001/* 002 * (C) Copyright 2014 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * bdelbosc 018 */ 019package org.nuxeo.elasticsearch.fetcher; 020 021import java.io.Serializable; 022import java.util.ArrayList; 023import java.util.HashMap; 024import java.util.List; 025import java.util.Map; 026import java.util.function.BiConsumer; 027 028import org.elasticsearch.action.search.SearchResponse; 029import org.elasticsearch.common.text.Text; 030import org.elasticsearch.search.SearchHit; 031import org.elasticsearch.search.fetch.subphase.highlight.HighlightField; 032import org.nuxeo.ecm.core.api.CoreSession; 033import org.nuxeo.ecm.core.api.DocumentModel; 034import org.nuxeo.ecm.core.api.impl.DocumentModelListImpl; 035import org.nuxeo.ecm.platform.query.api.PageProvider; 036import org.nuxeo.elasticsearch.io.DocumentModelReaders; 037 038/** 039 * @since 6.0 040 */ 041public class EsFetcher extends Fetcher { 042 043 protected final HitDocConsumer consumer; 044 045 public EsFetcher(CoreSession session, SearchResponse response, Map<String, String> repoNames) { 046 super(session, response, repoNames); 047 this.consumer = null; 048 } 049 050 /** 051 * @since 10.2 052 */ 053 public EsFetcher(CoreSession session, SearchResponse response, Map<String, String> repoNames, HitDocConsumer consumer) { 054 super(session, response, repoNames); 055 this.consumer = consumer; 056 } 057 058 @Override 059 public DocumentModelListImpl fetchDocuments() { 060 DocumentModelListImpl ret = new DocumentModelListImpl(getResponse().getHits().getHits().length); 061 DocumentModel doc; 062 String sid = getSession().getSessionId(); 063 for (SearchHit hit : getResponse().getHits()) { 064 // TODO: this does not work on multi repo 065 doc = DocumentModelReaders.fromSource(hit.getSourceAsMap()).sid(sid).getDocumentModel(); 066 067 if (doc != null && consumer != null) { 068 consumer.accept(hit, doc); 069 } 070 071 // Add highlight if it exists 072 Map<String, HighlightField> esHighlights = hit.getHighlightFields(); 073 if (!esHighlights.isEmpty()) { 074 Map<String, List<String>> fields = new HashMap<>(); 075 for (Map.Entry<String, HighlightField> entry : esHighlights.entrySet()) { 076 String field = entry.getKey(); 077 List<String> list = new ArrayList<>(); 078 for (Text fragment : entry.getValue().getFragments()) { 079 list.add(fragment.toString()); 080 } 081 fields.put(field, list); 082 } 083 doc.putContextData(PageProvider.HIGHLIGHT_CTX_DATA, (Serializable) fields); 084 } 085 ret.add(doc); 086 } 087 return ret; 088 } 089 090 /** 091 * Consumes both a SearchHit and DocumentModel. 092 * @since 10.2 093 */ 094 @FunctionalInterface 095 public interface HitDocConsumer extends BiConsumer<SearchHit, DocumentModel> { 096 097 } 098}