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A client library for memcached.
There is a newer version: 2.12.3
/**
 * Copyright (C) 2006-2009 Dustin Sallings
 * Copyright (C) 2009-2013 Couchbase, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALING
 * IN THE SOFTWARE.
 */

package net.spy.memcached.compat.log;

import org.apache.log4j.Logger;

/**
 * Logging implementation using log4j.
 */
public class Log4JLogger extends AbstractLogger {

  // Can't really import this without confusion as there's another thing
  // by this name in here.
  private final Logger l4jLogger;

  /**
   * Get an instance of Log4JLogger.
   */
  public Log4JLogger(String name) {
    super(name);

    // Get the log4j logger instance.
    l4jLogger = Logger.getLogger(name);
  }

  @Override
  public boolean isTraceEnabled() {
    return (l4jLogger.isTraceEnabled());
  }

  @Override
  public boolean isDebugEnabled() {
    return (l4jLogger.isDebugEnabled());
  }

  @Override
  public boolean isInfoEnabled() {
    return (l4jLogger.isInfoEnabled());
  }

  /**
   * Wrapper around log4j.
   *
   * @param level net.spy.compat.log.Level level.
   * @param message object message
   * @param e optional throwable
   */
  @Override
  public void log(Level level, Object message, Throwable e) {
    org.apache.log4j.Level pLevel = org.apache.log4j.Level.DEBUG;

    switch (level == null ? Level.FATAL : level) {
    case TRACE:
      pLevel = org.apache.log4j.Level.TRACE;
      break;
    case DEBUG:
      pLevel = org.apache.log4j.Level.DEBUG;
      break;
    case INFO:
      pLevel = org.apache.log4j.Level.INFO;
      break;
    case WARN:
      pLevel = org.apache.log4j.Level.WARN;
      break;
    case ERROR:
      pLevel = org.apache.log4j.Level.ERROR;
      break;
    case FATAL:
      pLevel = org.apache.log4j.Level.FATAL;
      break;
    default:
      // I don't know what this is, so consider it fatal
      pLevel = org.apache.log4j.Level.FATAL;
      l4jLogger.log("net.spy.compat.log.AbstractLogger", pLevel, "Unhandled "
          + "log level:  " + level + " for the following message", null);
    }
    l4jLogger.log("net.spy.compat.log.AbstractLogger", pLevel, message, e);
  }
}