpace, except for the insertion of a kind of remote procedure call machinery which allows the Handle and DSpace services to communicate between separate hosts via network, instead of the Handle server just querying the database itself. -- Mark H. Wood Lead Technology Analyst University Library Indiana University - Purdue University Indianapolis 755 W. Michigan Street Indianapolis, IN 46202 317-274-0749 www.ulib.iupui.edu -- All messages to this mailing list should adhere to the DuraSpace Code of Conduct: https://duraspace.org/about/policies/code-of-conduct/ --- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-tech/20200305150327.GB26670%40IUPUI.Edu.
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