BaseX-Talk April 2016

basex-talk@mailman.uni-konstanz.de

37 participants
48 discussions

Re: [basex-talk] XdmItem
by Kendall Shaw 12 Apr '16

12 Apr '16

The default answer is effectively no. From: <basex-talk-bounces(a)mailman.uni-konstanz.de<mailto:basex-talk-bounces@mailman.uni-konstanz.de>> on behalf of Kendall Shaw <kendall.shaw(a)workday.com<mailto:kendall.shaw@workday.com>> Date: Wednesday, April 6, 2016 at 3:38 PM To: "basex-talk(a)mailman.uni-konstanz.de<mailto:basex-talk@mailman.uni-konstanz.de>" <basex-talk(a)mailman.uni-konstanz.de<mailto:basex-talk@mailman.uni-konstanz.de>> Subject: [basex-talk] XdmItem Is XdmItem going to move out of tests to be part of the API at some point? Kendall

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Re: [basex-talk] RESTXQ and Website-Building
by Marco Lettere 12 Apr '16

12 Apr '16

Hi Günter, sorry for the delay but here you go with a very small example that should show off what I told. You can copy the .xqm files into the webapp dir of a basex installation and and the .css files into the corresponding static folder. Then invoke the "entrypoint" RestXQ from within your browser with an url similar to http://localhost:8984/myapp/page1?user=Marco As you can see the HTML page built from the entrypoint is composed of three parts. One that selects the styles to apply according to the user being anonymous or not. Then a common header markup is generated and finally a dynamic part that depends on the page element of the path. It's really not anything special but nevertheless it should be useful in clarifying the approach. Hoffe es gefaellt dir. Herzliche Gruesse, Marco. On 10/04/2016 17:36, Günter Dunz-Wolff wrote: > Hi Marco, > > it’s me again. Just to be more specific, I’m especially interested in your approach > - to pass parametric values into the „exploded“ modules > - to map requests to module invocations by exploiting REST path segments > > It would be really helpful, to get some snippets of your code. Tanks a lot. > > Ciao, Günter > >> Am 08.04.2016 um 10:13 schrieb Marco Lettere <m.lettere(a)gmail.com>: >> >> Hi Günter, >> we have worked on several web applications that include a frontend and we are very happy with using basex for serving both static (scripts, css, images) and dynamic (markup) content. >> One pattern that we've used often and that we find very productive is to split markup content into different .xqm modules. >> The modules are called through the xquery:invoke function in order to "explode" their output into the main page. >> In our opinion this is a good approach because it is applicable recursively to sub-modules. Content of modules may be dynamic as well and parametric values are passed into the module through external variables. >> Finally, it is possible to set up an automatic way of mapping requests to module invocations by exploiting REST path segments for example. >> I hope I have been able to explain it well enough otherwise, just let me know and as soon as possible I'll provide an example code snippet that demonstrates the approach. >> >> Ciao, >> Marco. >> >> On 07/04/2016 17:08, Günter Dunz-Wolff wrote: >>> Hi, >>> >>> I'm planning to relaunch my website (kleist-digital.de) with OpenShift as BaseX-Server. After some difficulties and a lot of help from Christian and Andy the server is running now. >>> >>> I took a look at RESTXQ and it seems quite interesting to build the whole frontend for my app with it. Some questions I have: >>> >>> 1. I'm working with a basic layout for all pages. This basic layout-file includes header, footer and changing content. What is the best approach with RESTXQ. How to build a modular concept with RESTXQ? >>> >>> 2. Is there any site-structure preferred? >>> >>> 3. Most of the site is dynamic. But I need also static files like images, css, javascript. Where to put them best (so that the Openshift-Server can handle them)? >>> >>> Thanks for any advice and help. >>> >>> Günter >>

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Re: [basex-talk] Problem deleting jar packaged item from repo
by Gunther Rademacher 12 Apr '16

