| /* |
| * 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.polygene.index.elasticsearch.internal; |
| |
| import org.apache.polygene.index.elasticsearch.ElasticSearchSupport; |
| import org.elasticsearch.client.Client; |
| import org.elasticsearch.common.settings.Settings; |
| import org.elasticsearch.common.xcontent.XContentBuilder; |
| import org.elasticsearch.common.xcontent.XContentFactory; |
| import org.elasticsearch.common.xcontent.XContentType; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public abstract class AbstractElasticSearchSupport |
| implements ElasticSearchSupport |
| { |
| protected static final Logger LOGGER = LoggerFactory.getLogger( ElasticSearchSupport.class ); |
| protected static final String DEFAULT_CLUSTER_NAME = "polygene_cluster"; |
| protected static final String DEFAULT_INDEX_NAME = "polygene_index"; |
| protected static final String ENTITIES_TYPE = "polygene_entities"; |
| |
| protected Client client; |
| protected String index; |
| protected boolean indexNonAggregatedAssociations; |
| |
| @Override |
| public final void activateService() |
| throws Exception |
| { |
| activateElasticSearch(); |
| |
| // Wait for yellow status: the primary shard is allocated but replicas may not be yet |
| client.admin().cluster().prepareHealth().setWaitForYellowStatus().execute().actionGet(); |
| |
| if( !client.admin().indices().prepareExists( index ).setIndices( index ).execute().actionGet().isExists() ) |
| { |
| // Create empty index |
| LOGGER.info( "Will create '{}' index as it does not exists.", index ); |
| Settings.Builder indexSettings = Settings.builder().loadFromSource( |
| XContentFactory.jsonBuilder() |
| .startObject() |
| .field( "refresh_interval", -1 ) |
| .startObject( "mapper" ) |
| .field( "dynamic", false ) |
| .endObject() |
| .startObject( "analysis" ) |
| .startObject( "analyzer" ) |
| .startObject( "default" ) |
| .field( "type", "keyword" ) |
| .endObject() |
| .endObject() |
| .endObject() |
| .endObject() |
| .string(), |
| XContentType.JSON); |
| XContentBuilder mapping = XContentFactory.jsonBuilder() |
| .startObject() |
| .startObject( entitiesType() ) |
| .startArray( "dynamic_templates" ) |
| .startObject() |
| .startObject( entitiesType() ) |
| .field( "match", "*" ) |
| .field( "match_mapping_type", "string" ) |
| .startObject( "mapping" ) |
| .field( "type", "string" ) |
| .field( "index", "not_analyzed" ) |
| .endObject() |
| .endObject() |
| .endObject() |
| .endArray() |
| .endObject() |
| .endObject(); |
| client.admin().indices().prepareCreate( index ) |
| .setIndex( index ) |
| .setSettings( indexSettings ) |
| .addMapping( entitiesType(), mapping ) |
| .execute() |
| .actionGet(); |
| LOGGER.info( "Index '{}' created.", index ); |
| } |
| |
| // Ensure index is fresh |
| client.admin().indices().prepareRefresh( index ).execute().actionGet(); |
| |
| // Wait for yellow status: the primary shard is allocated but replicas may not be yet |
| client.admin().cluster().prepareHealth().setWaitForYellowStatus().execute().actionGet(); |
| |
| LOGGER.info( "Index/Query connected to Elastic Search" ); |
| } |
| |
| protected abstract void activateElasticSearch() |
| throws Exception; |
| |
| @Override |
| public final void passivateService() |
| throws Exception |
| { |
| passivateClient(); |
| index = null; |
| indexNonAggregatedAssociations = false; |
| passivateElasticSearch(); |
| } |
| |
| protected void passivateClient() |
| { |
| client.close(); |
| client = null; |
| } |
| |
| protected void passivateElasticSearch() |
| throws Exception |
| { |
| // NOOP |
| } |
| |
| @Override |
| public final Client client() |
| { |
| return client; |
| } |
| |
| @Override |
| public final String index() |
| { |
| return index; |
| } |
| |
| @Override |
| public final String entitiesType() |
| { |
| return ENTITIES_TYPE; |
| } |
| |
| @Override |
| public final boolean indexNonAggregatedAssociations() |
| { |
| return indexNonAggregatedAssociations; |
| } |
| } |