LogManager xref

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    1   /*
    2    * Copyright 2001-2004 The Apache Software Foundation.
    3    *
    4    * Licensed under the Apache License, Version 2.0 (the "License");
    5    * you may not use this file except in compliance with the License.
    6    * You may obtain a copy of the License at
    7    *
    8    *      http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16
    17  package org.apache.log4j;
    18
    19  import org.apache.log4j.spi.LoggerFactory;
    20
    21  import java.util.Enumeration;
    22  import java.util.Vector;
    23
    24  /**
    25   * <p/>
    26   * This class is a minimal implementation of the original
    27   * <code>org.apache.log4j.LogManager</code> class (as found in log4j 1.2)
    28   * delegating all calls to SLF4J.
    29   * <p/>
    30   * <p/>
    31   * This implementation does <b>NOT</b> implement the setRepositorySelector(),
    32   * getLoggerRepository(), exists(), getCurrentLoggers(), shutdown() and
    33   * resetConfiguration() methods which do not have SLF4J equivalents.
    34   *
    35   * @author Ceki G&uuml;lc&uuml;
    36   */
    37  @SuppressWarnings("rawtypes")
    38  public class LogManager {
    39
    40      public static Logger getRootLogger() {
    41          return Log4jLoggerFactory.getLogger(org.slf4j.Logger.ROOT_LOGGER_NAME);
    42      }
    43
    44      public static Logger getLogger(final String name) {
    45          return Log4jLoggerFactory.getLogger(name);
    46      }
    47
    48      public static Logger getLogger(final Class clazz) {
    49          return Log4jLoggerFactory.getLogger(clazz.getName());
    50      }
    51
    52      /**
    53       * Returns a logger instance created by loggerFactory. This method was requested in
    54       * <a href="http://jira.qos.ch/browse/SLF4J-225">SLF4J-225</a>. Note that
    55       * log4j-over-slf4j does not ship with a LoggerFactory implementation. If this
    56       * method is called, the caller must provide his/her own implementation.
    57       *
    58       * @param name          the name of the desired logger
    59       * @param loggerFactory an instance of {@link LoggerFactory}
    60       * @return returns a logger instance created by loggerFactory
    61       * @since 1.6.6
    62       */
    63      public static Logger getLogger(String name, LoggerFactory loggerFactory) {
    64          return loggerFactory.makeNewLoggerInstance(name);
    65      }
    66
    67      /**
    68       * This bogus implementation returns an empty enumeration.
    69       *
    70       * @return
    71       */
    72      public static Enumeration getCurrentLoggers() {
    73          return new Vector().elements();
    74      }
    75
    76      /**
    77       * Implemented as NOP.
    78       */
    79      public static void shutdown() {
    80      }
    81
    82      /**
    83       * Implemented as NOP.
    84       */
    85      public static void resetConfiguration() {
    86      }
    87  }