pluginconfig.java

The Javatm Telnet Application/Applet 很好用的

/*
 * This file is part of "The Java Telnet Application".
 *
 * (c) Matthias L. Jugel, Marcus Mei遪er 1996-2002. All Rights Reserved.
 *
 * Please visit http://javatelnet.org/ for updates and contact.
 *
 * --LICENSE NOTICE--
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 * --LICENSE NOTICE--
 *
 */
package de.mud.jta;

import java.util.Properties;

/**
 * Plugin configuration container. This class extends the Properties
 * to allow specific duplications of plugins. To get the value of a
 * property for a plugin simply call getProperty() with the plugin name,
 * the unique id (which may be null) and the key you look for. A fallback
 * value will be returned if it exists.
 * <P>
 * <B>Maintainer:</B> Matthias L. Jugel
 *
 * @version $Id: PluginConfig.java,v 2.5 2002/05/06 07:24:20 leo Exp $
 * @author Matthias L. Jugel, Marcus Mei遪er
 */
public class PluginConfig extends Properties {

  public PluginConfig(Properties props) {
    super(props);
  }

  /**
   * Get property value for a certain plugin with the specified id.
   * This method will return the default value if no value for the specified
   * id exists.
   * @param plugin the plugin to get the setup for
   * @param id plugin id as specified in the config file
   * @param key the property key to search for
   * @return the property value or null
   */
  public String getProperty(String plugin, String id, String key) {
    if(id == null) id = ""; else id = "("+id+")";
    String result = getProperty(plugin+id, key);
    if(result == null)
      result = getProperty(plugin, key);
    return result;
  }

  /**
   * Get the property value for a certain plugin.
   * @param plugin the plugin to get setup for
   * @param key the property key to search for
   */
  public String getProperty(String plugin, String key) {
    return getProperty(plugin+"."+key);
  }

  /**
   * Set the property value for a certain plugin and id.
   * @param plugin the name of the plugin
   * @param id the unique id of the plugin
   * @param key the property key
   * @param value the new value
   */

  public void setProperty(String plugin, String id, String key, String value) {
    if(id == null) id = ""; else id = "("+id+")";
    setProperty(plugin+id, key, value);
  }

  /**
   * Set the property value for a certain plugin.
   * @param plugin the name of the plugin
   * @param key the property key
   * @param value the new value
   */
  public void setProperty(String plugin, String key, String value) {
    setProperty(plugin+"."+key, value);
  }

}