org.javamrt.mrt

Class ASPath

java.lang.Object

org.javamrt.mrt.ASPath

All Implemented Interfaces:

Attribute

public class ASPath
extends Object
implements Attribute

ASPath is a linked list of elements which are either
AS, ASSet or ASConfedSet

version 3.00: complete rewrite with ASPathSegment

Version:

3.00

Author:

paag

Field Summary

Fields

Modifier and Type	Field and Description
protected LinkedList<AS>	path

Fields inherited from interface org.javamrt.mrt.Attribute

debug

Method Summary

Modifier and Type	Method and Description
void	add(AS as) alias of append(AS as)
void	append(AS as) Append an AS to the ASPATH
ASPath	canonicalPath() Build a copy of the AS_PATH but without prepends
int	compareTo(ASPath aspath)
boolean	contains(AS as)
boolean	equals(ASPath other) Shortcut for equals(Object o)
boolean	equals(Object o) This is the canonical implementation of the equals() method
AS	generator()
AS	get(int i)
LinkedList<AS>	getPath()
Vector<AS>	getPrependers()
boolean	hasAsPathPrepend()
boolean	hasOriginPrepend()
int	indexOf(AS as)
boolean	isGenerator(AS as)
int	lastIndexOf(AS as)
int	length()
void	mkPrependers()
void	set(int index, AS element)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

path

protected LinkedList<AS> path

Method Detail

get

public AS get(int i)

set

public void set(int index,
                AS element)

append

public void append(AS as)

Append an AS to the ASPATH

Parameters:

as -

add

public void add(AS as)

alias of append(AS as)

Parameters:

as -

getPath

public LinkedList<AS> getPath()

length

public int length()

Returns:

the number of hops of the ASPATH

getPrependers

public Vector<AS> getPrependers()

Returns:

a Vector with the AS's which are doing prepending.

hasAsPathPrepend

public boolean hasAsPathPrepend()

Returns:

mkPrependers

public void mkPrependers()

indexOf

public int indexOf(AS as)

Parameters:

as: - an AS

Returns:

the index of the first occurrence of AS in the ASPATH

lastIndexOf

public int lastIndexOf(AS as)

Parameters:

as: - an AS

Returns:

the index of the last occurrence of AS in the ASPATH

contains

public boolean contains(AS as)

toString

public String toString()

Specified by:

toString in interface Attribute

Overrides:

toString in class Object

Returns:

a textual representation of the ASPATH

equals

public boolean equals(ASPath other)

Shortcut for equals(Object o)

Parameters:

ASPath - other: an other ASPath

Returns:

true if both have the same length and all AS's in them are in the same place.

equals

public boolean equals(Object o)

This is the canonical implementation of the equals() method

Overrides:

equals in class Object

Parameters:

Object - o

isGenerator

public boolean isGenerator(AS as)

Parameters:

as: - as Autonomous System

Returns:

true if as generated the prefix

generator

public AS generator()

Returns:

the As which generated the prefix

canonicalPath

public ASPath canonicalPath()

Build a copy of the AS_PATH but without prepends

Parameters:

none -

hasOriginPrepend

public boolean hasOriginPrepend()

Returns:

true if the originating AS is prepending

compareTo

public int compareTo(ASPath aspath)