Perhaps back up and see if we can do this a simpler way than a request
handler...
What is the query structure you are trying to generate?
I have two dismax queries defined in a solrconfig. Something like
<requestHandler name="q1" class="solr.DisMaxRequestHandler" >
...
<str name="qf">
raw^4 name^1
</str>
</requestHandler>
<requestHandler name="q2" class="solr.DisMaxRequestHandler" >
...
<str name="qf">
tags^3 type^2
</str>
</requestHandler>
They work fine on their own, and we often use &bf=sortable^... to
change the ordering. But we want to merge them. Result IDs that show
up in both need to go higher and with a url param we need to weight
between the two. So I am making a /combined requesthandler that takes
the query, the weights between the two and the value of the
bf=sortable boost.
My handler: /combined?q=kittens&q1=0.5&q2=0.8&bfboost=2.0
Would query ?qt=q1&q=kittens&bf=2&fl=id, then ?
qt=q2&q=kittens&bf=2&fl=id. The request handler would return the
results of a term query with the (q1 returned IDs)^0.5 (q2 returned
IDs)^0.8.
