BaseX-Talk September 2017

basex-talk@mailman.uni-konstanz.de

30 participants
38 discussions

How do create XML for a one byte hex field that is used as a flag byte
by Dave Day 07 Sep '17

07 Sep '17

Greetings list, I don't know if I am asking this question correctly. I'm new to the XML world. I can google this, get some hits, but when I read the posts, it is not really clear to me. Any help is appreciated. On an IBM mainframe, I've got a one byte hex field defined as follows: PCDTFLAG DS XL1 FLAG TO INDICATE ORIGIN OF INFO DTFLENTP EQU B'10000000' INFO CAME FROM MODULE ENTRY POINT DTFLMEPS EQU B'01000000' DB2 MEPL LIST HAS BEEN SEARCHED DTFLMEPL EQU B'00100000' INFO CAME FROM DB2 MEPL LIST DTFLDB2S EQU B'00010000' DSNMODS HAS BEEN SEARHCED DTFLDSNM EQU B'00001000' INFO CAME FROM DSNMODS SEARCH DTFLSYST EQU B'00000100' INFO CAME FROM SYSTEM TABLE DTFLSYSS EQU B'00000010' SYSTEM TABLE HAS BEEN SEARCHED DTFLCMNC EQU B'00000001' COMMON AND NUC HAS BEEN SEARCHED I need to be able to create XML for the field PCDTFLAG. OK, define an element as hexBinary. But then how do I define the bits within the byte. On the mainframe side, with the equated values, I can OR the flag byte with the equated value, and this will set the correct bit on in the byte. OI PCDTFLAG,DTFLENTP will turn on bit 0 in the 1 byte field if it is not on already. I can test for the bit on or off. TM PCDTFLAG,DTFLENTP JZ some-other-area-of-code will branch if the bit is off JO another-area-of-code will branch if the bit is on So, I guess I am asking two questions. One, how to give definition to bits within a byte, and two, how to manipulate and test those defined bits. Regards, -- Dave Day

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XML import issue (header related)
by Ron Katriel 06 Sep '17

06 Sep '17

Hi, I ran into a peculiar issue with importing an XML file from DrugBank into BaseX. It involves the file header, which looks like this: <?xml version="1.0" encoding="UTF-8"?> <drugbank xmlns="http://www.drugbank.ca" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.drugbank.ca http://www.drugbank.ca/docs/drugbank.xsd" version="5.0" exported-on="2017-08-31"> The XML file (which is quite large ~3GB) loads in cleanly but queries executed against it produce no output (no errors reported). When I change the header to the following and re-import the file everything works fine: <?xml version="1.0" encoding="UTF-8"?> <drugbank> I had this issue for a while (go thought this every month) so thought it might be good to share. I am currently using BaseX 8.6.4. Any idea why this is happening? Attached is the console trace for both cases (they show subtle differences in the query plans). Thanks, Ron Ron Katriel, Ph.D. | Principal Data Scientist | Medidata Solutions 350 Hudson Street, 7th Floor, New York, NY 10014 rkatriel(a)mdsol.com | direct: +1 201 337 3622 | mobile: +1 201 675 5598 | main: +1 212 918 1800

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Re: [basex-talk] Fetching Images
by Günter Dunz-Wolff 06 Sep '17

06 Sep '17

Sorry about the question, I only had to put the url to <img/> source. Fetching wasn’t necessary.

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Fetching Images
by Günter Dunz-Wolff 06 Sep '17

06 Sep '17

Hi all, in my RESTXQ-App I’m trying to fetch images (for example via „https://maps.googleapis.com/maps/api <https://maps.googleapis.com/maps/api>“): return fetch:binary("https://maps.googleapis.com/maps/api <https://maps.googleapis.com/maps/api>/blabla“) With fetch:content-type I get the right type: image/png. But with fetch:binary I only get the binary as large string but the browser doesn’t render the picture. If I load the url in browser directly, the image renders as expected. What am I doing wrong? Thanks for any help, Guenter

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Re: [basex-talk] New basex-version -> broken paths
by Günter Dunz-Wolff 04 Sep '17

04 Sep '17

Hi Michael, thanks for the information. I changed let $tokens := doc("tokens.xml")//entry to let $tokens := fetch:xml("tokens.xml")//entry (tokens.xml is in the same directory as the xq-file.) The problem is still the same: [bxerr:BXFE0001] Resource "/Users/User/tokens.xml (No such file or directory)" not found. The path should be: /Users/User/Documents/project/BaseXWeb/tokens.xml Same problems with RESTPATH empty or path to project-folder. As I wrote, I have only problems with the REST-Service, not with RESTXQ. Best, Guenter

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Simple Map Operator in oXygen XML (XQJ)
by Omar Siam 04 Sep '17

04 Sep '17

Hi! I just tried to use ther Simple Map Operator while writing an XQuery in oXygen XML and executing the query using a client/server BaseX 8.6.6 data source. I configured it as described here: http://docs.basex.org/wiki/Integrating_oXygen When I use the Simple Map Operator (!) I only get "Invalid XQuery syntax, syntax does not pass static validation.". For example using "(1 to 10) ! element node { . }" If I run that XQuery in DBA for example it works. Any ideas? Best regards Omar Siam

3 3

New basex-version -> broken paths
by Günter Dunz-Wolff 04 Sep '17

04 Sep '17

Hi all, I updated my aged basex-version (8.5.3) to 8.6.6. With the new version, my defined file-references are broken, for example: let $style := doc('../xq_diff/remove_elements_from_doc.xsl‘) Even files in the same directory with the XQuery-file (corrigenda.xq) like: let $tokens := doc(„tokens.xml") With 8.5.3 the REST-Requests with http://localhost:8984/rest?run=xqs/corrigenda.xq <http://localhost:8984/rest?run=xqs/corrigenda.xq> worked without problems. With 8.6.6 and with the same request I’ll get the following error: Stopped at ., 11/18: [FODC0002] Resource '/Users/xq_diff/remove_elements_from_doc.xsl' does not exist OR Stopped at ., 79/26: [FODC0002] Resource '/Users/xxx/kleist_tokens.xml' does not exist. It does work in BaseXGUI but not with the http-server. Thanks for any help, Guenter

3 2

file:name -> admin permission required
by Günter Dunz-Wolff 01 Sep '17

01 Sep '17

Hi all, I updated my older basex-version, now I get in my RESTXQ-App the error 'admin permission required‘ with let $collection := collection("data/stories") for $doc in $collection let $file_name := file:name($doc) return $file_name Whats going wrong? Thanks for any help. Guenter

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BaseX-Talk September 2017