@Override
  public boolean tableExists(String database, String table) {
    try {
      loadTableLocation(database, table);
      return true;
    } catch (NoSuchTableException e) {
      return false;
    }
  }
Hudi catalog implement in hadoop filesystem.
amoro-format-hudi/src/main/java/org/apache/amoro/formats/hudi/HudiHadoopCatalog.java