content: package com.alibaba.otter.canal.client.adapter.es7x.test;
  
  import java.net.UnknownHostException;
  import java.util.HashMap;
  import java.util.Map;
  
  import org.elasticsearch.cluster.metadata.MappingMetaData;
  import org.junit.Before;
  import org.junit.Ignore;
  import org.junit.Test;
  import org.springframework.util.Assert;
  
  import com.alibaba.otter.canal.client.adapter.es7x.support.ESConnection;
  
  @Ignore
  public class ESConnectionTest {
  
      ESConnection esConnection;
  
      @Before
      public void init() throws UnknownHostException {
          String[] hosts = new String[] { "127.0.0.1:9200" };
          Map<String, String> properties = new HashMap<>();
          properties.put("cluster.name", "elasticsearch");
          esConnection = new ESConnection(hosts, properties, ESConnection.ESClientMode.REST);
      }
  
      @Test
      public void test01() {
          MappingMetaData mappingMetaData = esConnection.getMapping("mytest_user");
  
          Map<String, Object> sourceMap = mappingMetaData.getSourceAsMap();
          Map<String, Object> esMapping = (Map<String, Object>) sourceMap.get("properties");
          for (Map.Entry<String, Object> entry : esMapping.entrySet()) {
              Map<String, Object> value = (Map<String, Object>) entry.getValue();
              if (value.containsKey("properties")) {
                  System.out.println(entry.getKey() + " object");
              } else {
                  System.out.println(entry.getKey() + " " + value.get("type"));
                  Assert.notNull(entry.getKey(), "null column name");
                  Assert.notNull(value.get("type"), "null column type");
              }
          }
      }
  }
  