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 * http://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 package org.apache.commons.compress.utils;
18
19 import java.io.IOException;
20
21 /**
22 * Utility methods for parsing data and converting it to other formats.
23 *
24 * @since 1.26.0
25 */
26 public final class ParsingUtils {
27 /**
28 * Parses the provided string value to an Integer, assuming a base-10 radix
29 *
30 * @param value string value to parse
31 * @return parsed value as an int
32 * @throws IOException when the value cannot be parsed
33 */
34 public static int parseIntValue(final String value) throws IOException {
35 return parseIntValue(value, 10);
36 }
37
38 /**
39 * Parse the provided string value to an Integer with a provided radix
40 *
41 * @param value string value to parse
42 * @param radix radix value to use for parsing
43 * @return parsed value as an int
44 * @throws IOException when the value cannot be parsed
45 */
46 public static int parseIntValue(final String value, final int radix) throws IOException {
47 try {
48 return Integer.parseInt(value, radix);
49 } catch (final NumberFormatException exp) {
50 throw new IOException("Unable to parse int from string value: " + value);
51 }
52 }
53
54 /**
55 * Parses the provided string value to a Long, assuming a base-10 radix
56 *
57 * @param value string value to parse
58 * @return parsed value as a long
59 * @throws IOException when the value cannot be parsed
60 */
61 public static long parseLongValue(final String value) throws IOException {
62 return parseLongValue(value, 10);
63 }
64
65 /**
66 * Parses the provided string value to a Long with a provided radix
67 *
68 * @param value string value to parse
69 * @param radix radix value to use for parsing
70 * @return parsed value as a long
71 * @throws IOException when the value cannot be parsed
72 */
73 public static long parseLongValue(final String value, final int radix) throws IOException {
74 try {
75 return Long.parseLong(value, radix);
76 } catch (final NumberFormatException exp) {
77 throw new IOException("Unable to parse long from string value: " + value);
78 }
79 }
80
81 private ParsingUtils() {
82 /* no instances */ }
83 }