/*
* 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 org.apache.solr.core.PluginInfo;
import org.apache.solr.handler.component.ResponseBuilder;
import org.apache.solr.request.SolrQueryRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.invoke.MethodHandles;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;
public class ExactSharedStatsCache extends ExactStatsCache {
private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
// local stats obtained from shard servers
private final Map<String,Map<String,TermStats>> perShardTermStats = new ConcurrentHashMap<>();
private final Map<String,Map<String,CollectionStats>> perShardColStats = new ConcurrentHashMap<>();
// global stats synchronized from the master
private final Map<String,TermStats> currentGlobalTermStats = new ConcurrentHashMap<>();
private final Map<String,CollectionStats> currentGlobalColStats = new ConcurrentHashMap<>();
@Override
public StatsSource get(SolrQueryRequest req) {
LOG.debug("total={}, cache {}", currentGlobalColStats, currentGlobalTermStats.size());
return new ExactStatsSource(currentGlobalTermStats, currentGlobalColStats);
}
@Override
public void init(PluginInfo info) {}
@Override
protected void addToPerShardColStats(SolrQueryRequest req, String shard,
Map<String,CollectionStats> colStats) {
perShardColStats.put(shard, colStats);
}
@Override
protected void printStats(SolrQueryRequest req) {
LOG.debug("perShardColStats={}, perShardTermStats={}", perShardColStats, perShardTermStats);
}
@Override
protected void addToPerShardTermStats(SolrQueryRequest req, String shard, String termStatsString) {
Map<String,TermStats> termStats = StatsUtil
.termStatsMapFromString(termStatsString);
if (termStats != null) {
perShardTermStats.put(shard, termStats);
}
}
protected Map<String,CollectionStats> getPerShardColStats(ResponseBuilder rb, String shard) {
return perShardColStats.get(shard);
}
protected TermStats getPerShardTermStats(SolrQueryRequest req, String t, String shard) {
Map<String,TermStats> cache = perShardTermStats.get(shard);
return cache.get(t);
}
protected void addToGlobalColStats(SolrQueryRequest req,
Entry<String,CollectionStats> e) {
currentGlobalColStats.put(e.getKey(), e.getValue());
}
protected void addToGlobalTermStats(SolrQueryRequest req, Entry<String,TermStats> e) {
currentGlobalTermStats.put(e.getKey(), e.getValue());
}
}