    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 *   https://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019package org.apache.commons.compress.utils;
    020
    021import java.io.IOException;
    022
    023/**
    024 * Utility methods for parsing data and converting it to other formats.
    025 *
    026 * @since 1.26.0
    027 */
    028public final class ParsingUtils {
    029    /**
    030     * Parses the provided string value to an Integer, assuming a base-10 radix
    031     *
    032     * @param value string value to parse
    033     * @return parsed value as an int
    034     * @throws IOException when the value cannot be parsed
    035     */
    036    public static int parseIntValue(final String value) throws IOException {
    037        return parseIntValue(value, 10);
    038    }
    039
    040    /**
    041     * Parse the provided string value to an Integer with a provided radix
    042     *
    043     * @param value string value to parse
    044     * @param radix radix value to use for parsing
    045     * @return parsed value as an int
    046     * @throws IOException when the value cannot be parsed
    047     */
    048    public static int parseIntValue(final String value, final int radix) throws IOException {
    049        try {
    050            return Integer.parseInt(value, radix);
    051        } catch (final NumberFormatException exp) {
    052            throw new IOException("Unable to parse int from string value: " + value);
    053        }
    054    }
    055
    056    /**
    057     * Parses the provided string value to a Long, assuming a base-10 radix
    058     *
    059     * @param value string value to parse
    060     * @return parsed value as a long
    061     * @throws IOException when the value cannot be parsed
    062     */
    063    public static long parseLongValue(final String value) throws IOException {
    064        return parseLongValue(value, 10);
    065    }
    066
    067    /**
    068     * Parses the provided string value to a Long with a provided radix
    069     *
    070     * @param value string value to parse
    071     * @param radix radix value to use for parsing
    072     * @return parsed value as a long
    073     * @throws IOException when the value cannot be parsed
    074     */
    075    public static long parseLongValue(final String value, final int radix) throws IOException {
    076        try {
    077            return Long.parseLong(value, radix);
    078        } catch (final NumberFormatException exp) {
    079            throw new IOException("Unable to parse long from string value: " + value);
    080        }
    081    }
    082
    083    private ParsingUtils() {
    084        /* no instances */ }
    085}