Re: SolrJ Collapsable Query Fails

[Ahmet Arslan]

> Thanks for the information. However, I still have one more
> problem. I am
> iterating over the values of the NamedList. I have 2
> values, one
> being 'responseHeader' and the other one being 'grouped'. I
> would like to
> access some information stored within the grouped section,
> which has
> data structured like so:
> 
> grouped={attr_directory={matches=4,groups=[{groupValue=C:\Users\rvassallo\Desktop\Index,doclist={numFound=2,start=0,docs=[SolrDocument[{attr_meta=[Author,
> kcook, Last-Modified, 2011-03-02T14:14:18Z...
> 
> With the 'get("group")' method I am only able to access the
> entire
> '{attr_directory={matches=4,g...' section. Is there some
> functionality which
> allows me to get other data? Something like this for
> instance:
> 'get("group.matches")' or maybe
> 'get(group.attr_directory.matches)' (which
> will yield the value of 4), or do I need to process the
> String that the
> 'get("...")' returns to get what I need?
> 
> Thanks :)

I think accessing the relevant portion in a NamedList is troublesome. I suggest 
you to look at existing codes in solrJ. e.g. How facet info is extracted from 
NamedList.

I am sending you the piece of code that I used to access grouped info.
Hopefully It can give you some idea.

 NamedList signature = (NamedList) groupedInfo.get("attr_directory");

    if (signature == null) return new ArrayList(0);

    matches.append(signature.get("matches"));


    @SuppressWarnings("unchecked")
    ArrayList<NamedList> groups = (ArrayList<NamedList>) 
signature.get("groups");

    ArrayList<> resultItems = new ArrayList<>(groups.size());

    StringBuilder builder = new StringBuilder();


    for (NamedList res : groups) {

      ResultItem resultItem = null;

      String hash = null;
      Integer found = null;
      for (int i = 0; i < res.size(); i++) {
        String n = res.getName(i);

        Object o = res.getVal(i);

        if ("groupValue".equals(n)) {
          hash = (String) o;
        } else if ("doclist".equals(n)) {
          DocList docList = (DocList) o;
          found = docList.matches();

          try {
            final SolrDocumentList list = 
SolrPluginUtils.docListToSolrDocumentList(docList, searcher, fields, null);
            builder.setLength(0);

            if (list.size() > 0)
              resultItem = solrDocumentToResultItem(list.get(0), debug);

            for (final SolrDocument document : list)
              builder.append(document.getFieldValue("id")).append(',');


          } catch (final IOException e) {
            LOG.error("Unexpected Error", e);
          }
        }


      }

      if (found != null && found > 1 && resultItem != null) {
        resultItem.setHash(hash);
        resultItem.setFound(found);
        builder.setLength(builder.length() - 1);
        resultItem.setId(builder.toString());
      }

      // debug


      resultItems.add(resultItem);
    }

    return resultItems;