org.springframework.boot.autoconfigure.elasticsearch.rest.RestClientAutoConfiguration Maven / Gradle / Ivy
/*
* Copyright 2012-2018 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.rest;
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.Credentials;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.context.properties.PropertyMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* {@link EnableAutoConfiguration Auto-configuration} for Elasticsearch REST clients.
*
* @author Brian Clozel
* @since 2.1.0
*/
@Configuration
@ConditionalOnClass(RestClient.class)
@EnableConfigurationProperties(RestClientProperties.class)
public class RestClientAutoConfiguration {
private final RestClientProperties properties;
private final ObjectProvider builderCustomizers;
public RestClientAutoConfiguration(RestClientProperties properties,
ObjectProvider builderCustomizers) {
this.properties = properties;
this.builderCustomizers = builderCustomizers;
}
@Bean
@ConditionalOnMissingBean
public RestClient restClient(RestClientBuilder builder) {
return builder.build();
}
@Bean
@ConditionalOnMissingBean
public RestClientBuilder restClientBuilder() {
HttpHost[] hosts = this.properties.getUris().stream().map(HttpHost::create)
.toArray(HttpHost[]::new);
RestClientBuilder builder = RestClient.builder(hosts);
PropertyMapper map = PropertyMapper.get();
map.from(this.properties::getUsername).whenHasText().to((username) -> {
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
Credentials credentials = new UsernamePasswordCredentials(
this.properties.getUsername(), this.properties.getPassword());
credentialsProvider.setCredentials(AuthScope.ANY, credentials);
builder.setHttpClientConfigCallback((httpClientBuilder) -> httpClientBuilder
.setDefaultCredentialsProvider(credentialsProvider));
});
this.builderCustomizers.orderedStream()
.forEach((customizer) -> customizer.customize(builder));
return builder;
}
@Configuration
@ConditionalOnClass(RestHighLevelClient.class)
public static class RestHighLevelClientConfiguration {
@Bean
@ConditionalOnMissingBean
public RestHighLevelClient restHighLevelClient(
RestClientBuilder restClientBuilder) {
return new RestHighLevelClient(restClientBuilder);
}
}
}