/*
    * Copyright (c) 2002-2014, Mairie de Paris
    * All rights reserved.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    *
    *  1. Redistributions of source code must retain the above copyright notice
   *     and the following disclaimer.
   *
   *  2. Redistributions in binary form must reproduce the above copyright notice
   *     and the following disclaimer in the documentation and/or other materials
   *     provided with the distribution.
   *
   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
   *     contributors may be used to endorse or promote products derived from
   *     this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   * License 1.0
   */
  package fr.paris.lutece.plugins.elasticsearch.modules.statsfilter.service;
  
  import fr.paris.lutece.portal.service.util.AppLogService;
  
  import org.elasticsearch.action.ActionFuture;
  import org.elasticsearch.action.admin.indices.create.CreateIndexRequestBuilder;
  import org.elasticsearch.action.admin.indices.delete.DeleteIndexRequestBuilder;
  import org.elasticsearch.action.admin.indices.exists.indices.IndicesExistsRequest;
  import org.elasticsearch.action.admin.indices.exists.indices.IndicesExistsResponse;
  
  import org.elasticsearch.client.Client;
  
  import org.elasticsearch.common.xcontent.XContentBuilder;
  import static org.elasticsearch.common.xcontent.XContentFactory.jsonBuilder;
  
  import java.io.IOException;
  import org.elasticsearch.action.admin.indices.create.CreateIndexResponse;
  import org.elasticsearch.indices.IndexAlreadyExistsException;
  
  /**
   *
   * @author pierre
   */
  public class ElasticsearchUtils
  {
  
      public static void createIndex(Client client, String strIndex, String strDocumentType)
      {
          try
          {
              XContentBuilder mappingBuilder = jsonBuilder().startObject().startObject(strDocumentType)
                      .startObject("_timestamp").field("enabled", "true").endObject()
                      .endObject().endObject();
              System.out.println(mappingBuilder.string());
  
              CreateIndexRequestBuilder createIndexRequestBuilder = client.admin().indices().prepareCreate(strIndex);
              createIndexRequestBuilder.addMapping(strDocumentType, mappingBuilder);
              CreateIndexResponse createIndexResponse = createIndexRequestBuilder.execute().actionGet( Constants.TIMEOUT );
  
              if (createIndexResponse != null && createIndexResponse.isAcknowledged())
              {
                  AppLogService.info("Elasticsearch index : '" + strIndex + "' created for document type : '"
                          + strDocumentType + "'");
              }
              else
              {
                  AppLogService.info("Elasticsearch failed to create index : '" + strIndex + "' !");
              }
  
          }
          catch (IndexAlreadyExistsException e)
          {
              AppLogService.info("Elasticsearch index : '" + strIndex + "' already exists !"  );      
          }
          catch (IOException ex)
          {
              AppLogService.error("Error creating Elasticsearch index", ex);
          }
      }
  
      public static void deleteIndex(Client client, String strIndex)
      {
          DeleteIndexRequestBuilder deleteIndex = client.admin().indices().prepareDelete(strIndex);
          deleteIndex.execute().actionGet();
          AppLogService.info("Elasticsearch index '" + strIndex + "' deleted !");
      }
 
     public static boolean isIndexExist(Client client, String strIndex)
     {
         ActionFuture<IndicesExistsResponse> exists = client.admin().indices()
                 .exists(new IndicesExistsRequest(strIndex));
         IndicesExistsResponse actionGet = exists.actionGet();
 
         return actionGet.isExists();
     }
 }