rice.pastry.direct
Class DirectPastryNodeFactory

java.lang.Object
  rice.pastry.PastryNodeFactory
      rice.pastry.direct.DirectPastryNodeFactory

public class DirectPastryNodeFactory

extends PastryNodeFactory

Pastry node factory for direct connections between nodes (local instances).

Version:

$Id: DirectPastryNodeFactory.java 2904 2006-01-10 21:50:37Z jeffh $

Author:

Andrew Ladd, Sitaram Iyer, Rongmei Zhang/Y. Charlie Hu

Field Summary

Fields inherited from class rice.pastry.PastryNodeFactory

environment, logger, lSetSize, pingCache, rtBase, rtMax

Constructor Summary

DirectPastryNodeFactory(NodeIdFactory nf, NetworkSimulator sim, Environment env)
Main constructor.

Method Summary

LeafSet	getLeafSet(NodeHandle handle) This method returns the remote leafset of the provided handle to the caller, in a protocol-dependent fashion.
CancellableTask	getLeafSet(NodeHandle handle, Continuation c) Non-blocking version.
NetworkSimulator	getNetworkSimulator() Getter for the NetworkSimulator.
int	getProximity(NodeHandle local, NodeHandle remote) This method determines and returns the proximity of the current local node the provided NodeHandle.
RouteSet[]	getRouteRow(NodeHandle handle, int row) This method returns the remote route row of the provided handle to the caller, in a protocol-dependent fashion.
CancellableTask	getRouteRow(NodeHandle handle, int row, Continuation c) Non-blocking version.
PastryNode	newNode(NodeHandle bootstrap) Manufacture a new Pastry node.
PastryNode	newNode(NodeHandle bootstrap, NodeId nodeId) Manufacture a new Pastry node.
protected int	proximity(NodeHandle local, NodeHandle handle) Method which checks to see if we have a cached value of the remote ping, and if not, initiates a ping and then caches the value

Methods inherited from class rice.pastry.PastryNodeFactory

getEnvironment, getNearest

Methods inherited from class java.lang.Object

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

Constructor Detail

DirectPastryNodeFactory

public DirectPastryNodeFactory(NodeIdFactory nf,
                               NetworkSimulator sim,
                               Environment env)

Main constructor.

Parameters:

nf - the NodeIdFactory

sim - the NetworkSimulator

e - the Enviornment

Method Detail

getNetworkSimulator

public NetworkSimulator getNetworkSimulator()

Getter for the NetworkSimulator.

Returns:

the NetworkSimulator we are using.

newNode

public PastryNode newNode(NodeHandle bootstrap)

Manufacture a new Pastry node.

Specified by:

newNode in class PastryNodeFactory

Parameters:

bootstrap - The node handle to bootstrap off of

Returns:

a new PastryNode

newNode

public PastryNode newNode(NodeHandle bootstrap,
                          NodeId nodeId)

Manufacture a new Pastry node.

Specified by:

newNode in class PastryNodeFactory

Parameters:

bootstrap - The node handle to bootstrap off of

nodeId - The nodeId of the new node

Returns:

a new PastryNode

getLeafSet

public LeafSet getLeafSet(NodeHandle handle)
                   throws java.io.IOException

This method returns the remote leafset of the provided handle to the caller, in a protocol-dependent fashion. Note that this method may block while sending the message across the wire.

Specified by:

getLeafSet in class PastryNodeFactory

Parameters:

handle - The node to connect to

Returns:

The leafset of the remote node

Throws:

java.io.IOException

getLeafSet

public CancellableTask getLeafSet(NodeHandle handle,
                                  Continuation c)

Description copied from class: PastryNodeFactory

Non-blocking version.

Specified by:

getLeafSet in class PastryNodeFactory

Returns:

getRouteRow

public RouteSet[] getRouteRow(NodeHandle handle,
                              int row)
                       throws java.io.IOException

This method returns the remote route row of the provided handle to the caller, in a protocol-dependent fashion. Note that this method may block while sending the message across the wire.

Specified by:

getRouteRow in class PastryNodeFactory

Parameters:

handle - The node to connect to

row - The row number to retrieve

Returns:

The route row of the remote node

Throws:

java.io.IOException

getRouteRow

public CancellableTask getRouteRow(NodeHandle handle,
                                   int row,
                                   Continuation c)

Description copied from class: PastryNodeFactory

Non-blocking version.

Specified by:

getRouteRow in class PastryNodeFactory

Returns:

getProximity

public int getProximity(NodeHandle local,
                        NodeHandle remote)

This method determines and returns the proximity of the current local node the provided NodeHandle. This will need to be done in a protocol- dependent fashion and may need to be done in a special way.

Specified by:

getProximity in class PastryNodeFactory

Parameters:

handle - The handle to determine the proximity of

Returns:

The proximity of the provided handle

proximity

protected int proximity(NodeHandle local,
                        NodeHandle handle)

Description copied from class: PastryNodeFactory

Method which checks to see if we have a cached value of the remote ping, and if not, initiates a ping and then caches the value

Overrides:

proximity in class PastryNodeFactory

handle - The handle to ping

Returns:

The proximity of the handle