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From "Adam Brown (JIRA)" <>
Subject [jira] Updated: (SOLR-1944) Add HttpServletRequest and HttpServletResponse to SolrQueryRequest and SolrQueryResponse
Date Wed, 09 Jun 2010 16:36:14 GMT


Adam Brown updated SOLR-1944:

    Attachment: HttpServletRequest.patch

Here is a patch that does what I am proposing.

> Add HttpServletRequest and HttpServletResponse to SolrQueryRequest and SolrQueryResponse
> ----------------------------------------------------------------------------------------
>                 Key: SOLR-1944
>                 URL:
>             Project: Solr
>          Issue Type: New Feature
>    Affects Versions: 1.4
>            Reporter: Adam Brown
>            Priority: Minor
>         Attachments: HttpServletRequest.patch
> I am implementing several custom request handlers and response writers. All of them need
access to HTTP headers and cookies. In scanning google for mailing lists and forums it seems
others have had this same need.
> I worked around it by creating a custom dispatch filter which extends SolrDispatchFilter
and does the following:
> {code}
>   public static final String CONTEXT_SERVLET_REQUEST = "servletRequest";
>   public static final String CONTEXT_SERVLET_RESPONSE = "servletResponse";
>   @Override
>   public void doFilter(ServletRequest request, ServletResponse response, FilterChain
chain) throws IOException, ServletException {
>     request.setAttribute("response", response);
>     super.doFilter(request, response, chain);
>   }
>   @Override
>   protected void execute(HttpServletRequest servletRequest, SolrRequestHandler handler,
SolrQueryRequest solrRequest, SolrQueryResponse solrResponse) {
>     Object servletResponse = servletRequest.getAttribute("response");
>     servletRequest.removeAttribute("response");
>     solrRequest.getContext().put(CONTEXT_SERVLET_REQUEST, servletRequest);
>     solrRequest.getContext().put(CONTEXT_SERVLET_RESPONSE, servletResponse);
>     super.execute(servletRequest, handler, solrRequest, solrResponse);
>   }
> {code}
> I then had to write a step in my deployment script to crack open the solr war file, sed
the web.xml and replace the SolrDispatchFilter with my own. Others have worked around the
issue in the same way. This seems like an ugly workaround and would be simpler and cleaner
if the SolrQueryRequest and SolrQueryResponse just included a reference to their http counterparts.

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