org.mpisws.p2p.transport.rendezvous
Class EphemeralDBImpl<Identifier,HighIdentifier>

java.lang.Object
  org.mpisws.p2p.transport.rendezvous.EphemeralDBImpl<Identifier,HighIdentifier>

All Implemented Interfaces:

EphemeralDB<Identifier,HighIdentifier>

public class EphemeralDBImpl<Identifier,HighIdentifier>
extends java.lang.Object
implements EphemeralDB<Identifier,HighIdentifier>

Field Summary

protected java.util.Map<Identifier,java.lang.Long>	ephemeralToTag
protected java.util.Map<HighIdentifier,java.lang.Long>	highToTag
protected long	nextTag
protected long	STALE_PORT_TIME Time where a NAT will have reset the port to a new forwarding in millis Default 2 hours
protected java.util.Map<java.lang.Long,MutableTuple<Identifier,java.lang.Long>>	tagToEphemeral maps tag to ephemeral and timestamp

Fields inherited from interface org.mpisws.p2p.transport.rendezvous.EphemeralDB

NO_TAG

Constructor Summary

EphemeralDBImpl(Environment env, long stalePortTime)

Method Summary

protected void	clear(long tag)
Identifier	getEphemeral(HighIdentifier high) Get the valid Identifier for this highIdentifier
Identifier	getEphemeral(long tag, Identifier i) Return a current valid Identifier for the tag, otherwise, return the default identifier only a getter
long	getTagForEphemeral(Identifier addr) Get the existing tag, or make a new one if needed
void	mapHighToTag(HighIdentifier high, long tag) Tell the DB that the high identifier points to this tag

Methods inherited from class java.lang.Object

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

Field Detail

STALE_PORT_TIME

protected long STALE_PORT_TIME

Time where a NAT will have reset the port to a new forwarding in millis Default 2 hours

nextTag

protected long nextTag

highToTag

protected java.util.Map<HighIdentifier,java.lang.Long> highToTag

ephemeralToTag

protected java.util.Map<Identifier,java.lang.Long> ephemeralToTag

tagToEphemeral

protected java.util.Map<java.lang.Long,MutableTuple<Identifier,java.lang.Long>> tagToEphemeral

maps tag to ephemeral and timestamp

Constructor Detail

EphemeralDBImpl

public EphemeralDBImpl(Environment env,
                       long stalePortTime)

Parameters:

env -

stalePortTime - how long until we should forget about the port binding

Method Detail

mapHighToTag

public void mapHighToTag(HighIdentifier high,
                         long tag)

Tell the DB that the high identifier points to this tag

Specified by:

mapHighToTag in interface EphemeralDB<Identifier,HighIdentifier>

Parameters:

high -

tag -

getEphemeral

public Identifier getEphemeral(HighIdentifier high)

Description copied from interface: EphemeralDB

Get the valid Identifier for this highIdentifier

Specified by:

getEphemeral in interface EphemeralDB<Identifier,HighIdentifier>

Returns:

null if there isn't a valid one

getEphemeral

public Identifier getEphemeral(long tag,
                               Identifier i)

Description copied from interface: EphemeralDB

Return a current valid Identifier for the tag, otherwise, return the default identifier only a getter

Specified by:

getEphemeral in interface EphemeralDB<Identifier,HighIdentifier>

i - the default identifier

Returns:

getTagForEphemeral

public long getTagForEphemeral(Identifier addr)

Description copied from interface: EphemeralDB

Get the existing tag, or make a new one if needed

Specified by:

getTagForEphemeral in interface EphemeralDB<Identifier,HighIdentifier>

Returns:

clear

protected void clear(long tag)