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5251 discussions

Variable value nulled when passed to an xsl (smaller DB)
by France Baril 16 Jan '14

16 Jan '14

Hi, I am using BaseX 7.8 beta 3b557bd. When I pass a variable where the value is provided by a function ( *let **$string-variable* := *freeze-test:get-localized-string*('en-us', 'application')) that extracts the data from the database, I cannot pass it as a parameter to an xslt. It nulls the value. I attached a code sample and a simple database that holds a single file. In the sample, if you replace the line : *let **$string-variable* := *freeze-test:get-localized-string*('en-us', 'application') with *let **$string-variable := *'application', you'll notice that the value is output correctly. The issue is not with getting the value. When using the original variable setting (*let **$string-variable* := *freeze-test:get-localized-string*( 'en-us', 'application')), the debug line (*let* *$debug* := *file:write*( 'debug-string-var.txt', *$string-variable*)) does output the extracted value in the .txt file correctly, which means the variable $string-variable has been set, it just doesn't survive being passed as a parameter to xslt:transform. Note that this used to work in BaseX 7.7.2. The fact that the variable gets nulled is a completely new phenomena. To access the test function: http://localhost:8984/test/xsl-params Thanks, France P.S. You can disregard the previous request with larger files (sent to the moderator by the mail server). It looks like old files were still indexed, weighting on the DB size. -- France Baril Architecte documentaire / Documentation architect france.baril(a)architextus.com (514) 572-0341

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Re: [basex-talk] restxq with html form get, syntax to declare variable as argument
by e-letter 16 Jan '14

16 Jan '14

The 'restxq.xqm' was edited as below: (:~ : This module contains some basic examples for RESTXQ annotations : @author BaseX Team :) module namespace page = 'http://basex.org/modules/web-page'; (:~ : This function generates the welcome page. : @return HTML page :) declare %rest:path("{$x}") %output:method("xhtml") %output:omit-xml-declaration("no") %output:doctype-public("-//W3C//DTD XHTML Basic 1.1//EN") %output:doctype-system("http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd") function page:start($x) as element(Q{http://www.w3.org/1999/xhtml}html) { <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>BaseX HTTP Services</title> <link rel="stylesheet" type="text/css" href="static/style.css"/> </head> <body> <h3>Example 2</h3> <p>The next example presents how form data is processed via RESTXQ and the POST method:</p> <form method='get' name='databasequeryform' > <p> <select name='booktitle' > <option> Everyday Italian </option> <option> Harry Potter </option> </select> <input type="submit" value='send' /> </p> </form> </body> </html> }; declare %rest:GET %rest:path("xmldatabasefile.xml/bookstore/book") %rest:form-param("booktitle","{$x}") %rest:produces("text/html") %output:method("xhtml") function page:bookstore() as element(bookstore) { <bookstore> { let $x := fn:doc("xmldatabasefile.xml")/bookstore/book/title[contains(text(),'Everyday Italian')]/parent::* return $x } </bookstore> }; The server response: HTTP ERROR 400 Problem accessing /. Reason: Stopped at /path/to/webapp/restxq.xqm, 58/10: [BASX0003] Variable $x is not specified as argument. Powered by Jetty:// What is my mistake for the declaration: ... function page:bookstore() as element(bookstore) { ...

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Variable value nulled when passed to an xsl
by France Baril 15 Jan '14

15 Jan '14

Hi, I am using BaseX 7.8 beta 3b557bd. When I pass a variable where the value is provided by a function ( *let **$string-variable* := *freeze-test:get-localized-string*('en-us', 'application')) that extracts the data from the database, I cannot pass it as a parameter to an xslt. It nulls the value. I attached a code sample and a simple database that holds a single file. In the sample, if you replace the line : *let **$string-variable* := *freeze-test:get-localized-string*('en-us', 'application') with *let **$string-variable := *'application', you'll notice that the value is output correctly. The issue is not with getting the value. When using the original variable setting (*let **$string-variable* := *freeze-test:get-localized-string*( 'en-us', 'application')), the debug line (*let* *$debug* := *file:write*( 'debug-string-var.txt', *$string-variable*)) does output the extracted value in the .txt file correctly, which means the variable $string-variable has been set, it just doesn't survive being passed as a parameter to xslt:transform. Note that this used to work in BaseX 7.7.2. The fact that the variable gets nulled is a completely new phenomena. To access the test function: http://localhost:8984/test/xsl-params -- France Baril Architecte documentaire / Documentation architect france.baril(a)architextus.com (514) 572-0341

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Experience for management of tons of xml doc using exist-db
by easy 15 Jan '14

15 Jan '14

Hi,all, Based on my discontinuously near ten years experience using exist-db, I made a plan to using exist-db to management more than millions people's EHR, till now, it almost can work, here is what I have done: 1) split the large quantity of doc into small collection( not one collection for one people, but one doc for one people), target to speed query personal info and insert new record nodes. 2) with the kind developer 's help , we can using new range index to quick query big data based on some conditions. 3) using the backup policy to do backup. ... But, there are still some difficult to worry about: 1) exist-db often caused corrupt for a heavy load query, and this often cause db recover fail. and how to avoid heavy load query to affect other query? 2) when will use re-index? after corrupt? the re-index process is very time consumed. how to accelerate re-index? 3) how to control concurrently update db? often this cause the db stop responding to xquery, and as 1). everyday there will more than 1000000 files add to the db, so this is a difficult problem. 4) how to control backup copys ? the backup file will cost large disk space if all old copy exist. Thanks for advice -- 此致 easy 莫愁前路无知己，天下谁人不识君。

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Experience for management of tons of xml doc using exist-db
by easy 14 Jan '14

