1 /*
2 * Copyright 2022 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.bremersee.geojson.converter.deserialization;
18
19 import static java.util.Objects.isNull;
20
21 import java.io.Serial;
22 import java.io.Serializable;
23 import java.math.BigDecimal;
24
25 /**
26 * The object to double converter.
27 *
28 * @author Christian Bremer
29 */
30 class ObjectToDoubleConverter implements Serializable {
31
32 @Serial
33 private static final long serialVersionUID = 1L;
34
35 /**
36 * Convert double.
37 *
38 * @param source the source
39 * @return the double
40 */
41 double convert(Object source) {
42 if (source instanceof Number) {
43 return ((Number) source).doubleValue();
44 }
45 return isNull(source)
46 ? Double.NaN
47 : new BigDecimal(String.valueOf(source)).doubleValue();
48 }
49 }