1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.commons.compress.utils;
20
21 import java.io.IOException;
22
23 /**
24 * Utility methods for parsing data and converting it to other formats.
25 *
26 * @since 1.26.0
27 */
28 public final class ParsingUtils {
29 /**
30 * Parses the provided string value to an Integer, assuming a base-10 radix
31 *
32 * @param value string value to parse
33 * @return parsed value as an int
34 * @throws IOException when the value cannot be parsed
35 */
36 public static int parseIntValue(final String value) throws IOException {
37 return parseIntValue(value, 10);
38 }
39
40 /**
41 * Parse the provided string value to an Integer with a provided radix
42 *
43 * @param value string value to parse
44 * @param radix radix value to use for parsing
45 * @return parsed value as an int
46 * @throws IOException when the value cannot be parsed
47 */
48 public static int parseIntValue(final String value, final int radix) throws IOException {
49 try {
50 return Integer.parseInt(value, radix);
51 } catch (final NumberFormatException exp) {
52 throw new IOException("Unable to parse int from string value: " + value);
53 }
54 }
55
56 /**
57 * Parses the provided string value to a Long, assuming a base-10 radix
58 *
59 * @param value string value to parse
60 * @return parsed value as a long
61 * @throws IOException when the value cannot be parsed
62 */
63 public static long parseLongValue(final String value) throws IOException {
64 return parseLongValue(value, 10);
65 }
66
67 /**
68 * Parses the provided string value to a Long with a provided radix
69 *
70 * @param value string value to parse
71 * @param radix radix value to use for parsing
72 * @return parsed value as a long
73 * @throws IOException when the value cannot be parsed
74 */
75 public static long parseLongValue(final String value, final int radix) throws IOException {
76 try {
77 return Long.parseLong(value, radix);
78 } catch (final NumberFormatException exp) {
79 throw new IOException("Unable to parse long from string value: " + value);
80 }
81 }
82
83 private ParsingUtils() {
84 /* no instances */ }
85 }