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5268 discussions

Time complexity
by Jordan Castillo 08 Jul '19

08 Jul '19

Hello BaseX Staff, Question regarding why the time complexity of my query is dramatically different in these 2 situations. I'm building a map inside a function that is called many times, and this function receives an ID and then has to retrieve some values to store inside the map. In case #1, I check if the values exists first, otherwise I store '()': "lowerValue" : if (exists($context//packagedElement[@xmi:id=$currID]/ownedAttribute[@xmi:id=$propList[2 + $mult]]/lowerValue[@value])) then data($context//packagedElement[@xmi:id=$currID]/ownedAttribute[@xmi:id=$propList[2 + $mult]]/lowerValue/[@value]) else (), "upperValue" : if (exists($context//packagedElement[@xmi:id=$currID]/ownedAttribute[@xmi:id=$propList[2 + $mult]]/upperValue[@value])) then data($context//packagedElement[@xmi:id=$currID]/ownedAttribute[@xmi:id=$propList[2 + $mult]]/upperValue/[@value]) else () Total Time: 1526.0 In case #2:

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problem: accessing inner java class methods with bases java bindings
by Florian Eckey 08 Jul '19

08 Jul '19

Hi, I use basex java bindings in my project. It works fine but when I try to access inner java classes i cant find a way to get it work. I will use the SimpleJavaMail libs and there is a class called “MailerRegularBuilder” which is an inner class of “MailerBuilder”, especially with the method “buildMailer()”. Here is a sample snippet of the based java class source code: public class MailerBuilder { ... private MailerBuilder() { } public static class MailerRegularBuilder extends MailerGenericBuilder<MailerRegularBuilder> { ... public Mailer buildMailer() { return new Mailer(this); } ... } } In java I can easily access this method in the inner class with the following code (in red): MailerRegularBuilder mailRegularBuilder = MailerBuilder.withSMTPServer("smtp.gmail.com", 465, "username1", "password1"); mailRegularBuilder = mailRegularBuilder.withProperty("mail.smtp.starttls.enable", "true"); mailRegularBuilder = mailRegularBuilder.withProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); Mailer inhouseMailer = mailRegularBuilder.buildMailer(); inhouseMailer.sendMail(email); That works fine (remember it is only a snipped). With XQuery I always get a class not found exception or a unknown method exception with the following code: declare namespace Email = "java:org.simplejavamail.email.Email"; declare namespace EmailBuilder = "java:org.simplejavamail.email.EmailBuilder"; declare namespace Mailer = "java:org.simplejavamail.mailer.Mailer"; declare namespace MailerBuilder = "java:org.simplejavamail.mailer.MailerBuilder"; declare namespace EmailPopulatingBuilder = "java:org.simplejavamail.email.EmailPopulatingBuilder"; declare namespace MailerRegularBuilder = "java:org.simplejavamail.mailer.MailerBuilder.MailerRegularBuilder"; declare namespace MailerGenericBuilder = "java:org.simplejavamail.mailer.MailerGenericBuilder"; declare variable $local:fromName := "Florian Eckey"; declare variable $local:fromEmailAdress := "a.b(a)gmail.com"; declare variable $local:username := "username1" declare variable $local:password := "password1"; declare variable $local:smtpServer := "smtp.gmail.com"; declare variable $local:smtpPort := 465; declare function local:sendMail($toName, $toEmailAdress, $subject, $plainText, $attachementName, $attachement, $attachementType) { let $emailPopulatingBuilder := EmailBuilder:starting-blank() let $emailPopulatingBuilder := EmailPopulatingBuilder:from($emailPopulatingBuilder,$local:fromName, $local:fromEmailAdress) let $emailPopulatingBuilder := EmailPopulatingBuilder:to($emailPopulatingBuilder,$toName, $toEmailAdress) let $emailPopulatingBuilder := EmailPopulatingBuilder:withSubject($emailPopulatingBuilder,$subject) let $emailPopulatingBuilder := if($attachement) then EmailPopulatingBuilder:withAttachment($attachementName, $attachement, $attachementType) else $emailPopulatingBuilder let $emailPopulatingBuilder := EmailPopulatingBuilder:withPlainText($emailPopulatingBuilder,$plainText) let $email := EmailPopulatingBuilder:buildEmail($emailPopulatingBuilder) let $mailerRegularBuilder := MailerBuilder:withSMTPServer($local:smtpServer, xs:int($local:smtpPort), $local:username, $local:password) let $mailerRegularBuilder := MailerGenericBuilder:withProperty($mailerRegularBuilder,"mail.smtp.starttls.enable", "true") let $mailerRegularBuilder := MailerGenericBuilder:withProperty($mailerRegularBuilder,"mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory") let $mailer := MailerRegularBuilder:buildMailer($mailerRegularBuilder) return (Mailer:sendMail($mailer,$email),"email send") }; The red line will always throw the error: [XPST0017] Unknown class: org.simplejavamail.mailer.MailerBuilder.MailerRegularBuilder. Beside: I copied all the used java libs into the lib folder of my basex instance. All other classes were found. Does anyone have an idea how to access this inner class methods? Or is it not possible and I have to implement a custom java lib which masks the code in one static method? Best regards, Florian PS: Sorry for the unhighlighted code, but it was just copied from the basex gui.

