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feat: ES6 java 客户端示例

dependabot/maven/codes/middleware/flyway/com.h2database-h2-2.2.220
dunwu 2023-06-29 22:27:04 +08:00
parent 8d1ef2086d
commit aa66b1f3e1
10 changed files with 626 additions and 209 deletions
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5
codes/javadb/elasticsearch/elasticsearch6/pom.xml
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@ -32,6 +32,11 @@
<artifactId>hutool-all</artifactId>
<version>5.7.20</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.15.2</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>

13
codes/javadb/elasticsearch/elasticsearch6/src/main/java/io/github/dunwu/javadb/elasticsearch/Demo.java
View File

@ -2,15 +2,21 @@ package io.github.dunwu.javadb.elasticsearch;
import io.github.dunwu.javadb.elasticsearch.entity.User;
import io.github.dunwu.javadb.elasticsearch.mapper.UserEsMapper;
import io.github.dunwu.javadb.elasticsearch.util.ElasticsearchUtil;
import org.elasticsearch.client.RestHighLevelClient;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
public class Demo {
private static final String HOSTS = "127.0.0.1:9200";
private static final RestHighLevelClient restHighLevelClient = ElasticsearchUtil.newRestHighLevelClient(HOSTS);
public static void main(String[] args) throws IOException, InterruptedException {
UserEsMapper mapper = new UserEsMapper();
UserEsMapper mapper = new UserEsMapper(restHighLevelClient);
System.out.println("索引是否存在：" + mapper.isIndexExists());
@ -24,6 +30,7 @@ public class Demo {
System.out.println("根据ID批量查询：" + mapper.pojoListByIds(Arrays.asList("1", "2")).toString());
Thread.sleep(1000);
System.out.println("根据ID批量删除：" + mapper.deleteByIds(Arrays.asList("1", "2")));
System.out.println("根据ID批量删除：" + mapper.batchDeleteById(Arrays.asList("1", "2")));
}
}

7
codes/javadb/elasticsearch/elasticsearch6/src/main/java/io/github/dunwu/javadb/elasticsearch/entity/EsEntity.java
View File

@ -7,5 +7,10 @@ package io.github.dunwu.javadb.elasticsearch.entity;
* @since 2023-06-28
*/
public interface EsEntity {
Long getId();
/**
* 获取 ES 主键
*/
String getDocId();
}

36
codes/javadb/elasticsearch/elasticsearch6/src/main/java/io/github/dunwu/javadb/elasticsearch/entity/Page.java 100644
View File

@ -0,0 +1,36 @@
package io.github.dunwu.javadb.elasticsearch.entity;
import lombok.Data;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
/**
* 分页实体
*
* @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
* @date 2023-06-28
*/
@Data
public class Page<T> {
private long total;
private int page;
private int size;
private List<T> content = new ArrayList<>();
public Page(long total, int page, int size) {
this.total = total;
this.page = page;
this.size = size;
}
public Page(long total, int page, int size, Collection<T> list) {
this.total = total;
this.page = page;
this.size = size;
this.content.addAll(list);
}
}

6
codes/javadb/elasticsearch/elasticsearch6/src/main/java/io/github/dunwu/javadb/elasticsearch/entity/User.java
View File

@ -12,10 +12,16 @@ import lombok.Data;
@Data
@Builder
public class User implements EsEntity {
private Long id;
private String username;
private String password;
private Integer age;
private String email;
@Override
public String getDocId() {
return null;
}
}

246
codes/javadb/elasticsearch/elasticsearch6/src/main/java/io/github/dunwu/javadb/elasticsearch/mapper/BaseEsMapper.java
View File

