BaseX-Talk

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9 participants
5241 discussions

FW: XSLT support
by Fabrice Etanchaud 30 Sep '10

30 Sep '10

Thank your dear Michael, for your reply. Sorry, I missed a context for my request : When do you plan to include XSLT support in XQUERY ? For me, a basex function like 'basex:xslt($xslt_path as xs:string, $in as xs:node()) as xs:node() would be perfect stuff. -----Original Message----- From: Michael Seiferle [mailto:michael.seiferle@uni-konstanz.de] Sent: jeudi 30 septembre 2010 12:28 To: Fabrice Etanchaud Cc: basex-talk(a)mailman.uni-konstanz.de Subject: Re: [basex-talk] XSLT support Hi Fabrice, currently there is no XSLT support, but to quote Christian [1]: Am 09.03.2010 um 11:10 schrieb Christian Grün: > Dear Sebastian, > > currently, BaseX offers no extra XSLT implementation, but we know that > some users have applied the Java 1.5 XSLT implementation to transform > XML nodes from our database. As an indication, all Item instances > offer a java() method which converts nodes to Java data types (e.g. > DOM instances). > > Hope this helps, > Christian > ___________________________ So the Item.java() methods might be worth a look to transform database nodes. Feel free to ask more. Kind regards Michael [1] https://mailman.uni-konstanz.de/pipermail/basex-talk/2010-March/000119.html Am 30.09.2010 um 11:49 schrieb Fabrice Etanchaud: > Dear all at DBIS, > BaseX is a fantastic tool. > When do you plan to include XSLT support ? > > regards > Fabrice Etanchaud > _______________________________________________ > BaseX-Talk mailing list > BaseX-Talk(a)mailman.uni-konstanz.de > https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk

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XSLT support
by Fabrice Etanchaud 30 Sep '10

30 Sep '10

Dear all at DBIS, BaseX is a fantastic tool. When do you plan to include XSLT support ? regards Fabrice Etanchaud

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meaningless numbers print out to std out
by Erdal Karaca 28 Sep '10

28 Sep '10

When running basex in XQJ mode and using copy... modify..., some numeric sequences are print out to std.out in the eclipse debug console, e.g.:0 / 0 1 / 0 ...

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BaseXClient.java ignores EOF from server
by Godmar Back 27 Sep '10

27 Sep '10

BaseXClient.receive ignores EOF if the connection is severed: /** * Receives a string and writes it to the specified output stream. * @param o output stream * @throws IOException I/O exception */ private void receive(final OutputStream o) throws IOException { while(true) { final int b = in.read(); if(b == 0) break; o.write(b); } } The result is an out of memory error because you're trying to stuff infinitely many -1 values into the ByteArrayOutputStream backing o. - Godmar

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Using the options
by Maximilian Gärber 27 Sep '10

27 Sep '10

Hi, from the FAQ ( http://www.inf.uni-konstanz.de/dbis/basex/faq#5.4 ), I read that there are several options available. However, I could not figure out how to set those options from jax-rx or any other client than Java (I found in Java there's something like CONTEXT.props("key", "value") ). Regards, Max

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XPTY0019 error in basex 6.2.7 that did not appear in 6.2.3
by Godmar Back 25 Sep '10

25 Sep '10

This query: declare variable $metadata as xs:anyAtomicType := doc('libx2_meta')/metadata; let $roots := $metadata/roots[@document="libx2_feed"]/id return ... produces [XPTY0019] Context node required for roots[@document = "libx2_feed"]; xs:untypedAtomic found. in BaseX 6.2.7, but it works in 6.2.3 Is this correct? Substituting the declare variable with a let $metadata := ... works, so no showstopper here. On a related note, declaring a function "as xs:anyAtomicType()*" behaves differently in 6.2.7 than in 6.2.3. I suppose the correct semantics for this is to cast the result to an anyAtomicType; 6.2.3 did not do that but 6.2.7 does. - Godmar

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explicit use of namespace prefixes in xquery expressions does not appear to work
by Godmar Back 25 Sep '10

