JDK14LoggerFactory xref

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    1   /**
    2    * Copyright (c) 2004-2011 QOS.ch
    3    * All rights reserved.
    4    *
    5    * Permission is hereby granted, free  of charge, to any person obtaining
    6    * a  copy  of this  software  and  associated  documentation files  (the
    7    * "Software"), to  deal in  the Software without  restriction, including
    8    * without limitation  the rights to  use, copy, modify,  merge, publish,
    9    * distribute,  sublicense, and/or sell  copies of  the Software,  and to
    10   * permit persons to whom the Software  is furnished to do so, subject to
    11   * the following conditions:
    12   *
    13   * The  above  copyright  notice  and  this permission  notice  shall  be
    14   * included in all copies or substantial portions of the Software.
    15   *
    16   * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
    17   * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
    18   * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
    19   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
    20   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    21   * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
    22   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    23   *
    24   */
    25  package org.slf4j.impl;
    26
    27  import org.slf4j.Logger;
    28  import org.slf4j.ILoggerFactory;
    29
    30  import java.util.HashMap;
    31  import java.util.Map;
    32
    33  /**
    34   * JDK14LoggerFactory is an implementation of {@link ILoggerFactory} returning
    35   * the appropriately named {@link JDK14LoggerAdapter} instance.
    36   *
    37   * @author Ceki G&uuml;lc&uuml;
    38   */
    39  public class JDK14LoggerFactory implements ILoggerFactory {
    40
    41    // key: name (String), value: a JDK14LoggerAdapter;
    42    Map loggerMap;
    43
    44    public JDK14LoggerFactory() {
    45      loggerMap = new HashMap();
    46    }
    47
    48    /*
    49     * (non-Javadoc)
    50     *
    51     * @see org.slf4j.ILoggerFactory#getLogger(java.lang.String)
    52     */
    53    public synchronized Logger getLogger(String name) {
    54      Logger ulogger = null;
    55      // protect against concurrent access of loggerMap
    56      synchronized (this) {
    57        // the root logger is called "" in JUL
    58        if(name.equalsIgnoreCase(Logger.ROOT_LOGGER_NAME)) {
    59          name = "";
    60        }
    61        ulogger = (Logger) loggerMap.get(name);
    62        if (ulogger == null) {
    63          java.util.logging.Logger logger = java.util.logging.Logger
    64              .getLogger(name);
    65          ulogger = new JDK14LoggerAdapter(logger);
    66          loggerMap.put(name, ulogger);
    67        }
    68      }
    69      return ulogger;
    70    }
    71  }