@ -1,45 +1,23 @@
package io.github.dunwu.javadb.elasticsearch.mapper;
import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.bean.copier.CopyOptions;
import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.io.IoUtil;
import cn.hutool.core.lang.Assert;
import io.github.dunwu.javadb.elasticsearch.entity.EsEntity;
import io.github.dunwu.javadb.elasticsearch.entity.Page;
import io.github.dunwu.javadb.elasticsearch.util.ElasticsearchUtil;
import lombok.extern.slf4j.Slf4j;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.indices.get.GetIndexRequest;
import org.elasticsearch.action.bulk.BackoffPolicy;
import org.elasticsearch.action.bulk.BulkProcessor;
import org.elasticsearch.action.bulk.BulkRequest;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.delete.DeleteRequest;
import org.elasticsearch.action.get.MultiGetItemResponse;
import org.elasticsearch.action.get.MultiGetRequest;
import org.elasticsearch.action.get.MultiGetResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.IndicesClient;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.Requests;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.common.unit.ByteSizeUnit;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import java.io.Closeable;
import java.io.IOException;
import java.util.*;
import java.util.concurrent.TimeUnit;
import java.util.function.BiConsumer;
import java.util.Collection;
import java.util.List;
/**
* ES Mapper 基础类
@ -48,13 +26,15 @@ import java.util.function.BiConsumer;
* @date 2023-06-27
*/
@Slf4j
public abstract class BaseEsMapper<T extends EsEntity> implements EsMapper<T>, Closeable {
public static final String HOSTS = "127.0.0.1:9200";
public abstract class BaseEsMapper<T extends EsEntity> implements EsMapper<T> {
private BulkProcessor bulkProcessor;
private final RestHighLevelClient restHighLevelClient = ElasticsearchUtil.newRestHighLevelClient(HOSTS);
protected final RestHighLevelClient restHighLevelClient;
public BaseEsMapper(RestHighLevelClient restHighLevelClient) {
this.restHighLevelClient = restHighLevelClient;
}
@Override
public RestHighLevelClient getClient() throws IOException {
@ -62,11 +42,10 @@ public abstract class BaseEsMapper<T extends EsEntity> implements EsMapper<T>, C
return restHighLevelClient;
}
@Override
public synchronized BulkProcessor getBulkProcessor() {
public synchronized BulkProcessor getBulkProcessor() throws IOException {
if (bulkProcessor == null) {
bulkProcessor = newAsyncBulkProcessor();
bulkProcessor = ElasticsearchUtil.newAsyncBulkProcessor(getClient());
}
return bulkProcessor;
}
@ -75,176 +54,133 @@ public abstract class BaseEsMapper<T extends EsEntity> implements EsMapper<T>, C
public boolean isIndexExists() throws IOException {
IndicesClient indicesClient = getClient().indices();
GetIndexRequest request = new GetIndexRequest();
request.indices(getIndexAlias());
request.indices(getIndex());
return indicesClient.exists(request, RequestOptions.DEFAULT);
}
@Override
public SearchResponse getById(String id) throws IOException {
SearchRequest searchRequest = Requests.searchRequest(getIndexAlias());
QueryBuilder queryBuilder = QueryBuilders.idsQuery().addIds(id);
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
sourceBuilder.query(queryBuilder);
searchRequest.source(sourceBuilder);
return getClient().search(searchRequest, RequestOptions.DEFAULT);
return ElasticsearchUtil.getById(getClient(), getIndex(), getType(), id);
}
@Override
public T pojoById(String id) throws IOException {
SearchResponse response = getById(id);
if (response == null) {
return null;
}
List<T> list = ElasticsearchUtil.toPojoList(response, getEntityClass());
if (CollectionUtil.isEmpty(list)) {
return null;
}
return list.get(0);
return ElasticsearchUtil.pojoById(getClient(), getIndex(), getType(), id, getEntityClass());
}
@Override
public List<T> pojoListByIds(Collection<String> ids) throws IOException {
if (CollectionUtil.isEmpty(ids)) {
return null;
return ElasticsearchUtil.pojoListByIds(getClient(), getIndex(), getType(), ids, getEntityClass());
}
MultiGetRequest request = new MultiGetRequest();
for (String id : ids) {
request.add(new MultiGetRequest.Item(getIndexAlias(), getIndexType(), id));
}
MultiGetResponse multiGetResponse = getClient().mget(request, RequestOptions.DEFAULT);
if (null == multiGetResponse || multiGetResponse.getResponses() == null || multiGetResponse.getResponses().length <= 0) {
return new ArrayList<>();
}
List<T> list = new ArrayList<>();
for (MultiGetItemResponse itemResponse : multiGetResponse.getResponses()) {
if (itemResponse.isFailed()) {
log.error("通过id获取文档失败", itemResponse.getFailure().getFailure());
} else {
T entity = ElasticsearchUtil.toPojo(itemResponse.getResponse(), getEntityClass());
if (entity != null) {
list.add(entity);
}
}
}
return list;
@Override
public Page<T> pojoPage(SearchSourceBuilder builder) throws IOException {
return ElasticsearchUtil.pojoPage(getClient(), getIndex(), getType(), builder, getEntityClass());
}
@Override
public String insert(T entity) throws IOException {
Map<String, Object> map = new HashMap<>();
BeanUtil.beanToMap(entity, map, CopyOptions.create().ignoreError());
XContentBuilder builder = XContentFactory.jsonBuilder();
builder.startObject();
for (Map.Entry<String, Object> entry : map.entrySet()) {
String key = entry.getKey();
Object value = entry.getValue();
builder.field(key, value);
}
builder.endObject();
IndexRequest request = Requests.indexRequest(getIndexAlias()).type(getIndexType()).source(builder);
if (entity.getId() != null) {
