BaseX-Talk

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6 participants
5250 discussions

Using an XSD with BaseX (to provide extra type information)
by Ludovic Kuty 05 Jun '13

05 Jun '13

Hello, I would like to know if BaseX will use the XSD referenced in an XML document to get extra informations about types (he PSVI) and if it will validate the document in the process. If it does so, where do I have to store the XSD ? I would like to store it inside the database itself (or another one). I could also store it in the Web application provided by BaseX and make my URL point to it. In my opinion, the use of the validation module should not be necessary as it should happen automatically. Thank in advance for your insights and informations, Ludovic Kuty

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Logging Modules/Framework for XQuery
by Dustin Schultz 04 Jun '13

04 Jun '13

Hi, I'm wondering if there are any logging frameworks available for XQuery? I've searched around and can't find much other than the built in fn:trace and fn:error functions. I'm looking for something that can log to different levels (e.g. INFO, DEBUG, ERROR) but also be disabled for no output. I was thinking it would be something built around fn:trace and fn:error. I've considered writing a RESTful logging service – have others used this approach? Thanks, Dustin

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led under water light offer
by crystal2 04 Jun '13

04 Jun '13

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Re: [basex-talk] regarding web app. Development REST
by Arve Gengelbach 04 Jun '13

04 Jun '13

Hi Prakash, Perhaps this is interesting for other BaseX users aswell. Nice to hear our slides from the [BaseX User Meetup] at the recent XML Prague helped you. Did the [REST] article from our documentation help you? And regarding RESTXQ: Is there something you missed in the [RESTXQ] article? cheers Arve [BaseX User Meetup] http://files.basex.org/xmlprague2013/ [REST] http://docs.basex.org/wiki/REST [RESTXQ] http://docs.basex.org/wiki/RESTXQ Am 03.06.13 23:28, schrieb Prakash Thapa: > Hi Arve Gengelbach, > I found really nice slide about RESTXQ based web App. development in basex from http://files.basex.org/xmlprague2013/slides/Develop-RESTXQ-WebApps-with-Bas… which I was searching for long time. is there any link exact same format with REST not RESTXQ? git hub link would be great helpful. thank you > > regards > Prakash >

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XML London 2013, 2 days left to register
by Charles Foster 03 Jun '13

03 Jun '13

Calling all XML Aficionados!, XML London is a 2 day XML conference which will be held in central London on the weekend of 15th-16th June. There is a great line up of speakers, with exciting talks about new developments in XML and related technologies, such as XQuery, XSLT, XProc, XForms, the Semantic Web and SPARQL! There will be a Social Dinner on the Saturday night which promises to be great fun with a DemoJam for entertainment!! The full conference programme is available here: http://xmllondon.com/programme.jsp A full conference pass costs just £249 + VAT. Additional Social Dinner tickets for spouses cost just £60 + VAT each. There are student conference passes available at a discounted rate as well as group booking discounts. There are 2 days left to register for the conference to get a guaranteed social dinner place. Our caterers reasonably require 7 days notice of both the delegate numbers and their dinner choices, whilst we may still take Conference registrations after 5th June, we cannot guarantee a Conference Dinner, nor a choice of dinner. Regards, Charles Foster XML London, Programme Committee

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how to find a possibly corrupted node?
by Cerstin Elisabeth Mahlow 31 May '13

