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

delete .jar without version using repo:delete()
by Wissemann, Bodo 19 Jan '18

19 Jan '18

2 2

Web Applications: permission handling
by Christian Grün 18 Jan '18

18 Jan '18

Hi everyone, With BaseX 9.0, permission handling in web applications will be further simplified. We have just finalized a new light-weight permission layer that allows you to: • attach permission strings to RESTXQ functions and • disallow evaluation of such functions via annotated security functions. More details can be found in the documentation [1]. Thanks to those who gave helpful feedback! A new snapshot is available [2]; the DBA has already been rewritten to take advantage of the new annotations. In future versions, we might provide built-in support for various authentication methods (LDAP, OAuth, etc.), and the permission layer could possibly be extended to the other BaseX APIs as well. Looking forward to your feedback, Christian [1] http://docs.basex.org/wiki/Permissions [2] http://files.basex.org/releases/latest/

1 0

proc:system and bash redirecting
by Kristian Kankainen 18 Jan '18

18 Jan '18

Hello! I need to redirect the content of a file into a program using stdin. In my shell I would do like this (silly example): wc < somefile Is this possible to do with proc:system? Giving "<" as an argument to the command doesn't work: proc:system("wc", ("<", "somefile")) outputs [BXPR0001] wc: <: No such file or directory Is there any way around this? The program I need to call can only read from stdin. Best regards, Kristian K

2 1

Can BaseX support absolute/relative paths in validation:xsd(doc) if no second argument provided?
by Aleksandr Shapovaov 17 Jan '18

17 Jan '18

Hello, I've just discovered BaseX and decided to make some experiments. One of them is, suppose I have several documents (data + schemas), something like this: sys/core.xsd <?xml version="1.0"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="urn:SYS-CORE" targetNamespace="urn:SYS-CORE"> <xs:attribute name="category" type="xs:normalizedString"/> </xs:schema> lib/album.xsd <?xml version="1.0"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:SYS-CORE ../sys/core.xsd" xmlns:sys="urn:SYS-CORE" xmlns="urn:LIB-ALBUM" targetNamespace="urn:LIB-ALBUM"> <xs:import namespace="urn:SYS-CORE"/> <xs:element name="album"> <xs:complexType> <xs:sequence> <xs:element ref="title" minOccurs="1" maxOccurs="1"/> </xs:sequence> <xs:attribute ref="sys:category" use="required"/> </xs:complexType> </xs:element> <xs:element name="title" type="xs:normalizedString"/> </xs:schema> usr/albums/album1.xml <?xml version="1.0"?> <album xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:LIB-ALBUM ../../lib/album.xsd" xmlns:sys="urn:SYS-CORE" sys:category="albums" xmlns="urn:LIB-ALBUM"> <title>Album #1</title> </album> I'm uploading these documents using a Python script (I'm using BaseXClient) preserving the file system hierarchy structure I defined above. If I open the documents in IntelliJ IDEA, I can be sure that the documents are valid (I mean, I don't see XSD validation errors), therefore I'm assuming they are valid by fact. However, if I'm trying to validate the XML documents on the BaseX side session.execute('XQUERY for $doc in collection("%s") where fn:ends-with(fn:base-uri($doc), ".xml") return validate:xsd($doc)' % database) I'm getting the following error [bxerr:BXVA0001] Validation failed: 1:186: schema_reference.4: Failed to read schema document '../../lib/album.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. I'm wondering, what am I doing wrong trying to validate documents directly in BaseX? Can BaseX resolve absolute/relative paths in this case? Thanks in advance! P.S. Apologies if I made something wrong (wrong subject, mailing list, non text/plain email, etc), this is my first time sending an email to a mailing list. P.P.S. This email may contain an ad footer since I use this free email service. If possible, please trim the ad away before it's sent/archived. Thanks! -- реклама ----------------------------------------------------------- http://FREEhost.UA - Купи хостинг или домен и получи сертификат Google AdWords номиналом 900 грн.в подарок! - http://goo.gl/EcgF4I

