| /* |
| * 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.metron.elasticsearch.dao; |
| |
| import static org.apache.metron.common.Constants.GUID; |
| import static org.apache.metron.elasticsearch.utils.ElasticsearchUtils.queryAllResults; |
| import static org.elasticsearch.index.query.QueryBuilders.boolQuery; |
| import static org.elasticsearch.index.query.QueryBuilders.constantScoreQuery; |
| import static org.elasticsearch.index.query.QueryBuilders.existsQuery; |
| import static org.elasticsearch.index.query.QueryBuilders.nestedQuery; |
| import static org.elasticsearch.index.query.QueryBuilders.termQuery; |
| |
| import org.apache.lucene.search.join.ScoreMode; |
| import org.apache.metron.indexing.dao.metaalert.MetaAlertConfig; |
| import org.apache.metron.indexing.dao.metaalert.MetaAlertConstants; |
| import org.apache.metron.indexing.dao.metaalert.MetaAlertSearchDao; |
| import org.apache.metron.indexing.dao.metaalert.MetaAlertStatus; |
| import org.apache.metron.indexing.dao.search.GroupRequest; |
| import org.apache.metron.indexing.dao.search.GroupResponse; |
| import org.apache.metron.indexing.dao.search.InvalidSearchException; |
| import org.apache.metron.indexing.dao.search.SearchRequest; |
| import org.apache.metron.indexing.dao.search.SearchResponse; |
| import org.elasticsearch.index.query.InnerHitBuilder; |
| import org.elasticsearch.index.query.QueryBuilder; |
| import org.elasticsearch.index.query.QueryBuilders; |
| import org.elasticsearch.index.query.QueryStringQueryBuilder; |
| |
| import java.io.IOException; |
| |
| public class ElasticsearchMetaAlertSearchDao implements MetaAlertSearchDao { |
| |
| protected ElasticsearchDao elasticsearchDao; |
| private MetaAlertConfig config; |
| private int pageSize; |
| |
| public ElasticsearchMetaAlertSearchDao(ElasticsearchDao elasticsearchDao, |
| MetaAlertConfig config, int pageSize) { |
| this.elasticsearchDao = elasticsearchDao; |
| this.config = config; |
| this.pageSize = pageSize; |
| } |
| |
| @Override |
| public SearchResponse search(SearchRequest searchRequest) throws InvalidSearchException { |
| // Wrap the query to also get any meta-alerts. |
| QueryBuilder qb = constantScoreQuery(boolQuery() |
| .must(boolQuery() |
| .should(new QueryStringQueryBuilder(searchRequest.getQuery())) |
| .should(nestedQuery( |
| MetaAlertConstants.ALERT_FIELD, |
| new QueryStringQueryBuilder(searchRequest.getQuery()), |
| ScoreMode.None |
| ) |
| ) |
| ) |
| // Ensures that it's a meta alert with active status or that it's an alert (signified by |
| // having no status field) |
| .must(boolQuery() |
| .should(termQuery(MetaAlertConstants.STATUS_FIELD, |
| MetaAlertStatus.ACTIVE.getStatusString())) |
| .should(boolQuery().mustNot(existsQuery(MetaAlertConstants.STATUS_FIELD))) |
| ) |
| .mustNot(existsQuery(MetaAlertConstants.METAALERT_FIELD)) |
| ); |
| return elasticsearchDao.search(searchRequest, qb); |
| } |
| |
| @Override |
| public GroupResponse group(GroupRequest groupRequest) throws InvalidSearchException { |
| // Wrap the query to hide any alerts already contained in meta alerts |
| QueryBuilder qb = QueryBuilders.boolQuery() |
| .must(new QueryStringQueryBuilder(groupRequest.getQuery())) |
| .mustNot(existsQuery(MetaAlertConstants.METAALERT_FIELD)); |
| return elasticsearchDao.group(groupRequest, qb); |
| } |
| |
| @Override |
| public SearchResponse getAllMetaAlertsForAlert(String guid) throws InvalidSearchException, IOException { |
| if (guid == null || guid.trim().isEmpty()) { |
| throw new InvalidSearchException("Guid cannot be empty"); |
| } |
| // Searches for all alerts containing the meta alert guid in it's "metalerts" array |
| QueryBuilder qb = boolQuery() |
| .must( |
| nestedQuery( |
| MetaAlertConstants.ALERT_FIELD, |
| boolQuery() |
| .must(termQuery(MetaAlertConstants.ALERT_FIELD + "." + GUID, guid)), |
| ScoreMode.None |
| ).innerHit(new InnerHitBuilder()) |
| ) |
| .must(termQuery(MetaAlertConstants.STATUS_FIELD, MetaAlertStatus.ACTIVE.getStatusString())); |
| return queryAllResults(elasticsearchDao.getClient().getHighLevelClient(), qb, config.getMetaAlertIndex(), |
| pageSize); |
| } |
| } |