31 May '13

Hi, I have several databases basically consisting of several entries like this one: <entry> <lastChange>2013-04-30T08:20:00</lastChange> <user>marcel</user> <phraseme>Ad0190</phraseme> <annotated>no</annotated> <negation>?</negation> <genus>?</genus> <mediality>?</mediality> <meaning>?</meaning> <sentence>?</sentence> <question>?</question> <node>85750</node> <query>[text() contains text ('über' ftand 'den' ftand 'Hals' ftand 'kommen') distance at most 10 words]</query> <p>Gar gewiß hätte sie selbst der Teufel lebendig hingeführt, oder der Donner in die Asche gelegt, oder die Erde lebendig verschluckt, oder den wilden Thieren zum Raub worden, weil sie sich aber der Todten haben angenommen, so konnte sie kein zeitliches Unglück berühren. Nolite timere so fürchtet euch dann nicht, alle Liebhaber der armen Seelen im Fegfeuer, es kann euch so bald kein Unglück über den Hals kommen, die Todten helfen den Lebendigen.</p> <meta>?</meta> <semantics>?</semantics> <comment/> <merged>no</merged> <cite>?</cite> <sem>?</sem> <note/> </entry> For the web-application I run with ExtJS, I extract some data like the values for <user> etc. I also need the text stored in the <p> node, and I use the xquery stored in the <query> node as argument for ft:mark. So this part basically looks like this one: for $i at $p in //entry let $q := $i/query let $annotated := string($i/annotated) let $t := if ($i/p) then $i/p else $i/l let $ft :=concat("ft:mark($binding", $q, ")") let $bm := map{'$binding' := $t} return <div>{if ($annotated = "no") then xquery:eval($ft, $bm) else $t}</div> I get the query and the text and then apply the query to the text depending on the value for <annotation>. This works fine for most of the databases. However, for six or seven, I get a time-out, regardless of the size of the database. It works OK with DB consisting of several hundreds or only a dozen of such entries, but it does not work for the one I attach here as XML source (I created the DB via another xquery with whitespace chopping off and UPDINDEX ON, all indexes have been created. It is valid XML as far as I can see.) I tested it with the GUI, I use BaseX 7.7beta from April 24, with VM=-Xmx512m. If I change the return expression to: return <div>{if ($annotated = "no") then ($q, $t) else $t}</div> I get a result for all entries in about 35ms. And this query plan: Compiling: - simplifying descendant-or-self step(s) - converting descendant::*:entry to child steps - removing redundant $p as xs:integer cast. - atomic evaluation of ($annotated = "no") - inlining let $annotated := fn:string($i/annotated) - atomic evaluation of (fn:string($i/annotated) = "no") - removing variable $annotated - removing variable $ft - removing variable $bm - inlining let $q := $i/query - removing variable $q - inlining let $t := if($i/p) then $i/p else $i/l - removing variable $t Optimized Query: for $i at $p in document-node { "annotate-Ad0190.xml" }/*:root/*:entry return element div { (if((fn:string($i/annotated) = "no")) then ($i/query, if($i/p) then $i/p else $i/l) else if($i/p) then $i/p else $i/l) } Result: - Hit(s): 72 Items - Updated: 0 Items - Printed: 759 KB - Locking: local [annotate-Ad0190] Timing: - Parsing: 0.0 ms - Compiling: 1.14 ms - Evaluating: 34.44 ms - Printing: 7.8 ms - Total Time: 43.4 ms Query plan: <QueryPlan> <GFLWOR> <For> <Var name="$i" id="1"/> <at> <Var name="$p" id="0"/> </at> <IterPath> <DBNode name="annotate-Ad0190" pre="0"/> <IterStep axis="child" test="*:root"/> <IterStep axis="child" test="*:entry"/> </IterPath> </For> <CElem> <QNm value="div" type="xs:QName"/> <If> <CmpG op="="> <FNAcc name="string([item])"> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="annotated"/> </CachedPath> </FNAcc> <Str value="no" type="xs:string"/> </CmpG> <List> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="query"/> </CachedPath> <If> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="p"/> </CachedPath> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="p"/> </CachedPath> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="l"/> </CachedPath> </If> </List> <If> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="p"/> </CachedPath> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="p"/> </CachedPath> <CachedPath> <VarRef> <Var name="$i" id="1"/> </VarRef> <IterStep axis="child" test="l"/> </CachedPath> </If> </If> </CElem> </GFLWOR> </QueryPlan> For the original query, i.e., applying ft:mark, I only get a "Out of main memory error" after roughly 60000ms. I don't see any suspicious going here. Do you have any idea what might be the reason for the time out? All other information I extract are returned in less than 100ms, the ft:mark seems to be the issue. Is there any way I can find out which of the entries is causing the time out? Thanks in advance and best regards Cerstin -- Dr. phil. Cerstin Mahlow Universität Basel Departement Sprach- und Literaturwissenschaften Fachbereich Deutsche Sprach- und Literaturwissenschaft Nadelberg 4 4051 Basel Schweiz Tel: +41 61 267 07 65 Fax: +41 61 267 34 40 Mail: cerstin.mahlow(a)unibas.ch Web: http://www.oldphras.net

