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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.util.*;
import java.math.*;
import snmp.*;
public class HostInfoTreeMap extends TreeMap
{
public static final String UNKNOWN_HOST_NAME = "*****Unknown host*****";
public HostInfoTreeMap()
{
// create empty Hashtable
super();
}
public HostInfoTreeMap(SNMPVarBindList varBindList)
{
// create and populate Hashtable of HostInfo objects
super();
for (int i = 0; i < varBindList.size(); i += 2)
{
SNMPSequence variablePair = (SNMPSequence)varBindList.getSNMPObjectAt(i);
SNMPObjectIdentifier snmpOID = (SNMPObjectIdentifier)variablePair.getSNMPObjectAt(0);
SNMPOctetString snmpMacAddress = (SNMPOctetString)variablePair.getSNMPObjectAt(1);
MacAddress macAddress = new MacAddress((byte[])snmpMacAddress.getValue());
if ( (i+1) >= varBindList.size() )
break;
variablePair = (SNMPSequence)varBindList.getSNMPObjectAt(i+1);
snmpOID = (SNMPObjectIdentifier)variablePair.getSNMPObjectAt(0);
SNMPInteger snmpValue = (SNMPInteger)variablePair.getSNMPObjectAt(1);
BigInteger timeAssociatedObject = (BigInteger)snmpValue.getValue();
int timeAssociated = timeAssociatedObject.intValue();
HostInfo hostInfo = new HostInfo();
hostInfo.macAddress = macAddress;
hostInfo.timeAssociated = timeAssociated;
// add new HostInfo object to hashtable
this.put(macAddress, hostInfo);
}
}
public HostInfoTreeMap(TreeMap hostInfoTreeMap)
{
// create and populate Hashtable of HostInfo objects, using supplied tree map
super(hostInfoTreeMap);
}
public void setMACAddresses(ArpInfoTreeMap arpInfoTreeMap)
{
// for each entry in the hostInfoMap, find its corresponding MAC address in the arpInfoMap
Iterator iterator = this.values().iterator();
while (iterator.hasNext())
{
HostInfo hostInfo = (HostInfo)iterator.next();
// find ArpInfo object corresponding to IP address
ArpInfo arpInfo = (ArpInfo)arpInfoTreeMap.get(hostInfo.ipAddress);
if (arpInfo != null)
{
hostInfo.macAddress = arpInfo.macAddress;
}
else
{
// no ARP entry; assume this is a spurious port map, and drop it
iterator.remove();
//byte[] nullAddress = {0,0,0,0,0,0};
//hostInfo.macAddress = new MacAddress(nullAddress);
}
}
}
public void setIPAddresses(RarpInfoTreeMap rarpInfoTreeMap)
{
// for each entry in the hostInfoMap, find its corresponding MAC address in the arpInfoMap
Iterator iterator = this.values().iterator();
while (iterator.hasNext())
{
HostInfo hostInfo = (HostInfo)iterator.next();
// find ArpInfo object corresponding to MAC address
ArpInfo arpInfo = (ArpInfo)rarpInfoTreeMap.get(hostInfo.macAddress);
if (arpInfo != null)
{
hostInfo.ipAddress = arpInfo.ipAddress;
}
else
{
// no IP address known; call it unknown
hostInfo.ipAddress = "unknown";
}
}
}
public void setHostNames(TreeMap knownHostTreeMap)
{
// for each entry in the hostInfoMap, find its corresponding name in the knownHostTreeMap
Iterator iterator = this.values().iterator();
while (iterator.hasNext())
{
HostInfo hostInfo = (HostInfo)iterator.next();
// find ArpInfo object corresponding to MAC address
KnownHostInfo knownHostInfo = (KnownHostInfo)knownHostTreeMap.get(hostInfo.macAddress);
if (knownHostInfo != null)
{
hostInfo.name = knownHostInfo.name;
hostInfo.known = true;
}
else
{
hostInfo.name = UNKNOWN_HOST_NAME;
hostInfo.known = false;
}
}
}
public String toString()
{
String returnValue = new String();
Iterator iterator = this.values().iterator();
while (iterator.hasNext())
{
HostInfo hostInfo = (HostInfo)iterator.next();
returnValue += hostInfo.toString() + "\n";
}
return returnValue;
}
}
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