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

slow DB when updating
by radim-havlicek＠post.cz 30 Oct '18

30 Oct '18

Hello, when one client is uploading file to a database (let's say Database1), upd. basex file is created and exists until the file is uploaded to the database Database1. Problem is that meanwhile the upload is running, all other clients reading data from the Database1 read the data very, very slowly. Also clients trying to read data from Database2 or Database3 reads the data very, very slowly while the upload to Database1 is running. Also the client trying to upload data to Database2 is not successful until the upload to Database1 is done. Database1, Database2 and Database3 are databases in the same BaseX database. Can I speed up the loading data from various databases at the same time or the parallel uploading? I've read about the PARALLEL option in .basex option file, but are there any best practices what the value should be regarding to the database size or the number of databases? And are there similar best practices to CACHETIMEOUT, TIMEOUT and KEEPALIVE options? Are there more information than what is at http://docs.basex.org/wiki/Options ? Thanks for your reply in advance. Best regards, Radim Havlicek

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How to pass an XPath expression as parameter?
by Andreas Mixich 29 Oct '18

29 Oct '18

Is there a way to do something like this? declare function local:insert( $doc as node(), $at-location as xpath(), (: I know, there is no 'xpath' type, this is just for demo :) $what as node()* ) as node() { copy $c := $doc modify insert node $what into $at-location return $c }; let $xml := <xml><body>This is a paragraph.</body></xml> let $nd := <this><is><a>Test</a></is></this> return local:insert($xml, xpath("/body"), $nd) As I see it, it would need a dynamic xs:string => XPath expression conversion or a defer XPath expression, which both do not exist, for $at-location. I managed to do this, however: declare function local:insert($doc, $at-location, $what) { let $update := ``[ declare variable $doc external; declare variable $what external; declare variable $at-location external; copy $c := $doc modify insert node $what into `{$at-location}` return $c ]`` return xquery:eval($update, map{ 'doc':$doc, 'at-location':$at-location, '$what':$what }) }; let $xml := <xml><body>This is a paragraph.</body></xml> let $node := <this><is><a>Test</a></is></this> return local:insert($xml, "$c/body", $node) Ideally (for me), there would be a 'defer' XPath expression, that starts its life as a string (when passed) and then unfolds upon call. Or a type (or function) fn:xpath(), that behaves that way. Or am I just blind and don't see the obvious, and there *is* a simpler solution? -- Minden jót, all the best, Alles Gute, Andreas Mixich

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BaseX-standard-installation-with-embedded-jetty-- how to deploy other webapp
by Dieter Zanzinger 27 Oct '18

27 Oct '18

Dear BaseX-fellows, the websocket-feature in 9.1 is great. Now- to use ist, I need the BaseX-Version with embedded Jetty. My problem is, that I need another web app, too. Up to now, I used Tomcat as container for BaseX and the other webapp. Is it possible, to deploy another app in the embedded Jetty ? Any hints, how to do that? In Tomcat and - as far as I know in a standard Jetty installation - I just copy the .war into the webapps-Folder. That doesn´t work in the embedded Jetty. I would be glad for hints. Sincerely Dieter Zanzinger

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fn:format-number() for german style numbers
by Wiemer, Sebastian 27 Oct '18

27 Oct '18

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Database Updates
by Dave Kopecek 25 Oct '18

25 Oct '18

Hi All, Given a database created from catalog.xml below. What's the best way to update & add records received daily as in file daily-update.xml ? Coming from relational DBs & new to this. I ultimately need to script/automate this. Hoping there's some magic command I'm missing & looking for best way to approach the problem. Thanks, -Dave catalog.xml <?xml version="1.0" encoding="UTF-8"?> <CATALOG> <ENTRIES> <ENTRY> <SKU>1</SKU> <TITLE>Empire Burlesque</TITLE> <ARTIST>Dylan</ARTIST> <PRICE>10.90</PRICE> </ENTRY> <ENTRY> <SKU>2</SKU> <TITLE>Hide your heart</TITLE> <ARTIST>Bonnie Tyler</ARTIST> <PRICE>9.90</PRICE> </ENTRY> </ENTRIES> </CATALOG> daily-update.xml <?xml version="1.0" encoding="UTF-8"?> <CATALOG> <ENTRIES> <ENTRY> <SKU>1</SKU> <PRICE>19.90</PRICE> <NEWTHING>I wasn't here before the update</NEWTHING> </ENTRY> <ENTRY> <SKU>1971</SKU> <TITLE>Tupelo Honey</TITLE> <ARTIST>Van Morrison</ARTIST> <PRICE>8.20</PRICE> </ENTRY> </ENTRIES> </CATALOG>

