Sounds like a class loader issue. Try adding your jar to $SOLR_HOME/lib
instead of tomcat lib.
Also, upgrade to Solr 4.x, 3.6 is ancient! :)
On Sat, Sep 20, 2014 at 1:13 AM, Allistair C <allist...@gmail.com> wrote:
> Hi all,
>
> I’m in a bit of a cul de sac with an issue, hope you can help.
>
> I am creating a custom UpdateRequestProcessor. The Solr documentation
> details that I need to write a factory class subclassing
> UpdateRequestProcessorFactory and this should return an instance of my
> class that subclasses UpdateRequestProcessor.
>
> I have done this, and I have created a JAR.
>
> I have deployed the JAR into Tomcat’s lib folder where Solr is running.
>
> I have modified the solrconfig to include my class correctly.
>
> On startup Solr finds my class but does not believe it conforms to being a
> UpdateRequestProcessorFactory.
>
> SEVERE: org.apache.solr.common.SolrException: Error Instantiating
> UpdateRequestProcessorFactory,
> com.acme.solr.update.processor.URLRewriteUpdateRequestProcessorFactory is
> not a org.apache.solr.update.processor.UpdateRequestProcessorFactory
> at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:421)
>
> Things I have tried:
>
> - Ensured that I am compiling my JAR with the exact JDK that is running
> Solr.
> - Downloaded Solr 3.6.2 and copied one of the Solr built-in processors,
> renamed it, compiled it and tried to use it - SAME issue.
> - Created a test that uses the same code as the Solr code that is failing
> (namely, isAssignableFrom):
>
> Class clazz =
> Class.forName("com.acme.solr.update.processor.URLRewriteUpdateRequestProcessorFactory");
> boolean isA =
> UpdateRequestProcessorFactory.class.isAssignableFrom(clazz);
> System.out.println(isA);
>
> Print’s “true” - i.e. it’s perfectly OK!
>
> I include my simple processor here:
>
> package com.acme.solr.update.processor;
>
> public class URLRewriteUpdateRequestProcessorFactory extends
> UpdateRequestProcessorFactory
> {
> @Override
> public UpdateRequestProcessor getInstance(SolrQueryRequest req,
> SolrQueryResponse rsp, UpdateRequestProcessor next) {
> return new URLRewriteProcessor(next);
> }
> }
>
> class URLRewriteProcessor extends UpdateRequestProcessor
> {
> public URLRewriteProcessor(UpdateRequestProcessor next)
> {
> super(next);
> }
>
> @Override
> public void processAdd(AddUpdateCommand cmd) throws IOException
> {
> SolrInputDocument doc = cmd.getSolrInputDocument();
> doc.setField("foo", "bar");
>
> super.processAdd(cmd);
> }
> }
>
> At this point I am at a loss and would appreciate any assistance or ideas
> to try.
>
> Cheers
--
Regards,
Shalin Shekhar Mangar.
