Java tutorial
/* * * * This file is part of the Hesperides distribution. * * (https://github.com/voyages-sncf-technologies/hesperides) * * Copyright (c) 2016 VSCT. * * * * Hesperides is free software: you can redistribute it and/or modify * * it under the terms of the GNU General Public License as * * published by the Free Software Foundation, version 3. * * * * Hesperides 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 * * General Public License for more details. * * * * You should have received a copy of the GNU General Public License * * along with this program. If not, see <http://www.gnu.org/licenses/>. * * */ package com.vsct.dt.hesperides.indexation.command; import com.fasterxml.jackson.core.JsonProcessingException; import com.vsct.dt.hesperides.indexation.ElasticSearchClient; import com.vsct.dt.hesperides.indexation.ElasticSearchIndexationCommand; import com.vsct.dt.hesperides.indexation.mapper.ElasticSearchMappers; import com.vsct.dt.hesperides.indexation.mapper.SingleToBulkMapper; import com.vsct.dt.hesperides.indexation.model.ElasticSearchEntity; import com.vsct.dt.hesperides.indexation.model.PlatformIndexation; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.util.List; import java.util.stream.Collectors; /** * Created by william_montaz on 09/12/2014. */ public final class IndexNewPlatformCommandBulk implements ElasticSearchIndexationCommand<PlatformIndexation> { private static final Logger LOGGER = LoggerFactory.getLogger(IndexNewPlatformCommandBulk.class); private final List<PlatformIndexation> platforms; public IndexNewPlatformCommandBulk(final List<PlatformIndexation> platforms) { this.platforms = platforms; } @Override public Void index(final ElasticSearchClient elasticSearchClient) { String body; List<SingleToBulkMapper> propertiesAsString; LOGGER.info("Index {} platforms.", platforms.size()); propertiesAsString = platforms.stream().map(platform -> { try { LOGGER.info("Index platform with name {}-{}-{}.", platform.getApplicationName(), platform.getPlatformName(), platform.getApplicationVersion()); return new SingleToBulkMapper(platform.getId(), ElasticSearchMappers.PLATFORM_WRITER.writeValueAsString(platform)); } catch (final JsonProcessingException e) { LOGGER.error("Could not serialize platform " + platform); throw new RuntimeException(e); } }).collect(Collectors.toList()); if (propertiesAsString != null && propertiesAsString.size() > 0) { body = propertiesAsString.stream().map(platform -> platform.toString()).collect(Collectors.joining("")); ElasticSearchEntity<PlatformIndexation> entity = elasticSearchClient .withResponseReader(ElasticSearchMappers.ES_ENTITY_PLATFORM_READER) .post("/platforms/_bulk", body); LOGGER.info("Successfully indexed new platform {}", propertiesAsString.size()); } return null; } }