at.jku.fim.rubanetra.pcap

Class PcapFilter

java.lang.Object

at.jku.fim.rubanetra.pcap.PcapFilter

public class PcapFilter
extends Object

Represent an intermediary between the native Berkeley Packet Filter compiler and this project external interface. It is intended as a mere encapsulation of required and optional parameters before passing it as raw values to the JNetPcap engine for native compilation. Error/Syntax checks will not be performed by this class.

Constructor Summary

Constructors

Constructor and Description
PcapFilter(String bpfExpression, boolean optimize, int netmask) Default constructor

Method Summary

Modifier and Type	Method and Description
String	getBpfExpression()
int	getNetmask()
boolean	isOptimize() JNetPcap expects an integer value, where 0 is equal to false.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PcapFilter

public PcapFilter(String bpfExpression,
                  boolean optimize,
                  int netmask)

Default constructor

Parameters:

bpfExpression - a Berkeley Packet Filter expression, may be null or empty

optimize - whether or not to try to optimize the provided filter expression.

netmask - an integer representing a network mask that will be applied by the native compiler.

Method Detail

getBpfExpression

public String getBpfExpression()

Returns:

a Berkeley Packet Filter expression, may be null or empty

isOptimize

public boolean isOptimize()

JNetPcap expects an integer value, where 0 is equal to false.

Returns:

whether or not to try to optimize the provided filter expression.

getNetmask

public int getNetmask()

Returns:

an integer representing a network mask that will be applied by the native compiler.