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

IllegalMonitorStateException
by Gerald de Jong 07 Oct '14

07 Oct '14

Dear BaseX experts, I'm wondering if anybody can see something that I'm doing wrong. I would expect it to be possible to add documents from multiple threads. Am I wrong about that?? When I set two of my datasets saving documents to BaseX 7.9 at the same time, I get this exception: $ basexserver BaseX 7.9 [Server] Server was started (port: 1984) Exception in thread "Thread-2295" java.lang.IllegalMonitorStateException at java.util.concurrent.locks.ReentrantReadWriteLock$Sync.tryRelease(ReentrantReadWriteLock.java:374) at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(AbstractQueuedSynchronizer.java:1260) at java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock.unlock(ReentrantReadWriteLock.java:1131) at org.basex.core.DBLocking.release(DBLocking.java:219) at org.basex.core.Context.unregister(Context.java:249) at org.basex.core.Command.execute(Command.java:104) at org.basex.core.Command.execute(Command.java:117) at org.basex.server.ClientListener.execute(ClientListener.java:384) at org.basex.server.ClientListener.add(ClientListener.java:355) at org.basex.server.ClientListener.run(ClientListener.java:100) All I am doing is making concurrent calls in two parallel sessions: session = new ClientSession(...) session.execute(new Open(database)) session.execute(new Set("autoflush", "false")) session.add([path string], [document-bytes]) // a zillion times session.execute(new Flush()) During the execution of the parallel add commands, it crashes. The relevant code: def withSession[T](block: ClientSession => T): T = { val session = new ClientSession(host, port, user, pass) try { block(session) } finally { session.close() } } def withDbSession[T](database: String)(block: ClientSession => T): T = { withSession { session => session.execute(new Open(database)) session.execute(new Set("autoflush", "false")) val result = block(session) session.execute(new Flush()) result } } then: withDbSession { session => // many calls to session.add(...) } -- Delving BV, Vasteland 8, Rotterdam http://www.delving.eu http://twitter.com/fluxe skype: beautifulcode +31629339805

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Re: [basex-talk] $ = AltGr + É
by Dániel Kiss-Kálmán 06 Oct '14

06 Oct '14

I think I found somehing but need help to correct it. CTRL Home is the jump to top shortkey. I went to http://www.w3.org/2002/09/tests/keys.html to check CTRL Home = keycode 36, but no charcode AltGR É = keycode 0, charcode 36 (and CTRL and ALT is pressed because of AltGR. so AltGr is nothong more than CTRL + ALT). basex / basex-core / src / main / java / org / basex / gui / layout / BaseXKeys.java line 31: /** Beginning of text. */ TEXTSTART(META, MAC ? VK_UP : VK_HOME), Can oneone please tell me how to correct it if I'm on the right way? maybe check the ALT or any other way? Daniel

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XQException with Basex 7.9
by Erol Akarsu 06 Oct '14

06 Oct '14

I am having syntax error at map(*) where 74'th chracter is first '(' do you know why? I run same script basex gui with base 7.9 w/o issue. declare variable $rawProductsFile as xs:string external; declare variable $schemaFileName as xs:string external; declare variable $tableName as xs:string external; declare variable $outputFileName as xs:string external; (:(line 7 is this line:) declare function local:getFieldMap ($schemaFileName as xs:string) as map(*) javax.xml.xquery.XQException: XQJQS001 - Invalid XQuery syntax, syntax does not pass static validation. Root Cause: net.xqj.basex.bin.bx: Encountered " "(" "( "" at line 7, column 74. Was expecting one of: "*" ... "?" ... "external" ... "{" ... "+" ... at com.ferguson.xquery.RunQueries.queryForFilterData2(RunQueries.java:147) at com.ferguson.endeca.EndecaEngine.processExtractDARFilesExt(EndecaEngine.java:377) at com.ferguson.endeca.EndecaEngine.main(EndecaEngine.java:142) at com.ferguson.xquery.RunQueries.queryForFilterData2(RunQueries.java:147) at com.ferguson.endeca.EndecaEngine.processExtractDARFilesExt(EndecaEngine.java:377) at com.ferguson.endeca.EndecaEngine.main(EndecaEngine.java:142) On Mon, Oct 6, 2014 at 11:20 AM, Dániel Kiss-Kálmán < kisskalmandaniel(a)gmail.com> wrote: > Hello Basex-Talkers, > > when I try to enter a variable I need the $ char. I use hungarian > keyboard, and $ is AltGr + É keyboard combination. The only annoying thing > is when I press AltGr + É, $ appears, but just before that cursor jumps to > the first row first char position. So $ is smiling as the first char in > the first row. No other keboard combination does that, only AltGr + É. So > every time I need a variable I use clipboard instead of pressing $ char. > > Can onyone make my life a little easier to correct it if it is possible at > all? > Or help me how to try to remove that cursor jump? > > Thanks in advance, Daniel >

