    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *   http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 * Unless required by applicable law or agreed to in writing, software
    012 * distributed under the License is distributed on an "AS IS" BASIS,
    013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 * See the License for the specific language governing permissions and
    015 * limitations under the License.
    016 */
    017package org.apache.commons.compress.utils;
    018
    019import java.io.IOException;
    020
    021/**
    022 * Utility methods for parsing data and converting it to other formats.
    023 *
    024 * @since 1.26.0
    025 */
    026public final class ParsingUtils {
    027    /**
    028     * Parses the provided string value to an Integer, assuming a base-10 radix
    029     *
    030     * @param value string value to parse
    031     * @return parsed value as an int
    032     * @throws IOException when the value cannot be parsed
    033     */
    034    public static int parseIntValue(final String value) throws IOException {
    035        return parseIntValue(value, 10);
    036    }
    037
    038    /**
    039     * Parse the provided string value to an Integer with a provided radix
    040     *
    041     * @param value string value to parse
    042     * @param radix radix value to use for parsing
    043     * @return parsed value as an int
    044     * @throws IOException when the value cannot be parsed
    045     */
    046    public static int parseIntValue(final String value, final int radix) throws IOException {
    047        try {
    048            return Integer.parseInt(value, radix);
    049        } catch (final NumberFormatException exp) {
    050            throw new IOException("Unable to parse int from string value: " + value);
    051        }
    052    }
    053
    054    /**
    055     * Parses the provided string value to a Long, assuming a base-10 radix
    056     *
    057     * @param value string value to parse
    058     * @return parsed value as a long
    059     * @throws IOException when the value cannot be parsed
    060     */
    061    public static long parseLongValue(final String value) throws IOException {
    062        return parseLongValue(value, 10);
    063    }
    064
    065    /**
    066     * Parses the provided string value to a Long with a provided radix
    067     *
    068     * @param value string value to parse
    069     * @param radix radix value to use for parsing
    070     * @return parsed value as a long
    071     * @throws IOException when the value cannot be parsed
    072     */
    073    public static long parseLongValue(final String value, final int radix) throws IOException {
    074        try {
    075            return Long.parseLong(value, radix);
    076        } catch (final NumberFormatException exp) {
    077            throw new IOException("Unable to parse long from string value: " + value);
    078        }
    079    }
    080
    081    private ParsingUtils() {
    082        /* no instances */ }
    083}