12 Apr '16

3 7

Re: [basex-talk] Issue with db:add via restxq in 8.4.2
by Vincenzo Cestone 12 Apr '16

12 Apr '16

Thank you Christian, I checked the issue of the subject with the latest release and now it is working. But the BaseX843-20160407 release introduces a different issue (supposedly), that is a java.lang.StackOverflowError exception you can reproduce implementing a restxq with a recursive function, as in the following example: --- module namespace api = "urn:api"; declare function api:fact($val) { if ($val = 1) then 1 else $val * api:fact($val - 1) }; declare %rest:path('myapi/{$v}') %rest:GET function api:impl_GET($v) { <result>{api:fact($v)}</result> }; --- Regards, Vincenzo 2016-04-06 15:48 GMT+02:00 Christian Grün <christian.gruen(a)gmail.com>: > Il problema è risolto [1,2]; grazie di nuovo. > > [1] https://github.com/BaseXdb/basex/issues/1281 > [2] http://files.basex.org/releases/latest/ > > > > On Tue, Apr 5, 2016 at 12:53 PM, Christian Grün > <christian.gruen(a)gmail.com> wrote: > > Thanks Vincenzo, > > > > I could reproduce the problem [1], and we’ll fix it soon. > > > > Generally, I’d recommend you to avoid declaration of variables that > > will never be used. You could rewrite your code as follows: > > > > db:add('testdb', <aaa/>, '111.xml'), > > <ok/> > > > > Hope this helps, > > Christian > > > > [1] https://github.com/BaseXdb/basex/issues/1281 > > > > > > > > On Mon, Apr 4, 2016 at 10:30 AM, Vincenzo Cestone <v.cestone(a)gmail.com> > wrote: > >> Hi guys, > >> > >> in the new basex 8.4.2 version I cannot write on the db via restxq. > >> > >> For example if you create an empty 'testdb', > >> set in the .basex conf file the option MIXUPDATES = true, > >> and call the '/dbaddtest' restxq implemented as in the following: > >> --- > >> module namespace o = "test"; > >> > >> declare > >> %rest:path("/dbaddtest") > >> %rest:GET > >> function o:dbaddtest() { > >> let $o := db:add('testdb', <aaa/>, '111.xml') > >> return <ok/> > >> }; > >> --- > >> it will not work in the basex 8.4.2 i.e. the document is not added to > the > >> db, but it will return <ok/> without errors. > >> On the contrary the db:add executed in the BaseX.jar client is working > well. > >> > >> And also the above restxq code is working as expected in the basex 8.3.1 > >> version. > >> > >> Thank you in advance. > >> > >> Regards, > >> Vincenzo > >> > >> >

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insert an xml structure in database
by Oleg Duvanayev 12 Apr '16

