BaseX-Talk

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8 participants
5255 discussions

Re: [basex-talk] Reg : Try tail recursion issue
by Christian Grün 06 Jan '23

06 Jan '23

Hi Chandrasekhar (cc to the list), Can the behavior be reproduced with the latest version of BaseX? Best, Christian On Wed, Jan 4, 2023 at 10:34 AM chandra sekhar n <vcsred(a)gmail.com> wrote: > > Dear Christian, > 1)We are using java,and getting connection using ClientSession and after that we are adding xml to collection using below methods > cliectsession.add("<<FILENAME>>", <<INPUTSTREAM OBJECT>>) OR cliectsession.execute("ADD <<XML PATH>>"); > 2) Using basex 9.4.5 > 3) I am attaching full stack trace . > Regards, > Chandrasekhar > > On Wed, Jan 4, 2023 at 1:37 PM Christian Grün <christian.gruen(a)gmail.com> wrote: >> >> Hi Chandrasekhar, >> >> I’m pretty sure there is a solution, bit we definitely need more information… >> >> Which command or operation is responsible for the exception? >> How does the full stack trace look like? >> Do you use the latest version of BaseX? >> >> Best, >> Christian >> >> >> >> chandra sekhar n <vcsred(a)gmail.com> schrieb am Mi., 4. Jan. 2023, 07:08: >>> >>> Dear team, >>> We are facing the issue below when we add more than 1 lakh xml to the collection,is there any solution? >>> >>> issue : org.basex.core.BaseXException: Stack Overflow: Try tail recursion? >>> >>> Regards, >>> Chandrasekhar

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Reg : Try tail recursion issue
by chandra sekhar n 04 Jan '23

04 Jan '23

Dear team, We are facing the issue below when we add more than 1 lakh xml to the collection,is there any solution? issue : org.basex.core.BaseXException: Stack Overflow: Try tail recursion? Regards, Chandrasekhar

2 1

db:lock
by Ветошкин Владимир 01 Jan '23

01 Jan '23

3 7

Plot visualization of unstructured data
by Marco Asa 01 Jan '23

01 Jan '23

Hello Everyone, I'm quite new to all of this but I am trying to setup a database in XML for logging some process data and I am planning to use baseX for polling Xqueries. While testing BaseX i was also amazed by the visualization functions, I have however a doubt on plot which can be easily explained looking at the screenshot at this link <https://photos.app.goo.gl/P2kETJLZoxWBhFHe8> In the data tree you can see I have two branches which present both the attributes @BE_T and @stress_as_grown. In the plot nonetheless only the point corresponding to the values of the first branch is shown. At the contrary, the explorer window present both pairs of values. Is there any way I can plot all the occurences of the selected attrubutes and not just the first one occurring?. Thanks for your help, Best regards, -- Lucas

2 1

Possible to get line number of node?
by Eliot Kimber 22 Dec '22

22 Dec '22

I’m pretty sure the answer is “no”, but is there any way from BaseX 9.6 to get the source line number a given node starts on? My use case is I’m looking for specific elements and making a report of documents that contain them and identifying information about the elements to help with finding them outside of BaseX (i.e., in Oxygen where the authoring happens). I’m parsing with the “trim whitespace” option turned off and I’m not doing any DTD-aware parsing, so the elements as loaded into the database will match the source (no additional attributes or anything). So at least in theory BaseX could maintain accurate line numbers. These elements don’t have @id attributes so no natural way to identify them, so it would be useful to be able to report the source line number as a guide to people fixing these elements. I didn’t see anything in the docs so I thought I’d ask just in case I’ve missed some trick. Thanks, E. _____________________________________________ 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>

4 6

Scope of a xPath variable
by Leo Studer 20 Dec '22

20 Dec '22

Hello Cracks ;-) In the code below I encounter the problem, that I have to define the same xPath function variable $organizations twice and I do not understand why. Running the code with the newest versions of BaseX or with Saxon EE, I get a runtime error when I leave the second definition of $organizations out. Any explanation? Thanks in advance. Happy Holidays Always, Leo xquery version "3.1" encoding "UTF-8"; declare variable $doc := doc("factbook.xml"); element Memberships { let $membershipPotentcy := function($orgs){if (count($orgs)le 0) then 'none' else if (count($orgs) le 5) then 'few' else 'many'} let $organizations := function($country){$doc//organization[members/@country = $country/@id]/@abbrev/string(.)} for $countries in $doc//country group by $mp:= $membershipPotentcy($organizations($countries)) order by $mp return element {$mp} { for $country in $countries let $organizations := function($country){$doc//organization[members/@country = $country/@id]/@abbrev/string(.)} order by $country/@name return <country>{$country/@name, $organizations($country)}</country> }}