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Perl and BaseX question (add document to existing db)
by m4058＠aol.com 30 May '13

30 May '13

I'm trying to add a document to an existing dababase xmark. Any idea on how to do this with Perl? $session->execute("create db database"); (would like the existing database xmark in here) print $session->info()."\n"; # add document $session->add("world/World.xml"); Thanks Mark Shortt

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namespaces and the doc() function: conflicting prefix bindings persist past their scope?
by C. M. Sperberg-McQueen 29 May '13

29 May '13

I'm having a puzzling experience with BaseX 7.6 running under Mac OS X 10.6.8. Consider the following document, in my file system as test.xml: <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <xsd:element name="back"/> <xsd:element name="body"> <xsd:annotation xmlns:xsd="http://www.w3.org/2000/10/XMLSchema"/> </xsd:element> <xsd:element name="bold"/> </xsd:schema> The query doc('.../test.xml')//xs:element returns not three elements, but just the first two. The third element is encountered after the prefix 'xsd' was temporarily rebound to a different namespace, and it is not recognized as being in the same namespace as the other 'element' elements. (Further investigation shows that the system believes it to be in namespace http://www.w3.org/2000/10/XMLSchema.) Some observations: - The behavior has nothing to do with the specific namespace or the fact that the XSD namespace is predefined; analogous behavior occurs with the following document: <a:a xmlns:a="http://example.com/a"> <a:b/> <a:b> <x xmlns:a="http://example.com/x"/> </a:b> <a:b/> </a:a> - If a database is built using the document just given, the query declare namespace foo = "http://example.com/a"; //foo:b returns two elements, not three. In my tests, it appeared not to matter whether I checked or unchecked the 'Use internal XML parser' box; I got two elements either way. - The behavior changes if the document is given literally in the query; the following query returns three {http://example.com/a}b elements, not two: declare namespace foo = "http://example.com/a"; let $doc := <a:a xmlns:a="http://example.com/a"> <a:b/> <a:b> <x xmlns:a="http://example.com/x"/> </a:b> <a:b/> </a:a> return $doc//foo:b Is this a bug, or am I doing something wrong? It looks as if something were going wrong in the XML parser's management of namespace bindings. Thanks for any light you can shed on the matter. In the short run I suppose I can try to revise my XSLT to suppress the unnecessary namespace rebindings. -- **************************************************************** * C. M. Sperberg-McQueen, Black Mesa Technologies LLC * http://www.blackmesatech.com * http://cmsmcq.com/mib * http://balisage.net ****************************************************************

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'http://apache.org/xml/features/xinclude' is not recognized.
by subbarao＠intense.in 28 May '13

28 May '13

Dear Basex, Does basex use any of the external xml parsers when it is running on some application server.In one of my server iam getting this exception org.basex.core.BaseXException: "file:/test/59813751_0.XML": Feature 'http://apache.org/xml/features/xinclude' is not recognized what might be the possible reasons for the above exception. Thanks & Regards Subbu

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Upload non xml files to basex
by nestor vb 27 May '13

27 May '13

Hello everyone: I was just wondering if is it possible to upload another file types to basex, for instance upload an xml with the lyrics of a song an upload a sample mp3 for instance. Regards, Nestor

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