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Re: [basex-talk] x509
by Ветошкин Владимир 07 Jul '19

07 Jul '19

1 0

Export XML from Basexgui no longer allow for options
by France Baril 05 Jul '19

05 Jul '19

Hi, It used to be that we could specify options when exporting content using basexgui. As the tool no longer allows for this, I'm looking for a way to protect our content integrity. I tried adding indent= false and chop=false to the .basexgui file, but it doesn't seem to help. The issue we have is with mixed content, when a block with only inline elements gets indented, it adds space at the beginning and the end of paragraphs. Ex. In <title><span>fdjjflsdjflkd</span></title>, adding spaces before and after the span is an issue. It doesn't matter much when transforming to HTML, but it does other formats and differences in the spacing of any mixed content is a change significant enough to trigger retranslation of our content to other languages. I'll try writing an .xq to export content, but I thought I should mention that the current export doesn't protect content integrity. -- France Baril Architecte documentaire / Documentation architect france.baril(a)architextus.com

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x509
by Ветошкин Владимир 05 Jul '19

05 Jul '19

2 1

Adding a file to DB with automatically updated index disables attribute index
by France Baril 05 Jul '19

05 Jul '19

Hi, Here are the steps to reproduce: 1. In Oxygen XML, in the data explorer (webDAV connection), create and save a new xml file with content <test/> 2. Run a query with db:attribute System returns: [db:no-index] Database 'en-us' has no attribute index. The problem is resolved after a db:optimize(), but it's not practical in our case. -- France Baril Architecte documentaire / Documentation architect france.baril(a)architextus.com

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JS223 wrapper
by Marco Lettere 05 Jul '19

05 Jul '19

Hi all, is anyone on the list aware of a JS223 compliant wrapper for BaseX in order to include XQuery scripting "seamlessly" into scriptable applications? Thanks. Marco.

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admin:write-log in updating query
by Markus Wittenberg 04 Jul '19

04 Jul '19

Hi BaseX team, I wonder why I can't use admin:write-log as output of an updating function Using ... return if(file:is-file($path)) then ( try { file:delete($path) } catch * { admin:write-log('Could not delete image file ' || $path) (: works with update:output('...'):) } , delete node $img ) else ( delete node $img ) I get the error *Expressions must all be updating or return an empty sequence.* Kind regards -- Markus Wittenberg Tel +49 (0)341 248 475 36 Mail wittenberg(a)axxepta.de ---- axxepta solutions GmbH Lehmgrubenweg 17, 88131 Lindau Amtsgericht Berlin HRB 97544B Geschäftsführer: Karsten Becke, Maximilian Gärber

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Extracting a single attributes value
by Jordan Castillo 03 Jul '19

03 Jul '19

Hello BaseX Staff, I am trying to finish building a map of data I have been working on and am nearly complete, but am stuck on trying to retrieve an elements value, which should just be a single integer in string format. The function doing the work: declare function local:propGenerator($propList, $currID){ let $context := db:open($documentName) let $ret := for $x at $pos in 1 to (xs:integer(count($propList) div 3)) let $mult := ($pos - 1) * 3 return map:merge(($propsMap, map:entry(concat("prop", $pos), map{"xmi:type" : $propList[1 + $mult], "xmi:id" : $propList[2 + $mult], "name" : $propList[3 + $mult], "lowerValue" : 1, "upperValue" : ($context//packagedElement/[@xmi:id=$currID]/ownedAttribute/[@xmi:id=$propList[2 + $mult]]/upperValue/[@value]) }))) return $ret }; this function takes a list of strings, which come in triplets. The map is nearly built except for the "lowerValue" and "upperValue" and I'm getting an error I can't make sense of because of the line: "upperValue" : ($context//packagedElement/[@xmi:id=$currID]/ownedAttribute/[@xmi:id=$propList[2 + $mult]]/upperValue/[@value]) This search is going to be mirrored for the lowerValue once I get it working. The value in the "upperValue" element should always exist, and this should be unique because I am providing the IDs to narrow it down. The error message I am getting: [XPTY0019] ownedAttribute: node expected, array(*) found: [ false() ]. I tried wrapping the line in question with: if (exists($context//packagedElement/...restOfQuery...)) then 2 else () and I got the same error. If I omit the line in question, the query works so I am certain that line is the problem. For additional info, I tried the search using an absolute path earlier and I didn't have context so I am now using the context declaration. The snippet of the XML being used: <packagedElement xmi:type="uml:Class" xmi:id=" _18_5_2_4c1014b_1538502774996_709119_83315" name="Tape"> <ownedAttribute xmi:type="uml:Property" xmi:id=" _19_0_3e30194_1541527239959_149409_93200" name=" InformationAssuranceProperties" visibility="private"> <lowerValue xmi:type="uml:LiteralUnlimitedNatural" xmi:id=" _19_0_3e30194_1541527239960_849380_93202"/> <upperValue xmi:type="uml:LiteralUnlimitedNatural" xmi:id=" _19_0_3e30194_1541527239960_70368_93203" value="*"/> </ownedAttribute>  </packagedElement> Any advice here would be greatly appreciated, I am currently looking for other solutions but figured asking here would be the most helpful. Thank you, Jordan Castillo

