Hi Manish
You should use the RegisteredSolrServerTracker [1] for that
If you have the dbpedia index available on the ManagesSolrServer you
can simple use
RegisteredSolrServerTracker indexTracker =
new RegisteredSolrServerTracker(bc, IndexReference.parse("dbpedia"));
indexTracker.open();
in the activate method of your OSGI component (or the BundleActivator
if you like)
best
Rupert
[1]
http://stanbol.apache.org/docs/trunk/utils/commons-solr#tracking-solr-indexes
On Mon, May 5, 2014 at 11:19 AM, Manish Aggarwal <[email protected]> wrote:
> Hi,
>
> I have created a customized java module (see code extract below) which
> initialized the SolrYard and query dbpedia index file. It uses stanbol
> 0.12.0 packages. Everything works fine.
> Now, I am trying to include this custom module in an OSGi environment
> but getting the following error:
>
> Caused by: org.apache.solr.common.SolrException: Error instantiating
> shardHandlerFactory class
> [org.apache.solr.handler.component.HttpShardHandlerFactory]: Error
> loading class 'org.apache.solr.handler.component.HttpShardHandlerFactory'
> at
> org.apache.solr.handler.component.ShardHandlerFactory.newInstance(ShardHandlerFactory.java:54)
> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:204)
> at
> com.abc.g11n.queryDbpedia.QueryDbpediaDirect.initYardNew(QueryDbpediaDirect.java:146)
> at
> com.abc.g11n.queryDbpedia.QueryDbpediaDirect.init(QueryDbpediaDirect.java:119)
> at
> com.adc.sharedcloud.worker.manthanta.DefaultCommand.<clinit>(DefaultCommand.java:59)
> ... 103 more
>
> I was reading about StandaloneEmbeddedSolrServerProvider and I found
> out that it is intended to be used outside of an OSGI environment as
> specified at
> (http://www.go5th.com/jdocs/stanbol/commons/solr/managed/org/apache/stanbol/commons/solr/managed/standalone/StandaloneEmbeddedSolrServerProvider.html)
>
> Could you please help me on how to initialize a SolrYard (to query
> dbpedia index file) in an OSGi environment?
>
>
> (Code that I am currently using to initialize the SolrYard)
>
> private static Yard yard;
> private static final String DBP_RES_ID = "Dbp_Res_ID";
> private static final String YARD_ID = "DbpYard";
> private static final String SOLR_CORE_NAME = "dbpedia";
> private static StandaloneEmbeddedSolrServerProvider solrServerProvider;
> private static SolrServer server;
> public static boolean dbpediaInitialised = false;
>
> private static void initYard(String solrServerDir) throws
> YardException, IOException {
> SolrYardConfig config = new SolrYardConfig(YARD_ID, SOLR_CORE_NAME);
> config.setName("Dbpedia Solr Yard");
> config.setDescription("The Solr Yard for querying dbpedia");
> config.setAllowInitialisation(false);
> System.setProperty(ManagedSolrServer.MANAGED_SOLR_DIR_PROPERTY,
> solrServerDir);
> IndexReference solrServerRef =
> IndexReference.parse(config.getSolrServerLocation());
> solrServerProvider =
> StandaloneEmbeddedSolrServerProvider.getInstance();
> server = solrServerProvider.getSolrServer(solrServerRef,
> config.isAllowInitialisation() ?
> config.getIndexConfigurationName() : null);
> //Optional support for the nsPrefix service
> final NamespacePrefixService nsPrefixService;
> ServiceLoader<NamespacePrefixService> spsl =
> ServiceLoader.load(NamespacePrefixService.class);
> Iterator<NamespacePrefixService> it = spsl.iterator();
> if(it.hasNext()){
> nsPrefixService = it.next();
> } else {
> nsPrefixService = null;
> }
> yard = new SolrYard(server, config, nsPrefixService);
> }
>
>
> Regards,
> Manish
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