5 8

What ever happened to the idea of exposing BaseX+FS as a Fuse filesystem?
by Alejandro Garcia 19 Dec '22

19 Dec '22

I've been reading Alexander Holupirek, 2012: Declarative Access to Filesystem Data Thesis and I think it is very interesting and very relevant today in an era of people wanting to build a "second brain". Thanks in advance

2 1

Potential bug?
by Philippe Pons 15 Dec '22

15 Dec '22

Hi all, I tried to replace a database in the BaseX Database Administration (dba). A simple task that I often do. But this time, I get this message: Unexpected error: Improper use? Potential bug? Your feedback is welcome: Contact:basex-talk@mailman.uni-konstanz.de Version: BaseX 9.2.1 Java: Oracle Corporation, 1.8.0_231 OS: Linux, amd64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: 1 at org.basex.io.random.TableDiskAccess.fpre(TableDiskAccess.java:507) at org.basex.io.random.TableDiskAccess.cursor(TableDiskAccess.java:468) at org.basex.io.random.TableDiskAccess.read1(TableDiskAccess.java:156) at org.basex.data.Data.kind(Data.java:304) at org.basex.query.value.node.DBNode.<init>(DBNode.java:50) at org.basex.query.value.seq.DBNodeSeq.get(DBNodeSeq.java:139) at org.basex.query.value.seq.DBNodeSeq.get(DBNodeSeq.java:164) at org.basex.query.func.db.DbOpen.value(DbOpen.java:19) at org.basex.query.func.StandardFunc.optimize(StandardFunc.java:82) at org.basex.query.expr.Arr.compile(Arr.java:43) at org.basex.query.expr.path.Path.compile(Path.java:129) at org.basex.query.expr.If.compile(If.java:58) at org.basex.query.func.StaticFunc.comp(StaticFunc.java:69) at org.basex.query.QueryCompiler.compile(QueryCompiler.java:114) at org.basex.query.QueryCompiler.compile(QueryCompiler.java:105) at org.basex.query.QueryContext.compile(QueryContext.java:312) at org.basex.query.QueryContext.iter(QueryContext.java:331) at org.basex.http.restxq.RestXqResponse.serialize(RestXqResponse.java:73) at org.basex.http.web.WebResponse.create(WebResponse.java:56) at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:54) at org.basex.http.BaseXServlet.service(BaseXServlet.java:62) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:542) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1700) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1667) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:505) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:786) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:743) at java.lang.Thread.run(Thread.java:748) Could you help me to find a solution? Many thanks, Philippe

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Re: [basex-talk] parsing error using the new http-client in BaseX 10.x http module
by Andreas Hengsbach | nexoma 07 Dec '22

07 Dec '22

Sorry, it was a simple dependency problem. I forgot to include tagsoup. Best regards Andreas

1 0

parsing error using the new http-client in BaseX 10.x http module
by Andreas Hengsbach | nexoma 07 Dec '22

07 Dec '22

Hi all, it seems that the new http client in basex 10.x behaves differently when evaluating the response. If, for example, an API that usually delivers JSON then delivers an HTML page on a 404, I run into a parser problem. [experr:HC0002] Conversion failed: Stopped at ., 1/1: [json:parse] (1:1): Unexpected JSON value: '<br />...'. The error page is correctly delivered with content type "text/html". How is it decided which parser to use? I would have expected the content type of the response to be used. Has anyone else observed this behaviour? This is how I used the http module: let $response := http:send-request(<http:request method='post' ><http:body media-type='application/json'/></http:request>, fn:concat($host, $apiKey), $body) return ( (: do someting :) ) The problem definitely does not occur with BaseX 9.x. Many thanks and best regards Andreas

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