BaseX-Talk September 2017

basex-talk@mailman.uni-konstanz.de

30 participants
38 discussions

Global locks
by Andy Bunce 11 Feb '19

11 Feb '19

Running the following in the GUI (8.6.5) ``` let $db:="BEP" return count(collection($db)) ``` The info windows shows $db is inlined Compiling: - inline $db_0 - pre-evaluate collection("BEP") to document-node() sequence - pre-evaluate count((db:open-pre("BEP",0), ...)) to xs:integer - simplify gflwor Optimized Query: 9193 All good. Submitting a job ``` let $q:='let $db:="BEP" return count(collection($db))' return jobs:eval($q,(),map{"cache":true()})!(jobs:wait(.),jobs:list-details(.)) ``` returns: <job id="job90" type="ScheduledXQuery" state="cached" user="admin" duration="PT0.007S" reads="(global)" writes="(none)">let $db:="BEP" return count(collection($db))</job> Note @reads="(global)" But ``` let $q:='count(collection("BEP"))' return jobs:eval($q,(),map{"cache":true()})!(jobs:wait(.),jobs:list-details(.)) ``` <job id="job92" type="ScheduledXQuery" state="cached" user="admin" duration="PT0.006S" reads="BEP" writes="(none)">count(collection("BEP"))</job> Note @reads="BEP" Is this correct and/or of any consequence? /Andy

2 8

oXygen XML, content negotiation and #1220
by Omar Siam 20 Feb '18

20 Feb '18

Hi list! I like my oXygen editor to request raw XML data from my RESTxq endpoints to test XSL stylesheets. When I do this with RESTxq paths that have different %rest:produces it fails with the BASX0003 multiple functions error. Turns out oXygen sends application/xml, */* as Accept header without any quality. I understand that as documented in https://github.com/BaseXdb/basex/issues/1220 this is known not to work. My/our workaround is to branch in a single XQuery function using sth. like: if (some $a in tokenize(request:header("ACCEPT"), ',') satisfies $a = ('text/xml', 'application/xml')) then $xml else $xhtml I hope this is still on the agenda for 8.7. Best regards Omar Siam

3 7

Preparing BaseX 8.5.4 (please don't forget Issue #1341)
by Jan Dölle 20 Feb '18

20 Feb '18

Hi, we noticed you prepare release 8.5.4. Please don't forget to fix issue: SQL with BaseX 8.5.3 #1341 Thx Jan -- Jan Dölle E-Mail: basex-list(a)id1.de Telefon +49-69-244502-0 Home: www.id1.de Information Design One AG, Baseler Straße 10, 60329 Frankfurt am Main Registereintrag: Amtsgericht Frankfurt am Main, HRB 52596 Vorstand: Robert Peters, Aufsichtsrat: Christian Hecht (Vorsitz)

4 5

Issue with Full Text Retrieval
by Ron Katriel 06 Nov '17

06 Nov '17

Hi, I am seeing strange behavior with Full Text retrieval. The following query fails for a number of words that are in the XML document (see attached): for $trial in db:open('CTGovDebug') (: [clinical_study/id_info/nct_id='NCT00473512'] :) return $trial contains text { 'neoplasms' } It fails on a good number of words including neoplasms, cougar, industry, yes, completed, november, 2005, interventional, single, male, female, assignment, none, research, principal, primary, secondary, age, years, gender, etc. But it matches most of the words in the file. Observation: The words that fail are located at the beginning and/or end of the text *and* do not occur anywhere else in the middle of any text. The document is the only one in the database. It does not make a difference whether full text indexing is on or off. My BaseX version is 8.6.4. Thanks, Ron Ron Katriel, Ph.D. | Principal Data Scientist | Medidata Solutions <http://www.mdsol.com/> 350 Hudson Street, 7th Floor, New York, NY 10014 rkatriel(a)mdsol.com <tbrophy(a)mdsol.com> | direct: +1 201 337 3622 <//201 337 3622> | mobile: +1 201 675 5598 <//+1 201 675 5598> | main: +1 212 918 1800 <//+1 212 918 1800>

