September 2018 - BaseX-Talk - mailman.uni-konstanz.de

Tomcat and UserPrincipal
by Marco Lettere 25 Sep '18

25 Sep '18

Hi all, when deploying a BaseX RestXQ module as a Tomcat webapp in a container that uses embedded realm based authentication is there any way to retrieve the login name after being redirected to the protected page? I remember back in J2EE times there was a dedicated method getUserPrincipal. Is there any equivalent using "request:"? Thanks as usual for any kind support! Marco.

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Should serialize function take "newline" : "\r\n" option in the map parameter into account?
by Martin Honnen 25 Sep '18

25 Sep '18

When I run contains(serialize("Line 1.
Line 2.
Line 3.", map { "method" : "text", "newline" : "\r\n" }), '') in BaseX 9.0.2 (from the command line basex.bat or in the GUI) I get the result "false" while I expected "true". Have I not provided the newline option correctly?

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Minor PR/fix suggestion
by Bridger Dyson-Smith 24 Sep '18

24 Sep '18

Hi Christian, et al, I'm guessing that you're all busy with working towards a 9.1 release (yay!), but if you have time would you consider an incredibly minor PR? I recently noticed that the BaseX GUI supports completion and it's great. I found a small typo in the completions: `sliding=for tumbling window` should be `sliding=for sliding window` It's super-duper simple, but I have a branch with the typo fixed[1]. In any event, thanks! Looking forward to the next release. Best, Bridger [1] https://github.com/CanOfBees/basex/tree/fix-completions-typo

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Optimize broke my database(s)
by Florian Wagner 24 Sep '18

24 Sep '18

Hey everone, we're close to going live with a project built upon BaseX with largish Databases (the biggest one being about 6 GB unoptimized). We have a regular nightly full-optimize job. One run this weekend seems to have broken two of our databases. There's single error message per broken database in our logs: java.io.FileNotFoundException: /var/db/basex/[...]_1151592207/inf.basex (No such file or directory) at java.io.FileOutputStream.open0(Native Method) at java.io.FileOutputStream.open(FileOutputStream.java:270) at java.io.FileOutputStream.<init>(FileOutputStream.java:213) at java.io.FileOutputStream.<init>(FileOutputStream.java:162) at org.basex.io.IOFile.outputStream(IOFile.java:158) at org.basex.io.out.DataOutput.<init>(DataOutput.java:47) at org.basex.io.out.DataOutput.<init>(DataOutput.java:36) at org.basex.data.DiskData.write(DiskData.java:137) at org.basex.data.DiskData.close(DiskData.java:160) at org.basex.core.cmd.OptimizeAll.optimizeAll(OptimizeAll.java:145) at org.basex.query.up.primitives.db.DBOptimize.apply(DBOptimize.java:124) at org.basex.query.up.DataUpdates.apply(DataUpdates.java:175) at org.basex.query.up.ContextModifier.apply(ContextModifier.java:120) at org.basex.query.up.Updates.apply(Updates.java:157) at org.basex.query.QueryContext.iter(QueryContext.java:346) at org.basex.query.QueryProcessor.iter(QueryProcessor.java:90) at org.basex.core.jobs.QueryJob.run(QueryJob.java:165) at java.lang.Thread.run(Thread.java:748) The DBAs "Databases" page still lists the broken dbs including the size and a last-modified date of the Job time. But clicking them gets you a detail page with no details, documents, no Add... / Delete / Copy.. buttons and the backup buttons being disable. Ideas how to go from here are greatly appreciated? Any chance getting our database contents back? Grüße Florian Wagner --- Universitaetsbibliothek Tuebingen Wilhelmstr. 32, 72074 Tuebingen IT-Abteilung, Raum B102 +49(0)7071/29-77860 http://www.ub.uni-tuebingen.de

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Wiki Question
by Bridger Dyson-Smith 24 Sep '18

24 Sep '18

Hi all - A quick question about a function name in the wiki: is the convert function: `convert:binary-to-integer()` or `convert:binary-to-integers()`[1]? Thank you and have a nice weekend! Bridger [1] http://docs.basex.org/wiki/Conversion_Module#convert:binary-to-integers

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.basex setup
by kalibuk＠centrum.cz 24 Sep '18

24 Sep '18

Hi all, I'm wondering with my colleague Radim how to setup settings in .basex file. We have not found any detailed documentation what the concrete field set. We had problems with interrupting file upload to database so we played around and so changing the PARALLEL from 8 to 60(!) helped. Also increasid CACHETIMEOUT and TIMEOUT for different reasons. Anybody have detailed documentation of what we set up, what all it affects, what are the ranges of values, and such for these settings? Regards, Jan

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basexhttp errors
by radim-havlicek＠post.cz 20 Sep '18

20 Sep '18

Hello. When I start basexhttp.bat, following errors display: Starting Process basexhttp SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/C:/Program%20Files%20(x86)/BaseX/lib/slf4 j-simple-1.7.13.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/C:/Program%20Files%20(x86)/BaseX/lib/slf4 j-simple-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.slf4j.impl.SimpleLoggerFactory] [main] WARN org.eclipse.jetty.xml.XmlConfiguration - Config error at <Call name="addConnector"><Arg> <New id="httpConnector" class="org.eclipse.jetty.server. ServerConnector"><Arg name="server"><Ref refid="Server"/></Arg><Set name= "host">0.0.0.0</Set><Set name="port">8984</Set><Set name="idleTimeout">60000 </Set><Set name="reuseAddress">true</Set></New> </Arg></Call> java.lang.IllegalStateException: No object for id=null How can I correct it? Thank you in advance for your help. Best regards, Radim Havlicek

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web:response-header & Set-Cookie
by Bogdan Bogucki 18 Sep '18

18 Sep '18

Hello, When I try invoke following code: return ( web:response-header( map { 'media-type': web:content-type($path) }, map { 'Cache-Control': 'max-age=3600,public' }, map { 'Set-Cookie': 'JSESSIONID=' || session:id() || ';max-age=1800' } ), file:read-binary($path) } I receive error: [XPTY0004] Unknown option 'Set-Cookie'. I am able to set cookie using <rest:response>. Following code is working: return ( <rest:response> <http:response status="200" message="OK"> <http:header name="media-type" value="{web:content-type($path)}"/> <http:header name="Content-Type" value="text/html"/> <http:header name="Cache-Control" value="max-age=3600,public"/> <http:header name="Set-Cookie" value="{'JSESSIONID=' || session:id() || ';max-age=1800'}"/> </http:response> </rest:response>, file:read-binary($path) ) I think function web:response-header should allow set cookie. Regards Bogdan Bogucki

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First non-null value?
by Graydon Saunders 14 Sep '18

14 Sep '18

let $possible1 as xs:string* := (: go looking for a value via one route :) let $possible2 .... (: all the other routes in preference order :) .... let $foundIt as xs:string := ($possible1,$possible2,$possible3,$possible4,$possible5,'FAILED')[1] This works nicely in terms of "I got the value by the least-bad route". What I'm blanking on is "how do I tell which was the first possibility to match?" without resorting to sprawl of if-then-else statements. I have the idea that there must be a compact way but I have no idea what it is if there is. Any suggestions? Thanks! Graydon

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dB:update()
by ＠pyschny.de 12 Sep '18

12 Sep '18

I want to solve the following problem: For $doc in $list-of-docs detect differences in doc against the basex-db and add the changed records to the basex-db. After differences of each doc are added to the basex-dB create a new index for basex-dB which is required for the next $doc How can I solve the problem that the added records are not visible for the index creation? Michael

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