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/*
* Wireless Host Monitor
*
* Copyright (C) 2003, Jonathan Sevy <jsevy@mcs.drexel.edu>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
package airporthostmon;
import java.io.*;
import java.util.*;
public class HostInfoLogger
implements HostInfoChangeListener
{
String logFile;
int logMode;
public HostInfoLogger(String logFile, int logMode)
{
this.logFile = logFile;
this.logMode = logMode;
}
// do whatever in response to a change in the retrieved info
public void processHostInfoChange(HostInfoTreeMap oldInfo, HostInfoTreeMap newInfo)
throws HostInfoChangeException
{
try
{
switch (logMode)
{
case Preferences2.LOG_ALL:
case Preferences2.LOG_UNKNOWN:
{
// log any hosts that are in the new info and not in the old
// open file for writing; will throw exception if problem with that...
FileWriter fileWriter = new FileWriter(logFile, true /*append*/);
Iterator iterator = newInfo.keySet().iterator();
while(iterator.hasNext())
{
Object key = iterator.next();
//System.out.println("Processing key " + key);
if (oldInfo.containsKey(key))
{
// we already know about this guy; continue
//System.out.println("Got this host already");
continue;
}
// a new arrival; get info
HostInfo newHostInfo = (HostInfo)newInfo.get(key);
// if log mode is LOG_UNKNOWN, log only hosts that are unknown
if ((logMode == Preferences2.LOG_UNKNOWN) && (newHostInfo.known == true))
{
// we know this guy; continue
//System.out.println("Known host");
continue;
}
//System.out.println("Writing new info");
// write info out to file
String hostInfoString = (new Date()).toString();
if (newHostInfo.known == true)
hostInfoString += ": " + newHostInfo.name + ", MAC address " + newHostInfo.macAddress;
else
hostInfoString += ": Unknown host, MAC address " + newHostInfo.macAddress;
hostInfoString += ", IP address " + newHostInfo.ipAddress;
if (newHostInfo.timeAssociated < 0)
hostInfoString += ", time associated unknown\n";
else
hostInfoString += ", time associated " + newHostInfo.timeAssociated + ".\n";
fileWriter.write(hostInfoString);
}
fileWriter.flush();
fileWriter.close();
break;
}
case Preferences2.LOG_NONE:
default:
{
// pretty boring choice, n'est-ce pas?
break;
}
}
}
catch (Exception e)
{
throw new HostInfoChangeException(e.toString());
}
}
public void setLogFile(String logFile)
{
this.logFile = logFile;
}
public void setLogMode(int logMode)
{
this.logMode = logMode;
}
}
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