4 9

HTTP module
by Giuseppe Celano 10 Oct '17

10 Oct '17

Hi, I am accessing a RESTful API via the following command: curl -F data=(a)example.txt -F tokenizer= -F tagger= -F parser= http://lindat.mff.cuni.cz/services/udpipe/api/process > example2.txt I am wondering what the best way is to do that in BaseX. The service also has a URL syntax, as shown in the following example: http://lindat.mff.cuni.cz/services/udpipe/api/process?tokenizer&tagger&pars…. <http://lindat.mff.cuni.cz/services/udpipe/api/process?tokenizer&tagger&pars….> I have tried: http:send-request(<http:request method='get' href='http://lindat.mff.cuni.cz/services/udpipe/api/process?tokenizer&tagger&…'/>) and works perfectly; but I was trying to put the body of the request in http:body, but it does not work: http:send-request(<http:request method='get' href='http://lindat.mff.cuni.cz/services/udpipe/api/process'> <http:body media-type ="string"> tokenizer&tagger&parser&data=Děti pojedou k babičce. Už se těší. </http:body> </http:request>) I could invoke the curl command in BaseX, but maybe there is a more elegant way to send the content of the file (than adding it to the URL). Thanks. Ciao, Giuseppe Universität Leipzig Institute of Computer Science, Digital Humanities Augustusplatz 10 04109 Leipzig Deutschland E-mail: celano(a)informatik.uni-leipzig.de E-mail: giuseppegacelano(a)gmail.com Web site 1: http://www.dh.uni-leipzig.de/wo/team/ Web site 2: https://sites.google.com/site/giuseppegacelano/

4 10

Moving on to Java 8!
by Christian Grün 28 Sep '17

28 Sep '17

Thanks everyone for your feedback! I got replies from users who are still stuck to older versions of the JRE (even Java 6 and, thus, BaseX 7.9 is still used), but it seems that the majority of you is looking forward to the upgrade. I am glad to report that the first Java 8 snapshot is available for testing now [1]. Please don’t hesitate to give it a try. Have fun, Christian [1] http://files.basex.org/releases/latest/

1 0

Moving on to Java 8?
by Christian Grün 27 Sep '17

27 Sep '17

Dear all, Java 9 has just been released. As you may know, the BaseX code base is still compatible with Java 7, because version 7 is still used in the wild (we even got various user complaints when we upgraded from Java 6 just a few years ago). There are several reasons why we will move along to Java 8 in the near future: * It is more and more unsafe to use Java 7, because Oracle has stopped support two years ago. * From the developer point of view, there are only advantages when working with more recent versions of a software: newer language features and standard libraries can be used, the code base can be reduced, etc. * We would like to switch to the newest version of Jetty, which requires Java 8. Before we approach further, we are interested in hearing your reactions: Do you still work with Java 7? Would some of you require longtime support for Java 7? Thanks in advance and all the best, Christian

5 4

BaseX continuous integration
by Tim Thompson 27 Sep '17

27 Sep '17

Hello, Does anyone have an example they could share of an app using the BaseX Unit Module deployed on a continuous integration server (preferably Travis CI)? Thanks in advance. Tim -- Tim A. Thompson Discovery Metadata Librarian Yale University Library

1 0

Re: [basex-talk] pyBaseX url
by Bridger Dyson-Smith 26 Sep '17

26 Sep '17

Hi Andreas, On Sep 26, 2017 10:48, "Andreas Doering" <ado(a)zurich.ibm.com> wrote: Hello all, I want to use BaseX in a python environment and found PyBaseX by Luca Lilianas. Unfortunately, the email address associated with github does not seem to exist. What is not clear to me how the url has to be formatted. I tried 'http://localhost:1984:/rest/' but got timeouts. Have you tried 'http://localhost:1984/rest/'; e.g. removing the trailing ':'? I started a basexserver (with default port/user/password) and I can create and work with my example database with the the textual client from BaseX. But I could not find out how I have to format the url parameter so that the python interface works. I created a client by c = BaseXClient('http://localhost:1984:/rest/',default_database= None,user='admin',password='admin') c.connect c.create_database('TestName') The last line hangs in socket read. The log file does not show anything of that. Furthermore, it seems, that the current code in github is python2 specific, or maybe some package it depends on. I remember that during installation on python3 something broke, so I am using python2 in the moment. Any plans to port to python3? Regards, Andreas I can't speak to the python3 question, apologies. Best, Bridger

2 1

pyBaseX url
by Andreas Doering 26 Sep '17

26 Sep '17

Hello all, I want to use BaseX in a python environment and found PyBaseX by Luca Lilianas. Unfortunately, the email address associated with github does not seem to exist. What is not clear to me how the url has to be formatted. I tried 'http://localhost:1984:/rest/' but got timeouts. I started a basexserver (with default port/user/password) and I can create and work with my example database with the the textual client from BaseX. But I could not find out how I have to format the url parameter so that the python interface works. I created a client by c = BaseXClient('http://localhost:1984:/rest/ ',default_database=None,user='admin',password='admin') c.connect c.create_database('TestName') The last line hangs in socket read. The log file does not show anything of that. Furthermore, it seems, that the current code in github is python2 specific, or maybe some package it depends on. I remember that during installation on python3 something broke, so I am using python2 in the moment. Any plans to port to python3? Regards, Andreas

1 0

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BaseX-Talk September 2017