EsService.java
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package com.idss.vulsync.mvc.service;
import cn.hutool.core.lang.Assert;
import cn.hutool.core.util.ObjectUtil;
import com.alibaba.fastjson.JSON;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.type.TypeFactory;
import com.idss.vulsync.entity.AssetReportVO;
import lombok.extern.slf4j.Slf4j;
import org.elasticsearch.action.DocWriteRequest;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexRequest;
import org.elasticsearch.action.bulk.*;
import org.elasticsearch.action.delete.DeleteRequest;
import org.elasticsearch.action.delete.DeleteResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.action.search.SearchScrollRequest;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.action.support.master.AcknowledgedResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.indices.CreateIndexRequest;
import org.elasticsearch.client.indices.CreateIndexResponse;
import org.elasticsearch.client.indices.GetIndexRequest;
import org.elasticsearch.common.unit.ByteSizeUnit;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.core.TimeValue;
import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.reindex.BulkByScrollResponse;
import org.elasticsearch.index.reindex.DeleteByQueryRequest;
import org.elasticsearch.search.Scroll;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.elasticsearch.xcontent.XContentType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.io.IOException;
import java.util.*;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
/**
* @Author: zc
* @Date: 2021/11/19 14:35
*/
@Component
@Slf4j
public class EsService {
@Autowired
ObjectMapper objectMapper;
@Autowired
RestHighLevelClient client;
public int delete(String indexName) {
try {
GetIndexRequest indexRequest = new GetIndexRequest(indexName);
boolean inExists = client.indices().exists(indexRequest, RequestOptions.DEFAULT);
if (inExists) {
DeleteIndexRequest request = new DeleteIndexRequest(indexName);
AcknowledgedResponse response = client.indices().delete(request, RequestOptions.DEFAULT);
if (!response.isAcknowledged()) {
// 2:索引存在删除失败
log.info("删除索引失败{}",indexName);
return 2;
}
} else {
// 1:索引不存在
log.info("删除索引不存在{}",indexName);
return 1;
}
} catch (IllegalArgumentException e) {
throw e;
} catch (Exception e) {
log.error("删除索引异常{}",indexName,e);
}
// 0:索引存在并删除成功
return 0;
}
/**
* 批量插入
*/
public void addBatch(List<AssetReportVO> models, String index) {
if (!indexIsExist(index)) {
createIndex(index);
}
BulkProcessor.Listener listener = new BulkProcessor.Listener() {
@Override
public void beforeBulk(long executionId, BulkRequest request) {
log.info("1. 【beforeBulk】批次[{}] 携带 {} 请求数量", executionId, request.numberOfActions());
}
@Override
public void afterBulk(long executionId, BulkRequest request,
BulkResponse response) {
// if (!response.hasFailures()) {
// log.info("2. 【afterBulk-成功】批量 [{}] 完成在 {} ms", executionId, response.getTook().getMillis());
// } else {
// BulkItemResponse[] items = response.getItems();
// for (BulkItemResponse item : items) {
// if (item.isFailed()) {
// log.info("2. 【afterBulk-失败】批量 [{}] 出现异常的原因 : {}", executionId, item.getFailureMessage());
// break;
// }
// }
// }
}
@Override
public void afterBulk(long executionId, BulkRequest request,
Throwable failure) {
log.error("3. 【afterBulk-failure失败】es执行bluk失败", failure);
// List<DocWriteRequest<?>> requests = request.requests();
// List<String> esIds = requests.stream().map(DocWriteRequest::id).collect(Collectors.toList());
}
};
BulkProcessor bulkProcessor = BulkProcessor.builder(
(request, bulkListener) ->
client.bulkAsync(request, RequestOptions.DEFAULT, bulkListener),
listener)
.setBulkActions(10000) // Execute the bulk every 10,000 requests
