/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.core;
import org.apache.solr.search.SolrIndexSearcher;
import org.apache.solr.search.DocList;
import org.apache.solr.search.DocIterator;
import org.apache.solr.common.params.CommonParams;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.request.LocalSolrQueryRequest;
import org.apache.solr.response.SolrQueryResponse;
import java.util.List;
/**
* @version $Id: QuerySenderListener.java 1137045 2011-06-17 21:49:38Z erick $
*/
class QuerySenderListener extends AbstractSolrEventListener {
public QuerySenderListener(SolrCore core) {
super(core);
}
@Override
public void newSearcher(SolrIndexSearcher newSearcher, SolrIndexSearcher currentSearcher) {
final SolrIndexSearcher searcher = newSearcher;
log.info("QuerySenderListener sending requests to " + newSearcher);
List<NamedList> allLists = (List<NamedList>)args.get("queries");
if (allLists == null) return;
for (NamedList nlst : allLists) {
try {
// bind the request to a particular searcher (the newSearcher)
NamedList params = addEventParms(currentSearcher, nlst);
LocalSolrQueryRequest req = new LocalSolrQueryRequest(core,params) {
@Override public SolrIndexSearcher getSearcher() { return searcher; }
@Override public void close() { }
};
SolrQueryResponse rsp = new SolrQueryResponse();
core.execute(core.getRequestHandler(req.getParams().get(CommonParams.QT)), req, rsp);
// Retrieve the Document instances (not just the ids) to warm
// the OS disk cache, and any Solr document cache. Only the top
// level values in the NamedList are checked for DocLists.
NamedList values = rsp.getValues();
for (int i=0; i<values.size(); i++) {
Object o = values.getVal(i);
if (o instanceof DocList) {
DocList docs = (DocList)o;
for (DocIterator iter = docs.iterator(); iter.hasNext();) {
newSearcher.doc(iter.nextDoc());
}
}
}
req.close();
} catch (Exception e) {
// do nothing... we want to continue with the other requests.
// the failure should have already been logged.
}
}
log.info("QuerySenderListener done.");
}
}