BaseX-Talk

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6 participants
5250 discussions

standalone vs GUI character parsing
by Bridger Dyson-Smith 13 Jun '17

13 Jun '17

Hi all - I'm able to create a database with the GUI from an XML document that contains an invalid character (U+0000) -- I guess BaseX does some character scrubbing, which is awesome :). When I try creating a database with the same input XML document from the commandline (using the basex executable), I get an error message. Here are my commands in standalone mode: BaseX 8.5.3 [Standalone] Try 'help' to get more information. > create db test-bad-char /usr/home/bridger/src/another-test.xml "/usr/home/bridger/src/another-test.xml" (Line 4): An invalid XML character (Unicode: 0xb) was found in the element content of the document. > xquery db:create("test-bad-char", "/usr/home/bridger/src/another-test.xml", "/usr/home/bridger/src/", map { "chop": false() }) Stopped at ., 1/10: [FODC0002] "/usr/home/bridger/src/another-test.xml" (Line 4): An invalid XML character (Unicode: 0xb) was found in the element content of the document. > This isn't a surprise (I'm more surprised (pleasantly) by the GUI behavior); is there a way to apply the same "scrubbing" from the GUI in standalone mode? I'm sure there is, but I'm not able to figure out which option to apply. As always, thank you for your time and trouble, and thanks for BaseX. Best, Bridger

3 17

fetch:content-type file: customisation
by Andy Bunce 12 Jun '17

12 Jun '17

Hi, I notice that fetch:content-type()[1] returns "application/octet-stream" for files with the commonly used XProc file extensions *.xpl and *.xproc. This seems to be driven from the list in src/main/resources/media-types.properties [2] Would it be possible to add these extensions as "application/*xproc*+xml" or add a mechanism to allow extension/customisation? Maybe similar to [3] For static files served from jetty adding mime-mapping elements to web.xml works [4] /Andy [1] http://docs.basex.org/wiki/Fetch_Module#fetch:content-type [2] https://github.com/BaseXdb/basex/blob/master/basex-core/ src/main/resources/media-types.properties [3] http://docs.oracle.com/javase/7/docs/api/javax/activation/ MimetypesFileTypeMap.html [4] https://stackoverflow.com/questions/33803109/how-can-i-set-mime-mapping-to-…

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Isilex - CMs FronteEnd for Basex (v.1.2.1)
by Xavier-Laurent SALVADOR 10 Jun '17

10 Jun '17

Hi, Isilex is a solutions stack (X)RX CMS for online and collaborative XML Corpus and Ressources databases management based upon @Basexdb Database Driver available at http://www.isilex.fr We're glad to announce the new release of Isilex v.1.2.1, Basex 8.6.4 compliant, with online CSS editor integrated. We made a handsome try to provide a (french - sorry) doc for Isilex (following « Guide » link on the website). Help is needed :) All the best to everyone XLS

1 0

BaseX - questions about few issues
by radim-havlicek＠post.cz 06 Jun '17

06 Jun '17

Hello, we would like to build our database application on BaseX in our company. However, we would need to solve following issues we encountered with. 1) BaseX GUI is automatically opened with administration permissions without any login request. Can it be fixed? 2) Once user is created in a database, he or she has the same rights in all databases. Can it be fixed so the user has particular permisssion per database? 3) Or better, would it be posssible to set user permission per collection (like in Sedna or MonoDB)? 4) I can see the users are stored in users.xml file, including with their permission and hashed password. It is a security issue for us because the digest hash can be decrypted in few seconds. Is it possible to obscure that sensitive information, or to not store it in the file? 5) All queries are stored in logs. Queries for user creation or password change are stored in plain text there. Is there a way to obscure that sensitive information? 6) It only is possible to create BaseX users. Is Active Directory account support in road-map, especially support for AD groups? It would be much appreciated. 7) BaseX supports http protocol. Is it possible to make it work with https protocol as well? If there is an answer "no" on some of those questions above, is correction of those issuees in road-map? Thank you for your answers in advance. Best regards, Radim Havlicek Test Engineer III Honeywell International s.r.o.