12 Apr '16

2 2

Re: [basex-talk] XLSX to XML
by Dirk Kirsten 11 Apr '16

11 Apr '16

Hello Florian, please remember to always include the list when replying as it allows others to benefit from our exchange as well and also allows others to help you. I just want to point out, again, that you it doesn't make sense to say "convert the excel file to xml", because it already is XML. Yes, there might be multiple XML files and they reference each other, but this is just a very normal thing for XML and for every reasonably complex system to reference each other. So I guess what you really want is an XQuery module which allows you to easily manipulate xlsx files without the need to worry about internal ooxml format stuff like shared strings. This if course makes a lot of sense! However, as the format is ridiculously complicated it is a hard task to write a general-purpose library for all kinds of manipulations. As Christian indicated we wrote for ourself some small helpers functions which dies the stuff we need in our projects, but is very far from being complete on the xlsx standard. Cheers Dirk On 04/06/2016 12:35 PM, Florian Eckey wrote: > Hello Dirk, > > thanks. That was my idea as well. But the format xlsx is really complicated, because the content (sheet01.xml) in the cells is referenced to an other document (stringValues.xml) using an index. I guess anyone has implemented a simple xquery to convert the excel file to xml? > But if nobody has done that before, i have to spend time for the implementation on my own. :) > > Thanks, best, > Florian > > > > > Am 06.04.16, 12:26 schrieb "Dirk Kirsten" <dk(a)basex.org>: > >> Hello Florian, >> >> xlsx is just a zip file containing many xml files. you can simply unzip >> the xlsx (e.g. by using the BaseX zip module), modify the xml files >> inside using standard XQuery and rezip it again as xslx. >> >> Cheers >> Dirk >> >> On 04/06/2016 12:18 PM, Florian Eckey wrote: >>> Hi guys, >>> >>> are there any ideas how to convert excel's xlsx (not xls) files to xml >>> with XQuery or to use a Java library which can be imported? It looks >>> like BaseX has no internal functions as for instance MarkLogic. >>> >>> Any ideas or example implementations to do that in XQuery or Java? >>> >>> Best, >>> Florian >> -- >> Dirk Kirsten, BaseX GmbH, http://basexgmbh.de >> |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz >> |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer: >> | Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle >> `-- Phone: 0049 7531 91 68 276, Fax: 0049 7531 20 05 22 >> -- Dirk Kirsten, BaseX GmbH, http://basexgmbh.de |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer: | Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle `-- Phone: 0049 7531 91 68 276, Fax: 0049 7531 20 05 22

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slow GUI-editor when using package-manager eXPath
by Rob Stapper 10 Apr '16

10 Apr '16

Hi Christian, New tools, new challenges. I've rearranged my source-code in packages/libraries conform the eXPath-specs in BaseX now. But since than the GUI-editor is becoming very slow, even unworkably slow. What is causing this and can you give me any tips how speed up the GUI-editor? I've got 7 libraries now. The one with the largest interface counts 11 entries in file:expath-pkg.xml, all public entries, the smallest library counts one entry. TIA, Rob

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RESTXQ path preference
by Tim Thompson 10 Apr '16

10 Apr '16

Hello, Reading the draft RESTXQ spec[1], I have a question about path preference. Namely, can a bare trailing slash serve as a valid path segment? I am thinking about the pattern used by some linked data services to accommodate httpRange-14[2]. For example, VIAF (Virtual International Authority File), a popular service for library data, uses a trailing slash to differentiate between the URI for a real-world object and the URI for the Web resource that represents it. So, a GET request on the URI http://viaf.org/viaf/71387829 triggers a 303 redirect to http://viaf.org/viaf/71387829/ The RESTXQ implementation in BaseX does not seem to permit this pattern at present. If I create a resource function with a path annotation that ends in a trailing slash, the GET request returns 404. Any chance this feature could be supported? :) Best regards, Tim [1] http://exquery.github.io/exquery/exquery-restxq-specification/restxq-1.0-sp… [2] https://en.wikipedia.org/wiki/HTTPRange-14 -- Tim A. Thompson Metadata Librarian (Spanish/Portuguese Specialty) Princeton University Library

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RESTXQ and Website-Building
by Günter Dunz-Wolff 10 Apr '16

10 Apr '16

Hi, I'm planning to relaunch my website (kleist-digital.de) with OpenShift as BaseX-Server. After some difficulties and a lot of help from Christian and Andy the server is running now. I took a look at RESTXQ and it seems quite interesting to build the whole frontend for my app with it. Some questions I have: 1. I'm working with a basic layout for all pages. This basic layout-file includes header, footer and changing content. What is the best approach with RESTXQ. How to build a modular concept with RESTXQ? 2. Is there any site-structure preferred? 3. Most of the site is dynamic. But I need also static files like images, css, javascript. Where to put them best (so that the Openshift-Server can handle them)? Thanks for any advice and help. Günter

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Is Basex scanning static before each http-request?
by Lars Johnsen 08 Apr '16

08 Apr '16

Hi all It seems that BaseX is scanning the webapp directory including static for each request. Is that right? And is it possible to turn it off ? Best, Lars

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BaseX-Talk April 2016