InMemoryMongo for elastic 2

InMemoryMongo.java

public class InMemoryMongo {

  private static final String DATA_PATH = "./target/elasticsearch";
  private Node node;
  private Client client;

  public InMemoryMongo() {
  }

  public InMemoryMongo start() {
    node = NodeBuilder.nodeBuilder()
        //.loadConfigSettings(false)
        .local(true).data(true).settings(Settings.builder()
        .put(ClusterName.SETTING, "loggingTestCluster")
        .put("node.name", "loggingTestNode")
        .put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 1)
        .put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 0)
        .put("discovery.zen.ping.multicast", "false")
        .put(EsExecutors.PROCESSORS, 1) // limit the number of threads created
        .put("http.enabled", false)
        .put("index.store.type", "default")
        .put("gateway.type", "default")
        .put("path.data", DATA_PATH)
        .put("path.home", DATA_PATH)
    ).build();
    node.start();
    client = node.client();
    return this;
  }

  public void stop() {
    if (client != null) {
      client.close();
    }
    if (node != null && !node.isClosed()) {
      node.close();
      FileSystemUtils.deleteRecursivly(Paths.get(DATA_PATH));
    }
  }
}