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Websocket chat and session
by Maximilian Gärber 24 Oct '18

24 Oct '18

Hi, we've chat working with the 9.1 snapshot. Also private message works but only if the BaseXHTTP class is used (embedded jetty). If we start the webapp with mvn jetty:run the session info seems to get lost (also in the DBA). Br, Max

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Sir, when basex 9.1, please ;-)
by Maximilian Gärber 24 Oct '18

24 Oct '18

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determine index use in xquery:eval
by Johannes Echterhoff 24 Oct '18

24 Oct '18

Hello, Is there a way to determine if the query that is executed by xquery:eval(...) makes use of index information? Can we somehow obtain the optimized plan for that query? Best regards, Johannes

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Re: [basex-talk] Importing XML (DITA) validated with Relax NG schemas?
by Christian Grün 24 Oct '18

24 Oct '18

Hi Jason (cc to the list), > I set the CP variable like so: > CP=$MAIN/BaseX.jar:$MAIN/lib/custom/dita-ng.jar:$MAIN/lib/*:$MAIN/lib/custom/*:$CLASSPATH > > This appears to be slightly different than the example you linked Christian. I’m using BaseX 9.0.2. Does this make a difference? The start scripts in the official distributions are created from the GitHub examples I linked, so they are slightly different. > I added an echo $CLASSPATH line under the CP variable. When I run the script, the echo statement is blank. In the script, no value will be bound to the $CLASSPATH variable. Instead, you can assign values to this variable by yourself, which will then be appended to the $CP variable. If you didn’t do so, and if your Linux environment does not have any other values assigned to this variable (which is the default), the output will necessarily be empty. > Is there a way to see how the classpath is set when running this script? To answer the "how": It will be set via the line that you will find some lines below in the script, and the -cp Java argument: exec java -cp "$CP" $BASEX_JVM org.basex.BaseX "$@" If you want to know which value is bound to $CP, try "echo $CP". In Java, the full user class path at runtime will be bound to the "java.class.path" system property. It can e.g. be retrieved via proc:property('java.class.path') [1]. Christian [1] http://docs.basex.org/wiki/Process_Module#proc:property

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REQUEST REPLACE error
by radim-havlicek＠post.cz 23 Oct '18

23 Oct '18

Hello, we have currently 9 databases in our BaseX database. The biggest ones have about 9 GB, all together they have nearly 26 GB. Everything had worked fine until Friday. Since Friday, every time we sent REQUEST REPLACE command to any of those databases, it generated following error: 00:00:17.672 0.0.0.1:64492 admin REQUEST REPLACE Report\8f6a4b73-5be2-4246-b 0ad-3baaec0fbd54 [...] 4.16 ms 00:00:18.282 0.0.0.1:64492 admin ERROR Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 8.6.3 Java: Oracle Corporation, 1.8.0_171 OS: Windows Server 2012 R2, amd64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException at org.basex.io. random.TableDiskAccess.insert(TableDiskAccess.java:347) at org.basex.data. Data.insert(Data.java:912) at org.basex.data.Data.insert(Data.java:739) at org.basex.query.up.atomic.Insert.apply(Insert.java:44) at org.basex.query. up.atomic.AtomicUpdateCache.applyUpdates(AtomicUpdateCache.java:297) at org. basex.query.up.atomic.AtomicUpdateCache.execute(AtomicUpdateCache.java:281) at org.basex.core.cmd.Replace.replace(Replace.java:104) at org.basex.core. cmd.Replace.access$0(Replace.java:69) at org.basex.core.cmd.Replace$1.run (Replace.java:57) at org.basex.core.cmd.ACreate.update(ACreate.java:90) at org.basex.core.cmd.Replace.run(Replace.java:54) at org.basex.core.Command. run(Command.java:257) at org.basex.core.Command.execute(Command.ja... 612.41 ms (It is from the log file.) We currently use BaseX version 8.6.3 Any idea why the error is generated and what could be the source of the problem? (Too big database? Too big databases all together? Some database lock?) Thank you in advance for your answer. Best Regards, Radim Havlicek

