code: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   */
  
  package org.apache.skywalking.oap.server.storage.plugin.elasticsearch.base;
  
  import com.google.gson.JsonObject;
  import java.lang.reflect.ParameterizedType;
  import java.lang.reflect.Type;
  import java.util.List;
  import org.apache.skywalking.oap.server.core.analysis.Layer;
  import org.apache.skywalking.oap.server.core.storage.model.ElasticSearchExtension;
  import org.apache.skywalking.oap.server.core.storage.type.StorageDataComplexObject;
  
  public class ColumnTypeEsMapping {
  
      public String transform(Class<?> type, Type genericType, final ElasticSearchExtension elasticSearchExtension) {
          if (Integer.class.equals(type) || int.class.equals(type) || Layer.class.equals(type)) {
              return "integer";
          } else if (Long.class.equals(type) || long.class.equals(type)) {
              return "long";
          } else if (Double.class.equals(type) || double.class.equals(type)) {
              return "double";
          } else if (String.class.equals(type) || elasticSearchExtension.isKeyword()) {
              return "keyword";
          } else if (StorageDataComplexObject.class.isAssignableFrom(type)) {
              return "text";
          } else if (byte[].class.equals(type)) {
              return "binary";
          } else if (JsonObject.class.equals(type)) {
              return "text";
          } else if (List.class.isAssignableFrom(type)) {
              final Type elementType = ((ParameterizedType) genericType).getActualTypeArguments()[0];
              return transform((Class<?>) elementType, elementType, elasticSearchExtension);
          } else {
              throw new IllegalArgumentException("Unsupported data type: " + type.getName());
          }
      }
  }
  