3 3

Historical reasons in the Database Module
by Kristian Kankainen 17 Jan '18

17 Jan '18

Hello I once again ran into giving the arguments in wrong order to the db:replace function. The docs state, that "For historical reasons, the order of the 2nd and 3rd argument is different to db:add and db:create". Since XQuery is typed, wouldn't it be possible to add to new "cosmetic" functions with the arguments in the "right" order like the following: db:replace($db as xs:string, $input as item(), $path as xs:string) as empty-sequence() db:replace($db as xs:string, $input as item(), $path as xs:string, $options as map(*)?) as empty-sequence() Since the arguments are typed with different types (xs:string vs item()) this over-loading would work without colliding with the historical and swapped ones. Am I wrong? Cheers, Kristian K

2 1

Error: Processing instruction has illegal name: xml
by Thomas Zehrer 16 Jan '18

16 Jan '18

Hi there, if i want start a new xml document or open a exist one (factbook.xml e.g.), every time i get this error: Error: Processing instruction has illegal name: 'xml' i have already searched your website first steps and crawled the internet. there was just one entry on stackoverflow, the solution there wont work. how can i go on with it? thanks a lot. Thomas

2 1

DFDL module
by Kristian Kankainen 15 Jan '18

15 Jan '18

Hello, I started writing a small wrapper module for using DFDL with XQuery in BaseX. For this I simply use system calls. This is not an elegant way of doing it, so I wonder, has anyone else had any experience with using DFDL or even integrated it in a more sustainable way? My project will evolve here: https://github.com/keeleleek/basex-daffodil I would like to add a sentence on how cool DFDL is, but I wont. Best regards, Kristian K

2 2

Encoding problem with proc:system
by Kristian Kankainen 15 Jan '18

15 Jan '18

Hello all, I am running a system command with proc:system. The command should return xml, but because of non-ascii letters, the returned string gets scrambled. (I am aware that proc:system receives a string, proc:execute returns an element.) Running the system command in a shell works fine, I get this (snippet) <element>aapõ</element> When running the command through proc:system, I get this instead <element>aap....lement> Where the õ (= C3 B5 in hex representation) has been replaced with F5 BC AF B0. I get the same result specifying the encoding option of proc:system with "utf-8" or just leaving blank. My shell uses utf-8. How could I find out what encoding I need to use in the proc:system function? Best regards, Kristian K