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Fwd: [dita-users] [ANN] XML Prague 2019 - Call for Proposals
by Maximilian Gärber 23 Oct '18

23 Oct '18

Just cross-posting to the Basex list ;-) ---------- Forwarded message --------- From: Jirka Kosek jirka(a)kosek.cz [dita-users] <dita-users(a)yahoogroups.com> Date: Mo., 22. Okt. 2018 um 21:45 Uhr Subject: [dita-users] [ANN] XML Prague 2019 - Call for Proposals To: dita-users(a)yahoogroups.com <dita-users(a)yahoogroups.com> Hello, we are glad to announce that call for proposals for XML Prague 2018 conference is open now. The XML Prague conference will include two full days of single track sessions as well as a multitrack unconference day. The conference is held on the Thursday, Friday and Saturday (February 7-9, 2019), located at the University of Economics, nam. W. Churchilla, Prague, Czech Republic. XML Prague is a conference on XML for developers, markup geeks, information managers, and students. XML Prague focuses on markup and semantic on the Web, publishing and digital books, XML technologies for Big Data and recent advances in XML technologies. The conference provides an overview of successful technologies, with a focus on real world application versus theoretical exposition. This years topics include the following: * Markup and the Extensible Web * Semantic visions and the reality * Publishing for the 21th century * XML technologies and Big Data * State of the XML Union * XML success stories Conference website: http://www.xmlprague.cz Call for proposals: http://www.xmlprague.cz/cfp/ Registration will be opened soon. Please take note of the following important ates: December 2nd – End of CFP January 9th – Notification of acceptance/rejection January 31st – Final paper (for those who will provide it) February 7-9 – XML Prague 2019 conference This year we would like to encourage new speakers -- full paper submission is no longer needed and there will be shorter slots available for those who would like to introduce/demo something "smaller". If you have any questions, interested in sponsorship or just want to make a suggestion please send email to: info(a)xmlprague.cz Jirka Kosek on behalf of XML Prague -- ------------------------------------------------------------------ Jirka Kosek e-mail: jirka(a)kosek.cz http://xmlguru.cz ------------------------------------------------------------------ Professional XML and Web consulting and training services DocBook/DITA customization, custom XSLT/XSL-FO document processing ------------------------------------------------------------------ Bringing you XML Prague conference http://xmlprague.cz ------------------------------------------------------------------

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Reflect.forName() / Performance
by Tom Rauchenwald (UNIFITS) 23 Oct '18

23 Oct '18

Hi BaseX-Team, when profiling some of our tests i found that we spend some time in Reflect.forName(). We have 2 xquery modules in the repo (we don't call java code directly). I'm not sure why BaseX tries to load our xqm as Java Modules, but what I noticed is that Reflect.forName caches the positive case (i.e., the class is found), but not the negative case (i.e., the class is not found). I've changed the code to cache the negative case as well (see below), and noticed an improvement of about 5 percent. Our tests create and query loads of small databases, so this is maybe quite an artificial speedup. I could provide a PR if this is a worthwhile improvement in your opinion (and if I'm not missing something obvious). We're still on BaseX 8.7.6 in case that matters, as far as I could see the Code didn't change in BaseX 9. Thanks, Tom Code: public static Class<?> forName(final String name) throws ClassNotFoundException { Class<?> c = CLASSES.get(name); if(c == null) { if (CLASSES.containsKey(name)) { throw new ClassNotFoundException(name); } else { try { c = Class.forName(name); } catch (ClassNotFoundException e) { CLASSES.put(name, null); throw e; } if (!Modifier.isPublic(c.getModifiers())) throw new ClassNotFoundException(name); CLASSES.put(name, c); } } return c; }

