initlogger.java

一个javabean的转换与copy非常的好用希望大家好好研究一下

/*
 * Copyright 2005-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.sf.dozer.util.mapping.util;

import org.apache.log4j.Logger;


/**
 * This class is a thin wrapper for logging one time dozer initialization messages.  These messages will be written
 * to system.out as well as log.info.  To turn off sys.out's:  -Ddozer.debug=false
 * 
 * @author tierney.matt
 */
public class InitLogger {
  private static boolean debugEnabled = false;
  
  static {
    String sysProp = System.getProperty(MapperConstants.DEBUG_SYS_PROP);
    if (sysProp != null && !sysProp.trim().equals("false")) {
      debugEnabled = true;
    }
  }
  
  private InitLogger() {}

  public static void log(Logger log, String msg) {
    if (debugEnabled) {
      System.out.println("dozer:  " + msg);
    }
    log.info(msg);
  }
}