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.library.elasticsearch.requests.factory.v7plus.codec;
  
  import com.fasterxml.jackson.core.JsonParser;
  import com.fasterxml.jackson.core.type.TypeReference;
  import com.fasterxml.jackson.databind.DeserializationContext;
  import com.fasterxml.jackson.databind.JsonDeserializer;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.HashSet;
  import java.util.Map;
  import org.apache.skywalking.library.elasticsearch.response.Mappings;
  
  final class V7MappingsDeserializer extends JsonDeserializer<Mappings> {
      @Override
      @SuppressWarnings("unchecked")
      public Mappings deserialize(final JsonParser p, final DeserializationContext ctxt)
          throws IOException {
  
          final Map<String, Object> m =
              p.getCodec().readValue(p, new TypeReference<Map<String, Object>>() {
              });
  
          if (m.size() > 0) {
              Map<String, Object> properties = (Map<String, Object>) m.get("properties");
              Map<String, Object> source = (Map<String, Object>) m.get("_source");
              final Mappings mappings = new Mappings();
              mappings.setType("_doc");
              if (properties != null) {
                  mappings.setProperties(properties);
              }
              if (source != null) {
                  Object excludes = source.get("excludes");
                  if (excludes != null) {
                      mappings.getSource().setExcludes(new HashSet<>((ArrayList<String>) excludes));
                  }
              }
              return mappings;
          }
          return null;
      }
  }
  