BaseX-Talk

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5251 discussions

Re: [basex-talk] http-server error with version 9
by Günter Dunz-Wolff 07 Nov '18

07 Nov '18

You are wright. I’ve overseen a second WEB-INF Folder in BaseXWeb. Now with the new WEB-INF config files everything is running. Thanks a lot. > Am 06.11.2018 um 18:17 schrieb Christian Grün <christian.gruen(a)gmail.com>: > >> Then I changed the default .basex file from >> WEBPATH = /Users/gdw/basex/webapp >> to >> WEBPATH = /Users/xxx/Documents/kleist/BaseXWeb > > So I assume (see before..) that the jetty.xml and web.xml files from > your existing project need to be updated? Jetty 9 uses a different > configuration syntax, so you’ll need to compare the old and new > WEB-INF configuration files.

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Programmatically extracting function signatures
by Bridger Dyson-Smith 07 Nov '18

07 Nov '18

Hi all - I was curious if there was a way to extract function signatures from BaseX. I'm currently reading through the (excellent) wiki but was curious if there was a more automated process I might be able to use. I've been trying to think of something clever with function-lookup, but I can't seem to make it dynamic based on module namespace; e.g. ``` for $fun in function-lookup(xs:QName("archive:delete"), 1) return $fun ``` I may just grab the wiki and parse it :), but I'm also interested in changes between versions of the processor. Any thoughts or suggestions would be greatly appreciated! Best, Bridger

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Maybe interesting to you, Christian (et al)?
by Andreas Mixich 06 Nov '18

06 Nov '18

Hello Christian & Co., nothing BaseX related, and maybe totally uninteresting to you, but as it seems, you put some major efforts into the full text search, it could be one of those nerdy passions, where one is just hungry and wants more food on the topic: TRE: A Regex Engine with Approximate Matching / http://ducktape.blot.im/tre-a-regex-engine-with-approximate-matching -- Minden jót, all the best, Alles Gute, Andreas Mixich

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rest run query binding problem
by Maximilian Gärber 06 Nov '18

06 Nov '18

Hello, given the query file [1] called by http://localhost:8984/rest?run=argon/create-database.xq&DB=test-db&CHOP=no&… I get the error: Stopped at ., 3/18: [XPDY0002] No value assigned to $CHOP. When I change the value, e.g. to nono I get Invalid 'CHOP' value 'nono'; must be 'yes', 'no', or a boolean. Running on basex 9.1 [1] create-database.xq (:~ New database name. :) declare variable $DB as xs:string external; declare variable $CHOP as xs:string external; declare variable $FTINDEX as xs:string external; declare variable $TEXTINDEX as xs:string external; declare variable $ATTRINDEX as xs:string external; declare variable $TOKENINDEX as xs:string external; let $exists := db:exists($DB) let $meta := concat('~meta_', $DB) let $history := concat('~history_', $DB) return if(not($exists)) then ( db:create($meta), db:create($history), db:create($DB, (), (), map { 'chop' : $CHOP , 'ftindex' : $FTINDEX , 'textindex' : $TEXTINDEX , 'attrindex' : $ATTRINDEX , 'tokenindex' : $TOKENINDEX }) ) else ()

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http-server error with version 9
by Günter Dunz-Wolff 06 Nov '18

06 Nov '18

Hi all, I’m trying to update to version 9 of basex. Everything is OK, but I’m not able to run basexhttp. I’m getting the following message: /Users/gdw/Downloads/basex-2/bin/basexhttp ; exit; gdw-imac:~ gdw$ /Users/gdw/Downloads/basex-2/bin/basexhttp ; exit; /Users/gdw/.basex: writing new configuration file. [main] INFO org.eclipse.jetty.util.log - Logging initialized @370ms to org.eclipse.jetty.util.log.Slf4jLog [main] WARN org.eclipse.jetty.xml.XmlConfiguration - Config error at <Call name="addConnector"><Arg> <New class="org.eclipse.jetty.server.nio.SelectChannelConnector"><Set name="host"><SystemProperty name="org.basex.serverhost" default="0.0.0.0"/></Set><Set name="port"><SystemProperty name="org.basex.serverport" default="8984"/></Set><Set name="maxIdleTime">60000</Set><Set name="reuseAddress">true</Set><Set name="Acceptors">2</Set><Set name="requestHeaderSize">65535</Set></New> </Arg></Call> org.eclipse.jetty.server.nio.SelectChannelConnector logout Saving session... ...copying shared history... ...saving history...truncating history files... ...completed. [Prozess beendet] All versions till 8.6.7 are running. My system is MacOS X Mojave. Java-Version is: java version "1.8.0_191" Java(TM) SE Runtime Environment (build 1.8.0_191-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode) I hope, there is help. Thanks in advance. Guenter

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Potential Bug 9.0
by Dieter Zanzinger 05 Nov '18