request.id(entity.getId().toString());
}
IndexResponse response = getClient().index(request, RequestOptions.DEFAULT);
if (response == null) {
return null;
}
return response.getId();
return ElasticsearchUtil.insert(getClient(), getIndex(), getType(), entity);
}
@Override
public boolean batchInsert(Collection<T> list) throws IOException {
if (CollectionUtil.isEmpty(list)) {
return true;
return ElasticsearchUtil.batchInsert(getClient(), getIndex(), getType(), list);
}
BulkRequest bulkRequest = new BulkRequest();
for (T entity : list) {
Map<String, Object> map = ElasticsearchUtil.toMap(entity);
IndexRequest request = Requests.indexRequest(getIndexAlias()).type(getIndexType()).source(map);
if (entity.getId() != null) {
request.id(entity.getId().toString());
@Override
public void asyncBatchInsert(Collection<T> list) throws IOException {
ActionListener<BulkResponse> listener = new ActionListener<BulkResponse>() {
@Override
public void onResponse(BulkResponse response) {
if (response != null && !response.hasFailures()) {
log.info("【ES】异步批量插入成功！");
} else {
log.warn("【ES】异步批量插入失败！");
}
bulkRequest.add(request);
}
BulkResponse response = getClient().bulk(bulkRequest, RequestOptions.DEFAULT);
return !(response == null || response.hasFailures());
@Override
public void onFailure(Exception e) {
log.error("【ES】异步批量插入异常！", e);
}
};
asyncBatchInsert(list, listener);
}
@Override
public void asyncBatchInsert(Collection<T> list, ActionListener<BulkResponse> listener) throws IOException {
ElasticsearchUtil.asyncBatchInsert(getClient(), getIndex(), getType(), list, listener);
}
@Override
public boolean updateById(T entity) throws IOException {
return ElasticsearchUtil.updateById(getClient(), getIndex(), getType(), entity);
}
@Override
public boolean batchUpdateById(Collection<T> list) throws IOException {
return ElasticsearchUtil.batchUpdateById(getClient(), getIndex(), getType(), list);
}
@Override
public void asyncBatchUpdateById(Collection<T> list) throws IOException {
ActionListener<BulkResponse> listener = new ActionListener<BulkResponse>() {
@Override
public void onResponse(BulkResponse response) {
if (response != null && !response.hasFailures()) {
log.info("【ES】异步批量更新成功！");
} else {
log.warn("【ES】异步批量更新失败！");
}
}
@Override
public void onFailure(Exception e) {
log.error("【ES】异步批量更新异常！", e);
}
};
asyncBatchUpdateById(list, listener);
}
@Override
public void asyncBatchUpdateById(Collection<T> list, ActionListener<BulkResponse> listener) throws IOException {
ElasticsearchUtil.asyncBatchUpdateById(getClient(), getIndex(), getType(), list, listener);
}
@Override
public boolean deleteById(String id) throws IOException {
return deleteByIds(Collections.singleton(id));
return ElasticsearchUtil.deleteById(getClient(), getIndex(), getType(), id);
}
@Override
public boolean deleteByIds(Collection<String> ids) throws IOException {
if (CollectionUtil.isEmpty(ids)) {
return true;
}
BulkRequest bulkRequest = new BulkRequest();
ids.forEach(id -> {
DeleteRequest deleteRequest = Requests.deleteRequest(getIndexAlias()).type(getIndexType()).id(id);
bulkRequest.add(deleteRequest);
});
BulkResponse response = getClient().bulk(bulkRequest, RequestOptions.DEFAULT);
return response != null && !response.hasFailures();
}
private BulkProcessor newAsyncBulkProcessor() {
BulkProcessor.Listener listener = new BulkProcessor.Listener() {
@Override
public void beforeBulk(long executionId, BulkRequest request) {
public boolean batchDeleteById(Collection<String> ids) throws IOException {
return ElasticsearchUtil.batchDeleteById(getClient(), getIndex(), getType(), ids);
}
@Override
public void afterBulk(long executionId, BulkRequest request, BulkResponse response) {
if (response.hasFailures()) {
log.error("Bulk [{}] executed with failures,response = {}", executionId, response.buildFailureMessage());
public void asyncBatchDeleteById(Collection<String> ids) throws IOException {
ActionListener<BulkResponse> listener = new ActionListener<BulkResponse>() {
@Override
public void onResponse(BulkResponse response) {
if (response != null && !response.hasFailures()) {
log.info("【ES】异步批量删除成功！");
} else {
log.warn("【ES】异步批量删除失败！ids: {}", ids);
}
}
@Override
public void afterBulk(long executionId, BulkRequest request, Throwable failure) {
public void onFailure(Exception e) {
log.error("【ES】异步批量删除异常！ids: {}", ids, e);
}
};
BiConsumer<BulkRequest, ActionListener<BulkResponse>> bulkConsumer = (request, bulkListener) -> restHighLevelClient.bulkAsync(request, RequestOptions.DEFAULT, bulkListener);
bulkProcessor = BulkProcessor.builder(bulkConsumer, listener)
// 1000条数据请求执行一次bulk
.setBulkActions(1000)
// 5mb的数据刷新一次bulk
.setBulkSize(new ByteSizeValue(5L, ByteSizeUnit.MB))
// 并发请求数量, 0不并发, 1并发允许执行
.setConcurrentRequests(2)
// 固定1s必须刷新一次
.setFlushInterval(TimeValue.timeValueMillis(1000L))
// 重试3次，间隔100ms
.setBackoffPolicy(BackoffPolicy.constantBackoff(TimeValue.timeValueMillis(200L), 3)).build();
Runtime.getRuntime().addShutdownHook(new Thread(() -> {
try {
bulkProcessor.flush();
bulkProcessor.awaitClose(30, TimeUnit.SECONDS);
} catch (Exception e) {
log.error("Failed to close bulkProcessor", e);
}
log.info("bulkProcessor closed!");
}));
return bulkProcessor;
asyncBatchDeleteById(ids, listener);
}
@Override
public void close() {
IoUtil.close(restHighLevelClient);
public void asyncBatchDeleteById(Collection<String> ids, ActionListener<BulkResponse> listener) throws IOException {
ElasticsearchUtil.asyncBatchDeleteById(getClient(), getIndex(), getType(), ids, listener);
}
}

