Adding a DocSet as a filter from a custom search component

[Marc Sturlese <ma...@gmail.com>]

Hey there,
I'm wondering if there's a more clean way to to this:
I've written a SearchComponent, that runs as last-component. In the prepare
method I build a DocSet (SortedIntDocSet) based on if some values of the
fieldCache of a determined field accomplish some rules (if rules are
accomplished, set the docId to the DocSet). I want to use this DocSet as a
filter for the main query. Right now I'm cloning the existent filters of the
request (if they exist at all) to a filter list and add mine there. Then add
the list to the request Context:

      ... build myDocSet
      DocSet ds =
rb.req.getSearcher().getDocSet(filtersCloned).andNot(myDocSet);
      rb.setFilters(null);   //you'll see why
      rb.req.getContext().put("newFilters",ds);

Then to apply the DocSet containing all filters, in the QueryCommand process
method do:

    SolrIndexSearcher.QueryCommand cmd = rb.getQueryCommand();
    if(rb.req.getContext().containsKey("newFilters")){
      cmd.setFilter((DocSet)rb.req.getContext().get("newFilters"));
    }
As I've set rb.setFilters(null) I won't have exceptions and it will work.
This looks definitely nasty, I would like not to touch the QueryCommand. Any
suggestions?




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