net.tomp2p.p2p

Class RoutingMechanism

java.lang.Object

net.tomp2p.p2p.RoutingMechanism

public class RoutingMechanism
extends Object

The routing mechanism. Since this is called from Netty handlers, we don't have any visibility issues. If you want to use an execution handler, then it must be an OrderedMemoryAwareThreadPoolExecutor. http://stackoverflow.com/questions/8304309/keeping-state-in-a-netty-channelhandler

Author:

Thomas Bocek

Constructor Summary

Constructors

Constructor and Description
RoutingMechanism(AtomicReferenceArray<FutureResponse> futureResponses, FutureRouting futureRoutingResponse, Collection<PeerFilter> peerFilters) Creates the routing mechanism.

Method Summary

Methods

Modifier and Type	Method and Description
void	addPotentialHits(PeerAddress remotePeer)
void	addToAlreadyAsked(PeerAddress next)
SortedSet<PeerAddress>	alreadyAsked()
RoutingMechanism	alreadyAsked(SortedSet<PeerAddress> alreadyAsked)
void	cancel() Cancel the future that causes the underlying futures to cancel as well.
SortedMap<PeerAddress,DigestInfo>	directHits()
RoutingMechanism	directHits(SortedMap<PeerAddress,DigestInfo> directHits)
boolean	evaluateFailed()
boolean	evaluateSuccess(PeerAddress remotePeer, DigestInfo digestBean, Collection<PeerAddress> newNeighbors, boolean last, Number160 locationkey)
FutureResponse	futureResponse(int i)
FutureResponse	futureResponse(int i, FutureResponse futureResponse)
AtomicReferenceArray<FutureResponse>	futureResponses()
FutureRouting	futureRoutingResponse()
int	getMaxDirectHits()
boolean	isStopCreatingNewFutures()
void	maxDirectHits(int maxDirectHits)
int	maxFailures()
void	maxFailures(int maxFailures)
int	maxNoNewInfo()
void	maxNoNewInfo(int maxNoNewInfo)
int	maxSucess()
void	maxSucess(int maxSucess)
void	neighbors(RoutingBuilder builder)
int	nrNoNewInfo()
int	parallel()
PeerAddress	pollFirstInQueueToAsk()
PeerAddress	pollRandomInQueueToAsk(Random rnd)
NavigableSet<PeerAddress>	potentialHits()
RoutingMechanism	potentialHits(NavigableSet<PeerAddress> potentialHits)
NavigableSet<PeerAddress>	queueToAsk()
RoutingMechanism	queueToAsk(NavigableSet<PeerAddress> queueToAsk)
void	stopCreatingNewFutures(boolean stopCreatingNewFutures)

Methods inherited from class java.lang.Object

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

Constructor Detail

RoutingMechanism

public RoutingMechanism(AtomicReferenceArray<FutureResponse> futureResponses,
                FutureRouting futureRoutingResponse,
                Collection<PeerFilter> peerFilters)

Creates the routing mechanism. Make sure to set the max* fields.

Parameters:

futureResponses - The current future responeses that are running

futureRoutingResponse - The reponse future from this routing request

Method Detail

futureRoutingResponse

public FutureRouting futureRoutingResponse()

parallel

public int parallel()

Returns:

The number of parallel requests. The number is determined by the length of the future response array

isStopCreatingNewFutures

public boolean isStopCreatingNewFutures()

Returns:

True if we should stop creating more futures, false otherwise

futureResponse

public FutureResponse futureResponse(int i)

Parameters:

i - The number of the future response to get

Returns:

The future response at position i

futureResponse

public FutureResponse futureResponse(int i,
                            FutureResponse futureResponse)

Parameters:

i - The number of the future response to get and set

futureResponse - The future response to set

Returns:

The old future response

queueToAsk

public RoutingMechanism queueToAsk(NavigableSet<PeerAddress> queueToAsk)

Parameters:

queueToAsk - The queue that contains the peers that will be queried in the future

Returns:

This class

queueToAsk

public NavigableSet<PeerAddress> queueToAsk()

Returns:

The queue that contains the peers that will be queried in the future

alreadyAsked

public RoutingMechanism alreadyAsked(SortedSet<PeerAddress> alreadyAsked)

Parameters:

alreadyAsked - The peer we have already queried, we need to store them to not ask the same peers again

Returns:

This class

alreadyAsked

public SortedSet<PeerAddress> alreadyAsked()

Returns:

The peer we have already queried, we need to store them to not ask the same peers again

potentialHits

public RoutingMechanism potentialHits(NavigableSet<PeerAddress> potentialHits)

Parameters:

potentialHits - The potential hits are those reported by other peers that we did not check if they contain certain data.

Returns:

This class

potentialHits

public NavigableSet<PeerAddress> potentialHits()

Returns:

The potential hits are those reported by other peers that we did not check if they contain certain data.

directHits

public RoutingMechanism directHits(SortedMap<PeerAddress,DigestInfo> directHits)

Parameters:

directHits - The peers that have certain data stored on it

Returns:

This class

directHits

public SortedMap<PeerAddress,DigestInfo> directHits()

Returns:

The peers that have certain data stored on it

getMaxDirectHits

public int getMaxDirectHits()

maxDirectHits

public void maxDirectHits(int maxDirectHits)

maxNoNewInfo

public int maxNoNewInfo()

maxNoNewInfo

public void maxNoNewInfo(int maxNoNewInfo)

maxFailures

public int maxFailures()

maxFailures

public void maxFailures(int maxFailures)

maxSucess

public int maxSucess()

maxSucess

public void maxSucess(int maxSucess)

pollFirstInQueueToAsk

public PeerAddress pollFirstInQueueToAsk()

pollRandomInQueueToAsk

public PeerAddress pollRandomInQueueToAsk(Random rnd)

addToAlreadyAsked

public void addToAlreadyAsked(PeerAddress next)

neighbors

public void neighbors(RoutingBuilder builder)

cancel

public void cancel()

Cancel the future that causes the underlying futures to cancel as well.

futureResponses

public AtomicReferenceArray<FutureResponse> futureResponses()

addPotentialHits

public void addPotentialHits(PeerAddress remotePeer)

stopCreatingNewFutures

public void stopCreatingNewFutures(boolean stopCreatingNewFutures)

evaluateFailed

public boolean evaluateFailed()

evaluateSuccess

public boolean evaluateSuccess(PeerAddress remotePeer,
                      DigestInfo digestBean,
                      Collection<PeerAddress> newNeighbors,
                      boolean last,
                      Number160 locationkey)

nrNoNewInfo

public int nrNoNewInfo()