| /* |
| * 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.lucene.search.CollectionStatistics; |
| |
| /** |
| * Modifiable version of {@link CollectionStatistics} useful for |
| * aggregation of per-shard stats. |
| */ |
| public class CollectionStats { |
| public final String field; |
| public long maxDoc; |
| public long docCount; |
| public long sumTotalTermFreq; |
| public long sumDocFreq; |
| |
| public CollectionStats(String field) { |
| this.field = field; |
| } |
| |
| public CollectionStats(String field, long maxDoc, long docCount, |
| long sumTotalTermFreq, long sumDocFreq) { |
| this.field = field; |
| this.maxDoc = maxDoc; |
| this.docCount = docCount; |
| this.sumTotalTermFreq = sumTotalTermFreq; |
| this.sumDocFreq = sumDocFreq; |
| } |
| |
| public CollectionStats(CollectionStatistics stats) { |
| this.field = stats.field(); |
| this.maxDoc = stats.maxDoc(); |
| this.docCount = stats.docCount(); |
| this.sumTotalTermFreq = stats.sumTotalTermFreq(); |
| this.sumDocFreq = stats.sumDocFreq(); |
| } |
| |
| public void add(CollectionStats stats) { |
| this.maxDoc += stats.maxDoc; |
| this.docCount += stats.docCount; |
| this.sumTotalTermFreq += stats.sumTotalTermFreq; |
| this.sumDocFreq += stats.sumDocFreq; |
| } |
| |
| public CollectionStatistics toCollectionStatistics() { |
| if (maxDoc == 0 || docCount == 0) { |
| return null; |
| } |
| return new CollectionStatistics(field, maxDoc, docCount, sumTotalTermFreq, sumDocFreq); |
| } |
| |
| public String toString() { |
| return StatsUtil.colStatsToString(this); |
| } |
| } |