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Eclipse vs BaseX Gui differences ?
by jean-marc Mercier 06 Oct '14

06 Oct '14

Hi all, Happy to write again in this mailing-list, hope you are all doing well guys ! I am encountering a small problem running my old xquery modules. I guess that it is a classical issue, but I can't remember how to look into BaseX archive :( Here is the description of the problem : I am running a query, calling module_of_mine.xqm, on two different environments. The first one is eclipse, linked to the latest interpreter from BaseX80-20140923.183154 (but I tested also against older interpreter). In this way, this query saturated my 12 G Java machine after some minutes. Then I installed module_of_mine.xqm into BaseX repo, and ran the same query using basex gui with 4G heap size. The query ran perfectly in some 30 sec. My first penny guess is that the built-in BaseX xquery profiler is doing some nice work there ? If so, is there a way to activate / desactivate this profiler from eclipse or from some configuration files ? Cheers, Jean-Marc

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$ = AltGr + É
by Dániel Kiss-Kálmán 06 Oct '14

06 Oct '14

Hello Basex-Talkers, when I try to enter a variable I need the $ char. I use hungarian keyboard, and $ is AltGr + É keyboard combination. The only annoying thing is when I press AltGr + É, $ appears, but just before that cursor jumps to the first row first char position. So $ is smiling as the first char in the first row. No other keboard combination does that, only AltGr + É. So every time I need a variable I use clipboard instead of pressing $ char. Can onyone make my life a little easier to correct it if it is possible at all? Or help me how to try to remove that cursor jump? Thanks in advance, Daniel

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deduplication problem in BaseX 7.9?
by C. M. Sperberg-McQueen 06 Oct '14

06 Oct '14

Consider the following XML document: <article> <front> <article-meta> <aff id="aff1">Tropical and Infectious Disease Hospital, Kathmandu, Nepal</aff> <aff id="aff2">Nagasaki University, Nagasaki, Japan</aff> <aff id="aff3">Department of Radiology, Kyorin University Faculty of Medicine, Tokyo, Japan</aff> <aff id="aff5">Pentax Company Limited, Tokyo, Japan</aff> <aff id="aff6">National Research Laboratory of Molecular Complex Control, Yonsei University, Seoul, Korea</aff>  <article-id pub-id-type="pmc">2570825</article-id> <article-id pub-id-type="pmid">18325280</article-id> <article-id pub-id-type="publisher-id">07-0473</article-id> <article-id pub-id-type="doi">10.3201/eid1403.070473</article-id> </article-meta> </front>  </article For convenience in trying to understand this problem, a copy of this document has been placed at [1]. When I issue the following search against this document, I get unexpected results. let $doc := doc('http://blackmesatech.com/2014/LIS590DML/data/testdata.xml') let $path1 := $doc/child::article/child::front /child::article-meta /child::aff[contains(.,"Japan")] /parent::article-meta/child::article-id, $path2 := $doc/descendant::aff[contains(.,"Japan")] /parent::article-meta/child::article-id, $path3 := $doc/article/front/article-meta/aff[contains(.,'Japan')] /../article-id, $path4 := $doc//aff[contains(.,'Japan')]/../article-id, $path5 := $doc//aff/../article-id return (count($path1), count($path2), count($path3), count($path4), count($path5)) What I expect is that path1, path2, path3, path4, and path5 should all return the same results, namely the set of four article-id elements in the document. So the sequence of counts returned should be 4 4 4 4 4. What I am finding is that path1 and path3 are returning 12 results, with each article-id present three times in the result (once, apparently, for every aff element containing the string 'Japan'). Paths 2, 4, and 5 are all returning 4 results each, as I had expected them to. So the sequence of counts actually returned is 12 4 12 4 4. In BaseX 7.6, for what it's worth, this query returns the sequence 12 12 12 12 20, which seems suggestive. Interestingly, if I initialize the variable $doc with a direct element constructor, along the lines of let $doc := document { <article>...</article> } then all counts come out as expected in 7.6, but in 7.9 the result continues to be 12 4 12 4 4. Is this an error in the handling of the / operator, or am I missing some subtle point? Many thanks. [1] http://blackmesatech.com/2014/LIS590DML/data/testdata.xml -- **************************************************************** * C. M. Sperberg-McQueen, Black Mesa Technologies LLC * http://www.blackmesatech.com * http://cmsmcq.com/mib * http://balisage.net ****************************************************************