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Fairlock and query monitoring
by Maximilian Gärber 22 Oct '18

22 Oct '18

Hi, for some time now, I've switched a production system (running Basex 8.6) to FAIRLOCK = true. With PARALLEL = 16. While this helped speed up write operations, there are situations where queries go from sub-second to minute(s) if a few more users are reading/writing at the same time. The DBs in question are incrementally indexed. Since single queries are fast, I don't know what the best way of handling these situations would be. As a last resort I was thinking about adding a cache solution (write-behind) that allows for saving and delays (batches) writes. But before introducing another component to the system, I'd like to hear what other ideas might exist. Br, Max

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Optimized query for importing content based on metadata
by Jason Davis 22 Oct '18

22 Oct '18

Hi, I’ve cobbled together a query that I want to use to import xml from the filesystem into the database based on specific metadata requirements: let $xmlroot := "/Users/jason.davis/Sandbox/dita-docs/content/" for $file in file:list($xmlroot, true()) where matches($file, 'xml') or matches($file, 'ditamap') let $doc := file:resolve-path($file, $xmlroot) return if (doc($doc)//brand[contains(.,'xyz')]) then db:add("d4st^dita-docs^meta-test", $doc) else () It works, so I’m pleased! I’m just wondering if there is a more efficient way to achieve what I want to do. I know that using a specific XPath in the doc function is one thing I can do better. Any suggestions are appreciated! Thanks, Jason

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Websocket Vers. 9.1 on Tomcat
by Dieter Zanzinger 22 Oct '18

22 Oct '18

Hi, BaseX-Team, I tested the new websocket-feature. The .zip- installation on Win10 (your embedded jetty) worked (your chat-app). But I had problems with the .war -installation on tomcat. With the standard-installation, the paths in the chat.js had to be preceded with /BaseX - ok so far. I get the login-page and main-page visible - ok. But when the main-page is loading, the network call to http://localhost:8080/BaseX/ws/chat <http://localhost:8080/BaseX/ws/chat> fails with http-code 404. I think, there is a problem with paths as well? It would be great, if you could add documentation for Tomcat as well. Thanks for this great tool! Dieter Zanzinger

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Bug/question: large collection
by Marko Niinimaki 22 Oct '18

22 Oct '18

Hi, it looks like "nodes" exceeds some integer range if I add 2 million documents (below). Another, unrelated question: our server has 24 cores. What would be the best way to utilize that kind of parallel power in queries? > info db Database Properties NAME: tmp SIZE: 47 GB NODES: -2147476286 DOCUMENTS: 705708 BINARIES: 0 TIMESTAMP: 2018-08-29T02:27:58.000Z UPTODATE: false Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 9.0.2 Java: Oracle Corporation, 1.8.0_66 OS: Linux, amd64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException

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Missing two things but great tool!
by Jennifer Kracht 22 Oct '18

22 Oct '18

Hi, thank you for this handy and comprehensive tool! I have tested other „non-open source“ but they are not working so smart like this. When I started working with XML files I had problems to find the relevant information. But this tool helped me a lot to figure out the general structure. There are just two things that I‘m missing and wanted to ask if this is planned for future: 1. I really like the map visualisation possibility. I use lot of XML with coordinates and I was impressed that the tool could figure out them automatically. But it would be much more cooler to see it with a real map in background. 2. I tried to export the XML to CSV but this seems not working. The exported file is not usable. In past I just used Excel and it’s source task pane to bring it into a table format (filtering and sorting) so an export to Excel woud be cool! I understand that it’s an open source application but maybe you have possibilities to do something for it. Best Regards Jennifer

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Tomcat & services
by Marco Lettere 16 Oct '18

16 Oct '18

Dear all, has anyone experience with exploiting the persistent jobs (services) feature under Tomcat? We have installed services with the proper jobs.xml file. When running jobs:services() in the DBA after startup, we get the services listed. Nevertheless none of the XQuery scripts inside the jobs is executed at startup of the Tomcat. When running standalone with Jetty, the scripts are executed even if, in this case, we are getting empty results when running jobs:services() in the DBA after startup. Any clue on what we should double-check? Thanks, Marco.