2 3

java.lang.NegativeArraySizeException
by Stefanie Nageldiek 15 Jan '18

15 Jan '18

Hi! I'm trying to move a XSLT Transformation into XQuery. First step is Creating a db and trying to run the XSLT with XQuery. I have a small input file (50 MB) and a large input file (2GB) for testing. So I set up the db with the small input file, ran a parametrizised query calling the XSLT Transformation and everything went well. To be sure everything will work on the bigger db too, I tried to do the same, which fails - I had to allow for more memory which I did. (To be sure the stylesheet works with the big input file for the db I checked it (it takes 20 Minutes to produce a ~1 GB File). This is the error I get: Error: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 8.6.7 Java: Oracle Corporation, 1.8.0_151 OS: Windows 10, amd64 Stack Trace: java.lang.NegativeArraySizeException at java.util.Arrays.copyOf(Unknown Source) at org.basex.io.out.ArrayOutput.write(ArrayOutput.java:25) at org.basex.io.out.PrintOutput.print(PrintOutput.java:76) at org.basex.io.out.NewlineOutput.print(NewlineOutput.java:33) at org.basex.io.serial.MarkupSerializer.printChar(MarkupSerializer.java:254) at org.basex.io.serial.MarkupSerializer.attribute(MarkupSerializer.java:131) at org.basex.io.serial.Serializer.node(Serializer.java:416) at org.basex.io.serial.Serializer.node(Serializer.java:158) at org.basex.io.serial.StandardSerializer.node(StandardSerializer.java:105) at org.basex.io.serial.AdaptiveSerializer.node(AdaptiveSerializer.java:75) at org.basex.io.serial.Serializer.serialize(Serializer.java:109) at org.basex.io.serial.AdaptiveSerializer.serialize(AdaptiveSerializer.java:66) at org.basex.query.value.Value.serialize(Value.java:222) at org.basex.query.value.Value.serialize(Value.java:205) at org.basex.query.func.xslt.XsltTransform.read(XsltTransform.java:75) at org.basex.query.func.xslt.XsltTransform.transform(XsltTransform.java:47) at org.basex.query.func.xslt.XsltTransform.item(XsltTransform.java:33) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:65) at org.basex.query.QueryContext.value(QueryContext.java:406) at org.basex.query.expr.gflwor.Let$LetEval.next(Let.java:185) at org.basex.query.expr.gflwor.GFLWOR$1.next(GFLWOR.java:93) at org.basex.query.scope.MainModule$1.next(MainModule.java:125) at org.basex.query.QueryContext.cache(QueryContext.java:618) at org.basex.query.QueryProcessor.cache(QueryProcessor.java:112) at org.basex.core.cmd.AQuery.query(AQuery.java:86) at org.basex.core.cmd.XQuery.run(XQuery.java:22) at org.basex.core.Command.run(Command.java:257) at org.basex.core.Command.execute(Command.java:93) at org.basex.gui.GUI.exec(GUI.java:474) at org.basex.gui.GUI.access$4(GUI.java:428) at org.basex.gui.GUI$6.run(GUI.java:416) Compiling: - pre-evaluate root() to document-node() - pre-evaluate map { "param1":"default", "param2":"products" } to map - pre-evaluate map { "method":"xml", "indent":"no", "omit-xml-declaration":"no" } to map - inline $path_2 - pre-evaluate concat("c:/work/xslt_to_xquery/", "xslt_post_processing_bmwp-2526.xsl") to xs:string - inline $style_3 Optimized Query: let $document_4 := xslt:transform(db:open-pre("big-xml",0)/*, "c:/work/xslt_to_xquery/i-know-which.xsl", map { "param1": "default", "param2": "products", ... }) return file:write(concat("c:/work/xslt_to_xquery/", db:name(.), "_out_", "default", "products", ".xml"), $document_4, map { "omit-xml-declaration": "no", "method": "xml", ... }) Query: declare variable $param1 external := "default"; declare variable $param2 external := "products"; let $path := 'c:/work/xslt_to_xquery/' let $style := concat($path, 'i-know-which.xsl') let $document := xslt:transform(/*, $style, map { "param1": $param1, "param2": $param2 }) return file:write(concat($path, db:name(.), '_out_', $param1, $param2, '.xml'), $document, map { "method": "xml", "indent": "no", "omit-xml-declaration":"no" }) Query plan: <QueryPlan compiled="true"> <GFLWOR> <Let> <Var name="$document" id="4"/> <XsltTransform name="transform(input,stylesheet[,params[,options]])"> <IterPath> <DBNode name="big-xml" pre="0"/> <IterStep axis="child" test="*"/> </IterPath> <Str value="c:/work/xslt_to_xquery/i-know-which.xsl" type="xs:string"/> <Map size="2"> <Str value="param1" type="xs:string"/> <Str value="default" type="xs:string"/> <Str value="param2" type="xs:string"/> <Str value="products" type="xs:string"/> </Map> </XsltTransform> </Let> <FileWrite name="write(path,data[,params])"> <FnConcat name="concat(atom1,atom2[,...])"> <Str value="c:/work/xslt_to_xquery/" type="xs:string"/> <DbName name="name(node)"> <ContextValue/> </DbName> <Str value="_out_" type="xs:string"/> <Str value="default" type="xs:string"/> <Str value="products" type="xs:string"/> <Str value=".xml" type="xs:string"/> </FnConcat> <VarRef> <Var name="$document" id="4"/> </VarRef> <Map size="3"> <Str value="omit-xml-declaration" type="xs:string"/> <Str value="no" type="xs:string"/> <Str value="method" type="xs:string"/> <Str value="xml" type="xs:string"/> <Str value="indent" type="xs:string"/> <Str value="no" type="xs:string"/> </Map> </FileWrite> </GFLWOR> </QueryPlan> Please let me know which information you need. Many thanks Steffie

2 1

update Java
by Giuseppe Celano 15 Jan '18

15 Jan '18

Hi, I write to ask whether it is now advisable to update to Java 9 (while using the BaseX 8.6.x). Thanks. Best, Giuseppe

2 1