binaryinputfilter.java

基于人工免疫原理的入侵检测系统框架

/*=================
 * Copyright (C) 2001  Todd Kaplan
 *
 * Lisys is a program that monitors TCP SYN packets to detect network
 * traffic anomalies.
 *
 * Licensed under the GNU General Public License (GPL), version 2 or
 * higher.  Please see the COPYING and PATENT files included with the
 * Lisys distribution, which can be found at:
 *
 *   http://www.cs.unm.edu/~judd/lisys/
 *
 * Also, the current text of the GPL can be found at: 
 *
 *   http://www.gnu.org/copyleft/gpl.html
 * 
 * Note that Lisys has NO WARRANTY!
 *=================*/

package edu.unm.cs.lisys.detection.bif;

import edu.unm.cs.lisys.util.*;
import edu.unm.cs.lisys.detection.bip.*;
import java.util.*;

/**==========
 * BinaryInputFilter.java
 *   An interface for specifying a permutation class for binary input
 *   patterns.
 * 
 * Here are the people who have worked on this code in the order they
 * have worked on it:
 *   @author Todd Kaplan <[e-mail]>
 *   @author Justin Balthrop <[e-mail]>
 *==========*/

public interface BinaryInputFilter
{
    /**==========
     * constructFilter:
     *   Given a random number and a length, construct a class to do *
     *   some sort of permutation on a BIP.
     *
     * @param random a radnom number generator
     * @param length the length of the BIPs to be filtered
     *==========*/
    public BinaryInputFilter constructFilter(KnuthRandom random, int length);

    /**==========
     * filter:
     *   Does the filtering.
     * 
     * @param bip the bip to be filtered
     *==========*/
    public BinaryInputPattern filter(BinaryInputPattern bip);
    
    /**==========
     * toString:
     *   The string representation
     *==========*/
    public String toString();
}