.setBulkSize(new ByteSizeValue(100, ByteSizeUnit.MB)) // Execute the bulk every 5MB
.build();
try {
for (AssetReportVO entity : models) {
LinkedHashMap<String,Object> map = objectMapper.readValue(objectMapper.writeValueAsString(entity), TypeFactory.defaultInstance().constructMapType(LinkedHashMap.class, String.class, Object.class));
IndexRequest indexRequest = new IndexRequest(index).id(entity.getAssetId())
.type(index)
.source(map);
bulkProcessor.add(indexRequest);
}
bulkProcessor.flush();
bulkProcessor.awaitClose(3, TimeUnit.MINUTES);
}catch (Exception e){
e.printStackTrace();
}
}
public boolean createIndex(String indexName) {
if (indexIsExist(indexName)) {
return true;
}
CreateIndexResponse createIndexResponse = null;
try {
CreateIndexRequest createIndexRequest = new CreateIndexRequest(indexName);
createIndexResponse = client.indices().create(createIndexRequest, RequestOptions.DEFAULT);
} catch (IOException e) {
throw new RuntimeException(e);
}
if (createIndexResponse.isAcknowledged()) {
log.info("Index created");
return true;
} else {
log.info("Index creation failed");
return false;
}
}
public boolean indexIsExist(String indexName) {
Assert.notNull(indexName, "exist index name assert null!");
GetIndexRequest getIndexRequest = new GetIndexRequest("fisher");
boolean exists = false;
try {
exists = client.indices().exists(getIndexRequest, RequestOptions.DEFAULT);
} catch (IOException e) {
log.info("indexIsExist found exception:" + e);
}
return exists;
}
// public boolean addBatch(List<Object> models, String index) {
// for (Object model : models) {
// String id = idGenerator.randomUUID();
// IndexRequest indexRequest = new IndexRequest(index).id(id).source(JSON.toJSONString(model), XContentType.JSON);
// try {
// client.index(indexRequest, COMMON_OPTIONS);
// } catch (IOException e) {
// log.warn("inserts to es is error, errorMsg " + id, e);
// }
// }
// return true;
// }
private IndicesOptions setIndicesOptionsParam() {
return IndicesOptions.fromOptions(true, true, true, false, IndicesOptions.strictExpandOpenAndForbidClosed());
}
/**
* @param index
* @param queryBuilder
* @return
*/
public List<AssetReportVO> selectList(String index, QueryBuilder queryBuilder) {
try {
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
searchSourceBuilder.query(queryBuilder);
searchSourceBuilder.size(10000);
Scroll scroll = new Scroll(new TimeValue(600000));
SearchRequest searchRequest = new SearchRequest();
searchRequest.indices(index);
searchRequest.scroll(scroll);
searchRequest.source(searchSourceBuilder);
SearchResponse scrollResp = client.search(searchRequest, RequestOptions.DEFAULT);
List<AssetReportVO> resultList = new ArrayList<>();
AssetReportVO entity = null;
//记录滚动id。
String scrollId = scrollResp.getScrollId();
//滚动查询部分，将从第10001条数据开始取。
SearchHit[] scrollHits = scrollResp.getHits().getHits();
for (SearchHit searchHit : scrollHits) {
entity = JSON.parseObject(searchHit.getSourceAsString(), AssetReportVO.class);
resultList.add(entity);
}
log.info("resultList size " + resultList.size());
while (ObjectUtil.isNotNull(scrollHits) && scrollHits.length > 0) {
//构造滚动查询条件
SearchScrollRequest searchScrollRequest = new SearchScrollRequest(scrollId);
searchScrollRequest.scroll(scroll);
//响应必须是上面的响应对象，需要对上一层进行覆盖。
scrollResp = client.scroll(searchScrollRequest, RequestOptions.DEFAULT);
scrollId = scrollResp.getScrollId();
scrollHits = scrollResp.getHits().getHits();
for (SearchHit searchHit : scrollHits) {
entity = JSON.parseObject(searchHit.getSourceAsString(), AssetReportVO.class);
resultList.add(entity);
}
log.info("resultList size " + resultList.size());
}
log.info("resultList final size " + resultList.size());
return resultList;
} catch (Exception e) {
log.error("selectList timeindex is error,errorMsg ", e);
}
return new ArrayList<>();
}
}