BaseX-Talk July 2022

basex-talk@mailman.uni-konstanz.de

20 participants
22 discussions

Adding Attributes After the Fact: How To?
by Eliot Kimber 16 Jul '22

16 Jul '22

In my Mirabel project I’m loading large quantities of DITA content (40K topics per content database). I’m turning off DTD parsing because otherwise it takes hours to load the content (I haven’t had bandwidth to figure out how to use Xerces grammar caching with BaseX, which would solve the problem). DITA uses an attribute-based mechanism (@class) to associate elements with their base types. For example, a <concept> element is a kind of <topic>, as indicated by the @class value “- … [View More]

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RESTXQ: How to Reflect Progress of Long-Running Querries
by Eliot Kimber 16 Jul '22

16 Jul '22

In my Mirabel system, I have multiple BaseX instances to handle long-running processes while a primary instance serves the web pages. For these background processes I’d like to be able to show progress in the main web app. My question: what are the options for doing this? I can imagine having a database to write progress data to and then read from that in my RESTXQ page (maybe using a simple JavaScript to poll the app). Are there better techniques? I’m trying to limit the amount of … [View More]

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Possible to Speed Up This Lookup?
by Eliot Kimber 16 Jul '22

16 Jul '22

I generate a “where used” index as an XML doc in a separate database. I’m then doing lookups against this index like this where $node is the element I want to find the index entry for: collection($rkDatabase)/doc-where-used-index/where-used-entry[string(@key) eq string(db:node-id($node))] Where the markup is shown in [1] below. Using prof:track() I’m measuring a consistent 0.036 seconds per lookup, which seems very slow. Db:node-id() is instantaneous so the cost must be in the XPath … [View More]itself. I’ve tried different variations on the predicate but nothing makes a measurable difference. There must be a more efficient way to do this kind of lookup or a better way to structure my index XML so that the lookup is optimized. Or is this something that could be affected by my index settings at the database level? Thanks, Eliot [1] Where-used index markup: <doc-where-used-index> <where-used-entry key="9151416" tagname="map" class="map/map" id=""> <title> <ph keyref="workplace-safety-management"/> </title> <conrefs/> <topicrefs> <noderef node-id="672471" database="tokyo" tagname="mapref" baseuri="/tokyo/qa-sushma-sundareswaran.ditamap" href="workplace-service-delivery-core.ditamap"/> <noderef node-id="898684" database="tokyo" tagname="mapref" baseuri="/tokyo/qa-ankit-jaiswal.ditamap" href="workplace-service-delivery-core.ditamap"/> <noderef node-id="9524996" database="tokyo" tagname="mapref" baseuri="/tokyo/workplace-service-delivery-suite.ditamap" href="workplace-service-delivery-core.ditamap"/> </topicrefs> <doc> <noderef node-id="9151416" database="tokyo" tagname="map" baseuri="/tokyo/workplace-service-delivery-core.ditamap"/> </doc> <xrefs/> <referencing-maps> <noderef node-id="672452" database="tokyo" tagname="map" baseuri="/tokyo/qa-sushma-sundareswaran.ditamap"/> <noderef node-id="898667" database="tokyo" tagname="map" baseuri="/tokyo/qa-ankit-jaiswal.ditamap"/> <noderef node-id="9524980" database="tokyo" tagname="map" baseuri="/tokyo/workplace-service-delivery-suite.ditamap"/> </referencing-maps> </where-used-entry> … </doc-where-used-index> _____________________________________________ Eliot Kimber Sr Staff Content Engineer O: 512 554 9368 M: 512 554 9368 servicenow.com<https://www.servicenow.com> LinkedIn<https://www.linkedin.com/company/servicenow> | Twitter<https://twitter.com/servicenow> | YouTube<https://www.youtube.com/user/servicenowinc> | Facebook<https://www.facebook.com/servicenow> [View Less]

