| /* |
| * 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.analytics.facet; |
| |
| import java.util.Map; |
| import java.util.function.Consumer; |
| |
| import org.apache.lucene.search.Query; |
| import org.apache.solr.analytics.function.ReductionCollectionManager.ReductionDataCollection; |
| import org.apache.solr.common.SolrException; |
| import org.apache.solr.common.SolrException.ErrorCode; |
| import org.apache.solr.request.SolrQueryRequest; |
| import org.apache.solr.search.Filter; |
| import org.apache.solr.search.QParser; |
| import org.apache.solr.search.QueryUtils; |
| |
| /** |
| * A facet that breaks down the data by additional Solr Queries. |
| */ |
| public class QueryFacet extends AbstractSolrQueryFacet { |
| private final Map<String,String> queries; |
| |
| public QueryFacet(String name, Map<String, String> queries) { |
| super(name); |
| this.queries = queries; |
| } |
| |
| @Override |
| public void createFacetValueExecuters(final Filter filter, SolrQueryRequest queryRequest, Consumer<FacetValueQueryExecuter> consumer) { |
| queries.forEach( (queryName, query) -> { |
| final Query q; |
| try { |
| q = QParser.getParser(query, queryRequest).getQuery(); |
| } catch( Exception e ){ |
| throw new SolrException(ErrorCode.BAD_REQUEST,"Invalid query '"+query+"' in query facet '" + getName() + "'",e); |
| } |
| // The searcher sends docIds to the QueryFacetAccumulator which forwards |
| // them to <code>collectQuery()</code> in this class for collection. |
| Query queryQuery = QueryUtils.combineQueryAndFilter(q, filter); |
| |
| ReductionDataCollection dataCol = collectionManager.newDataCollection(); |
| reductionData.put(queryName, dataCol); |
| consumer.accept(new FacetValueQueryExecuter(dataCol, queryQuery)); |
| }); |
| } |
| } |