package com.laoer.bbscs.bean;

import com.laoer.bbscs.bean.*;
import com.laoer.bbscs.sys.*;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * <p>Title: TianYi BBS</p>
 * <p>Description: TianYi BBS System</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: LAOER.COM/TIANYISOFT.NET</p>
 * @author laoer
 * @version 6.0
 */

public class GuestBookFactory {

  private static final Log logger = LogFactory.getLog(GuestBookFactory.class);

  public GuestBookFactory() {
  }

  /**
   * Get instance of GuestBook PO
   * @param userId long
   * @return GuestBook
   */
  public synchronized static GuestBook getInstance(long userId) {
    try {
      return (GuestBook) Class.forName(SysUtil.getClassName("GuestBook", userId)).
          newInstance();
    }
    catch (ClassNotFoundException ex) {
      logger.error(ex);
      return null;
    }
    catch (IllegalAccessException ex) {
      logger.error(ex);
      return null;
    }
    catch (InstantiationException ex) {
      logger.error(ex);
      return null;
    }
  }

}