/*

 *

 * (C) 2013-26 - ntop.org

 *

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software Foundation,

 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

 *

 */

#ifndef _ELASTIC_SEARCH_H_

#define _ELASTIC_SEARCH_H_

#include "ntop_includes.h"

class ElasticSearch : public FlowDB {

 private:

  pthread_t esThreadLoop;

  std::atomic<u_int32_t> num_queued_elems;

  SPSCQueue<char*>* export_queue;

  bool reportDrops;

  time_t lastReportedDropsTime;

  char *es_template_push_url, *es_version_query_url;

  char es_version[2];

  bool es_version_inited;

  const char* get_es_version();

  const char* get_es_template();

  void shutdown();

 public:

  ElasticSearch(NetworkInterface* _iface);

  ~ElasticSearch();

  inline bool atleast_version_6() {

    const char* ver = get_es_version();

    return ver && strcmp(ver, "6") >= 0;

  };

  inline bool atleast_version_8() {

    const char* ver = get_es_version();

    return ver && strcmp(ver, "8") >= 0;

  };

  void pushEStemplate();

  void indexESdata();

  virtual bool dumpFlow(time_t when, Flow* f, char* json);

  virtual bool startDumpLoop();

};

#endif /* _ELASTIC_SEARCH_H_ */