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Spring Data Implementation for Elasticsearch
/*
* Copyright 2022-2023 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.data.elasticsearch.client.elc;
import co.elastic.clients.elasticsearch.ElasticsearchClient;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.FactoryBeanNotInitializedException;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.data.elasticsearch.client.ClientConfiguration;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* ElasticsearchClientFactoryBean
*
* @author Peter-Josef Meisch
* @since 5.0
*/
public class ElasticsearchClientFactoryBean
implements FactoryBean, InitializingBean, DisposableBean {
private static final Log LOGGER = LogFactory.getLog(ElasticsearchClientFactoryBean.class);
private @Nullable AutoCloseableElasticsearchClient client;
private String hosts = "http://localhost:9200";
static final String COMMA = ",";
@Override
public void destroy() {
try {
LOGGER.info("Closing elasticSearch client");
if (client != null) {
client.close();
}
} catch (final Exception e) {
LOGGER.error("Error closing ElasticSearch client: ", e);
}
}
@Override
public void afterPropertiesSet() throws Exception {
buildClient();
}
@Override
public ElasticsearchClient getObject() {
if (client == null) {
throw new FactoryBeanNotInitializedException();
}
return client;
}
@Override
public Class getObjectType() {
return ElasticsearchClient.class;
}
@Override
public boolean isSingleton() {
return false;
}
protected void buildClient() throws Exception {
Assert.hasText(hosts, "[Assertion Failed] At least one host must be set.");
var clientConfiguration = ClientConfiguration.builder().connectedTo(hosts).build();
client = (AutoCloseableElasticsearchClient) ElasticsearchClients.createImperative(clientConfiguration);
}
public void setHosts(String hosts) {
this.hosts = hosts;
}
public String getHosts() {
return this.hosts;
}
}