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how generating wiki from Basex inspect:xqdoc ?
by jean-marc Mercier 06 Oct '14

06 Oct '14

Hi all, I am using BaseX' inspect:xqdoc module to generate xquery docs. I was wondering how generating html pages for accessing this documentation from the web, as for instance Leo did for http://www.woerteler.de/xquery/modules/base64 ?? Thanx cheers, Jean-Marc

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Reg : Reduce Collection Size
by Chandrasekhar 06 Oct '14

06 Oct '14

Dear Team, While creating collection for xml file it is taking double size to the xml file. Please suggest the way to reduce the collection size. We are using the the basex6.7 version Thanks & Regards Chandra Sekhar The information contained in this e-mail and any accompanying documents may contain information that is confidential or otherwise protected from disclosure. If you are not the intended recipient of this message, or if this message has been addressed to you in error, please immediately alert the sender by reply e-mail and then delete this message, including any attachments. Any dissemination, distribution or other use of the contents of this message by anyone other than the intended recipient is strictly prohibited.

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Hierarchy of databases
by Vincent Vandeghinste 30 Sep '14

30 Sep '14

We have set up a system in which we have about 17 million BaseX databases, but my operating system does not allow 17 million subdirectories in one directory ( the one set in the .basex file). In order to resolve this, we had to set up four (4) BaseX servers on four different machines so we could resolve this. Depending on the name of the BaseX database, we know on which BaseX server we have to look. As this is a work around, it would be nice to have either the possibility to have a hierarchy of databases, so we can store them into more manageable directories, or to allow to run more than one BaseX server onto a single machine (for instance, listening on different ports). For more info on the reasons why we did this: Vandeghinste and Augustinus (2014). Making Large Treebanks Searchable. The SONAR case. In Marc Kupietz, Hanno Biber, Harald Lüngen, Piotr Bański, Evelyn Breiteneder, Karlheinz Mörth, Andreas Witt, Jani Takhsha (eds.), Proceedings of the 2nd workshop on Challenges in the management of large corpora (CMLC-2) at the Ninth International Conference on Language Resources and Evaluation (LREC). Reykjavik, Iceland. pp. 15-20. Is there another way to solve this? thanks, v.

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Changing the C# BasexClient.cs
by Nilanjan Dutta 30 Sep '14

30 Sep '14

Hi All, I want to change/overload the implementation private void Send (Stream s) method in the BaseXClient.cs file. [ basex <https://github.com/BaseXdb/basex> / basex-api <https://github.com/BaseXdb/basex/tree/master/basex-api> / src <https://github.com/BaseXdb/basex/tree/master/basex-api/src> / main <https://github.com/BaseXdb/basex/tree/master/basex-api/src/main> / c# <https://github.com/BaseXdb/basex/tree/master/basex-api/src/main/c%23> / *BaseXClient.cs*] *Existing implementation:* private void Send(Stream s) { while (true) { int t = s.ReadByte(); if (t == -1) break; if (t == 0x00 || t == 0xFF) stream.WriteByte(Convert.ToByte(0xFF )); stream.WriteByte(Convert.ToByte(t)); } stream.WriteByte(0); info = Receive(); if(!Ok()) { throw new IOException(info); } } *What I want it to be:* [image: Inline image 1] This one is faster for my use case. Please do let me know how can this be done? Regards, N.D.

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