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5252 discussions

EXPath package dependencies
by Clark, Ash 01 Apr '20

01 Apr '20

Hello, I’m trying to define the dependencies for a general-purpose EXPath package, one which I plan to use in both eXist-db and BaseX. So far I’ve got this in expath-repo.xml*: <dependency processor="basex"/> <dependency processor="http://exist-db.org" semver-min="4.0.0"/> Based on the spec, I gather that `//dependency/@processor` is supposed to be non-exclusive. However, when I try to install the package into BaseX, I get the error “Package version is not supported.” Is this a bug? Is there something else I should do? Warmly, Ash * https://github.com/NEU-DSG/wwp-public-code-share/blob/counting_robot/counti… Ashley M. Clark (she/her) XML Applications Developer Digital Scholarship Group Northeastern University Libraries as.clark(a)northeastern.edu (617) 373-5983

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Re: [basex-talk] How to apply array:for-each on an array of arrays?
by Martin Honnen 31 Mar '20

31 Mar '20

On 31.03.2020 18:32, Ben Engbers wrote: > Hi, > > For (my personal) clarity, I have split up the original function in two > parts: > > declare function local:step_one($nodes as node()*) as array(*)* > { > let $text := for $node in $nodes > return $node/text() => > tokenize() => distinct-values() > let $idf := $text => > tidyTM:wordCount_arr() > return $idf > }; > > In local:step_one(), I first create a sequence with the distinct tokens > for each $node. All the sequences are joined in $text. > I then call wordCount_arr to count the occurences of each word in $text: > > declare function tidyTM:wordCount_arr( > $Words as xs:string*) > as array(*) { > for $w in $Words > let $f := $w > group by $f > order by count($w) descending > return ([$f, count($w)]) > } ; > > I would say that tidyTM:wordCount_arr returns a sequence of arrays but I > am not certain if I have specified the correct return-type? Reading the code I agree that the return type seems to be a sequence of arrays but therefore I wonder why you don't get a similar error as later on with declaring array(*) and not array(*)* > Calling local:step_one(tidyTM:remove_Stopwords($nodes, "Stp", $Stoppers)) > returns: > ["probleem", 703] > ["opgelost.", 248] > .... > > I had hoped that calling the following local:wordFreq, would add the > idf to each element but instead I get an error > > declare function local:wordFreq_idf($nodes as node()*) as array(*) > { > let $count := count($nodes) > let $idf := local:step_one($nodes) > let $result := for-each( $idf, > function($z) {array:append ($z, math:log($count div $z(2) ) ) } ) > return $result > }; > [XPTY0004] Cannot promote (array(xs:anyAtomicType))+ to array(*): $idf > := ([ "probleem", 703 ], [ "opgelost.", 248 ], ...). The message tries to tell you that the declared return type array(*) is a single array while the function returns a (non-empty) sequence of arrays so using declare function local:wordFreq_idf($nodes as node()*) as array(*)* would remove that error. To insert the third value into each array I think you want let $result := $idf ! array:append(., math:log($count div .(2) ))

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How to apply array:for-each on an array of arrays?
by Ben Engbers 31 Mar '20

31 Mar '20

Hi, In textmining, the 'idf' or inverse document frequency is defined as idf(term)=ln(ndocuments / ndocuments containing term). I am working on a function that should return this idf. This function: declare function local:wordFreq_idf($nodes as node()*) as array(*) { let $count := count($nodes) let $text := for $node in $nodes return $node/text() => tokenize() => distinct-values() let $idf := $text => tidyTM:wordCount_arr() return $idf }; returns: ["probleem", 703] ["opgelost.", 248] ["dictu", 235] ["opgelost", 217] ["medewerker", 193] ... For "probleem", the idf should be calculated as ln($count/703). Since there are 1780 nodes this would result in 0.929011751. I tried to exten the 'let $idf' line with: => array:for-each(function($idf) {array:append($idf, math:log($count div $idf[2]) )}) which should result in ["probleem", 703, 0.929011751] but no mather what I do, every time I get this error: [XPTY0004] Cannot promote (array(xs:anyAtomicType))+ to array(*): ([ "probleem", 703 ], [ "opgelost.", 248 ], ...). Is it possible to apply array:for-each on an array of arrays? Ben

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collection('/test-db-1/bib')//Q{}libro versus collection('/test-db-1/bib')//libro
by Martin Honnen 30 Mar '20

30 Mar '20

Using BaseX 9.3.2, why does a query collection('/test-db-1/bib')//Q{}libro return 6 items while collection('/test-db-1/bib')//libro gives 0 items? If I run collection('/test-db-1/bib')//Q{}libro, collection('/test-db-1/bib')//libro the info window shows Compiling: - rewrite fn:collection([uri]) to document-node() item: collection("/test-db-1/bib") -> db:open-pre("test-db-1", 12000002) - merge steps: descendant::element(libro) - rewrite fn:collection([uri]) to document-node() item: collection("/test-db-1/bib") -> db:open-pre("test-db-1", 12000002) - remove step without results: element(libro) - rewrite iter step to empty sequence: element(libro) -> () - rewrite cached path to empty sequence: db:open-pre("test-db-1", 12000002)/descendant-or-self::node()/() -> () - rewrite expression list to iter path: (db:open-pre("test-db-1", 12000002)/descendant::element(libro), ()) -> db:open-pre("test-db-1", 12000002)/descendant::element(libro) Optimized Query: db:open-pre("test-db-1", 12000002)/descendant::element(libro) Query: collection('/test-db-1/bib')//Q{}libro, collection('/test-db-1/bib')//libro Result: - Hit(s): 6 Items - Updated: 0 Items - Printed: 1455 b - Read Locking: test-db-1 - Write Locking: (none)

