1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * https://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.beanutils2.locale.converters;
19
20 import java.math.BigInteger;
21 import java.text.ParseException;
22 import java.util.Locale;
23
24 import org.apache.commons.beanutils2.ConversionException;
25
26 /**
27 * Standard {@link org.apache.commons.beanutils2.locale.LocaleConverter} implementation that converts an incoming locale-sensitive String into a
28 * {@link java.math.BigInteger} object, optionally using a default value or throwing a {@link org.apache.commons.beanutils2.ConversionException} if a conversion
29 * error occurs.
30 */
31 public class BigIntegerLocaleConverter extends DecimalLocaleConverter<BigInteger> {
32
33 /**
34 * Builds instances of {@link BigIntegerLocaleConverter}.
35 */
36 public static class Builder extends DecimalLocaleConverter.Builder<Builder, BigInteger> {
37
38 /**
39 * Constructs a new instance.
40 */
41 public Builder() {
42 // empty
43 }
44
45 @Override
46 public BigIntegerLocaleConverter get() {
47 return new BigIntegerLocaleConverter(defaultValue, locale, pattern, useDefault || defaultValue != null, localizedPattern);
48 }
49
50 }
51
52 /**
53 * Constructs a new builder.
54 *
55 * @return a new builder.
56 */
57 public static Builder builder() {
58 return new Builder();
59 }
60
61 private BigIntegerLocaleConverter(final BigInteger defaultValue, final Locale locale, final String pattern, final boolean useDefault,
62 final boolean locPattern) {
63 super(defaultValue, locale, pattern, useDefault, locPattern);
64 }
65
66 /**
67 * Parses the specified locale-sensitive input object into an output object of BigInteger type.
68 *
69 * @param value The input object to be converted
70 * @param pattern The pattern is used for the conversion
71 * @return The converted value
72 * @throws ConversionException if conversion cannot be performed successfully
73 * @throws ParseException if an error occurs parsing a String to a Number
74 * @since 1.8.0
75 */
76 @Override
77 protected BigInteger parse(final Object value, final String pattern) throws ParseException {
78 final Number result = super.parse(value, pattern);
79
80 if (result == null || result instanceof BigInteger) {
81 return (BigInteger) result;
82 }
83
84 return BigInteger.valueOf(result.longValue());
85 }
86
87 }