ElasticsearchAutoConfiguration.java

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//

package org.springframework.boot.autoconfigure.data.elasticsearch;

import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Properties;
import java.util.Map.Entry;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.elasticsearch.client.Client;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.lease.Releasable;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.settings.Settings.Builder;
import org.elasticsearch.node.Node;
import org.elasticsearch.node.NodeBuilder;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
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.ReflectionUtils;
import org.springframework.util.StringUtils;

@Configuration
@ConditionalOnClass({Client.class, TransportClientFactoryBean.class, NodeClientFactoryBean.class})
@EnableConfigurationProperties({ElasticsearchProperties.class})
public class ElasticsearchAutoConfiguration implements DisposableBean {
    private static final Map<String, String> DEFAULTS;
    private static final Log logger;
    private final ElasticsearchProperties properties;
    private Releasable releasable;

    public ElasticsearchAutoConfiguration(ElasticsearchProperties properties) {
        this.properties = properties;
    }

    @Bean
    @ConditionalOnMissingBean
    public Client elasticsearchClient() {
        try {
            return this.createClient();
        } catch (Exception var2) {
            throw new IllegalStateException(var2);
        }
    }

    private Client createClient() throws Exception {
        return StringUtils.hasLength(this.properties.getClusterNodes()) ? this.createTransportClient() : this.createNodeClient();
    }

    private Client createNodeClient() throws Exception {
        Builder settings = Settings.settingsBuilder();
        Iterator var2 = DEFAULTS.entrySet().iterator();

        while(var2.hasNext()) {
            Entry<String, String> entry = (Entry)var2.next();
            if (!this.properties.getProperties().containsKey(entry.getKey())) {
                settings.put((String)entry.getKey(), (String)entry.getValue());
            }
        }

        settings.put(this.properties.getProperties());
        Node node = (new NodeBuilder()).settings(settings).clusterName(this.properties.getClusterName()).node();
        this.releasable = node;
        return node.client();
    }

    private Client createTransportClient() throws Exception {
        TransportClientFactoryBean factory = new TransportClientFactoryBean();
        factory.setClusterNodes(this.properties.getClusterNodes());
        factory.setProperties(this.createProperties());
        factory.afterPropertiesSet();
        TransportClient client = factory.getObject();
        this.releasable = client;
        return client;
    }

    private Properties createProperties() {
        Properties properties = new Properties();
        properties.put("cluster.name", this.properties.getClusterName());
        properties.putAll(this.properties.getProperties());
        return properties;
    }

    public void destroy() throws Exception {
        if (this.releasable != null) {
            try {
                if (logger.isInfoEnabled()) {
                    logger.info("Closing Elasticsearch client");
                }

                try {
                    this.releasable.close();
                } catch (NoSuchMethodError var2) {
                    ReflectionUtils.invokeMethod(ReflectionUtils.findMethod(Releasable.class, "release"), this.releasable);
                }
            } catch (Exception var3) {
                if (logger.isErrorEnabled()) {
                    logger.error("Error closing Elasticsearch client: ", var3);
                }
            }
        }

    }

    static {
        Map<String, String> defaults = new LinkedHashMap();
        defaults.put("http.enabled", String.valueOf(false));
        defaults.put("node.local", String.valueOf(true));
        defaults.put("path.home", System.getProperty("user.dir"));
        DEFAULTS = Collections.unmodifiableMap(defaults);
        logger = LogFactory.getLog(ElasticsearchAutoConfiguration.class);
    }
}