[MarkLogic Dev General] rest search using range index

Paul M pjmaip at yahoo.com
Mon Mar 30 07:57:40 PDT 2015


Yes, see the error. Please delete.
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 Subject: General Digest, Vol 129, Issue 66
   
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Today's Topics:

  1. Re: fn:error (Murray, Gregory)
  2. Re: Data profiling on large datasets (Gary Vidal)
  3. rest search using range index (Paul M)


----------------------------------------------------------------------

Message: 1
Date: Mon, 30 Mar 2015 12:52:26 +0000
From: "Murray, Gregory" <gregory.murray at ptsem.edu>
Subject: Re: [MarkLogic Dev General] fn:error
To: MarkLogic Developer Discussion <general at developer.marklogic.com>
Message-ID: <89CB1298-E514-4201-B6F9-596A6426D69F at ptsem.edu>
Content-Type: text/plain; charset="utf-8"

510 is not defined in the HTTP spec, but I believe the function xdmp:set-response-code() will let you set the code to whatever you want:

xdmp:set-response-code(510,"Description of what you mean by 510")


On Mar 30, 2015, at 8:31 AM, Erik Hennum wrote:

Hi, Pragya:

One footnote to Asit's guidance -- if you're extending the REST API, you can throw the RESTAPI-SRVEXERR error to set the HTTP response.

For more, see:

    http://docs.marklogic.com/guide/rest-dev/extensions#id_33892


Erik Hennum

________________________________
From: general-bounces at developer.marklogic.com<mailto:general-bounces at developer.marklogic.com> [general-bounces at developer.marklogic.com] on behalf of Asitmohan Nautiyal [asitmohan.n at hcl.com]
Sent: Monday, March 30, 2015 5:15 AM
To: MarkLogic Developer Discussion
Subject: Re: [MarkLogic Dev General] fn:error

Hi Pragya,

500 response code is coming from MarkLogic predefined error utility file where all response code has been defined as per specific message or standards. You need to change that configuration file manually but its not recommended at all.

You can create your own custom xml file with your custom codes and messages. While throwing the respective error you can return your own customize response.


Regards,
Asit Nautiyal
________________________________
From: general-bounces at developer.marklogic.com<mailto:general-bounces at developer.marklogic.com> [general-bounces at developer.marklogic.com] on behalf of Kapoor, Pragya [PKapoor1 at innodata.com]
Sent: Monday, March 30, 2015 4:54 PM
To: MarkLogic Developer Discussion
Subject: [MarkLogic Dev General] fn:error

Hi,

I am using fn:error as :

if($e//error:code/text() eq "XDMP-LEXVAL") then
    fn:error(xs:QName("ERROR"), "Incorrect Data Entered in Search Query")
else ()

I get a response as :

<error-info>
    <code>500</code>
    <error-type>server</error-type>
    <message>Internal Server Error | ERROR - Incorrect Data Entered in Search Query</message>
    <description>Incorrect Data Entered in Search Query (ERROR): in /rest-apis/search/search-document.xqy at line number 616</description>
</error-info>?

In my response error code is 500. I need to change the code to some other no say 510.
How can I achieve this?

Thanks
Pragya
?


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Message: 2
Date: Mon, 30 Mar 2015 13:38:41 +0000
From: Gary Vidal <Gary.Vidal at marklogic.com>
Subject: Re: [MarkLogic Dev General] Data profiling on large datasets
To: "general at developer.marklogic.com"
    <general at developer.marklogic.com>
Message-ID:
    <F6CA301823F6334598E3FE5F973EBAE115C12B41 at EXCHG10-BE02.marklogic.com>
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Alex,

I hoisted this code from a project I wrote that does analysis and captures statistics.  The goal is to do recursive descent until all nodes are resolved by appending a query to negate visited root nodes, with a cut-off before tree-cache fills up.  


declare namespace a = "a:roots";
declare variable $bcount := 0;
declare variable $MAX-ITERATIONS := 200;
declare variable $base-constraint := cts:and-query(());

declare function a:get-root-elements($bdone,$qnames,$results) {
  xdmp:set($bcount,$bcount + 1),
  if($bdone or $bcount > $MAX-ITERATIONS) then (
    xdmp:log(fn:concat("Starting Root Frequency:",xdmp:elapsed-time()),"debug"),
    for $k in $results
    let $parts := fn:analyze-string($k,"\{(.*)\}(.*)")
    let $ns := fn:string($parts/*:match/*:group[@nr eq 1])
    let $local-name := fn:string($parts/*:match/*:group[@nr eq 2])
    let $frequency  :=
        if($ns eq "") 
        then xdmp:eval(
            fn:concat("declare variable $base-constraint external;xdmp:estimate(cts:search(/",$local-name,",($base-constraint),('unfiltered')))"),
            (fn:QName("","base-constraint"),$base-constraint)        
            ) 
        else xdmp:eval(
            fn:concat("declare namespace _1  = """,$ns,""";
                      declare variable $base-constraint external;
                      xdmp:estimate(cts:search(/_1:",$local-name,",$base-constraint))"),
            (fn:QName("","base-constraint"),$base-constraint)
            )
    where $frequency > 0
    return ((:
      <root-element>
        <type>element</type>
        <database>{xdmp:database()}</database>
        <id>{xdmp:md5($k)}</id>
        <namespace>{$ns}</namespace>
        <localname>{$local-name}</localname>
        <frequency>{$frequency}</frequency>
      </root-element>
      :)
      xdmp:key-from-QName(fn:QName($ns,$local-name))
      ),
    xdmp:log(fn:concat("Finished Root Frequency:",xdmp:elapsed-time()),"debug")
)
else 
    let $constraint := 
      if(fn:exists($qnames))  
      then for $qn in $qnames return cts:not-query(cts:element-query($qn,cts:and-query(())))
      else ()
    let $rnode :=      
        if(fn:not(fn:empty($qnames))) 
        then fn:subsequence(cts:search(/element(),cts:and-query(($base-constraint,$constraint)),"unfiltered"),1,1)
        else fn:subsequence(cts:search(/element(),cts:and-query(()),"unfiltered"),1,1)
    return
        if($rnode instance of element() and fn:not(fn:node-name($rnode) = $qnames)) 
        then
            let $qname := fn:node-name($rnode)
            let $key := fn:concat("{",fn:namespace-uri($rnode),"}",fn:local-name($rnode))
            return (
                a:get-root-elements(fn:false(),($qnames,$qname),($key,$results))
            )
        else if(fn:node-name($rnode) = $qnames) then 
            a:get-root-elements(fn:true(),$qnames,$results)
        else if(fn:empty($rnode)) then
            a:get-root-elements(fn:true(),$qnames,$results)
        else 
          a:get-root-elements(fn:false(),$qnames,$results)
};
a:get-root-elements(fn:false(),(),())


------------------------------

Message: 3
Date: Mon, 30 Mar 2015 14:54:52 +0000 (UTC)
From: Paul M <pjmaip at yahoo.com>
Subject: [MarkLogic Dev General] rest search using range index
To: "general at developer.marklogic.com"
    <general at developer.marklogic.com>
Message-ID:
    <563963243.1238762.1427727292204.JavaMail.yahoo at mail.yahoo.com>
Content-Type: text/plain; charset="utf-8"

This search works as expected when entered in GUI and http server:

? localhost:xxx/?q=kwd%3AAluminium

this works as well using REST:
? localhost:xxx/v1/search?q=Aluminum

this does not work using REST:
localhost:xxx/v1/keyvalue?element=kwd&value=Aluminum
Documentation is a bit unclear. Is the last version supposed to work? If not, why not?
-Paul

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