36
codes/javadb/elasticsearch/elasticsearch6/src/main/java/io/github/dunwu/javadb/elasticsearch/mapper/EsMapper.java
View File

@ -1,9 +1,13 @@
package io.github.dunwu.javadb.elasticsearch.mapper;
import io.github.dunwu.javadb.elasticsearch.entity.EsEntity;
import io.github.dunwu.javadb.elasticsearch.entity.Page;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.bulk.BulkProcessor;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import java.io.IOException;
import java.util.Collection;
@ -17,20 +21,15 @@ import java.util.List;
*/
public interface EsMapper<T extends EsEntity> {
/**
* 获取索引别名
*/
String getIndexAlias();
/**
* 获取索引名
*/
String getIndexName();
String getIndex();
/**
* 获取索引类型
*/
String getIndexType();
String getType();
/**
* 获取实体类型
@ -39,7 +38,7 @@ public interface EsMapper<T extends EsEntity> {
RestHighLevelClient getClient() throws IOException;
BulkProcessor getBulkProcessor();
BulkProcessor getBulkProcessor() throws IOException;
boolean isIndexExists() throws IOException;
@ -49,11 +48,30 @@ public interface EsMapper<T extends EsEntity> {
List<T> pojoListByIds(Collection<String> ids) throws IOException;
Page<T> pojoPage(SearchSourceBuilder builder) throws IOException;
String insert(T entity) throws IOException;
boolean batchInsert(Collection<T> list) throws IOException;
void asyncBatchInsert(Collection<T> list) throws IOException;
void asyncBatchInsert(Collection<T> list, ActionListener<BulkResponse> listener) throws IOException;
boolean updateById(T entity) throws IOException;
boolean batchUpdateById(Collection<T> list) throws IOException;
void asyncBatchUpdateById(Collection<T> list) throws IOException;
void asyncBatchUpdateById(Collection<T> list, ActionListener<BulkResponse> listener) throws IOException;
boolean deleteById(String id) throws IOException;
boolean deleteByIds(Collection<String> ids) throws IOException;
boolean batchDeleteById(Collection<String> ids) throws IOException;
void asyncBatchDeleteById(Collection<String> ids) throws IOException;
void asyncBatchDeleteById(Collection<String> ids, ActionListener<BulkResponse> listener) throws IOException;
}

