Elasticsearch Java API – Get Index Type List Mapping

Elasticsearch Java API - Get Index Type List Mapping

Elasticsearch Java API – Get Index Type List Mapping

The following is sample Java program to get the list of indices with corresponding type in an Elasticsearch instance.

Sample Program:

package com.report.test;
import java.io.IOException;
import java.net.Socket;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import org.elasticsearch.action.admin.cluster.state.ClusterStateResponse;
import org.elasticsearch.action.admin.indices.mapping.get.GetMappingsRequest;
import org.elasticsearch.action.admin.indices.mapping.get.GetMappingsResponse;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.metadata.AliasMetaData;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MappingMetaData;
import org.elasticsearch.common.collect.ImmutableOpenMap;

public class SampleProgram{
     public static void main(String[] args) {
          String hostname = "localhost";
          String clusterName = "elasticsearch";

          Settings settings = ImmutableSettings.settingsBuilder().put("client.transport.sniff", true).put("cluster.name", clusterName).build();
          Client esclient = new TransportClient(settings).addTransportAddress(new InetSocketTransportAddress(hostname, 9300));

          Map<String, List<String>> indexTypeMapping = new HashMap<String, List<String>>();
          List<String> typeList = null;

          ImmutableOpenMap<String, ImmutableOpenMap<String, MappingMetaData>> f = esclient.admin().indices().getMappings(new GetMappingsRequest()).actionGet().getMappings();

          Object[] indexList = f.keys().toArray();
          for (Object indexObj : indexList) {
               String index = indexObj.toString();
               ImmutableOpenMap<String, MappingMetaData> mapping = f.get(index);
               typeList = new ArrayList<String>();
               for (ObjectObjectCursor<String, MappingMetaData> c : mapping) {
                    typeList.add(c.key);
               }
               indexTypeMapping.put(index, typeList);
           }

           System.out.println("Index Type Mapping: (Java Map)");
           System.out.println(indexTypeMapping);
     } 
}

Sample Output:

Index Type Mapping: (Java Map)
{
      "index1":["type1","type2"],
      "index2":["type2","type4"]
}

Related Links: 

Web Application for Elasticsearch :
  1. ElasticTab – Elasticsearch to Excel Report (Web Application)
Elasticsearch Plugin:
  1. Elasticsearch Plugin To Generate (Save and E-Mail) Excel Reports
Elasticsearch:
  1. Execute Multiple Search Query in Elasticsearch
  2. Monitor Elasticsearch Servers with Shell Script - E-Mail Notification
  3. Execute Raw Elasticsearch Query using Transport Client – Java API
  4. Elasticsearch – Apply Nested Filter on Nested (Inner) Aggregation
  5. Execute Multiple Search Query in Elasticsearch
  6. Enable CORS to Send Cross Domain Request to Elasticsearch using AJAX
  7. Elasticsearch Java API – Get Index List
  8. Elasticsearch Java API – Get Alias List
  9. Elasticsearch Java API - Get Type List from given Index
  10. Elasticsearch Java API – Get Field List for a given Index and Type
  11. Elasticsearch Java API – Get Index Type List Mapping
  12. Elasticsearch – Use Script Filter/Conditon in Aggregation/Sub-Aggreagtion
  13. Elasticsearch – Compare/ScriptFilter/Condition on Two Fields using Script Filter – REST Query + Java API
  14. Elasticsearch - Date/Time(String)  Add/Subtract Duration - Days,Months,Years,Hours,Minutes,Seconds
Logstash:
  1. Logstash – Process Log File Once and Exit/Stop Logstash After Reading Log File Once
  2. Measure Logstash Performance using Metrics Filter – Issue/Error in Syntax (Unknown setting ‘message’ for stdout)
  3. Logstash – Process Same Log File (File Input) from Beginning/Start
  4. Create Custom Filter/Plugin to Emit New Events Manually in Logstash
Logstash and Elasticsearch:
  1. Query Elasticsearch Cluster in Filter Section when using Logstash
  2. Custom Elasticsearch Index Name/Type Name based on Events in Logstash
MongoDB and Elasticsearch:
  1. Import Data from Mongo DB to Elasticsearch using Elasticsearch River
 Read More...

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