content: /*
   * 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.carbondata.core.metadata.datatype;
  
  import java.lang.reflect.Type;
  
  import org.apache.carbondata.core.util.DataTypeUtil;
  
  import com.google.gson.JsonDeserializationContext;
  import com.google.gson.JsonDeserializer;
  import com.google.gson.JsonElement;
  import com.google.gson.JsonObject;
  import com.google.gson.JsonParseException;
  
  /**
   * This class will deserialize DataType json string based on name
   */
  public class DataTypeDeserializer implements JsonDeserializer<DataType> {
    @Override
    public DataType deserialize(JsonElement jsonElement, Type type,
        JsonDeserializationContext context) throws JsonParseException {
      JsonObject jsonObject = jsonElement.getAsJsonObject();
      // deserialize dataType object based on dataType name
      JsonElement jsonNameElement = jsonObject.get("name");
      if (null != jsonNameElement) {
        return context
            .deserialize(jsonObject, DataTypeUtil.valueOf(jsonNameElement.getAsString()).getClass());
      }
      return context.deserialize(jsonObject, DataType.class);
    }
  }
  