Unable to add mahout classifier

[lovely kasi]

Hi,

I made few changes to the solrconfig.xml, created a jar file,added it to
the lib folder of the solr and tried to start it.

THe changes in the solrconfig.xml are

<updateRequestProcessorChain name="mahoutclassifier" default="true">
      <processor class="com.mahout.solr.classifier.CategorizeDocumentFac">
        <str name="inputField">LEAD_NOTES</str>
        <str name="outputField">category</str>
        <str name="defaultCategory">Others</str>
        <str name="model">naiveBayesModel</str>
      </processor>
      <processor class="solr.RunUpdateProcessorFactory"/>
      <processor class="solr.LogUpdateProcessorFactory"/>
    </updateRequestProcessorChain>

<requestHandler name="/update/csv" class="solr.CSVRequestHandler">
        <lst name="defaults">
         <str name="stream.contentType">application/csv</str>
          <str name="update.processor">mahoutclassifier</str>
       </lst>
  </requestHandler>

I attahced the class file.

But i get the following error.

org.apache.solr.common.SolrException: Error Instantiating
UpdateRequestProcessorFactory,
com.mahout.solr.classifier.CategorizeDocumentFactory failed to instantiate
org.apache.solr.update.processor.UpdateRequestProcessorFactory
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:834)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:625)
        at
org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:522)
        at org.apache.solr.core.CoreContainer.create(CoreContainer.java:557)
        at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:247)
        at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:239)
        at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown
Source)
        at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
Source)
        at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.solr.common.SolrException: Error Instantiating
UpdateRequestProcessorFactory,
com.mahout.solr.classifier.CategorizeDocumentFactory failed to instantiate
org.apache.solr.update.processor.UpdateRequestProcessorFactory
        at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:547)
        at
org.apache.solr.core.SolrCore.createInitInstance(SolrCore.java:582)
        at org.apache.solr.core.SolrCore.initPlugins(SolrCore.java:2144)
        at
org.apache.solr.update.processor.UpdateRequestProcessorChain.init(UpdateRequestProcessorChain.java:119)
        at
org.apache.solr.core.SolrCore.createInitInstance(SolrCore.java:584)
        at org.apache.solr.core.SolrCore.initPlugins(SolrCore.java:2128)
        at org.apache.solr.core.SolrCore.initPlugins(SolrCore.java:2122)
        at
org.apache.solr.core.SolrCore.loadUpdateProcessorChains(SolrCore.java:906)
        at org.apache.solr.core.SolrCore.<init>(SolrCore.java:766)
        ... 13 more
Caused by: java.lang.ClassCastException: class
com.mahout.solr.classifier.CategorizeDocumentFactory
        at java.lang.Class.asSubclass(Unknown Source)
        at
org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:433)
        at
org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:381)
        at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:526)
        ... 21 more


Thanks,
Subbu