/*
* Copyright 2012-2014 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
*
* 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.springframework.boot.autoconfigure.elasticsearch;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.elasticsearch.client.Client;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.client.NodeClientFactoryBean;
import org.springframework.data.elasticsearch.client.TransportClientFactoryBean;
import org.springframework.util.StringUtils;
/**
* {@link org.springframework.boot.autoconfigure.EnableAutoConfiguration
* Auto-configuration} for Elasticsearch.
*
* @author Artur Konczak
* @author Mohsin Husen
* @author Andy Wilkinson
* @since 1.1.0
*/
@Configuration
@ConditionalOnClass({ Client.class, TransportClientFactoryBean.class,
NodeClientFactoryBean.class })
@EnableConfigurationProperties(ElasticsearchProperties.class)
public class ElasticsearchAutoConfiguration implements DisposableBean {
private static Log logger = LogFactory.getLog(ElasticsearchAutoConfiguration.class);
@Autowired
private ElasticsearchProperties properties;
private Client client;
@Bean
public Client elasticsearchClient() {
try {
this.client = createClient();
return this.client;
}
catch (Exception ex) {
throw new IllegalStateException(ex);
}
}
private Client createClient() throws Exception {
if (StringUtils.hasLength(this.properties.getClusterNodes())) {
return createTransportClient();
}
return createNodeClient();
}
private Client createNodeClient() throws Exception {
NodeClientFactoryBean factory = new NodeClientFactoryBean(true);
factory.setClusterName(this.properties.getClusterName());
factory.afterPropertiesSet();
return factory.getObject();
}
private Client createTransportClient() throws Exception {
TransportClientFactoryBean factory = new TransportClientFactoryBean();
factory.setClusterName(this.properties.getClusterName());
factory.setClusterNodes(this.properties.getClusterNodes());
factory.afterPropertiesSet();
return factory.getObject();
}
@Override
public void destroy() throws Exception {
if (this.client != null) {
try {
if (logger.isInfoEnabled()) {
logger.info("Closing Elasticsearch client");
}
if (this.client != null) {
this.client.close();
}
}
catch (final Exception ex) {
if (logger.isErrorEnabled()) {
logger.error("Error closing Elasticsearch client: ", ex);
}
}
}
}
}