05 Nov '18

Dear BaseX-Team, I encountered some unexpected behavour, maybe a bug? I declare a collection of function-signatures. Then I iterate over the collection inside a copy/modify-construct. Each function adds a node to the database. This works as expected: declare variable $_:abschlussqueries := (_:f1#2 , _:f2#2); declare %updating %rest:path('treez/ab4') function _:abschluss4() as element() { <Postabschluss>{ ( try{ let $db := doc('FGfax')/Dateien/Datei for $d in $db return ( copy $c := $d modify ( for $funct at $counter in $_:abschlussqueries return ( (: prof:dump("bla: " || $counter) , :) prof:void(""), $funct($c, $counter) ) ) return ( $c ) ) } catch * { let $db := doc('FGfax')/Dateien return error(xs:QName("dieter:norights10"), "Error: "|| $err:code || ': ' || $err:description , 418 ) } ) }</Postabschluss> }; declare %updating function _:f1($c, $counter ) { try {( filepath:copy-to("C:\Users\Win7ProUser\Documents\FGscan_ScanDocs\bla.xml","C:\Users\Win7ProUser\Documents\FGscan_ScanDocs\bla1.xml"), insert node <f1>function1 </f1> as last into $c )} catch * { insert node <f1>{"Error: "|| $err:code || ': ' || $err:description}</f1> as last into $c } }; declare %updating function _:f2($c, $counter ) { try {( filepath:copy-to("C:\Users\Win7ProUser\Documents\FGscan_ScanDocs\bla.xml","C:\Users\Win7ProUser\Documents\FGscan_ScanDocs\bla1.xml"), insert node <f2>function2 </f2> as last into $c )} catch * { insert node <f2>{"Error: "|| $err:code || ': ' || $err:description}</f2> as last into $c } }; ————————————— Result: <?xml version="1.0" encoding="ISO-8859-1"?> <Postabschluss> <> <Datei uuid="8ad03f50-4b9c-461a-b818-1a97dc5735e9"> <> <sortedPath znen=""> <>@SMB10.211.55.6/netzlaufwerktestF/sortierter_Posteingang/OHNE/#Fax_OHNE_AZ--201803061002-154925-00498171251x1800.pdf</sortedPath> <f1> <>function1 </f1> <f2> <>function2 </f2> </Datei> <Datei uuid="26a3aee7-a0d8-4b8d-acd4-90554c8ab28c"> <> <sortedPath znen=""> <>@SMB10.211.55.6/netzlaufwerktestF/sortierter_Posteingang/OHNE/#Fax_OHNE_AZ--201803061003-154928-0049242344x1801.pdf</sortedPath> <f1> <>function1 </f1> <f2> <>function2 </f2> </Datei> <Datei uuid="af0548aa-08cf-464a-839d-421363f452ce"> <> <sortedPath znen=""> <>@SMB10.211.55.6/netzlaufwerktestF/sortierter_Posteingang/OHNE/#Fax_OHNE_AZ--201803061220-154966-004999429025.pdf</sortedPath> <f1> <>function1 </f1> <f2> <>function2 </f2> </Datei> —————— But if remove the line: prof:void("“), the result is: <?xml version="1.0" encoding="ISO-8859-1"?> <Postabschluss> <> <Datei uuid="8ad03f50-4b9c-461a-b818-1a97dc5735e9"> <> <sortedPath znen=""> <>@SMB10.211.55.6/netzlaufwerktestF/sortierter_Posteingang/OHNE/#Fax_OHNE_AZ--201803061002-154925-00498171251x1800.pdf</sortedPath> </Datei> <Datei uuid="26a3aee7-a0d8-4b8d-acd4-90554c8ab28c"> <> <sortedPath znen=""> <>@SMB10.211.55.6/netzlaufwerktestF/sortierter_Posteingang/OHNE/#Fax_OHNE_AZ--201803061003-154928-0049242344x1801.pdf</sortedPath> </Datei> <Datei uuid="af0548aa-08cf-464a-839d-421363f452ce"> <> <sortedPath znen=""> <>@SMB10.211.55.6/netzlaufwerktestF/sortierter_Posteingang/OHNE/#Fax_OHNE_AZ--201803061220-154966-004999429025.pdf</sortedPath> </Datei> </Postabschluss> Do you have any explanation for this behavour? Some other updating expression instead of prof:void(„“) works as well. But if my only call is to the functions, it does not work. Sincerely Dieter Zanzinger

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Conceptual problems using BaseX from Python
by Kristian Kankainen 03 Nov '18

03 Nov '18

Hello, XQuery is a lovely language and together with BaseX it is very lovely. But now, for a project that need Python, I find difficulties understanding the general workflow communicating between BaseX and Python. My basic situation boils down to 1) execute a query on BaseX that returns a list of data 2) analyse every item in the in Python 3) push the analysis result back in to BaseX. I have done updates like this solely in XQuery but this time I need the analysis part done in Python. Since I seem to only get a list of strings out of a query executed by the client, is this usecase even possible? Below is attached my sample running code Best regards, Kristian K ```Python from BaseXClient import BaseXClient # open a session session = BaseXClient.Session('localhost', 1984, 'admin', 'admin') # execute a query that returns a list of entry elements query = session.query(""" let $list := <list> <entry> <a>1</a> 2 </entry> <entry> <a>1</a> 2 <c>3</c> </entry> </list> let $items := for $entry in $list/entry[not(exists(./c))] return $entry return $items """ ) # process each item of the query for typecode, item in query.iter(): print(type(item)) print(item) session.close() ``` This returns simply: <class 'str'> # the type of returned item is of class 'str' <entry> # this is the content of the plain text object <a>1</a> 2 </entry>

