Creating a Custom Sort

[Lionel Hutz]

The instructions on this page give a good overview of how to create a new search query, but I was wondering if I could get some instructions on how to create a new SearchSort.

http://confluence.atlassian.com/display/CONFDEV/Extending+the+V2+search+API

I created the sort but need come kind of mapper that implements the sort. My query works just fine when used with the PredefinedSearchBuilder, but when I try to add the sort to SearchQueryParameters, I get this in the logs:

"A lucene mapper could not be found to map the specified search"

[Lionel Hutz · Accepted solution]

Ok I figured out what to do. Basically I just needed to write my own extractor that adds the fields un-tokenized to the index and then have my sort reference the un-tokenized fields. This is exactly what the page title does and now I can make Lucene do all the work of searching and sorting.

Basically "handles" maps your SearchSort the the appropriate mapper(I just used the case insensitive one) while sortfield allows you to specify a different field to actually sort on (the un-tokenized one in my case).

The discussion here helped:

https://jira.atlassian.com/browse/CONF-5322

[Lionel Hutz]

Ok one more tidbit. I think part of the issue is the metadata is tokenized. Simple metadata (such as AAA, BBB, CCC, DDD, etc) seem to sort correctly but throwing spaces and special characters into the mix breaks the sort for those items.

According to this page:

http://confluence.atlassian.com/display/DOC/Confluence+Search+Fields

the page title is also tokenized, but it can be sorted anyway. How can I apply this to metadata?

[Lionel Hutz]

Ok I was able to find LuceneSortMapper burried here:

http://confluence.atlassian.com/display/CONFDEV/Confluence+Plugin+Module+Types

and lucene-sort-mapper (which takes an additional "sortField" param) in a random svn commit that was picked up by google, but this doesn't seem to work for metadata (specifically scaffolding fields). Is it not possible to sort this way?