filter.java

The WLAN Traffic Visualizer is a platform independent Java program providing accurate measurement of

package model;

//Copyright (C) 2008 Harald Unander, Wang Wenjuan
//
//    This file is part of WlanTV.
//
//    WlanTV 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 3 of the License, or
//    (at your option) any later version.
//
//    WlanTV 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 WlanTV.  If not, see <http://www.gnu.org/licenses/>.

import model.Packet.FType;
import model.Transaction.OneTransaction;
import view.ButtonBar;
import view.ComboBar;
import view.ComboBar.DIRECTION;

public class Filter {
	long staVal;
	long apVal;
	int rssiVal;
	int chVal;
	boolean badFcs;
	DIRECTION dirVal;

	public void apply(Transaction transaction, ComboBar comboBar,ButtonBar buttonBar) {
		staVal = comboBar.getStaFilterValue();
		apVal = comboBar.getApFilterValue();
		rssiVal = comboBar.getRssiFilterValue();
		dirVal = comboBar.getDirValue();
		chVal = comboBar.getChannelFilterValue();
		badFcs = buttonBar.getBadfcsValue();

		for (OneTransaction one : transaction.list) {
			one.hide = !filterOne(one,transaction.conversation);
		}
	}

	private boolean filterOne(OneTransaction one,Conversation conv) {
//		System.out.println(Result.getStaList().get(one.STA)+"  "+one.AP+"=="+apVal+"  "+one.STA+"=="+staVal);

//		boolean e1 = Result.getStaList().get(one.STA)!=null;
		boolean e2 = conv.getApList().get(one.AP)!=null;
		boolean e3 = one.packetList.size()==1 && (Transaction.DataGroupCast(one.packetList.get(0)) || Transaction.ManGroupCast(one.packetList.get(0))); 

		boolean on1 = staVal==0 || staVal==one.STA || e2 && e3 && conv.getApList().get(one.AP).STA.contains(staVal);
		boolean on2 = apVal==0 || rssiVal!=0 || apVal==one.AP;
		boolean on3 = rssiVal==0 || apVal!=0 || one.packetList.get(0).rssi>rssiVal;
		boolean on4 = chVal==0 || e2 && conv.getApList().get(one.AP).channel==chVal;
		boolean on5 = badFcs || !one.badFcs;
		
		// special AP plus RSSI filter
		boolean on6 = rssiVal==0 || apVal==0 || apVal==one.AP || one.packetList.get(0).rssi>rssiVal;
		
		boolean on7 = dirVal==DIRECTION.normal || one.unicastPacket==null || one.unicastPacket!=null &&  (!isData(one.unicastPacket) || dirVal==DIRECTION.uplink && isUplink(one.unicastPacket) || dirVal==DIRECTION.downlink && isDownlink(one.unicastPacket));

		return on1 && on2 && on3 && on4 && on5 && on6 && on7;
	}

	private boolean isUplink(Packet p) {
			return (p.wlanToDs==1);
	}

	private boolean isDownlink(Packet p) {
			return (p.wlanFromDs==1);
	}
	
	private boolean isData(Packet p) {
		if (p.fType == FType.DATA || p.fType == FType.Q_DATA)
			return true;
		else
			return false;
	}
}