/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.portal.search.elasticsearch.internal;
import com.liferay.portal.kernel.search.Document;
import com.liferay.portal.kernel.search.DocumentImpl;
import com.liferay.portal.kernel.search.Field;
import com.liferay.portal.kernel.search.IndexWriter;
import com.liferay.portal.kernel.search.SearchContext;
import com.liferay.portal.kernel.search.SearchException;
import com.liferay.portal.kernel.search.suggest.BaseGenericSpellCheckIndexWriter;
import com.liferay.portal.kernel.search.suggest.SpellCheckIndexWriter;
import com.liferay.portal.search.elasticsearch.connection.ElasticsearchConnectionManager;
import com.liferay.portal.search.elasticsearch.document.ElasticsearchUpdateDocumentCommand;
import com.liferay.portal.search.elasticsearch.index.IndexNameBuilder;
import com.liferay.portal.search.elasticsearch.internal.util.DocumentTypes;
import java.util.Collection;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.index.query.MatchAllQueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.osgi.service.component.annotations.ReferenceCardinality;
import org.osgi.service.component.annotations.ReferencePolicy;
import org.osgi.service.component.annotations.ReferencePolicyOption;
/**
* @author Michael C. Han
*/
@Component(
immediate = true, property = {"search.engine.impl=Elasticsearch"},
service = SpellCheckIndexWriter.class
)
public class ElasticsearchSpellCheckIndexWriter
extends BaseGenericSpellCheckIndexWriter {
@Override
public void clearQuerySuggestionDictionaryIndexes(
SearchContext searchContext)
throws SearchException {
try {
deleteIndices(searchContext, DocumentTypes.KEYWORD_QUERY);
}
catch (Exception e) {
throw new SearchException("Unable to clear query suggestions", e);
}
}
@Override
public void clearSpellCheckerDictionaryIndexes(SearchContext searchContext)
throws SearchException {
try {
deleteIndices(searchContext, DocumentTypes.SPELL_CHECK);
}
catch (Exception e) {
throw new SearchException("Unable to to clear spell checks", e);
}
}
@Override
protected void addDocument(
String documentType, SearchContext searchContext, Document document)
throws SearchException {
elasticsearchUpdateDocumentCommand.updateDocument(
documentType, searchContext, document, false);
}
@Override
protected void addDocuments(
String documentType, SearchContext searchContext,
Collection<Document> documents)
throws SearchException {
elasticsearchUpdateDocumentCommand.updateDocuments(
documentType, searchContext, documents, false);
}
@Override
protected Document createDocument(
long companyId, long groupId, String languageId, String keywords,
float weight, String keywordFieldName, String typeFieldValue,
int maxNGramLength) {
Document document = createDocument();
document.addKeyword(Field.COMPANY_ID, companyId);
document.addKeyword(Field.GROUP_ID, groupId);
String localizedName = DocumentImpl.getLocalizedName(
languageId, keywordFieldName);
document.addKeyword(localizedName, keywords);
document.addKeyword(Field.PRIORITY, String.valueOf(weight));
document.addKeyword(Field.SPELL_CHECK_WORD, true);
document.addKeyword(Field.UID, getUID(companyId, languageId, keywords));
return document;
}
protected void deleteIndices(SearchContext searchContext, String indexType)
throws Exception {
if (_searchHitsProcessor == null) {
throw new IllegalStateException("Module not properly initialized");
}
SearchResponseScroller searchResponseScroller = null;
try {
Client client = elasticsearchConnectionManager.getClient();
MatchAllQueryBuilder matchAllQueryBuilder =
QueryBuilders.matchAllQuery();
searchResponseScroller = new SearchResponseScroller(
client, searchContext, indexNameBuilder, matchAllQueryBuilder,
TimeValue.timeValueSeconds(30), indexType);
searchResponseScroller.prepare();
searchResponseScroller.scroll(_searchHitsProcessor);
}
finally {
if (searchResponseScroller != null) {
searchResponseScroller.close();
}
}
}
@Reference(
cardinality = ReferenceCardinality.OPTIONAL,
policy = ReferencePolicy.DYNAMIC,
policyOption = ReferencePolicyOption.GREEDY,
target = "(!(search.engine.impl=*))"
)
protected void setIndexWriter(IndexWriter indexWriter) {
_searchHitsProcessor = new DeleteDocumentsSearchHitsProcessor(
indexWriter);
}
protected void unsetIndexWriter(IndexWriter indexWriter) {
_searchHitsProcessor = null;
}
@Reference(unbind = "-")
protected ElasticsearchConnectionManager elasticsearchConnectionManager;
@Reference(unbind = "-")
protected ElasticsearchUpdateDocumentCommand
elasticsearchUpdateDocumentCommand;
@Reference(unbind = "-")
protected IndexNameBuilder indexNameBuilder;
private volatile SearchHitsProcessor _searchHitsProcessor;
}