implement core selection in SolrServlet

- making initcore() obsolete

source/net/yacy/cora/federate/solr/SolrServlet.java

@@ -48,9 +48,11 @@ import net.yacy.cora.federate.solr.responsewriter.HTMLResponseWriter;
 import net.yacy.cora.federate.solr.responsewriter.OpensearchResponseWriter;
 import net.yacy.cora.federate.solr.responsewriter.YJsonResponseWriter;
 import net.yacy.cora.util.ConcurrentLog;
+import net.yacy.search.Switchboard;
 import net.yacy.search.query.AccessTracker;
 import net.yacy.search.query.SearchEvent;
 import net.yacy.search.schema.CollectionSchema;
+import net.yacy.search.schema.WebgraphSchema;
 import org.apache.solr.common.SolrDocumentList;
 
 import org.apache.solr.common.SolrException;
@@ -76,10 +78,6 @@ public class SolrServlet implements Filter {
     public SolrServlet() { 
     }
 
-    public static void initCore(EmbeddedSolrConnector c) {
-        connector = c;
-    }
-
     @Override
     public void init(FilterConfig config) throws ServletException {
 
@@ -134,15 +132,22 @@ public class SolrServlet implements Filter {
             throw new ServletException("Unsupported method: " + hrequest.getMethod());
         }
 
+     
+        // prepare request to solr        
+        MultiMapSolrParams mmsp = SolrRequestParsers.parseQueryString(hrequest.getQueryString()); 
+        String corename = mmsp.get("core",CollectionSchema.CORE_NAME);
+
+        // get the embedded connector
+        boolean defaultConnector = corename.equals(CollectionSchema.CORE_NAME);
+        connector = defaultConnector ? Switchboard.getSwitchboard().index.fulltext().getDefaultEmbeddedConnector() : Switchboard.getSwitchboard().index.fulltext().getEmbeddedConnector(WebgraphSchema.CORE_NAME);
+
         SolrCore core = connector.getCore();
         if (core == null) {
             hresponse.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "core not initialized");
             return;
         }
         
-        // prepare request to solr
         hrequest.setAttribute("org.apache.solr.CoreContainer", core);
-        MultiMapSolrParams mmsp = SolrRequestParsers.parseQueryString(hrequest.getQueryString()); 
         String wt = mmsp.get(CommonParams.WT, "xml"); // maybe use /solr/select?q=*:*&start=0&rows=10&wt=exml            
         QueryResponseWriter responseWriter = RESPONSE_WRITER.get(wt); // check local response writer
         if (responseWriter == null) {

source/net/yacy/http/Jetty8HttpServerImpl.java

@@ -77,7 +77,6 @@ public class Jetty8HttpServerImpl implements YaCyHttpServer {
         solrContext.setContextPath("/solr");       
         solrContext.addServlet(new ServletHolder(Servlet404.class),"/*");  
      
-        SolrServlet.initCore(sb.index.fulltext().getDefaultEmbeddedConnector());
         solrContext.addFilter(new FilterHolder(SolrServlet.class), "/*", EnumSet.of(DispatcherType.REQUEST));
 
         // configure root context