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

Behaviour of doc() changed?
by Marco Lettere 14 Jul '15

14 Jul '15

Hello, when using doc() we used to pass into it a relative (to the static base uri) filesystem path to an xml file. This was parsed without any problems. Now (basex 8.2.2) the parsing works but we get on the standard output stating that the database (named as the first path element) does not exist. I understand that the doc function first looks up the database server and then accesses the filesystem. Is it like that? Has this changed or is the exception just printed out whereas in previous versions it was not? Regards, Marco.

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DBA - display the number of results from a query
by James Ball 14 Jul '15

14 Jul '15

Hello, I’m finding the web DBA functionality of BaseX more and more useful but one thing I really miss from the GUI is the display of the number of results in the top right corner. Many times when I’m running a quick query I want to know how many results there are and see at least an example of the results (as often the full set is too long to be displayed). I know I could add count() round the query and run it again but I’m lazy. :) So, I’m thinking it would be good to add the total results to the DBA Queries page I was about to start putting some code together when I realised I don’t know what would be the most efficient way to do this - so I’m turning to the list to see if a) other people think this would be useful, and b) what suggestions people have of the best way to do it. I’m thinking of returning the total count as an HTTP header so there’s no impact on any code currently using the result. What’s the best way of getting the count though? The naive solution is to run each query twice, once to get the count and once to get the results but that seems less than ideal. I think there’s something with caching of queries that may help. Is that how it’s done in the GUI? Any pointers gratefully received and of course I’ll share any code back to the project. Thanks, James

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Parsing options on db:add (cdata-section-elements)
by Tim Thompson 13 Jul '15

13 Jul '15

Hello, I am trying to retrieve some non-XML RDF data (as "text/turtle") from a SPARQL endpoint. I need to output the Turtle as a CDATA section inside a <script> tag in an XForms (X)HTML file, then add that file to a database. The file gets added correctly, but I'm not able to generate the CDATA section. Here is the function: db:add("xforms", document { $xslt-pi, $css, $form }, "turtle-test.xml", map {"cdata-section-elements": "script"}) When I run this, I get an error: [bxerr:BASX0002] Unknown database option 'cdata-section-elements'. I get the same error no matter which option I use (not just "cdata-section-elements"), so I guess I may be using the wrong syntax. Hope someone can point me in the right direction! Thanks in advance, Tim -- Tim A. Thompson Metadata Librarian (Spanish/Portuguese Specialty) Princeton University Library

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Any Way to Create A Database And Commit To It From REST Service?
by Eliot Kimber 13 Jul '15

13 Jul '15

In my link management application I'm trying to refactor my code to move my link management metadata out of the content database (the one that otherwise has the user's XML docs) and into a separate database. The problem I'm running into is that because db:create() is put last on the pending updates list, you can't do return ( db:create('new-database'), db:add('new-database', '<some-data/>')) There doesn't seem to be a direct way through the RESTXQ-managed application to create the database since updating functions don't return anything (so I can't, for example, have the root page handler ensure that the database is there simply by calling an XQuery function to initial it). I think the only solutions are: 1. Have the database creation managed outside the REST application (e.g., in my git hooks, which are where the content database creation is done) 2. Use the redirect technique so that, for example, the root page is handled by an updating function that does the database initialization and then returns a redirect to the real root page handler. Have I missed an option? Thanks, Eliot ---- Eliot Kimber, Owner Contrext, LLC http://contrext.com

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Fwd: Bug?
by Сергей Чесноков 13 Jul '15