25 Sep '10

I'm trying to create snapshots for the problems we're having with namespaces. Here's the first one (this is not a showstopper, just something I believe is wrong). In http://top.cs.vt.edu/~gback/bx/nsbug1/ you can find http://top.cs.vt.edu/~gback/bx/nsbug1/BaseXData.bug1.zip which contains a zipped BaseX folder. The script 'test.sh' demonstrates what I believe to be a problem with 6.2.7. Notably, the following query: declare namespace libx='http://libx.org/xml/libx2'; doc("libx2_feed")//libx:entry[@src="34"] returns: <libx:entry xmlns:libx="http://libx.org/xml/libx2" xmlns=" http://www.w3.org/2005/Atom" src="34"/> (the inherited default name space for the libx:entry element is 2005/Atom. But explicitly asking for atom:src in the query: declare namespace libx='http://libx.org/xml/libx2'; declare namespace atom='http://www.w3.org/2005/Atom'; doc("libx2_feed")//libx:entry[@atom:src="34"] returns an empty sequence when in my opinion it should provide the same result. Am I wrong? (As an aside, using libx:src also doesn't return anything:) Run test.sh to reproduce. - Godmar

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namespace problems nehmen kein Ende
by Godmar Back 25 Sep '10

25 Sep '10

Hi, BaseX's server sends illegal XML to the client, see below. This should never happen, correct? - Godmar > java -cp "../../../../WEB-INF/lib/*" org.basex.BaseXClient -p 1985 Username: admin Password: BaseX 6.2.3 [Client] Try "help" to get some information. > *xquery declare namespace atom='http://www.w3.org/2005/Atom'; doc("libx2_feed")/atom:feed/atom:entry[atom:id="49"]* <entry xmlns="http://libx.org/xml/libx2" xmlns:libx=" http://libx.org/xml/libx2" xmlns="http://www.w3.org/2005/Atom"> <id>49</id> <title>Package 2</title> <updated>2010-09-23T19:17:06.183Z</updated> <author> <name>LibX Team</name> <uri>http://libx.org</uri> <email>libx.org(a)gmail.com</email> </author> <content type="html">Content created by LibX Libapp Builder</content> <libx:package> <libx:entry xmlns="http://libx.org/xml/libx2" src="50"/> </libx:package> </entry> Query executed in 2.19 ms. >

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request: please don't use java.io.Console when -P is given
by Godmar Back 24 Sep '10

24 Sep '10

The current version of BaseXClient uses java.io.Console, which makes redirecting input from stdin impossible. That makes it difficult to create any type of script that interacts with the database (essentially, it would require using 'expect' or equivalent). As far as I can see, the only thing you need java.io.Console for is reading the password. Please do not use console if the user provides the password on the command line with -P. Alternatively, or in addition, consider supporting a "source" command that reads commands from a file and sends them to the server. - Godmar

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possible bug
by Godmar Back 24 Sep '10

24 Sep '10

I received this stacktrace: Error: Possible bug? Feedback is welcome: basex-talk(a)mailman.uni-konstanz.de BaseX 6.2.3: java.lang.ArrayIndexOutOfBoundsException: 0 org.basex.io.TableDiskAccess.readBlock(TableDiskAccess.java:344) org.basex.io.TableDiskAccess.<init>(TableDiskAccess.java:67) org.basex.data.DiskData.init(DiskData.java:92) org.basex.data.DiskData.<init>(DiskData.java:56) org.basex.core.cmd.Open.open(Open.java:61) org.basex.core.cmd.Check.check(Check.java:53) org.basex.query.QueryContext.check(QueryContext.java:473) org.basex.query.QueryContext.doc(QueryContext.java:436) org.basex.query.func.FNGen.doc(FNGen.java:155) org.basex.query.func.FNGen.atomic(FNGen.java:60) org.basex.query.func.FNGen.c(FNGen.java:74) org.basex.query.func.Fun.comp(Fun.java:49) org.basex.query.expr.Arr.comp(Arr.java:34) org.basex.query.QueryContext.compile(QueryContext.java:245) org.basex.query.QueryProcessor.compile(QueryProcessor.java:74) org.basex.core.cmd.AQuery.query(AQuery.java:83) org.basex.core.cmd.XQuery.run(XQuery.java:22) org.basex.core.Command.run(Command.java:234) org.basex.core.Command.exec(Command.java:217) org.basex.core.Command.execute(Command.java:65) org.basex.server.ServerProcess.run(ServerProcess.java:158) This happens intermittently (not reproducibly) when executing: BX="java -cp ../WEB-INF/lib/basex-6.2.3.jar org.basex.BaseXClient -p 1985 -U admin -P admin" $BX -c 'create db test' $BX -q 'insert node <root /> into doc("test")' $BX -q 'doc("test")/root'

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