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Change the default user and its Password
by DK Singh 11 Oct '18

11 Oct '18

Hi All, I have to change the default user credential of BaseX where should i made the changes, when i access the url "http://localhost:8984/dba" now it opens with the default credentials which is "admin" now i have to change it, i have made the changes in the web.xml <context-param> <param-name>org.basex.user</param-name> <param-value>dharmendra</param-value> </context-param> but it is not working still it is taking the default credentials. Regards Dharmendra Kumar Singh

1 0

Output `out:format` function question
by Bridger Dyson-Smith 08 Oct '18

08 Oct '18

Hi all - I'm confused about some notation in the `out:format`[1] signature. In the wiki, I see out:format($format as xs:string, $item1 as item(), ...) as xs:string and in v9.0.2 (and the latest v9.1 beta) GUI, I see the following info: out:format(format,item1[,...]) But I'm confused by the `[,...]`. What does this mean? I've tried the following: out:format("%06d", 256) -> 000256 (: stolen from the wiki :) out:format("%06d", 256, 367) -> 000256 (: the second item() is ignored :) let $n := <t>256</t> out:format("%06d", $n) -> IllegalFormatConversionException: java.util.IllegalFormatConversionException: d != java.lang.String. I'm weak on my data model types for sure, but how should the signature here be interpreted? Thanks for your help! Best, Bridger [1] http://docs.basex.org/wiki/Output_Module#out:format

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Dynamic value for collation in FLWOR?
by Andreas Mixich 05 Oct '18

05 Oct '18

Hi, this: for $i in $item let $lang := concat("?lang=", $item/@xml:lang/string()) order by $i collation $lang return $i does not work: "[XPST0003] Expecting quote, found '$'." Any way to do this dynamically? Wouldn't order by $i collation $item/@xml:lang/string() make sense? -- Goody Bye, Minden jót, Mit freundlichen Grüßen, Andreas Mixich

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BaseX DBA via Docker
by Michael Wapp 02 Oct '18

02 Oct '18

Hi! I'm not able to access the DBA when the HTTP server is started using docker. The ports are correctly exposed. When accessing localhost:8984/dba, I get the response: /No function found that matches the request./ The docker command I use is the following: /docker run -d \// // --name basexhttp \// // --publish 1984:1984 \// // --publish 8984:8984 \// // --volume "$HOME/basex/data":/srv/basex/data \// // basex/basexhttp:latest/ Does anybody have an idea what I'm doing wrong? (If this is not the right way to ask questions about BaseX and docker - where else could I find some help?) Kind Regards Michael Wapp

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Re: [basex-talk] JAVA xquery: accessing documents
by Christian Grün 02 Oct '18

02 Oct '18

Hi Jan (cc to the list), > why is doc("users.xml") not working although the database has been > opened before? It says "resource 'home/jan/..../users.xml not found'.. > > doc("main/users.xml") is working. See the following lines in our documentation: If the argument of fn:doc or fn:collection does not start with a valid database name, or if the addressed database does not exist, the string is interpreted as URI reference, and the documents found at this location will be returned. If the DEFAULTDB option is turned on, the path argument of the fn:doc or fn:collection function will first be resolved against the globally opened database. Hope this helps, Christian

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problem with namespace
by radim-havlicek＠post.cz 02 Oct '18