13 Jul '15

Hi! What is it?: Unexpected error: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 8.2.2 Java: Oracle Corporation, 1.8.0_45 OS: Windows 7, amd64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: 1 at org.basex.query.func.admin.AdminWriteLog.item(AdminWriteLog.java:25) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:64) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.List.value(List.java:146) at org.basex.query.expr.TypeCheck.value(TypeCheck.java:127) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.If.value(If.java:133) at org.basex.query.expr.gflwor.GFLWOR.value(GFLWOR.java:72) at org.basex.query.expr.TypeCheck.value(TypeCheck.java:127) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.If.value(If.java:133) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:192) at org.basex.query.func.FuncCall.invoke(FuncCall.java:87) at org.basex.query.func.FuncCall.value(FuncCall.java:60) at org.basex.query.func.FuncCall.iter(FuncCall.java:66) at org.basex.query.MainModule.iter(MainModule.java:110) at org.basex.query.QueryContext.iter(QueryContext.java:349) at org.basex.http.restxq.RestXqResponse.create(RestXqResponse.java:55) at org.basex.http.restxq.RestXqModule.process(RestXqModule.java:101) at org.basex.http.restxq.RestXqFunction.process(RestXqFunction.java:109) at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:44) at org.basex.http.BaseXServlet.service(BaseXServlet.java:64) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:503) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:429) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494) at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:982) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1043) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Unknown Source) __________________________________________________________________________________________________________ and: message Unexpected error: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 8.2.2 Java: Oracle Corporation, 1.8.0_45 OS: Windows 7, amd64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: 1 at org.basex.query.func.admin.AdminWriteLog.item(AdminWriteLog.java:25) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:64) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.List.value(List.java:148) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:192) at org.basex.query.func.FuncCall.invoke(FuncCall.java:87) at org.basex.query.func.FuncCall.value(FuncCall.java:60) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.If.value(If.java:133) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.If.value(If.java:133) at org.basex.query.expr.gflwor.GFLWOR.value(GFLWOR.java:72) at org.basex.query.expr.TypeCheck.value(TypeCheck.java:127) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.If.value(If.java:133) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:192) at org.basex.query.func.FuncCall.invoke(FuncCall.java:87) at org.basex.query.func.FuncCall.value(FuncCall.java:60) at org.basex.query.func.FuncCall.iter(FuncCall.java:66) at org.basex.query.MainModule.iter(MainModule.java:110) at org.basex.query.QueryContext.iter(QueryContext.java:349) at org.basex.http.restxq.RestXqResponse.create(RestXqResponse.java:55) at org.basex.http.restxq.RestXqModule.process(RestXqModule.java:101) at org.basex.http.restxq.RestXqFunction.process(RestXqFunction.java:109) at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:44) at org.basex.http.BaseXServlet.service(BaseXServlet.java:64) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1521) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1478) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source) Sincerely, Sergey Chesnokov. ----------------------------------------------------------------------

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Why is $node/@attr != 'blue' false when $node is null?
by France Baril 10 Jul '15

10 Jul '15

The code below returns 'blue', but I was expecting 'not blue'. The class attribute on an empty node is null; null != blue. let $node := () return if($node/@class != 'blue') then 'not blue' else 'blue' -- France Baril Architecte documentaire / Documentation architect france.baril(a)architextus.com

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DBA login error
by Tim Thompson 08 Jul '15

08 Jul '15

Hello, I'm a first-time BaseX user and have just downloaded version 8.2.2. When I start an HTTP server and attempt to log in to the DBA app with default admin credentials, I get an HTTP 500 error stating that there was a "Problem accessing /dba/login-check." However, if I go back and refresh the login page, I see that I have been logged in as admin and can access the DBA interface. Similarly, I get a 500 error when trying to access "/dba/logout." Is there something I have failed to configure? Thanks in advance, Tim Stack trace for "/dba/login-check" error: Version: BaseX 8.2.2 Java: Oracle Corporation, 1.7.0_60 OS: Mac OS X, x86_64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: 1 at org.basex.query.func.admin.AdminWriteLog.item(AdminWriteLog.java:25) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:64) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.List.value(List.java:148) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:192) at org.basex.query.func.FuncCall.invoke(FuncCall.java:87) at org.basex.query.func.FuncCall.value(FuncCall.java:60) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.If.value(If.java:133) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.If.value(If.java:133) at org.basex.query.expr.gflwor.GFLWOR.value(GFLWOR.java:72) at org.basex.query.expr.TypeCheck.value(TypeCheck.java:127) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.If.value(If.java:133) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:192) at org.basex.query.func.FuncCall.invoke(FuncCall.java:87) at org.basex.query.func.FuncCall.value(FuncCall.java:60) at org.basex.query.func.FuncCall.iter(FuncCall.java:66) at org.basex.query.MainModule.iter(MainModule.java:110) at org.basex.query.QueryContext.iter(QueryContext.java:349) at org.basex.http.restxq.RestXqResponse.create(RestXqResponse.java:55) at org.basex.http.restxq.RestXqModule.process(RestXqModule.java:101) at org.basex.http.restxq.RestXqFunction.process(RestXqFunction.java:109) at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:44) at org.basex.http.BaseXServlet.service(BaseXServlet.java:64) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:503) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:429) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494) at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:982) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1043) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Thread.java:745) -- Tim A. Thompson Metadata Librarian (Spanish/Portuguese Specialty) Princeton University Library

