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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
    18  package org.apache.log4j.spi;
    19
    20  import org.apache.log4j.Level;
    21  import org.apache.log4j.Logger;
    22  import org.apache.log4j.helpers.LogLog;
    23
    24  // Contibutors: Mathias Bogaert
    25
    26  /**
    27   * @deprecated Replaced by {@link RootLogger}.
    28   */
    29  final public class RootCategory extends Logger {
    30
    31    /**
    32       The root category names itself as "root". However, the root
    33       category cannot be retrieved by name.
    34    */
    35    public
    36    RootCategory(Level level) {
    37      super("root");
    38      setLevel(level);
    39    }
    40
    41
    42    /**
    43       Return the assigned level value without walking the category
    44       hierarchy.
    45    */
    46    final
    47    public
    48    Level getChainedLevel() {
    49      return level;
    50    }
    51
    52    /**
    53       Setting a null value to the level of the root category may have catastrophic
    54       results. We prevent this here.
    55
    56       @since 0.8.3 */
    57    final
    58    public
    59    void setLevel(Level level) {
    60      if(level == null) {
    61        LogLog.error("You have tried to set a null level to root.",
    62  		   new Throwable());
    63      }
    64      else {
    65        this.level = level;
    66      }
    67    }
    68
    69    final
    70    public
    71    void setPriority(Level level) {
    72      setLevel(level);
    73    }
    74
    75
    76  }