Re: Custom Request handler Error:

[noor]

Yes,

Nullpointer Exception. on the line

SolrCore coreToRequest = coreContainer.getCore("core2");


Noble Paul ??????? ?????? wrote:

is there any error on the console?

On Fri, Jun 12, 2009 at 4:26 PM, Noor<noo...@opentechindia.com> wrote:

hi,
 i am new to apache solr.
I need to create a custom request handler class. So i create a new one and
changed the solr-config.xml file as,
 <requestHandler name="/select" class="solr.my.MyCustomHandler">
      <lst name="defaults">
          <str name="echoParams">explicit</str>
          <str name="q">tandem</str>
          <str name="debugQuery">true</str>
      </lst>
  </requestHandler>

And in my java class, the code is,

public class MyCustomHandler extends RequestHandlerBase{
 public CoreContainer coreContainer;
 public void handleRequestBody(SolrQueryRequest request, SolrQueryResponse
response) throws Exception {
      SolrCore coreToRequest = coreContainer.getCore("core2");
      ModifiableSolrParams params = new ModifiableSolrParams();
      params.set("echoParams", "explicit");
      params.set("q", "text");
      params.set("debugQuery", "true");
request = new LocalSolrQueryRequest(coreToRequest, params);
//             SolrRequestHandler reqHandler =
coreToRequest.getRequestHandler("/select");
      coreToRequest.execute(reqHandler, request, response);
      coreToRequest.close();
      request.close();
  }
 // the abstract methods - getDescription(), getSourceId(), getSource(),
getVersion() are //overrided... but these methods doesn't have any
implementations.
}


But, if i search any text in my webapp from browser, gots the HTTP 500
error.
i dont know how SolrContainer is intialized....
Pls anyone give me the solution...

thanks and regards,
Mohamed