/* * 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.search.stats; import java.lang.invoke.MethodHandles; import java.util.List; import org.apache.solr.handler.component.ResponseBuilder; import org.apache.solr.handler.component.ShardRequest; import org.apache.solr.handler.component.ShardResponse; import org.apache.solr.request.SolrQueryRequest; import org.apache.solr.search.SolrIndexSearcher; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Default implementation that simply ignores global term statistics, and always * uses local term statistics. */ public class LocalStatsCache extends StatsCache { private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); @Override protected StatsSource doGet(SolrQueryRequest req) { log.debug("## GET {}", req); return new LocalStatsSource(statsCacheMetrics); } // by returning null we don't create additional round-trip request. @Override protected ShardRequest doRetrieveStatsRequest(ResponseBuilder rb) { log.debug("## RSR {}", rb.req); // already incremented the stats - decrement it now statsCacheMetrics.retrieveStats.decrement(); return null; } @Override protected void doMergeToGlobalStats(SolrQueryRequest req, List<ShardResponse> responses) { if (log.isDebugEnabled()) { log.debug("## MTGS {}", req); for (ShardResponse r : responses) { log.debug(" - {}", r); } } } @Override protected void doReturnLocalStats(ResponseBuilder rb, SolrIndexSearcher searcher) { log.debug("## RLS {}", rb.req); } @Override protected void doReceiveGlobalStats(SolrQueryRequest req) { log.debug("## RGS {}", req); } @Override protected void doSendGlobalStats(ResponseBuilder rb, ShardRequest outgoing) { log.debug("## SGS {}", outgoing); } }