3 2

Create Options are deleted from .basex config file
by marc＠crosseyed.nl 05 Jun '17

05 Jun '17

Options manually added to the .basex config file are deleted by BaseX. For example, these Create Options all get deleted from the .basex file after running a standalone basex script: ADDARCHIVES = true CREATEFILTER = *.anx STRIPNS = true INTPARSE = true LANGUAGE = Dutch (also tried 'nl') Basex 8.5.3 on Linux Regards, Marc

3 2

Combining modules into a single file
by George Sofianos 02 Jun '17

02 Jun '17

Hi, and thanks for your awesome engine again! I wonder if there is an easy and complete way of combining xquery files into a single file. To give an example, I have about 16-17 xquery files, some are only 50-100 lines but some can be up to 1500 lines. Because of multiple reasons, (legacy web application behaviour that makes it hard to deploy updates, network file system that doesn't always work), it is preferable to have one single file to execute on the XQuery engine. I know it can be done with ant for example, but it's not very easy to cover all cases, so maybe someone has a better idea :) I don't mind implementing something in a different language, as long as I know it will be doable. Thanks, George

2 2

restxq output cdata-section-elements
by Maximilian Gärber 01 Jun '17

01 Jun '17

Hi, when setting %output:cdata-section-elements("KSP DESCRIPTION") on a restxq request, I get <DESCRIPTION><![CDATA[ ]]><p>Zur Aktivierung des...</p><![CDATA[ ]]><ul> <li>außerordentlich hoher Biotingehalt (3 Millionen µg pro kg)</li> <li>gut bioverfügbares Zinksulfat</li> <li>ausgewogenes Biotin-Zink-Verhältnis</li> </ul><![CDATA[ ]]><p> I would expect everything inside the DESCRIPTION element to be part of CDATA. But CDATA ends before the first child element This happens with Basex 8.5.2 Br, Max

2 2

Create user doesn’t work if DBPATH folder does not exist
by Simon Chatelain 31 May '17

31 May '17

Hello all, I just faced an issue in my application using BaseX 8.6.4 when trying to create a user. If the folder that will contain the databases (DBPATH in .basex configuration file) does not exist when you try to create a user, the creation of the “users.xml” file fails. To reproduce, make sure that the folder defined by DBPATH does not exist, and execute: final Context ctx = new Context(); try (final Session session = new LocalSession(ctx);) { session.execute(new CreateUser("USERNAME", "USERPASSWORD")); } Then nothing happens. The users.xml file is not created. While executing this: final Context ctx = new Context(); try (final Session session = new LocalSession(ctx);) { session.execute(new CreateDB("TESTDB")); session.execute(new CreateUser("USERNAME", "USERPASSWORD")); } Works as expected as the CreateDB() command will create the missing folder. Is it on purpose or was it overlooked? Best regards Simon Chatelain

2 1

Evaluating XPath within custom QueryModule
by Johannes Echterhoff 29 May '17

29 May '17

Hello, I am writing a custom QueryModule that can be used to parse information from a given XML element. The module has a function like the following: public ParsedType parse (Object arg) throws QueryException { if (arg instanceof ANode) { return utils.parse((ANode) arg); } else if (arg instanceof BXElem) { return utils.parse((Element) arg); } else { ... } } It turned out that parsing requires additional information that can be found either on the XML element itself or - more importantly for my question - in one of its ancestors. The XPath expression to determine the information looks like this: <context XML element>/ancestor-or-self::*[@attributeX or nsX:SomeElement/*/@attributeX][1]. I can evaluate this expression in the XQuery before calling method "parse" from my custom query module, and add the value of attributeX as an argument. To do so, I actually have a function to determine the value of attributeX: declare function local:determineAttributeX($elmt as element()) { let $elementWithAttributeX := $elmt/ancestor-or-self::*[@attributeX or nsX:SomeElement/*/@attributeX][1] return if (empty($elementWithAttributeX)) then () else if($elementWithAttributeX/@attributeX) then $ elementWithAttributeX/data(@attributeX) else $ elementWithAttributeX/nsX:SomeElement/*/data(@attributeX) }; However, I wonder if it is possible to evaluate the expression also within the query module itself, i.e. when method "parse" is called. Is there a way to do so? That would reduce the complexity of the XQuery that calls "parse" (and the value of "attributeX" is always of interest when "parse" is called, so ideally "parse" can determine the value itself). I searched the internet (the archive of this mailing list as well as stackoverflow) for quite some time but could not find an answer to this question. Any help would therefore be greatly appreciated. Best regards, Johannes Echterhoff

2 6

Running BaseX on a parallel cluster
by Kristian Kankainen 25 May '17

25 May '17

Hi all! Is there any way to make BaseX run in parallel on a cluster? Through school I have access to several clusters and I got interested in trying out if BaseX can take advantage of parallel computing. I know my question is vague. To try to be more specific - can I compile BaseX with some extra parameters? Is there anything written about this topic? For the background information I got interested in trying out running parallel XQuery because from somewhere (that I can't find in the mailing list archive) I read that XQuery falls under the "dataflow" programming paradigm [1] and as such should be parallelizable out-of-the-box. Also being a functional language with no side-effects makes automatic parallelization easier. I am not a computer scientist and/but I am aware it isn't that easy as I might make it sound. Cheers Kristian K [1] https://en.wikipedia.org/wiki/Dataflow_programming

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