Hi
I am using apache solr 3.3 on windows 7 with JDK 1.6.
I am facing very strange problem. My code makes a query to the solr server in
Java, the code is pasted below:
public QueryResponse getSearchResponse(String query, String url,
String...facets){
try{
SolrQuery query1 = new SolrQuery();
query1.setQuery(query);
if(facets != null){
if(facets.length > 0){
query1.setFacet(true);
query1.setRows(0);
for(int i=0; i< facets.length; i++){
query1.addFacetField(facets[i]);
}
}
}
log.info("The URL is " + url);
query1.setFacetMinCount(1);
query1.setRows(45);
query1.setIncludeScore(false);
log.info("The query is " + query1.getQuery());
SolrServer solrServer = new CommonsHttpSolrServer(url);
QueryResponse queryResponse = solrServer.query(query1);
if(queryResponse == null){
queryResponse = new QueryResponse();
log.info("The query response is null");
}
solrServer.commit();
return queryResponse;
}catch(Exception ex){
log.error("Error fetching data from Solr -!! " + ex.toString());
ex.printStackTrace();
return new QueryResponse();
}
}
At the line, QueryResponse queryResponse = solrServer.query(query1); Class Cast
Exception is thrown and no data is fetched. I suspect this has something to do
with Solrj client distribution.
I have pasted the exception as well, where Solr war is reporting that there
were 25 records hit, but the client log from my code reports class cast
exception. The exception is pasted below:
INFO: [] webapp=/solr path=/select params={facet=true&facet.mincount=1&q=*:*&fac
et.field=grp_id&wt=javabin&rows=45&version=2.2} hits=25 status=0 QTime=2
1822816 [http-8085-5] ERROR com.nb.philips.util.SolrjUtil - Error fetching data
from Solr -!! org.apache.solr.client.solrj.SolrServerException: Error executing
query
org.apache.solr.client.solrj.SolrServerException: Error executing query
at org.apache.solr.client.solrj.request.QueryRequest.process(QueryReques
t.java:96)
at org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:109)
at com.nb.philips.util.SolrjUtil.getSearchResponse(SolrjUtil.java:70)
at com.nb.philips.HomePageBO.getHomePageVO(HomePageBO.java:57)
at com.nb.philips.HomePageBO.getGroupsSortedByRank(HomePageBO.java:41)
at org.apache.jsp.includes.dashboard_jsp._jspService(dashboard_jsp.java:
98)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:386)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
13)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDisp
atcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationD
ispatcher.java:551)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDis
patcher.java:488)
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary
.java:968)
at org.apache.jsp.pages.productDetails_jsp._jspService(productDetails_js
p.java:1917)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:386)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
13)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDisp
atcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(Applica
tionDispatcher.java:436)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationD
ispatcher.java:374)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDis
patcher.java:302)
at org.apache.struts.chain.commands.servlet.PerformForward.handleAsForwa
rd(PerformForward.java:113)
at org.apache.struts.chain.commands.servlet.PerformForward.perform(Perfo
rmForward.java:96)
at org.apache.struts.chain.commands.AbstractPerformForward.execute(Abstr
actPerformForward.java:54)
at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionComm
andBase.java:51)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.
java:304)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at org.apache.struts.chain.ComposableRequestProcessor.process(Composable
RequestProcessor.java:283)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:191
3)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at com.nb.philips.PhilipsFilter.doFilter(PhilipsFilter.java:72)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.j
ava:176)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:14
5)
at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewri
ter.java:92)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewrit
eFilter.java:381)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:191)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica
torBase.java:470)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:298)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcesso
r.java:864)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pr
ocess(Http11AprProtocol.java:579)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:16
65)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassCastException: java.lang.Integer cannot be cast to jav
a.lang.String
at org.apache.solr.common.util.NamedListCodec.readOrderedMap(NamedListCo
dec.java:97)
at org.apache.solr.common.util.NamedListCodec.readVal(NamedListCodec.jav
a:154)
at org.apache.solr.common.util.NamedListCodec.readSolrDocument(NamedList
Codec.java:284)
at org.apache.solr.common.util.NamedListCodec.readVal(NamedListCodec.jav
a:171)
at org.apache.solr.common.util.NamedListCodec.readArray(NamedListCodec.j
ava:367)
at org.apache.solr.common.util.NamedListCodec.readVal(NamedListCodec.jav
a:153)
at org.apache.solr.common.util.NamedListCodec.readSolrDocumentList(Named
ListCodec.java:301)
at org.apache.solr.common.util.NamedListCodec.readVal(NamedListCodec.jav
a:172)
at org.apache.solr.common.util.NamedListCodec.readOrderedMap(NamedListCo
dec.java:98)
at org.apache.solr.common.util.NamedListCodec.readVal(NamedListCodec.jav
a:154)
at org.apache.solr.common.util.NamedListCodec.unmarshal(NamedListCodec.j
ava:89)
at org.apache.solr.client.solrj.impl.BinaryResponseParser.processRespons
e(BinaryResponseParser.java:39)
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(Commo
nsHttpSolrServer.java:385)
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(Commo
nsHttpSolrServer.java:183)
at org.apache.solr.client.solrj.request.QueryRequest.process(QueryReques
t.java:90)
... 64 more
1822822 [http-8085-5] INFO com.nb.philips.HomePageBO - Got the response from S
Olr
Can someone point me to a solution, is this a problem with Solr or am I doing
something wrong ?
Thanks for your help!!
Best Regards,
Tejas Bavishi