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blanks after , in set no longer allowed...
by Peter Villadsen 01 Nov '18

01 Nov '18

Hi I installed version 9.1. the other day, and I found that my app did not work after that. A little debugging quickly identified the culprit. When I submit queries to the backend I calculate a set of predefined variable bindings used in the queries. It turns out I did: public string CalculateBindingsString(params Tuple<string, string>[] vars) { string result = string.Empty; if (vars != null) { foreach (var v in vars) { var name = v.Item1; var value = v.Item2; if (ValidateVariableName(name)) { if (result.Any()) result += ", "; result += name + "=" + value; } } } return result; } See the blank there? That caused the subsequent USE BINDINGS call to fail. Removing the blank fixed it all. If this was part of a bug fix, the fix was a breaking change. Is there a list of such breaking changes for each release? Best Regards Peter Villadsen Principal Architect Microsoft Business Applications Group

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BaseX 9.0: The Spring Edition!
by Christian Grün 01 Nov '18

01 Nov '18

Dear BaseX aficionados, We are very happy to announce the release of BaseX 9.0! The new version of our XML database system and XQuery 3.1 processor includes some great new features and a vast number of minor improvements and optimizations. It’s both the usage of BaseX in productive environments as well as the valuable feedback of our open source users that make BaseX better and better, and that allow and motivate us to keep going. Thanks to all of you! Along with the new release, we invite you to visit our relaunched homepage: http://basex.org/. Java 8 is now required to run BaseX. The most prominent features of Version 9.0 are: XQUERY - Comprehensive extensions in the internal XQuery optimizer framework - Dynamic hash joins rewritings of general comparisons - Register query jobs as persistent services - Process very large CSV files via the new CSV 'xquery' format - Update Module: higher-order functions for performing updates - Unified static typing, including maps, arrays and function items - COPYNODE: Lightweight copying of XML fragments - ENFORCEINDEX: Enforce rewriting for index access STORAGE - Improved database compression (short strings, whitespaces) WEB APPLICATIONS - Permissions layer: Unified definition of RESTXQ access patterns - RESTXQ: Full support for client- and server-side quality factors - REST: Run BaseX command scripts - Web server upgrade to Jetty 9 REPOSITORIES - Combined packaging mechanism (XQuery and Java) - Java Packaging: Bundling of additional libraries DISTRIBUTIONS - Revised detection and configuration of BaseX home directory - Windows executable: better detection of Java libraries DBA: BASEX DATABASE ADMINISTRATION - Improved editing and evaluation of XQuery modules - Revised file, session and job management More details can be found on our homepage. We are looking forward to your feedback. Enjoy and have fun, Christian, BaseX Team

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ArrayIndexOutOfBoundsException: Maximum array size reached
by Han (US), Paul P 30 Oct '18

30 Oct '18

Hello, We encountered the below error when using this API: archive:extract-to($tempDirPath, file:read-binary($zipFilePath)). The zip file size is 51396593 and the inflated file size is 2796146027. Please let me know if you need additional information. We expect our data files to be at least 10 times bigger than these numbers. POST failed with response 400: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de<mailto:basex-talk@mailman.uni-konstanz.de> Version: BaseX 9.0.2 Java: Oracle Corporation, 1.8.0_121 OS: Linux, amd64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: Maximum array size reached. at org.basex.util.Array.newSize(Array.java:238) at org.basex.util.Array.newSize(Array.java:227) at org.basex.io.out.ArrayOutput.write(ArrayOutput.java:32) at java.io.OutputStream.write(OutputStream.java:116) at org.basex.query.func.archive.ArchiveIn.read(ArchiveIn.java:77) at org.basex.query.func.archive.ArchiveExtractTo.item(ArchiveExtractTo.java:40) at org.basex.query.expr.ParseExpr.iter(ParseExpr.java:48) at org.basex.query.scope.MainModule.iter(MainModule.java:118) at org.basex.query.QueryContext.iter(QueryContext.java:330) at org.basex.query.QueryProcessor.iter(QueryProcessor.java:90) at org.basex.core.cmd.AQuery.query(AQuery.java:100) at org.basex.core.cmd.XQuery.run(XQuery.java:22) at org.basex.core.Command.run(Command.java:257) at org.basex.http.rest.RESTCmd.run(RESTCmd.java:105) at org.basex.http.rest.RESTQuery.query(RESTQuery.java:69) at org.basex.http.rest.RESTQuery.run0(RESTQuery.java:37) at org.basex.http.rest.RESTCmd.run(RESTCmd.java:70) at org.basex.core.Command.run(Command.java:257) at org.basex.core.Command.execute(Command.java:93) at org.basex.core.Command.execute(Command.java:116) at org.basex.http.rest.RESTServlet.run(RESTServlet.java:27) at org.basex.http.BaseXServlet.service(BaseXServlet.java:59) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) at org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:419) at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:169) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Regards, Paul

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