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    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.logging.log4j.core.util;
    18
    19  /**
    20   * Boolean helpers.
    21   */
    22  public final class Booleans {
    23
    24      private Booleans() {
    25      }
    26
    27      /**
    28       * Returns {@code true} if {@code s} is {@code "true"} (case-insensitive), {@code false} if {@code s} is
    29       * {@code "false"} (case-insensitive), and {@code defaultValue} if {@code s} is anything else (including null or
    30       * empty).
    31       *
    32       * @param s The {@code String} to parse into a {@code boolean}
    33       * @param defaultValue The default value to use if {@code s} is neither {@code "true"} nor {@code "false"}
    34       * @return the {@code boolean} value represented by the argument, or {@code defaultValue}.
    35       */
    36      public static boolean parseBoolean(final String s, final boolean defaultValue) {
    37          return "true".equalsIgnoreCase(s) || (defaultValue && !"false".equalsIgnoreCase(s));
    38      }
    39
    40  }