Package de.uni_kl.cs.discodnc.network

Class Flow

java.lang.Object

de.uni_kl.cs.discodnc.network.Flow

public class Flow
extends java.lang.Object

Class representing flows through the network.

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.String	alias
private ArrivalCurve	arrival_curve	The flow's arrival curve
private int	id	The flow's ID.
static Flow	NULL_FLOW
private Path	path	The link path the flow traverses incl explicit sink

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Flow()
protected	Flow(int id, java.lang.String alias, ArrivalCurve ac, Path path)

Method Summary

Modifier and Type	Method	Description
static Flow	createDummyFlow(java.lang.String alias, ArrivalCurve ac, Path path)	Creates a dummy flow with an arrival curve. All dummy flows share the same id -1.
java.lang.String	getAlias()
ArrivalCurve	getArrivalCurve()
int	getId()
java.util.List<Link>	getLinksOnPath()
Path	getPath()
Link	getPrecedingLink(Server s)
Server	getPrecedingServer(Server s)
java.util.LinkedList<Server>	getServersOnPath()
Server	getSink()
Server	getSource()
Path	getSubPath(Server from, Server to)
Link	getSucceedingLink(Server s)
Server	getSucceedingServer(Server s)
void	setAlias(java.lang.String alias)
boolean	setArrivalCurve(ArrivalCurve arrival_curve)
java.lang.String	toLongString()
java.lang.String	toShortString()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

NULL_FLOW

public static final Flow NULL_FLOW

id

private int id

The flow's ID.

arrival_curve

private ArrivalCurve arrival_curve

The flow's arrival curve

alias

private java.lang.String alias

path

private Path path

The link path the flow traverses incl explicit sink

Constructor Detail

Flow

protected Flow(int id,
               java.lang.String alias,
               ArrivalCurve ac,
               Path path)

Parameters:

id - The flow's id (unique).

alias - The flow's alias (not necessarily unique).

ac - The flow's arrival curve.

path - The link path the flow traverses.

Flow

private Flow()

Method Detail

createDummyFlow

public static Flow createDummyFlow(java.lang.String alias,
                                   ArrivalCurve ac,
                                   Path path)

Creates a dummy flow with an arrival curve.
All dummy flows share the same id -1.

Parameters:

alias - The flow's alias (not necessarily unique).

ac - The flow's arrival curve.

path - The link path the flow traverses.

Returns:

a dummy flow

setArrivalCurve

public boolean setArrivalCurve(ArrivalCurve arrival_curve)

getArrivalCurve

public ArrivalCurve getArrivalCurve()

Returns:

A copy of the arrival curve

getId

public int getId()

getAlias

public java.lang.String getAlias()

setAlias

public void setAlias(java.lang.String alias)

getPath

public Path getPath()

toShortString

public java.lang.String toShortString()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

A string representation of the flow

toLongString

public java.lang.String toLongString()

getSource

public Server getSource()

getSink

public Server getSink()

getServersOnPath

public java.util.LinkedList<Server> getServersOnPath()

getLinksOnPath

public java.util.List<Link> getLinksOnPath()
                                    throws java.lang.Exception

Throws:

java.lang.Exception

getSubPath

public Path getSubPath(Server from,
                       Server to)
                throws java.lang.Exception

Parameters:

from - Source, inclusive.

to - Sink, inclusive.

Returns:

The subpath.

Throws:

java.lang.Exception - No subpath found; most probably an input parameter problem.

getPrecedingLink

public Link getPrecedingLink(Server s)
                      throws java.lang.Exception

Throws:

java.lang.Exception

getSucceedingLink

public Link getSucceedingLink(Server s)
                       throws java.lang.Exception

Throws:

java.lang.Exception

getPrecedingServer

public Server getPrecedingServer(Server s)
                          throws java.lang.Exception

Throws:

java.lang.Exception

getSucceedingServer

public Server getSucceedingServer(Server s)
                           throws java.lang.Exception

Throws:

java.lang.Exception