Hi,
Unfortunately, the latest patch on that issue doesn't work yet (it
should compile) as I am updating it to use Carrot2 3.0. I am in the
process of trying to get it working. If you are happy with using
Carrot 2.x, then the previous patch on there should work.
Once it does work, there should be no need to write your own core
stuff. It will be a SearchComponent just like any other component and
the clustering results will come back in the response.
-Grant
On Mar 9, 2009, at 2:30 AM, AmardeepSingh wrote:
Hi,
I am facing a issue while using SOLR-769 patch for search
clustering. I am
following this link for configuration
http://wiki.apache.org/solr/ClusteringComponent . Here is what I
have done
for configuring this patch
1) Applied the patch to my Solr source code and got it compiled. So
my new
Solr source code has two more packages
i) org.apache.solr.handler.clustering
ii) org.apache.solr.handler.clustering.carrot2
2) Also I have carrot2-core jar ,apache-solr-solrj jar in my
classpath.
3) Now I am initializing a solr core this way
CoreContainer cores=new CoreContainer(instanceDir,configDir);
SolrCore core=cores.getCore(“core0”);
SolrServer solrServer=new EmbeddedSolrServer(cores, "core0");
4) After this I am indexing and querying a indexed document .
5) Now for the clustering part my code looks like this..
MatchAllDocsQuery matchedQuery = new MatchAllDocsQuery();
SolrIndexSearcher searcher=core.getSearcher().get();
DocList docList=searcher.getDocList(matchedQuery, (Query)
null, new
Sort(), 0, 10);
ClusteringComponent comp = (ClusteringComponent)
core.getSearchComponent("clustering");
CarrotClusteringEngine engine = (CarrotClusteringEngine)
comp.getSearchClusteringEngines().get("default");
NamedList results= engine.cluster(matchedQuery, docList,
solrParams);
After I run my code I am able to index and search properly but when
the last
three lineos code in step 5 are executed I am getting the following
exception:
java.lang.IllegalStateException: Controller not initialized.
at
org
.carrot2
.core.CachingController.processInternal(CachingController.java:264)
at
org.carrot2.core.CachingController.process(CachingController.java:251)
at
org
.apache
.solr
.handler
.clustering
.carrot2.CarrotClusteringEngine.cluster(CarrotClusteringEngine.java:
112)
at com.cognizant.solr_I1.AddIndex.readSolrIndex(AddIndex.java:
193)
at com.cognizant.solr_I1.AddIndex.main(AddIndex.java:231)
Exception in thread "main" java.lang.RuntimeException:
java.lang.IllegalStateException: Controller not initialized.
at
org
.apache
.solr
.handler
.clustering
.carrot2.CarrotClusteringEngine.cluster(CarrotClusteringEngine.java:
124)
at com.cognizant.solr_I1.AddIndex.readSolrIndex(AddIndex.java:
193)
at com.cognizant.solr_I1.AddIndex.main(AddIndex.java:231)
Caused by: java.lang.IllegalStateException: Controller not
initialized.
at
org
.carrot2
.core.CachingController.processInternal(CachingController.java:264)
at
org.carrot2.core.CachingController.process(CachingController.java:251)
at
org
.apache
.solr
.handler
.clustering
.carrot2.CarrotClusteringEngine.cluster(CarrotClusteringEngine.java:
112)
... 2 more
Please help me out with this issue . Thanks in advance..
--
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