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Re: [basex-talk] serialize with SerialMethod.XML
by jfrm.maurel＠gmail.com 30 Mar '20

30 Mar '20

Hi Christian, Le 30/03/2020 à 15:51, Christian Grün a écrit : > You should always close instances of classes that inherit the > Closeable interface. Thank you for the tip. I will change my code. Regards. -- Jean-François MAUREL PIMECA http://www.pimeca.com

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serialize with SerialMethod.XML
by jfrm.maurel＠gmail.com 25 Mar '20

25 Mar '20

Hi, I am currently learning how to use BaseX with Java in embedded mode. When I use the following code with SerialMethod.BASEX every thing is fine however if I replace it with SerialMethod.XML I obtain an empty file without any error message. Could you please tell me what I am doing wrong in the second case (with SerialMethod.XML) ? ====================== public static void serialize(String query, String outputFileUri) { try { QueryProcessor processor = new QueryProcessor(query, context); File outputFile = FileProc.newFile(outputFileUri); SerializerOptions so = new SerializerOptions(); so.set(SerializerOptions.ENCODING, "UTF-8"); so.set(SerializerOptions.METHOD, SerialMethod.BASEX); // so.set(SerializerOptions.METHOD, SerialMethod.XML); so.set(SerializerOptions.OMIT_XML_DECLARATION, YesNo.NO); Serializer serializer = Serializer.get(new FileOutputStream(outputFile), so); Item item = processor.iter().next(); serializer.serialize(item); processor.close(); } catch (QueryException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } ====================== BaseX 9.3.3 from github Java 8 Windows 10 Regards -- Jean-François MAUREL PIMECA http://www.pimeca.com

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Unwanted XML output when using RestXQ custom response
by Mickael Desfrenes 19 Mar '20

19 Mar '20

Hello, This is my first post here, I hope this is the right list for such questions. I am using RestXQ to send assets to the browser. Given that I want to control some headers ("expires" and such), I thought I could use RestXQ custom responses. Here's what I came up with: declare %rest:path("/plugins/{$filePath=.*}") function max.file:pluginUIFile($filePath as xs:string){ let $path := file:parent(file:parent(static-base-uri())) || "/plugins/" || $filePath return (<rest:response> <http:response status="200"> <http:header name="expires" value="Wed, 21 Oct 2222 07:28:00 GMT"/> </http:response> </rest:response>, max.util:rawFile($path)) }; The HTTP response does have the wanted header. However, the body has some unwanted XML at the top: <rest:response xmlns:rest="http://exquery.org/ns/restxq"> <http:response xmlns:http="http://expath.org/ns/http-client"/> <output:serialization-parameters xmlns:output="http://www.w3.org/2010/xslt-xquery-serialization"> <output:media-type value="text/ecmascript"/> </output:serialization-parameters> </rest:response> class DocumentBasket { constructor(basket_id = "basket") { this.storage = localStorage; this.basket_id = basket_id; } _fetch_basket_data() { let basket_data = this.storage.getItem(this.basket_id); if (basket_data === null) { basket_data = []; } else { basket_data = JSON.parse(basket_data); } return basket_data; } [more js below] Since I'm fairly new to the basex framework, I'm not sure if I'm doing something wrong or if it's some kind of bug. Thank you for your help, M. Desfrênes

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Copy data from one database to another(basex)
by DK Singh 18 Mar '20

18 Mar '20

Hi I have to copy content from one database to another database, database containing xml files and word files. When i try to copy using function db:copy('test','test1') where 'test' is source database and 'test1' is destination database then it copies only xml files word files are not copied, can anyone suggest how can i achieve this. Regards Dharmendra Kumar Singh

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running Xunit tests from maven
by Duncan Paterson 15 Mar '20

15 Mar '20

HI Basex folks, i m looking into building two expath packages one for exist and one for bases using maven. I have the build configured and get proper xars, but i m struggling with running basex’s Xunit tests as part of the maven build. I didn’t find anything on the mailing list or in the docs about that. If somebody has an example project they could point me towards that would be greatly appreciated. Basically i want to know if this is possible at all, and if so what dependencies / libs i need to declare inside my pom for this to work. Greetings Duncan Ceterum censeo exist-db.org esse conriganda

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Problem with file in db
by Jason Davis 13 Mar '20

13 Mar '20

Hello, I have a confounding problem involving a database that is deployed to a web server. The database will support a web app that provides an SPA interface to the database and lists resources through various APIs. When I test the app locally, everything works fine. However, when I deploy the database to a web server, one file in particular grounds the app to a halt. Apparently, this particular document does not exist in the database: [basex:doc] Database path 'd4st^newco-docs^master/shared/KuduVariables.xml' yields no documents. In addition, I can use the CLI to list the database contents and it's clearly listed there. When I attempt to delete it (i.e. delete shared/KuduVariables.xml), the result is 0 resources deleted. What would cause something like this to happen? Is there a preferred method for deploying the db that would prevent weird things like this happening? Thanks, Jason -- Jason Davis Staff Tools Engineer, Content Development jason.davis(a)cloudera.com Mobile: 510-225-8281

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