14
codes/javadb/elasticsearch/elasticsearch6/src/main/java/io/github/dunwu/javadb/elasticsearch/mapper/UserEsMapper.java
View File

@ -1,6 +1,7 @@
package io.github.dunwu.javadb.elasticsearch.mapper;
import io.github.dunwu.javadb.elasticsearch.entity.User;
import org.elasticsearch.client.RestHighLevelClient;
/**
* User ES Mapper
@ -10,18 +11,17 @@ import io.github.dunwu.javadb.elasticsearch.entity.User;
*/
public class UserEsMapper extends BaseEsMapper<User> {
public UserEsMapper(RestHighLevelClient restHighLevelClient) {
super(restHighLevelClient);
}
@Override
public String getIndexAlias() {
public String getIndex() {
return "user";
}
@Override
public String getIndexName() {
return "user";
}
@Override
public String getIndexType() {
public String getType() {
return "_doc";
}

347
codes/javadb/elasticsearch/elasticsearch6/src/main/java/io/github/dunwu/javadb/elasticsearch/util/ElasticsearchUtil.java
View File

@ -3,22 +3,57 @@ package io.github.dunwu.javadb.elasticsearch.util;
import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.bean.copier.CopyOptions;
import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.util.ArrayUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONUtil;
import io.github.dunwu.javadb.elasticsearch.entity.EsEntity;
import io.github.dunwu.javadb.elasticsearch.entity.Page;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpHost;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.DocWriteResponse;
import org.elasticsearch.action.bulk.BackoffPolicy;
import org.elasticsearch.action.bulk.BulkProcessor;
import org.elasticsearch.action.bulk.BulkRequest;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.delete.DeleteRequest;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.get.MultiGetItemResponse;
import org.elasticsearch.action.get.MultiGetRequest;
import org.elasticsearch.action.get.MultiGetResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.action.update.UpdateRequest;
import org.elasticsearch.action.update.UpdateResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.Requests;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.common.unit.ByteSizeUnit;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.rest.RestStatus;
import org.elasticsearch.search.SearchHits;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.function.BiConsumer;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* ES 工具类
@ -57,6 +92,51 @@ public class ElasticsearchUtil {
}
}
public static BulkProcessor newAsyncBulkProcessor(RestHighLevelClient client) {
BulkProcessor.Listener listener = new BulkProcessor.Listener() {
@Override
public void beforeBulk(long executionId, BulkRequest request) {
}
@Override
public void afterBulk(long executionId, BulkRequest request, BulkResponse response) {
if (response.hasFailures()) {
log.error("Bulk [{}] executed with failures,response = {}", executionId,
response.buildFailureMessage());
}
}
@Override
public void afterBulk(long executionId, BulkRequest request, Throwable failure) {
}
};
BiConsumer<BulkRequest, ActionListener<BulkResponse>> bulkConsumer =
(request, bulkListener) -> client.bulkAsync(request, RequestOptions.DEFAULT, bulkListener);
BulkProcessor bulkProcessor = BulkProcessor.builder(bulkConsumer, listener)
// 1000条数据请求执行一次bulk
.setBulkActions(1000)
// 5mb的数据刷新一次bulk
.setBulkSize(new ByteSizeValue(5L, ByteSizeUnit.MB))
// 并发请求数量, 0不并发, 1并发允许执行
.setConcurrentRequests(2)
// 固定1s必须刷新一次
.setFlushInterval(TimeValue.timeValueMillis(1000L))
// 重试3次，间隔100ms
.setBackoffPolicy(
BackoffPolicy.constantBackoff(TimeValue.timeValueMillis(200L),
3)).build();
Runtime.getRuntime().addShutdownHook(new Thread(() -> {
try {
bulkProcessor.flush();
bulkProcessor.awaitClose(30, TimeUnit.SECONDS);
} catch (Exception e) {
log.error("Failed to close bulkProcessor", e);
}
log.info("bulkProcessor closed!");
}));
return bulkProcessor;
}
public static HttpHost[] toHttpHostList(String hosts) {
if (StrUtil.isBlank(hosts)) {
return null;
@ -88,6 +168,240 @@ public class ElasticsearchUtil {
return restClientBuilder;
}
public static <T extends EsEntity> String insert(RestHighLevelClient client, String index, String type, T entity)
throws IOException {
Map<String, Object> map = new HashMap<>();