02 Oct '18

Hello, I have problem with namespace 'www.ni.com/TestStand/ATMLTestResults/3.0'. It works for "return" statement, but when I use a value from this namespace in "where" or "order by" statement, the query returns just an empty string, like no results would have been found, although they exist. In more detail, I have following query: ----------------------------------------------- declare namespace nTestResultsCollection='urn:IEEE-1636.1:2013: TestResultsCollection'; declare namespace nTestResults='urn:IEEE-1636.1:2013:TestResults'; declare namespace nCommon='urn:IEEE-1671:2010:Common'; declare namespace nNi='www.ni.com/TestStand/ATMLTestResults/3.0'; let $DocumentNames := ('Report/89500019-0000-4020-a039-9f53a80d7058', 'Report/89400019-0052-4020-a0f0-e1851b8bbec2', 'Report/00000000-0000-4020-a 093-6c29d4c65c32', 'Report/00000000-0000-4020-a09c-ac632bfa5a7d', 'Report/ 00000000-0000-4020-a09c-ac635023a45c', 'Report/00000000-0000-4020-a09c-ac63e 9c5b490', 'Report/89500019-0051-4020-a170-409bbe8e4f89', 'Report/89500019- 0051-4020-a170-409b334e86c8') for $DocumentName in $DocumentNames let $Document := db:open('ATML',$DocumentName) let $TestSystemItem0 := $Document/nTestResultsCollection: TestResultsCollection/nTestResultsCollection:TestResults/nTestResults: TestStation/nCommon:Definition/nCommon:Identification/nCommon:ModelName/text () let $TestSystemItem1 := $Document/nTestResultsCollection: TestResultsCollection/nTestResultsCollection:TestResults/nTestResults: TestStation/nCommon:Definition/nCommon:Extension/nNi:Items/nNi:Item/Content/ text() let $StartDate := $Document/nTestResultsCollection:TestResultsCollection/ nTestResultsCollection:TestResults/nTestResults:ResultSet/substring-before (data(@startDateTime), 'T') let $StartTime := $Document/nTestResultsCollection:TestResultsCollection/ nTestResultsCollection:TestResults/nTestResults:ResultSet/substring-after (data(@startDateTime), 'T') let $UUID := $Document/nTestResultsCollection:TestResultsCollection/ nTestResultsCollection:TestResults/data(@uuid) let $Serial_Number := $Document/nTestResultsCollection: TestResultsCollection/nTestResultsCollection:TestResults/nTestResults:UUT/ nCommon:SerialNumber/text() let $Part_Number := $Document/nTestResultsCollection:TestResultsCollection/ nTestResultsCollection:TestResults/nTestResults:UUT/nCommon:Definition/data( @name) let $Slot_ID := $Document/nTestResultsCollection:TestResultsCollection/ nTestResultsCollection:TestResults/nTestResults:TestStation/nCommon: Definition/nCommon:Extension/nNi:Items/nNi:Item/Content/text() where (($TestSystemItem1 = 'dx5484')) order by $StartDate, $StartTime return <Result> <DocumentName>{ $DocumentName }</DocumentName> <TestSystemItem0>{ $TestSystemItem0 }</TestSystemItem0> <TestSystemItem1>{ $TestSystemItem1 }</TestSystemItem1> <StartDate>{ $StartDate }</StartDate> <StartTime>{ $StartTime }</StartTime> <Serial_Number>{ $Serial_Number }</Serial_Number> <Part_Number>{ $Part_Number }</Part_Number> <Slot_ID>{ $Slot_ID }</Slot_ID> <Additional_Info></Additional_Info> <ChildResults> { let $Childs := $Document/nTestResultsCollection:TestResultsCollection/ nTestResultsCollection:TestResults/nTestResults:ResultSet//nTestResults: TestGroup/nTestResults:Test for $Test in $Childs let $TestData := $Test/nTestResults:TestResult/nTestResults:TestData let $Limits := $Test/nTestResults:TestResult/nTestResults:TestLimits/ nTestResults:Limits let $TestId := $Test/data(@ID) let $TestName := $Test/data(@name) let $TestGroup := $Test/../substring-after(data(@name), '#') let $TestOutcome := $Test/nTestResults:Outcome/data(@value) let $Root := $Test/root() let $RootUuid := $Root/nTestResultsCollection:TestResultsCollection/ nTestResultsCollection:TestResults/data(@uuid) where (($TestName = 'Course Datum MON (7V)' and $TestGroup = 'Course Datum Input Test' and $RootUuid = $UUID)) return <Test> <TestData>{ $TestData }</TestData> <Limits>{ $Limits }</Limits> <TestId>{ $TestId }</TestId> <TestName>{ $TestName }</TestName> <TestGroup>{ $TestGroup }</TestGroup> <TestOutcome>{ $TestOutcome }</TestOutcome> <Temperature></Temperature> </Test> } </ChildResults> </Result> ----------------------------------------------- If I remove the where (($TestSystemItem1 = 'dx5484')) statement ($ TestSystemItem1 is from nNi namespace), it works fine and TestSystemItem1 values are returned properly in the result in the <TestSystemItem1>{ $ TestSystemItem1 }</TestSystemItem1>. However, if I put the $TestSystemItem1 to the where statement (like in the example above), or to the order by statement, it returns empty result. Is there a way how to fix it? Or is it fixable in the BaseX itself (maybe in the new version)? We cannot change the value of 'www.ni.com/TestStand/ ATMLTestResults/3.0' because the xml files are generated by the 3rd party. Thank you for your help in advance. Best regards, Radim Havlicek

