- BaseX-Talk - mailman.uni-konstanz.de

Python API
by Jan Vlčinský (CAD) 24 Oct '11

24 Oct '11

Hi All Stan spent some time on trying to convert Python lib to use Python 3.x and run into problem, mainly because Python 3.x is handling strings as array of unicode chars, and 2.x is using it as array of bytes. As the lib is using bytes a lot (bytes are read and written to and from sockets, and very often there are "strange" bytes like 0x0 etc.) this change affects core of the solution. If there is someone willing to take care of this task, the task is available free of charge :-) Attached are my older unit tests from time of my optimization effort - it could be helpful for conversion (as writing unit tests is first recommended task). I would be pleased to take care of it, but what I lack the most today is some free capacity. With best regards Jan *Ing. Jan Vlčinský* CAD programy Slunečnicová 338/3, 734 01 Karviná Ráj, Czech Republic tel: +420-597 602 024; mob: +420-608 979 040 skype: janvlcinsky; GoogleTalk: jan.vlcinsky(a)gmail.com http://cz.linkedin.com/in/vlcinsky On 24 October 2011 10:29, Jan Vlčinský (CAD) <jan.vlcinsky(a)cad-programs.com>wrote: > Hi Stanley > I did use BaseX in past under 2.6 and it worked quite well. There was need > for some optimization (which is now part of provided lib) and from this work > I have to say, that the code is quite simple and if it is not directly > compatible with automated code conversion tool, it shall not be very > difficult to fix it and have it running. > > With best regards > > Jan > > > > On 23 October 2011 20:29, Stanley Sokolow <stanleysokolow(a)gmail.com>wrote: > >> I'm just getting started learning BaseX. I'd like to work with the Python >> API. Is it compatible with Python 3.x? >> >> Thanks, >> Stan >> >> _______________________________________________ >> BaseX-Talk mailing list >> BaseX-Talk(a)mailman.uni-konstanz.de >> https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk >> >> >

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BaseX has been updated on Filecluster.com
by FileCluster Support 24 Oct '11

24 Oct '11

Dear Developer, You have received this email because we have updated BaseX and this was the contact email for the application. Your application update status BaseX has been updated on FileCluster.com to the 7.0.1 version. You can check out your application on our site at: http://www.filecluster.com/Business-Office/Database-Management/Download-Bas… If you want to let your users know about your software page on FileCluster.com, to rate it and review it, you can also use this banner to link it: Promote your software As a software website, it`s our duty to help the developers promote their software. Fortunatelly, our software promotions are cost free, for more informations please visit our promotion page. Submit your press releases We are also accepting press releases from software developers. All you have to do is to submit your press release and we will take care of the rest. Useful developer links All the essential links you need as a developer on FileCluster.com: Link to us - download banners or text links for linking to FileCluster.com Submit your software - Submit your software via PAD or manually Submit your press release - submit your press releases using our online form Contact Us - contact our editors Promote your software - our promotions page If you do not wish to receive any further notifications or confirmations from FileCluster.com, please send us an email and request a contact removal (email removal). Keep in mind that this means you will not receive ANY contact from us, including: software promotions, update confirmations or security alerts (antivirus and spyware test results). Regards, Renta Cezar - Senior Editor FileCluster Labs www.filecluster.com

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FileGuru: Important Note About Submission Of BaseX 7.0.1
by FileGuru 23 Oct '11

23 Oct '11

Hi,Thanks for submitting your software BaseX 7.0.1 We will review your software within 2 weeks and you will be notified via email if your software has been accepted. To speed up your submission please place a link to us on any page of your website and let us know. By linking to our site you can greatly improve the position of your listing in our archive. Linking back to us will also ensure a speedy review of your software. Here is linking code which you can use to link back to our site. FileGuru - Software Downloads If you prefer image, you can find nice buttons here Best Regards, FileGuru http://www.fileguru.com © 2000-2011, FileGuru.

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Python API
by Stanley Sokolow 23 Oct '11

23 Oct '11

I'm just getting started learning BaseX. I'd like to work with the Python API. Is it compatible with Python 3.x? Thanks, Stan

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stopping the basexhttp server
by Pascal Heus 23 Oct '11

23 Oct '11

Hi: Under linux, I use the basexhttp script in the bin folder to start the BaseX server and Jetty HTTP server (for REST and Webdav) To stop the process, I then copied the file into basexhttpstop nd added the stop keyword to the last line: java -cp "$CP" $VM org.basex.api.BaseXHTTP "$@" stop However, this only seems to affect the BaseX server (Jetty continues to run and listen on port 8984). I can of course kill the process but would prefer for this to be available from the command line. Could this be adjusted? thanks *P

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Ruby client causing java.net.SocketException on server
by Daniël Knippers 23 Oct '11