BeanUtil.beanToMap(entity, map, CopyOptions.create().ignoreError());
XContentBuilder builder = XContentFactory.jsonBuilder();
builder.startObject();
for (Map.Entry<String, Object> entry : map.entrySet()) {
String key = entry.getKey();
Object value = entry.getValue();
builder.field(key, value);
}
builder.endObject();
IndexRequest request = new IndexRequest(index, type).source(builder);
if (entity.getDocId() != null) {
request.id(entity.getDocId());
}
IndexResponse response = client.index(request, RequestOptions.DEFAULT);
if (response != null && response.getResult() == DocWriteResponse.Result.CREATED) {
return response.getId();
} else {
return null;
}
}
public static <T extends EsEntity> boolean batchInsert(RestHighLevelClient client, String index, String type,
Collection<T> list) throws IOException {
if (CollectionUtil.isEmpty(list)) {
return true;
}
BulkRequest bulkRequest = new BulkRequest();
for (T entity : list) {
Map<String, Object> map = ElasticsearchUtil.toMap(entity);
IndexRequest request = new IndexRequest(index, type).source(map);
if (entity.getDocId() != null) {
request.id(entity.getDocId());
}
bulkRequest.add(request);
}
BulkResponse response = client.bulk(bulkRequest, RequestOptions.DEFAULT);
return response != null && !response.hasFailures();
}
public static <T extends EsEntity> void asyncBatchInsert(RestHighLevelClient client, String index, String type,
Collection<T> list, ActionListener<BulkResponse> listener) {
if (CollectionUtil.isEmpty(list)) {
return;
}
BulkRequest bulkRequest = new BulkRequest();
for (T entity : list) {
Map<String, Object> map = ElasticsearchUtil.toMap(entity);
IndexRequest request = new IndexRequest(index, type).source(map);
if (entity.getDocId() != null) {
request.id(entity.getDocId());
}
bulkRequest.add(request);
}
client.bulkAsync(bulkRequest, RequestOptions.DEFAULT, listener);
}
public static <T extends EsEntity> boolean updateById(RestHighLevelClient client, String index, String type,
T entity) throws IOException {
if (entity == null || entity.getDocId() == null) {
return false;
}
Map<String, Object> map = toMap(entity);
UpdateRequest request = new UpdateRequest(index, type, entity.getDocId()).doc(map);
UpdateResponse response = client.update(request, RequestOptions.DEFAULT);
return response != null && response.getResult() == DocWriteResponse.Result.UPDATED;
}
public static <T extends EsEntity> boolean batchUpdateById(RestHighLevelClient client, String index, String type,
Collection<T> list) throws IOException {
if (CollectionUtil.isEmpty(list)) {
return true;
}
BulkRequest bulkRequest = new BulkRequest();
for (T entity : list) {
if (entity == null || entity.getDocId() == null) {
continue;
}
Map<String, Object> map = ElasticsearchUtil.toMap(entity);
UpdateRequest request = new UpdateRequest(index, type, entity.getDocId()).doc(map);
bulkRequest.add(request);
}
BulkResponse response = client.bulk(bulkRequest, RequestOptions.DEFAULT);
return response != null && !response.hasFailures();
}
public static <T extends EsEntity> void asyncBatchUpdateById(RestHighLevelClient client, String index,
String type, Collection<T> list, ActionListener<BulkResponse> listener) {
if (CollectionUtil.isEmpty(list)) {
return;
}
BulkRequest bulkRequest = new BulkRequest();
for (T entity : list) {
if (entity == null || entity.getDocId() == null) {
continue;
}
Map<String, Object> map = ElasticsearchUtil.toMap(entity);
UpdateRequest request = new UpdateRequest(index, type, entity.getDocId()).doc(map);
bulkRequest.add(request);
}
client.bulkAsync(bulkRequest, RequestOptions.DEFAULT, listener);
}
public static boolean deleteById(RestHighLevelClient client, String index, String type, String id)
throws IOException {
return batchDeleteById(client, index, type, Collections.singleton(id));
}
public static boolean batchDeleteById(RestHighLevelClient client, String index, String type, Collection<String> ids)
throws IOException {
if (CollectionUtil.isEmpty(ids)) {
return true;
}
BulkRequest bulkRequest = new BulkRequest();
ids.forEach(id -> {
DeleteRequest deleteRequest = new DeleteRequest(index, type, id);
bulkRequest.add(deleteRequest);
});
BulkResponse response = client.bulk(bulkRequest, RequestOptions.DEFAULT);
