what is the package of LiveCoresHandler ?
I guess the requestHandler name should be name="/livecores"
On Tue, Aug 4, 2009 at 5:04 PM, James Brady<james.colin.br...@gmail.com> wrote:
> Solr version: 1.3.0 694707
>
> solrconfig.xml:
> <requestHandler name="livecores" class="LiveCoresHandler" />
>
> public class LiveCoresHandler extends RequestHandlerBase {
> public void init(NamedList args) { }
> public String getDescription() { return ""; }
> public String getSource() { return ""; }
> public String getSourceId() { return ""; }
> public NamedList getStatistics() { return new NamedList(); }
> public String getVersion() { return ""; }
>
> public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse
> rsp) {
> Collection<String> names =
> req.getCore().getCoreDescriptor().getCoreContainer().getCoreNames();
> rsp.add("cores", names);
> // if the cores are dynamic, you prob don't want to cache
> rsp.setHttpCaching(false);
> }
> }
>
> 2009/8/4 Avlesh Singh <avl...@gmail.com>
>
>> >
>> > I'm sure I have the class name right - changing it to something patently
>> > incorrect results in the expected "org.apache.solr.common.SolrException:
>> > Error loading class ...", rather thanthe ClassCastException.
>> >
>> You are right about that, James.
>>
>> Which Solr version are you using?
>> Can you please paste the relevant pieces in your solrconfig.xml and the
>> request handler class you have created?
>>
>> Cheers
>> Avlesh
>>
>> On Mon, Aug 3, 2009 at 10:51 PM, James Brady <james.colin.br...@gmail.com
>> >wrote:
>>
>> > Hi,
>> > Thanks for your suggestions!
>> >
>> > I'm sure I have the class name right - changing it to something patently
>> > incorrect results in the expected
>> > "org.apache.solr.common.SolrException: Error loading class ...", rather
>> > than
>> > the ClassCastException.
>> >
>> > I did have some problems getting my class on the app server's classpath.
>> > I'm
>> > running with solr.home set to "multicore", but creating a multicore/lib
>> > directory and putting my request handler class in there resulted in
>> "Error
>> > loading class" errors.
>> >
>> > I found that setting jetty.class.path to include multicore/lib (and also
>> > explicitly point at Solr's core and common JARs) fixed the "Error loading
>> > class" errors, leaving these ClassCastExceptions...
>> >
>> > 2009/8/3 Avlesh Singh <avl...@gmail.com>
>> >
>> > > Can you cross check the class attribute for your handler in
>> > solrconfig.xml?
>> > > My guess is that it is specified as "solr.LiveCoresHandler". It should
>> be
>> > > fully qualified class name - com.foo.path.to.LiveCoresHandler instead.
>> > >
>> > > Moreover, I am damn sure that you did not forget to drop your jar into
>> > > solr.home/lib. Checking once again might not be a bad idea :)
>> > >
>> > > Cheers
>> > > Avlesh
>> > >
>> > > On Mon, Aug 3, 2009 at 9:11 PM, James Brady <
>> james.colin.br...@gmail.com
>> > > >wrote:
>> > >
>> > > > Hi,
>> > > > I'm creating a custom request handler to return a list of live cores
>> in
>> > > > Solr.
>> > > >
>> > > > On startup, I get this exception for each core:
>> > > >
>> > > > Jul 31, 2009 5:20:39 PM org.apache.solr.common. SolrException log
>> > > > SEVERE: java.lang.ClassCastException: LiveCoresHandler
>> > > > at
>> > > >
>> org.apache.solr.core.RequestHandlers$1.create(RequestHandlers.java:152)
>> > > > at
>> > > >
>> org.apache.solr.core.RequestHandlers$1.create(RequestHandlers.java:161)
>> > > > at
>> > > >
>> > > >
>> > >
>> >
>> org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:140)
>> > > > at
>> > > >
>> > > >
>> > >
>> >
>> org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:169)
>> > > > at org.apache.solr.core.SolrCore.<init>(SolrCore.java:444)
>> > > >
>> > > > I've tried a few variations on the class definition, including
>> > extending
>> > > > RequestHandlerBase (as suggested here:
>> > > >
>> > > >
>> > >
>> >
>> http://wiki.apache.org/solr/SolrRequestHandler#head-1de7365d7ecf2eac079c5f8b92ee9af712ed75c2
>> > > > )
>> > > > and implementing SolrRequestHandler directly.
>> > > >
>> > > > I'm sure that the Solr libraries I built against and those I'm
>> running
>> > on
>> > > > are the same version too, as I unzipped the Solr war file and copies
>> > the
>> > > > relevant jars out of there to build against.
>> > > >
>> > > > Any ideas on what could be causing the ClassCastException? I've
>> > attached
>> > > a
>> > > > debugger to the running Solr process but it didn't shed any light on
>> > the
>> > > > issue...
>> > > >
>> > > > Thanks!
>> > > > James
>> > > >
>> > >
>> >
>> >
>> >
>> > --
>> > http://twitter.com/goodgravy
>> > 512 300 4210
>> > http://webmynd.com/
>> > Sent from Bury, United Kingdom
>> >
>>
>
>
>
> --
> http://twitter.com/goodgravy
> 512 300 4210
> http://webmynd.com/
> Sent from Bury, United Kingdom
>
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