Hello Hussein, I would, of course, be interested in in asynchronously loading referenced resources from both the map and topic level; anything that makes applications move faster is always welcome.
I do not, however, believe that it will address the issue that dogged the Navigation Pane, and that will therefore now dog the map view now that it resolves titles; the amount of content that has to be downloaded (or at least checked for freshness) and then read in order to display the view will impose a hard cap on just how fast it can possibly resolve. Even when I'm working on a local set of files (i.e. no involvement with the CCMS) there can be a significant lag when opening the Navigation Pane on a large ditamap. I have well-written sql queries that can return me a list of every title associated with a monster ditamap in my CCMS in a heartbeat; no serial opening and closing of every topic in a local cache is ever going to be able to complete with that from a performance perspective. This, I think, is at the root of the API request from my vendor. From a performance perspective it is always preferable to leave content on the server when possible, and the Navigation Pane was an example where it would be possible to gather all of the needed data with a couple of canned sql queries. The Image loading works extremely well, but images do not need to be resolved in order to load all of the information *about* the image and therefore make it possible to display the page sans images; when you need to download every topic locally in a 1000+ topic ditamap in order to query for the titles then unless you can load the resolved view incrementally, you're always going to be in for a significant wait. Mind you, I'd be happy to be proven wrong about that. Thanks, Jeff. -----Original Message----- From: Hussein Shafie [mailto:huss...@xmlmind.com] Sent: Wednesday, July 6, 2016 1:17 AM To: Jeff Hooker Cc: 'xmleditor-support@xmlmind.com' Subject: Re: [XXE] Navigation pane EXTERNAL EMAIL Jeff Hooker wrote: > In the event that the topics are on a remote server or being accessed through > a v-drive plugin, does XMLmind need to open every single topic in order to be > able to get the titles or is there a more effective way of querying the topic > set and populating the titles? The implementors of your Virtual Drive plug-in have already requested a special API to be able to implement a more effective way of querying the topic set and populating the titles. Jeff Hooker wrote: > > I missed your answer to the question below in your earlier email. Please > don't bother answering the same question again. > My answer was indeed: --- This excessive load time is really specific to your working environment. When a DITA map is loaded, all the referenced topic files have to be opened to read their titles. The topic files loaded this way are of course cached for later reuse (Options|Preferences, General|Features, "Enable the Document Cache Indicator" -- http://www.xmlmind.com/xmleditor/_distrib/doc/help/generalOptions.html#featuresOptions -- would show you this). One way to accelerate opening DITA maps in XXE would be to asynchronously load the referenced topic files. --- We do not plan to create a new API for use by Virtual Drive plug-in implementors. It would be an awkward API and no one, except may be your Virtual Drive plug-in implementors, would use it. However it's always fun to solve performance problems. What do you think about asynchronously loading the referenced topic files to get their titles? We have already implemented a similar feature for images stored on slow remote servers. It works great. See 7.7.4. Preferences related to images, Load images in a background task in http://www.xmlmind.com/xmleditor/_distrib/doc/help/viewOptions.html#viewOptions_images -- XMLmind XML Editor Support List xmleditor-support@xmlmind.com http://www.xmlmind.com/mailman/listinfo/xmleditor-support