return response != null && !response.hasFailures();
}
public static void asyncBatchDeleteById(RestHighLevelClient client, String index, String type,
Collection<String> ids, ActionListener<BulkResponse> listener) {
if (CollectionUtil.isEmpty(ids)) {
return;
}
BulkRequest bulkRequest = new BulkRequest();
ids.forEach(id -> {
DeleteRequest deleteRequest = new DeleteRequest(index, type, id);
bulkRequest.add(deleteRequest);
});
client.bulkAsync(bulkRequest, RequestOptions.DEFAULT, listener);
}
public static SearchResponse getById(RestHighLevelClient client, String index, String type, String id)
throws IOException {
SearchRequest searchRequest = Requests.searchRequest(index).types(type);
QueryBuilder queryBuilder = QueryBuilders.idsQuery().addIds(id);
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
sourceBuilder.query(queryBuilder);
searchRequest.source(sourceBuilder);
return client.search(searchRequest, RequestOptions.DEFAULT);
}
public static <T> T pojoById(RestHighLevelClient client, String index, String type, String id, Class<T> clazz)
throws IOException {
SearchResponse response = getById(client, index, type, id);
if (response == null) {
return null;
}
List<T> list = ElasticsearchUtil.toPojoList(response, clazz);
if (CollectionUtil.isEmpty(list)) {
return null;
}
return list.get(0);
}
public static <T> List<T> pojoListByIds(RestHighLevelClient client, String index, String type,
Collection<String> ids, Class<T> clazz) throws IOException {
if (CollectionUtil.isEmpty(ids)) {
return null;
}
MultiGetRequest request = new MultiGetRequest();
for (String id : ids) {
request.add(new MultiGetRequest.Item(index, type, id));
}
MultiGetResponse multiGetResponse = client.mget(request, RequestOptions.DEFAULT);
if (null == multiGetResponse
|| multiGetResponse.getResponses() == null
|| multiGetResponse.getResponses().length <= 0) {
return new ArrayList<>();
}
List<T> list = new ArrayList<>();
for (MultiGetItemResponse itemResponse : multiGetResponse.getResponses()) {
if (itemResponse.isFailed()) {
log.error("通过id获取文档失败", itemResponse.getFailure().getFailure());
} else {
T entity = ElasticsearchUtil.toPojo(itemResponse.getResponse(), clazz);
if (entity != null) {
list.add(entity);
}
}
}
return list;
}
public static <T> Page<T> pojoPage(RestHighLevelClient client, String index, String type,
SearchSourceBuilder builder, Class<T> clazz) throws IOException {
SearchResponse response = query(client, index, type, builder);
if (response == null || response.status() != RestStatus.OK) {
return null;
}
List<T> content = toPojoList(response, clazz);
SearchHits searchHits = response.getHits();
return new Page<>(searchHits.getTotalHits(), builder.from(), builder.size(), content);
}
public static SearchResponse query(RestHighLevelClient client, String index, String type,
SearchSourceBuilder builder) throws IOException {
SearchRequest request = new SearchRequest(index).types(type);
request.source(builder);
return client.search(request, RequestOptions.DEFAULT);
}
public static <T> T toPojo(GetResponse response, Class<T> clazz) {
if (null == response) {
return null;
@ -99,31 +413,22 @@ public class ElasticsearchUtil {
}
public static <T> List<T> toPojoList(SearchResponse response, Class<T> clazz) {
List<T> list = null;
try {
if (response != null) {
SearchHit[] searchHits = response.getHits().getHits();
T entity;
list = new ArrayList<T>(searchHits.length);
for (SearchHit hit : searchHits) {
if (null == hit) {
continue;
if (response == null || response.status() != RestStatus.OK) {
return new ArrayList<>();
}
entity = JSONUtil.toBean(hit.getSourceAsString(), clazz);
list.add(entity);
if (ArrayUtil.isEmpty(response.getHits().getHits())) {
return new ArrayList<>();
}
}
} catch (Exception e) {
log.error("解析ES返回结果异常, response:{}", response);
throw e;
}
return list;
return Stream.of(response.getHits().getHits())
.map(hit -> JSONUtil.toBean(hit.getSourceAsString(), clazz))
.collect(Collectors.toList());
}
public static <T> Map<String, Object> toMap(T entity) {
Map<String, Object> map = new HashMap<>();
BeanUtil.beanToMap(entity, map, CopyOptions.create().ignoreError());
return map;
return JsonUtil.toMap(JsonUtil.toJson(entity));
}
}

