clientcacheremover.java

这是linux下ssl vpn的实现程序

package com.sslexplorer.vpn.util;

import java.io.File;
import java.util.Vector;
import java.util.Enumeration;

/**
 * Simple class that will track files and remove them when either told to do
 * or upon finalization.
 */
public class ClientCacheRemover {

  static ClientCacheRemover instance;

  Vector files = new Vector();

  public static ClientCacheRemover getInstance() {
    if(instance==null)
      instance = new ClientCacheRemover();

    return instance;
  }

  public void trackFileForRemoval(File f) {
    files.addElement(f);
  }

  public void cleanup() {
    for(Enumeration e = files.elements(); e.hasMoreElements();){
      ((File)e.nextElement()).delete();
    }

    files.removeAllElements();
  }

  protected void finalize() {
    cleanup();
  }
}