14 Jan '14

1 0

Unexpected error. Improper use?
by France Baril 14 Jan '14

14 Jan '14

Hi, I have code that used to work with 7.7.2, but that crashes with 7.8. I was able to create a simple piece of code that reproduces the error. I file:write the result before the db:replace. Notice how some elements have been re-ordered. To run the attached file: * Create an empty DB named 'tui-test' * Access: http://localhost:8984/tui/test-1 Details: Unexpected error: Improper use? Potential bug? Your feedback is welcome: Contact: basex-talk(a)mailman.uni-konstanz.de Version: BaseX 7.8 beta 132460f Java: Apple Inc., 1.6.0_65 OS: Mac OS X, i386 Stack Trace: java.lang.ArrayIndexOutOfBoundsException: -3 at org.basex.io.random.TableMemAccess.read1(TableMemAccess.java:44) at org.basex.data.Data.kind(Data.java:283) at org.basex.query.value.node.DBNode.parent(DBNode.java:250) at org.basex.query.value.node.ANode.nsScope(ANode.java:160) at org.basex.query.util.DataBuilder.addElem(DataBuilder.java:223) at org.basex.query.util.DataBuilder.addNode(DataBuilder.java:79) at org.basex.query.util.DataBuilder.addElem(DataBuilder.java:242) at org.basex.query.util.DataBuilder.addNode(DataBuilder.java:79) at org.basex.query.util.DataBuilder.addDoc(DataBuilder.java:101) at org.basex.query.util.DataBuilder.addNode(DataBuilder.java:78) at org.basex.query.util.DataBuilder.build(DataBuilder.java:64) at org.basex.query.util.DataBuilder.build(DataBuilder.java:54) at org.basex.query.value.node.ANode.dbCopy(ANode.java:93) at org.basex.query.up.primitives.DBNew.data(DBNew.java:104) at org.basex.query.up.primitives.DBNew.addDocs(DBNew.java:86) at org.basex.query.up.primitives.DBAdd.prepare(DBAdd.java:47) at org.basex.query.up.DatabaseUpdates.check(DatabaseUpdates.java:109) at org.basex.query.up.ContextModifier.apply(ContextModifier.java:92) at org.basex.query.up.Updates.apply(Updates.java:120) at org.basex.query.QueryContext.update(QueryContext.java:340) at org.basex.query.QueryContext.value(QueryContext.java:324) at org.basex.query.QueryContext.iter(QueryContext.java:309) at org.basex.http.restxq.RestXqResponse.create(RestXqResponse.java:72) at org.basex.http.restxq.RestXqModule.process(RestXqModule.java:108) at org.basex.http.restxq.RestXqFunction.process(RestXqFunction.java:100) at org.basex.http.restxq.RestXqServlet.run(RestXqServlet.java:31) at org.basex.http.BaseXServlet.service(BaseXServlet.java:58) 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:457) 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:1075) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009) 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:489) at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:949) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1011) 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:668) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52) 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:695) -- France Baril Architecte documentaire / Documentation architect france.baril(a)architextus.com (514) 572-0341

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access basex through xmldb-api -- no connection -- Invalid URI error
by Ioannis Kavvouras 14 Jan '14

14 Jan '14

Hello, I am trying to connect to a baseX (remote) server through xmldb-api following the examples in the git-hub but it fails giving Invalid Uri error. I can access the database through REST using the following url: http://<serverip>:8181/BaseX772/rest/wcs-collection/ but I cannot connect using the xmldb url xmldb:basex://<serverip>:1984/wcs-collection or xmldb:basex://<serverip>:1984/ or xmldb:basex://<serverip>:1984/rest or using the 8181 port. Regards Yannis MSc Student at the University of Athens, Greece

2 3

Release Package
by Stefan Sechelmann 14 Jan '14

14 Jan '14

Hello, I’m trying to keep up to date with BaseX and test integrating the BaseX snapshot versions (at the moment 7.8 beta) into our environment. Here is my question: How do I build the structure that can be downloaded from the website containing all files and folders. Running e.g. mvn package yields only the API and core jar files. What am I missing? Best regards Stefan -- Stefan Sechelmann DFG-Forschungszentrum Matheon Mathematik für Schlüsseltechnologien Technische Universität Berlin Sekretariat MA 8-3 Tel. 030/314 29 486 Straße des 17. Juni 136 Fax 030/314 79 282 10623 Berlin sechel(a)math.tu-berlin.de http://page.math.tu-berlin.de/~sechel

2 1

adding too many documents is slowing down collection operations
by Fabrice Etanchaud 14 Jan '14

14 Jan '14

Dear all, I'm working on a collection containing tens of millions of documents, updated weekly. My first guess to store these documents was to simply db:add/replace/remove them. This solution is slowing things down as the count of documents increases. For example, opening one collection takes up to 4 minutes. I believe that the document list is an in memory structure. Is there a way to speed things up, or do I have to change sides with the following guess, in order to reduce the 'physical' document list size : 1.group documents in 'logical' documents on insertion (fewer documents containing new or updated documents under a root xml element) 2. remove the old version of these documents in the previous 'logical' documents with xquery update. Has anybody already find that problem, and a workaround ? BaseX is just fantastic ! Best regards, Fabrice Etanchaud Questel/Orbit

2 3

XMLPrague 2014
by Christian Grün 14 Jan '14

14 Jan '14

Hi all, we are happy to give you a little update on our BaseX User Meeting: It will now take place on Friday afternoon (Feb 14) fro 14:30 to 18:00! You are invited to visit our user meeting page: http://lanyrd.com/2014/basex/ We will soon disclose the full agenda. For now, we are glad to announce the first speakers (more to follow!): Gerrit Imsieke, le-tex GmbH Lars Johnsen, National Library of Norway Jean-Marc Mercier, CRIMERE Yoann Maingon, Minerva Your feedback is welcome, Christian

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