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file:resolve-path, ".." steps
by Hans-Juergen Rennau 11 Jul '22

11 Jul '22

Dear BaseX people, extension function file:resolve-path() shows a behaviour which appears to me inconsistent and probably not intended: - if called with a single parameter, a path containing ".." is resolved as expected- if called with two parameters, the ".." steps are not resolved. I would expect the resolution of ".." steps to be always a part of path resolution. Example: cd C:\a\b\c file:resolve-path('../x') =>C:\a\b\x file:resolve-path('../x', 'file:///C:/a/b/c/') =>C:\a\b\c\..\x … [View More]

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Explicit cacheing with store: vs. implicit cacheing in RESTXQ ?
by Majewski, Steven Dennis (sdm7g) 11 Jul '22

11 Jul '22

Thinking about use cases for the new store: cacheing module, and wondering if I understand the cacheing already provided in RESTXQ. https://docs.basex.org/wiki/RESTXQ#Preliminaries <https://docs.basex.org/wiki/RESTXQ#Preliminaries> So in a production environment where I have disabled monitoring for file changes by setting PARSERESTXQ to -1, variables declared in prolog of library modules have a long lifetime and are only recalculated when the modules are reloaded and parsed — which … [View More]

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Email integration
by Ben Pracht 09 Jul '22

09 Jul '22

Hi, This may seem a bit unusual, but I like the parsing capabilities of XQuery and I'd like to use it for my email. I'd like to have BaseX log into my IMAP server, fetch emails and put each email as a separate XML document. I'm willing to have it ignore attachments if necessary. Then, I'd like to query my email using normal BaseX XQuery. This isn't for normal emails, but I wanted to be able to query it for automated emails and for one-off type queries. Oh, to make things more difficult, I'm … [View More]

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Same prefix, same functions, different namespace?
by Graydon Saunders 08 Jul '22

08 Jul '22

Hello -- As part of a long and involved conversion process, the content starts in a lax version of the target vocabulary and proceeds to a strict version of the target vocabulary. By local convention, the two vocabularies use the same namespace prefix but are not the same namespace and use different namespace URIs. Ideally, I would be using the same test functions in a lot of cases, only changing the association for the prefix depending on the data. So far as I know, there isn't any way to … [View More]

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Java 8 and XML Catalog
by Lizzi, Vincent 07 Jul '22

07 Jul '22

Hi Christian, I'm having trouble getting an XML Catalog to work in BaseX 9.7.2 running on Java 8. The XML Catalog is working properly in BaseX and Saxon using Java 17. However, if I keep everything the same and switch to Java 8 the XML Catalog doesn't work. The error messages when running on Java 8 indicate that the XML Catalog is not being used at all. The obvious solution of updating the environment to a more recent version of Java is not so easy in this case. I have the XML Catalog … [View More]

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RESTXQ: Serve images that are not within the web app dir
by Eliot Kimber 07 Jul '22

07 Jul '22

In my RESTXQ application, I have the XML content in a database but the images referenced from that content is only in a local clone of the git repository from which the XML content is loaded into BaseX. I would like to serve the images from RESTXQ-generated HTML Pages but I’m not sure how to do that other than to use URLs that include the base64 image data directly. What I think I need to do is implement a RESTXQ end point that handles image URLs that I know how to convert into image files on … [View More]

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Re: [basex-talk] Sym links in BaseX 9.7.2
by Maud Ingarao (IHRIM - ENS de Lyon) 07 Jul '22

07 Jul '22

Hi Christian :-) The prior version we were using was 9.3.2 and everything worked fine. Now with 9.7.2 I get this error : Stopped at /path/to/basex/webapp/synopsx/workspace/bvm/models/mixed.xqm, 38/55: [XQST0059] Could not retrieve module: /path/to/basex/webapp/synopsx/models/synopsx.xqm. although nothing changed in our webapp. Thanks a lot, and all the best :-) Maud

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BaseX-Talk July 2022