content: /*
   * Copyright <2019> Amazon.com, Inc. or its affiliates. All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License").
   * You may not use this file except in compliance with the License.
   * A copy of the License is located at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * or in the "license" file accompanying this file. This file 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 com.amazon.opendistroforelasticsearch.jdbc.types;
  
  import java.sql.SQLException;
  import java.util.Map;
  
  public class DoubleType implements TypeHelper<Double> {
  
      public static final DoubleType INSTANCE = new DoubleType();
  
      private DoubleType() {
  
      }
  
      @Override
      public Double fromValue(Object value, Map<String, Object> conversionParams) throws SQLException {
          if (value == null) {
              return (double) 0;
          }
          if (value instanceof Double) {
              return (Double) value;
          } else if (value instanceof String) {
              return asDouble((String) value);
          } else if (value instanceof Number) {
              return asDouble((Number) value);
          } else {
              throw objectConversionException(value);
          }
      }
  
      private Double asDouble(String value) throws SQLException {
          try {
              return Double.valueOf(value);
          } catch (NumberFormatException nfe) {
              throw stringConversionException(value, nfe);
          }
      }
  
      private Double asDouble(Number value) throws SQLException {
          return value.doubleValue();
      }
  
      @Override
      public String getTypeName() {
          return "Double";
      }
  }
  