23 Oct '11

Good evening, I am using Ruby on Rails and BaseX for some hobby projects, and I have noticed the new Ruby client API + BaseX 7.0 causes java.net.SocketExceptions (see bottom of this message for complete error + stack trace) on the server. After inspecting the new client code, this seemed to have been caused by the new query iteration method which uses a cache. Reproducing this is easy; execute the QueryExample.rb script from the repository (make sure to first remove 'query.init', which is still in the example but has been removed from the API). It raises the Exception every single time for me. Note the query does seem to return the expected result so I could just ignore the Exception but that does not seem like the right thing to do :) On a side note, the 'if more()' in the 'next' method seems superfluous as query.next should only be called inside a 'while query.more' loop anyway. Effectively 'query.more' is now called twice in that loop before the cache is read. Kind regards, Daniël Knippers ps. I'm using Java 1.6.0_27, and the error occurs on the stable BaseX 7.0 as well as on snapshot 170343 (7.0.1 RC1). The error below is from the 7.0.1 RC1 version. Server and client were ran from the same machine. ================= <error> ================= java.net.SocketException: Connection reset by peer: socket write error java.net.SocketOutputStream.socketWrite0(Native Method) java.net.SocketOutputStream.socketWrite(Unknown Source) java.net.SocketOutputStream.write(Unknown Source) org.basex.io.out.BufferOutput.flush(BufferOutput.java:52) org.basex.io.out.PrintOutput.flush(PrintOutput.java:149) org.basex.server.ClientListener.send(ClientListener.java:504) org.basex.server.ClientListener.info(ClientListener.java:326) org.basex.server.ClientListener.run(ClientListener.java:212) ================= </error> ================= =============== <caused_by> =============== def more() if @cache.length == 0 @session.write(4.chr) @session.send(@id) while((a)session.read == 1.chr) @cache << @session.receive end end return @pos < @cache.length end def next if more() @pos += 1 return @cache[@pos - 1] end end =============== </caused_by> ===============

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Clustering/replicating?
by Pascal Heus 22 Oct '11

22 Oct '11

All: We're looking into possibly building large scale infrastructure around BaseX and wondering if there is any information available around database replication (read replicas) and running BaseX in clusters? Also, when I submit a query to a BaseX server, is there a way to limit the amount of time/resources the query can comsume? For example, can I say 'fail this query if it takes more than 30 seconds or 1Gb of memory'? many thanks *P

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ajax and http server - cross-domain, jsonp or proxy?
by colin mcenearney 22 Oct '11

22 Oct '11

Hi, I just installed basex for the first time and I am very impressed and really looking forward to using it. Thanks for making such a great tool available for free! I'm not really a developer so this might be an obvious question: using basex's http server, what is the best strategy for ajax-style communication between browser and db? I am aware of a few approaches: 1) direct httprequest to host:8984/my_db/somequery, but going across ports seems to violate "same origin policy" 2) using jsonp 3) calling from browser to server-script (like the php example in basex docs), which handles request to the db All responses are greatly appreciated, Colin

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Problems in using BaseX REST server - IncompatibleClassChangeError javax.ws.rs.core.Response$Status does not implement the requested interface
by Pushkaraj Thorat 21 Oct '11

21 Oct '11

Hello, I am doing setup for REST enabled basex database with procedure mentioned in http://docs.basex.org/wiki/JAX-RX_API URL. Configuring & starting server and running failed due to class not found, but later I've modified the ./basexrest script as: (Included all the jars in lib folder) ######START #!/bin/bash # Path to this script PWD=`dirname $0` # Paths to distributed files or source directories BASEX=$PWD/BaseX.jar BASEXAPI=$PWD/../lib/basex-api.jar # Classpath LIB=$PWD/../lib LIB_CP="" for JAR_FILE in $LIB/*.jar do LIB_CP="$LIB/$JAR_FILE:$LIB_CP" done CP=$BASEX:$BASEXAPI:$LIB_CP # Options for virtual machine VM=-Xmx1g # Run REST server java -cp "$CP" $VM org.basex.api.jaxrx.JaxRxServer "$@" ######END after this, server started successfully, hit the URL - http://localhost:8984/basex/jax-rx I am getting following exception: java.lang.IncompatibleClassChangeError: Class javax.ws.rs.core.Response$Status does not implement the requested interface javax.ws.rs.core.Response$StatusType at com.sun.jersey.spi.container.ContainerResponse.getStatus(ContainerResponse.java:548) at com.sun.jersey.spi.container.ContainerResponse$CommittingOutputStream.commitWrite(ContainerResponse.java:156) at com.sun.jersey.spi.container.ContainerResponse$CommittingOutputStream.write(ContainerResponse.java:133) at org.basex.io.BufferedOutput.flush(BufferedOutput.java:50) at org.basex.io.PrintOutput.flush(PrintOutput.java:126) at org.basex.data.XMLSerializer.cls(XMLSerializer.java:206) at org.basex.data.Serializer.close(Serializer.java:219) at org.basex.api.jaxrx.BXJaxRx$1.code(BXJaxRx.java:96) at org.basex.api.jaxrx.BXCode.run(BXCode.java:53) at org.basex.api.jaxrx.BXOutput.write(BXOutput.java:53) at com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:71) at com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:57) at com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:299) Your help is appreciated. Thanks, Pushkaraj

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Performance of Basex 7.0 XQuery execution
by Constantine Hondros 21 Oct '11

21 Oct '11

Hi there, I am running relatively simply XQuery over a Basex database read in from about 100 MB of XML. While performance in general is fantastic, with most queries completing in a few seconds, I am getting worryingly slow performace on certain queries using XPath axes such as preceding-sibling. For example, the following simple (if a bit silly) query takes over 30 minutes to execute: /tns:pois/tns:poi[not(preceding-sibling::tns:poi)] For what it's worth, there are only about 100,000 instances of the <tns:poi> element. So the immediate question is whether this performance is to be expected. If not, what are the obvious things to look at in terms of performance tuning? Thanks in advance, Constantine Constantine Hondros | Senior Data Engineer | TomTom Places | constantine.hondros(a)tomtom.com<mailto:constantine.hondros@tomtom.com> | +31 (0) 88 245 6239 office | +31 (0) 6 402 14838 mobile | places.tomtom.com<http://places.tomtom.com/>

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