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XQuery: Subsequence of a sequence
by Jordan Castillo 03 Jul '19

03 Jul '19

Hello BaseX Staff, I am trying to access members of a sequence that I have created already, but it whenever I use the functions subsequence() it returns the entire sequence, and count() always returns 1. The code: xquery version "3.1"; declare namespace map="http://www.w3.org/2005/xpath-functions/map"; declare namespace xmi="http://www.omg.org/spec/XMI/20131001"; declare namespace uml="http://www.omg.org/spec/UML/20131001"; declare namespace MagicDraw_Profile=" http://www.omg.org/spec/UML/20131001/MagicDrawProfile"; declare namespace Extra_stereotypes=" http://www.magicdraw.com/schemas/Extra_stereotypes.xmi"; declare namespace UAF="http://www.omg.org/spec/UPDM/20121004/UPDM-Profile"; ( let $begin := db:open("CubeSatUML2.5XMIv3")/xmi:XMI/uml:Model/packagedElement let $modelContent := $begin//packagedElement[@xmi:type="uml:Class"] (: Combine the names of the elements with their ID's :) let $names := $modelContent/@name let $ids := $modelContent/@xmi:id (: Grab all stereotypes, properties:[attributes, comments] :) let $stereotypes := for $id in $ids let $stereo1 := /xmi:XMI/*[@base_Element=$id] let $stereo2 := /xmi:XMI/*[@base_Class=$id] let $attributes := $begin//*[@xmi:id=$id]/ownedAttribute/[@name | @xmi:type | @xmi:id] let $comments := $begin//*[@xmi:id=$id]/ownedComment/[@name | @xmi:type | @xmi:id | @body] let $combined := ($id, $stereo1/name(), $stereo2/name(), $comments, $attributes, "") return $combined let $final := for $seq in $stereotypes return subsequence($seq, 1, 1) (: ^ the part in question:) return $final ) I realize I am creating this in a very weird way, but I want to keep the data together and have not thought of another solution. I have tried 'for each'ing over the '$sequences' and tokenizing to get the elements out, but I get an error: let $finalMap := for $seq in $stereotypes return tokenize($seq, '\s') [XPTY0004] Item expected, sequence found: ("uml:Property", "_18_5_2_4c1014b_153850.... When I print '$stereotypes', I get what appears to be a sequence of sequences (which I don't think is a real thing, but it appears to be that) Ex output: xmi:id="_18_5_2_4c1014b_1538500371989_609286_80522" UAF:ResourceArtifact [(xmi:type="uml:Property", xmi:id="_18_5_2_4c1014b_1538500468390_289646_80939", name="flight")] [(xmi:type="uml:Property", xmi:id="_18_5_2_4c1014b_1538500488269_847951_81240", name="ground")] xmi:id="_18_5_2_4c1014b_1538500376501_394659_80590" UAF:ResourceArtifact [(xmi:type="uml:Comment", xmi:id="_18_5_2_4c1014b_1538501028725_896600_82978", body="The ground supporting equipment and operations that support the spacecraft mission.")] [(xmi:type="uml:Property", xmi:id="_18_5_2_4c1014b_1538500492755_533021_81326", name="ground Communications")] [(xmi:type="uml:Property", xmi:id="_18_5_2_4c1014b_1538500495333_439654_81369", name="ground Command and Control")] [(xmi:type="uml:Port", xmi:id="_18_5_2_4c1014b_1538582001724_435913_83660", name="Flight_Ground")] My end goal is to have a map of maps, where the root map has keys of element names (currently in $names) and the value is a map of all the properties of this element. To do this I have to deconstruct this monster I have created, and maybe I am on the wrong path entirely but some direction would be greatly appreciated. End goal format: map{ elementName : map { stereotypes: map{ stereotype_Name_1: stereotype_ID_1, stereotype_Name_2: stereotype_ID_2 }, attributeName: map{ 'id': actual_ID_here, 'lowerValue': someValue, 'upperValue': "*" }, comment: map{ 'id': actual_ID_here, 'xmi:type': 'uml:Comment', 'body': actual_Comment_Here }, 'id': actual_ID_here } } Thanks, Jordan Castillo </longWindedQuestion>

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