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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.logging.log4j.jul;
    19
    20  import java.util.logging.Level;
    21  import java.util.logging.Logger;
    22
    23  /**
    24   * Log4j Core implementation of the JUL {@link Logger} class. <strong>Note that this implementation does
    25   * <em>not</em> use the {@link java.util.logging.Handler} class.</strong> Instead, logging is delegated to the
    26   * underlying Log4j {@link org.apache.logging.log4j.core.Logger} which uses
    27   * {@link org.apache.logging.log4j.core.Appender Appenders} instead.
    28   *
    29   * @since 2.1
    30   */
    31  public class CoreLogger extends ApiLogger {
    32
    33      private final org.apache.logging.log4j.core.Logger logger;
    34
    35      /**
    36       * Constructs a Logger using a Log4j {@link org.apache.logging.log4j.core.Logger}.
    37       *
    38       * @param logger the underlying Logger to base this Logger on
    39       */
    40      CoreLogger(final org.apache.logging.log4j.core.Logger logger) {
    41          super(logger);
    42          this.logger = logger;
    43      }
    44
    45      @Override
    46      public void setLevel(final Level level) throws SecurityException {
    47          logger.setLevel(LevelTranslator.toLevel(level));
    48          super.doSetLevel(level);
    49      }
    50
    51      /**
    52       * Marks the underlying {@link org.apache.logging.log4j.core.Logger} as additive.
    53       *
    54       * @param additive {@code true} if this Logger should be additive
    55       * @see org.apache.logging.log4j.core.Logger#setAdditive(boolean)
    56       */
    57      @Override
    58      public synchronized void setUseParentHandlers(final boolean additive) {
    59          logger.setAdditive(additive);
    60      }
    61
    62      /**
    63       * Indicates if the underlying {@link org.apache.logging.log4j.core.Logger} is additive. <strong>Note that the
    64       * Log4j version of JDK Loggers do <em>not</em> use Handlers.</strong>
    65       *
    66       * @return {@code true} if this Logger is additive, or {@code false} otherwise
    67       * @see org.apache.logging.log4j.core.Logger#isAdditive()
    68       */
    69      @Override
    70      public synchronized boolean getUseParentHandlers() {
    71          return logger.isAdditive();
    72      }
    73
    74      @Override
    75      public Logger getParent() {
    76          final org.apache.logging.log4j.core.Logger parent = logger.getParent();
    77          return parent == null ? null : Logger.getLogger(parent.getName());
    78      }
    79  }