SortedProperties.java

/*
 * Copyright (c) 2010 SimpleServer authors (see CONTRIBUTORS)
 *
 * 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 DEALINGS IN
 * THE SOFTWARE.
 */
package simpleserver.config;

import java.util.Collections;
import java.util.Enumeration;
import java.util.Properties;
import java.util.Vector;

public class SortedProperties extends Properties {
  private static final long serialVersionUID = 2327114648488311204L;

  @Override
  @SuppressWarnings({ "unchecked", "rawtypes" })
  public synchronized Enumeration<Object> keys() {
    Enumeration<Object> keysEnum = super.keys();
    Vector keyList = new Vector();
    while (keysEnum.hasMoreElements()) {
      keyList.add(keysEnum.nextElement());
    }
    Collections.sort(keyList);
    return keyList.elements();
  }
}