solrconfig.xml

<!-- CLICK THROUGH FILTER (CTF) PLUGIN -->

<!-- Location of CTF jar file -->

<lib dir="." regex="clickthroughfilter-\d.*\.jar" />

<!-- Add {!ctf v=$qq} to q, and "dereference" your basic query to qq parameter.
   Set up defaults in ctf <queryParser/> section below.
   Override default parameters by setting them as localparams in your query
	e.g. {!ctf cn=5 cb=3 extend=false} or ...&cn=5&cb=3&extend=false on url
   See README.MD for details
-->

<queryParser name="ctf" class="com.ctf.ctfQParser">
   <!-- ctf settings -->
	<str name="solr_host_url">http://localhost:8983/solr</str>
	<str name="document_core_to_query">documents</str>
	<str name="clicks_core_to_query">clicks</str>
   <!-- ctf mappings -->
	<str name="document_ID_field_name">docID</str>
	<str name="click_fromID_field_name">fromDocID</str>
	<str name="click_null_fromID_value">-1</str>
	<str name="click_toID_field_name">toDocID</str>
	<str name="click_time_stamp_field_name">time_stamp</str>
   <!-- ctf parameter defaults -->
	<str name="base">matches</str>
	<str name="restrict">false</str>
	<str name="reorder">true</str>
	<str name="extend">true</str>
	<str name="only2y">false</str>
	<str name="cn">10</str>
	<str name="cd">10</str>
	<str name="cp">20</str>
	<str name="cb">2</str>
	<str name="cx">2</str>
	<str name="ctp">*</str>
	<str name="cts">*</str>
	<str name="cg">0</str>
	<str name="cs">0.5</str>
	<str name="cf">*</str>
	<str name="cy">0.5</str>
	<str name="cz">NOW</str>
</queryParser>

<!-- For tuning, query debug, improvement metrics etc, 
	use "/ctf" request handler & insert {!ctf [+ any parameter=value pairs you like]} in your query
	for testing, inserting {!cache=false} at start of q can be helpful 
	check debug to ensure your query is being parsed & scored properly -->

<searchComponent name="ctfOutput" class="com.ctf.ctfOutput"/>
<requestHandler name="/ctf" class="solr.SearchHandler">
	<lst name="defaults">
		<str name="echoParams">all</str>
		<str name="fl">id name score</str> //score is required for metrics to work
		<str name="sort">score desc</str>
		<str name="improvements">on</str>  //required for metrics to work
	</lst>
    <arr name="last-components">
      <str>ctfOutput</str>
    </arr>
</requestHandler>

<!-- END OF CLICK THROUGH FILTER PLUGIN -->