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8.2.3 beta dba login_check and logout error
by James Ball 07 Jul '15

07 Jul '15

Hello, Is anyone else getting an error when logging in or logging out of the dba in 8.2.3 beta a09e2b9? (The login seems to work despite the error, but the log out doesn’t) Thanks, James HTTP ERROR 500 Problem accessing /dba/logout. Reason: Unexpected error: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 8.2.3 beta a09e2b9 Java: Oracle Corporation, 1.8.0_31 OS: Mac OS X, x86_64 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: 1 at org.basex.query.func.admin.AdminWriteLog.item(AdminWriteLog.java:25) at org.basex.query.expr.ParseExpr.value(ParseExpr.java:64) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.expr.List.value(List.java:148) at org.basex.query.expr.gflwor.GFLWOR.value(GFLWOR.java:72) at org.basex.query.expr.TypeCheck.value(TypeCheck.java:127) at org.basex.query.QueryContext.value(QueryContext.java:421) at org.basex.query.func.StaticFunc.invValue(StaticFunc.java:192) at org.basex.query.func.FuncCall.invoke(FuncCall.java:87) at org.basex.query.func.FuncCall.value(FuncCall.java:60) at org.basex.query.func.FuncCall.iter(FuncCall.java:66) at org.basex.query.MainModule.iter(MainModule.java:110) at org.basex.query.QueryContext.iter(QueryContext.java:349) at org.basex.http.restxq.RestXqResponse.create(RestXqResponse.java:55) at org.basex.http.restxq.RestXqModule.process(RestXqModule.java:101) at org.basex.http.restxq.RestXqFunction.process(RestXqFunction.java:109) at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:44) at org.basex.http.BaseXServlet.service(BaseXServlet.java:64) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:503) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:429) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494) at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:971) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1033) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) at java.lang.Thread.run(Thread.java:745)

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BaseX 8.2.2
by Christian Grün 06 Jul '15

06 Jul '15

Dear all, BaseX 8.2.2 has just been released! It contains all kinds of minor optimizations and bug fixes [1,2]. Since recently, we are adding new features of upcoming releases already in minor releases. This means that you can already use most of the features marked with "Version 8.3" in our documentation [3] with BaseX 8.2.2. Of course we won't offer features in minor releases that endanger backward compatibility. Enjoy, Christian [1] http://basex.org [2] https://github.com/BaseXdb/basex/commits/master [3] http://docs.basex.org

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Organizing Large Numbers of Small Documetns?
by Eliot Kimber 05 Jul '15

05 Jul '15

In my link management application I'm creating a potentially large number of small documents that will serve as a where-used index over the content documents. Are there any potential issues with how these documents are organized into directories within database? The simplest thing would be to put them into one directory but I could also organize them into one directory per document used (which would then result in one directory per document that has links to it, which in a DITA context would normally be one directory for each document as every document save a few should have at least one link to it). So if I had a repository with a 100,000 topics, each with at least one link, is it a problem to have either 100,000 * x files in one directory or 100,000 directories under one parent directory? I didn't see anything in the docs about limitations or practices for storing large numbers of documents. Thanks, Eliot ---- Eliot Kimber, Owner Contrext, LLC http://contrext.com

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