orca.cod.net
Class IPList

java.lang.Object
  orca.cod.net.IPList

All Implemented Interfaces:

IInitialize

public class IPList
extends java.lang.Object
implements IInitialize

Simple allocator that stores a table of free and used IP addresses This may be used when IP address space is scarce and an entire SubnetBlock cannot be carved. It should be used on a per-site basis as opposed to per-Slice The allocate, release and reserve methods are synchronized because currently multiple slices can pull from and add to this list. In the future a policy for arbitrating sparse public IP address space could fix this, giving each slice its own space instead of sharing the same space.

Field Summary

static java.lang.String	PropertyFreeList
static java.lang.String	PropertyTotal
static java.lang.String	PropertyUsedList

Constructor Summary

IPList()
Instantiate new Vectors for allocation of sparce IPs.

Method Summary

java.net.InetAddress	allocate() Allocate an IP address.
void	initialize() Instantiate new Vectors for allocation of sparce IPs.
boolean	inList(java.net.InetAddress i)
void	release(java.net.InetAddress i) Release an ip address.
void	reserve(java.net.InetAddress i) Indicate that an IP is reserved.
void	reset(java.lang.String s)
java.lang.String	save()

Methods inherited from class java.lang.Object

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

Field Detail

PropertyTotal

public static java.lang.String PropertyTotal

PropertyFreeList

public static java.lang.String PropertyFreeList

PropertyUsedList

public static java.lang.String PropertyUsedList

Constructor Detail

IPList

public IPList()
       throws java.lang.Exception

Instantiate new Vectors for allocation of sparce IPs.

Parameters:

total - All possible IP addresses to allocate from

Throws:

java.lang.Exception

Method Detail

initialize

public void initialize()

Instantiate new Vectors for allocation of sparce IPs.

Specified by:

initialize in interface IInitialize

Parameters:

total - All possible IP addresses to allocate from

allocate

public java.net.InetAddress allocate()
                              throws java.lang.Exception

Allocate an IP address.

Returns:

IP address allocated.

Throws:

java.lang.Exception - if no free ip address.

release

public void release(java.net.InetAddress i)
             throws java.lang.Exception

Release an ip address.

Parameters:

IP - to release

Throws:

java.lang.Exception - if not being used

reserve

public void reserve(java.net.InetAddress i)
             throws java.lang.Exception

Indicate that an IP is reserved. For use in recovery.

Parameters:

IP - to be reserved

Throws:

java.lang.Exception

inList

public boolean inList(java.net.InetAddress i)

save

public java.lang.String save()
                      throws java.lang.Exception

Throws:

java.lang.Exception

reset

public void reset(java.lang.String s)
           throws java.lang.Exception

Throws:

java.lang.Exception