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Re: [basex-talk] Importing XML (DITA) validated with Relax NG schemas?
by Radu Coravu 02 Oct '18

02 Oct '18

Hi Christian, Jason, Coming back to this older discussion thread. How does baseX parse XML document, does it do so using the regular "javax.xml.parsers.SAXParserFactory" factory? In this folder there is a JAR library called "dita-ng.jar": https://github.com/oxygenxml/dita-relaxng-defaults/tree/master/lib inside the JAR library's META-INF folder there is a "services" folder in which the JAR library registers a custom "org.apache.xerces.xni.parser.XMLParserConfiguration". If this parser configuration is used when parsing XML documents, and XML documents have references to Relax NG documents, the default attributes defined in the Relax NG schema would start being reported on SAX and DOM parsers parsing the XML documents. But the "xercesImpl.jar" registers the same "org.apache.xerces.xni.parser.XMLParserConfiguration" service. So in order to test if RNG-based XML parsing works with BaseX we would somehow need a way to add the "dita-ng.jar" to the baseX server's class path but it should also come in the classpath before the "xercesImpl.jar". But this would work only if the baseX code uses the "javax.xml.parsers.SAXParserFactory" when parsing XML documents instead of using directly implementations from the Xerces library. Regards, Radu Radu Coravu <oXygen/> XML Editor http://www.oxygenxml.com > Hi Christian, > > Thanks for your response. Understood with regard to Jing. The plugin I linked > also uses Jing. I'm just not clear which version. I believe the source for at > least the dita-ng.jar is linked from the repository [1]. > > > With regard to the questions asked in this post, after investigation, I > believe I have a better understanding of the problem I'm trying to solve. > Importing Relzx NG XML into the database was not the problem. The problem > exists between the database and the application layer that interfaces with it. > I opened a feature request that summarizes it [2]. > > Thanks, > Jason > > [1] https://github.com/georgebina/dita-ng > [2] https://github.com/BaseXdb/basex/issues/1624 > > On 9/25/18, 12:38 AM, "Christian Grün" <christian.gr...(a)gmail.com> wrote: > > Hi Jason, > > Please note that BaseX uses the Jing RELAX NG validator. It does not > embed the DITA Open Toolkit. > > I didn’t have time to look at the DITA OT plugin so far. It seems that > the repository of the oXygen plugin you referenced only contains the > JAR file. Do you possibly know where we can find the source files? > > Cheers > Christian > > PS: It seems that you and your colleague asked different questions in > your previous posts. Have these questions been solved? > > > > On Mon, Sep 17, 2018 at 9:55 PM Jason Davis <jason.da...(a)hortonworks.com> > wrote: > > > > My mistake. It appears I may have misstated my problem. The query I used > worked fine for importing resources. The problem appears to be related to how > BaseX parses the resources. It doesn’t appear to take into account default > attribute values. Given that the Relax NG spec clearly states default > attributes are not part of the design, this doesn’t come across as a surprise. > However, default attributes are meaningful with regard to DITA and there is a > Java framework you can install as a plugin to the DITA Open Toolkit that > supports parsing of Relax NG DITA content with default attributes [1]. > > > > Is it possible to setup databases created in BaseX with Relax NG parsing > of default attributes? Is it just a matter of including the dita-ng.jar from > the DITA OT plugin in my classpath? > > > > Thanks, > > Jason > > > > [1] https://github.com/oxygenxml/dita-relaxng-defaults > > >

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