    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     */
    017    package org.apache.logging.log4j.core.util;
    018
    019    /**
    020     * Boolean helpers.
    021     */
    022    public final class Booleans {
    023
    024        private Booleans() {
    025        }
    026
    027        /**
    028         * Returns {@code true} if {@code s} is {@code "true"} (case-insensitive), {@code false} if {@code s} is
    029         * {@code "false"} (case-insensitive), and {@code defaultValue} if {@code s} is anything else (including null or
    030         * empty).
    031         *
    032         * @param s The {@code String} to parse into a {@code boolean}
    033         * @param defaultValue The default value to use if {@code s} is neither {@code "true"} nor {@code "false"}
    034         * @return the {@code boolean} value represented by the argument, or {@code defaultValue}.
    035         */
    036        public static boolean parseBoolean(final String s, final boolean defaultValue) {
    037            return "true".equalsIgnoreCase(s) || (defaultValue && !"false".equalsIgnoreCase(s));
    038        }
    039
    040    }