99
codes/javadb/elasticsearch/elasticsearch6/src/main/java/io/github/dunwu/javadb/elasticsearch/util/JsonUtil.java 100644
View File

@ -0,0 +1,99 @@
package io.github.dunwu.javadb.elasticsearch.util;
import cn.hutool.core.util.StrUtil;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.json.JsonMapper;
import lombok.extern.slf4j.Slf4j;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* JSON 工具类
*
* @author Zhang Peng
* @date 2023-06-29
*/
@Slf4j
public class JsonUtil {
private static final ObjectMapper MAPPER =
JsonMapper.builder()
.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true)
.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true)
.serializationInclusion(JsonInclude.Include.ALWAYS)
.build();
public static <T> List<T> toList(String json, Class<T> clazz) {
if (StrUtil.isBlank(json)) {
return null;
}
JavaType javaType = MAPPER.getTypeFactory().constructParametricType(List.class, clazz);
try {
return MAPPER.readValue(json, javaType);
} catch (Exception e) {
log.error("反序列化失败！json: {}, msg: {}", json, e.getMessage());
}
return null;
}
public static <K, V> Map<K, V> toMap(String json) {
if (StrUtil.isBlank(json)) {
return new HashMap<>(0);
}
try {
return MAPPER.readValue(json, new TypeReference<Map<K, V>>() { });
} catch (Exception e) {
log.error("反序列化失败！json: {}, msg: {}", json, e.getMessage());
}
return Collections.emptyMap();
}
public static <T> T toBean(String json, Class<T> clazz) {
if (StrUtil.isBlank(json)) {
return null;
}
try {
return MAPPER.readValue(json, clazz);
} catch (Exception e) {
log.error("反序列化失败！json: {}, msg: {}", json, e.getMessage());
}
return null;
}
public static <T> T toBean(String json, TypeReference<T> typeReference) {
if (StrUtil.isBlank(json)) {
return null;
}
try {
return (T) MAPPER.readValue(json, typeReference);
} catch (Exception e) {
log.error("反序列化失败！json: {}, msg: {}", json, e.getMessage());
}
return null;
}
public static <T> String toJson(T obj) {
if (obj == null) {
return null;
}
if (obj instanceof String) {
return (String) obj;
}
try {
return MAPPER.writeValueAsString(obj);
} catch (Exception e) {
log.error("序列化失败！obj: {}, msg: {}", obj, e.getMessage());
}
return null;
}
}