@Bean
    public PluginDataHandler loggingElasticSearchPluginDataHandler() {
        return new LoggingElasticSearchPluginDataHandler();
    }
logging elasticsearch plugin data handler.
@return logging elasticsearch PluginDataHandler
shenyu-spring-boot-starter/shenyu-spring-boot-starter-plugin/shenyu-spring-boot-starter-plugin-logging-elasticsearch/src/main/java/org/apache/shenyu/springboot/starter/plugin/logging/elasticsearch/LoggingElasticSearchPluginConfiguration.java