XSL scripting

[Lance Norskog]

 This started out in the num-docs thread, but deserves its own. And a wiki
page.

There is a more complex and general way to get the number of documents in
the index. I run a query against solr and postprocess the output with an XSL
script.

Install this xsl script as home/conf/xslt/numfound.xsl.

<xsl:stylesheet version="1.0"
        xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
        <xsl:output method="text"/>
        <xsl:template match="/">
                <xsl:value-of select="response/result/@numFound" />
                <xsl:text>&#x0A;</xsl:text>
        </xsl:template>
</xsl:stylesheet>

Make sure 'curl' is installed, and add numfound.sh, a unix shell script.

SHARD=localhost:8080/solr
QUERY="$1"

LINK="http://$SHARD/select?indent=on&version=2.2&q=$QUERY&start=0&rows=0
&fl=*&wt=xslt&tr=numfound.xsl"
curl --silent "$LINK" -H "Content-Type:text" -X GET

Run it as 
        sh numfound.sh "*:*"
 
How to install the XSLT script is to be found on the Wiki.
Star-colon-star is magic for 'all records'.
 

XSL is appalling garbage.

Cheers!