[ http://issues.apache.org/jira/browse/SOLR-24?page=all ]
Mike Klaas updated SOLR-24:
---------------------------
Attachment: highlight_v5.patch
(hopefully) complete patch.
- removed "id=" from document highlighting entries
- ensured the multi-value snippets do not get concatenated
- in StandardRequestHandler and DisMaxHandler, the score flag is set iff it is
in the responsefields parameter
> Add Highlighting to standard request handler
> --------------------------------------------
>
> Key: SOLR-24
> URL: http://issues.apache.org/jira/browse/SOLR-24
> Project: Solr
> Type: New Feature
> Components: search
> Reporter: Mike Klaas
> Attachments: highlight_patch_v1.diff, highlight_patch_v2.diff,
> highlight_patch_v3.diff, highlight_patch_v4.diff, highlight_v5.patch
>
> This patch adds highlighting functionality to solr request handlers it also
> refactors StandardRequestHandler to use the common functionality provided in
> SolrPluginUtils. I'd have preferred to do two separate patches, but creating
> two mutually-dependent patches on a repo without being able to commit a
> revision was daunting.
> -----------------------------------
> Refactoring StandardRequestHandler:
> 1. Moved solr.util.CommonParams to its own class. Removed DisMax-specific
> parameters, and placed in a subclass.
> 2. StandardRequestHandler uses CommonParams to store config-time parameter
> values (new feature)
> 3. StandardRequestHandler uses SolrPluginUtils methods for duplicate
> functionality
> 4. Some of said SPU methods have grown a "params" parameter to enable them to
> use default values. (Note: instead of passing this around, something like a
> RequestHelper class which carries the SolrRequest and Param values would be
> useful. This class could house the utility methods that require Request
> parameters).
> 5. SolrPluginUtils.getParam() only uses the default parameter if it is null,
> not blank.
> --------------------------------------
> Highlighting:
> 1. Highlighting is controlled by three request parameters:
> highlight: list of fields to highlight, or highlight the default field if
> at all present
> maxSnippets: maximum number of snippets to return for each field
> highlightFormatterClass: 'solr.<classname>' or full package path of
> highlight.Formatter subclass to use in highlighting.
> 2. Default formatter is to use <em> tags. There are issues with this
> approach, but are mitigated with the ability to specify a custom Formatter.
> Definately should consider alternatives (a custom xml approach to denote
> highlit regions will require some Highlighter package hackery).
> 3. Document summaries are returned as a separate element under <response>
> format is still up for discussion.
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