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## rice.pastry.socket.nat.rendezvous
Class RendezvousPNSApplication

    java.lang.Object
      rice.pastry.client.PastryAppl
          rice.pastry.pns.PNSApplication
              rice.pastry.socket.nat.rendezvous.RendezvousPNSApplication

All Implemented Interfaces:
  ProximityListener<NodeHandle>, ProximityNeighborSelector

    public class RendezvousPNSApplication

extends PNSApplication

Does not try to connect to NATted nodes during PNS. TODO: Cull out firewalled nodes from return values TODO: Make Proximity of firewalled nodes MAX_VALUE TODO: Make Rendezvous Layer check the MultiInetSocketAddress to see if they can contact eachother directly

Author:
  Jeff Hoye

Field Summary

Fields inherited from class rice.pastry.pns.PNSApplication
`DEFAULT_PROXIMITY, environment, pingCache, rtBase, timer`

Fields inherited from class rice.pastry.client.PastryAppl
`address, deserializer, instance, logger, options, receiver, thePastryNode`

Constructor Summary
`RendezvousPNSApplication(PastryNode pn)`

Method Summary
`Cancellable` | `getLeafSet(NodeHandle input, Continuation<LeafSet,java.lang.Exception> c)` This method returns the remote leafset of the provided handle to the caller, in a protocol-dependent fashion.
`Cancellable` | `getNearest(NodeHandle seed, Continuation<java.util.Collection<NodeHandle>,java.lang.Exception> retToMe)` This method implements the algorithm in the Pastry locality paper for finding a close node the the current node through iterative leafset and route row requests.
`Cancellable` | `getNearHandles(java.util.Collection<NodeHandle> bootHandles, Continuation<java.util.Collection<NodeHandle>,java.lang.Exception> deliverResultToMe)` This is the first step, cull out the bootHandles that we can't use good.
`Cancellable` | `getProximity(NodeHandle handle, Continuation<java.lang.Integer,java.io.IOException> c, int timeout)` Non-blocking version, no timeout.
`Cancellable` | `getRouteRow(NodeHandle input, short row, Continuation<RouteSet[],java.lang.Exception> c)` Non-blocking version.
`protected boolean` | `ignore(NodeHandle handle, Continuation c)` This method decides who to bother trying to connect to.
`protected boolean` | `useHandle(NodeHandle handle)` Separate this out to make it super easy to change the policy.

Methods inherited from class rice.pastry.pns.PNSApplication
`addToWaitingForLeafSet, addToWaitingForRouteRow, messageForAppl, proximityChanged, removeFromWaitingForLeafSet, removeFromWaitingForRouteRow, sortedProximityCache`

Methods inherited from class rice.pastry.client.PastryAppl
`accept, canReceiveSocket, connect, deliverWhenNotReady, destroy, enrouteMessage, finishReceiveSocket, getAddress, getDeserializer, getLeafSet, getNodeHandle, getNodeId, getRoutingTable, isClosest, leafSetChange, notifyReady, receiveMessage, receiveMessageInternal, register, routeMsg, routeMsg, routeMsgDirect, routeSetChange, setDeserializer`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### RendezvousPNSApplication

    public RendezvousPNSApplication(PastryNode pn)

Method Detail

### ignore

    protected boolean ignore(NodeHandle handle,
                             Continuation c)

  This method decides who to bother trying to connect to. If the node is not NATted, return false. If the node is NATted: c.receiveException() return true

  Parameters:
    `handle` -
    `c` -
  Returns:

### useHandle

    protected boolean useHandle(NodeHandle handle)

  Separate this out to make it super easy to change the policy.

  Parameters:
    `handle` -
  Returns:

### getNearHandles

    public Cancellable getNearHandles(java.util.Collection<NodeHandle> bootHandles,
                                      Continuation<java.util.Collection<NodeHandle>,java.lang.Exception> deliverResultToMe)

  This is the first step, cull out the bootHandles that we can't use good.

  Specified by:
    `getNearHandles` in interface `ProximityNeighborSelector`
  Overrides:
    `getNearHandles` in class `PNSApplication`

### getLeafSet

    public Cancellable getLeafSet(NodeHandle input,
                                  Continuation<LeafSet,java.lang.Exception> c)

  Description copied from class: `PNSApplication`
  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. Non-blocking version.

  Overrides:
    `getLeafSet` in class `PNSApplication`
  Parameters:
    `input` - The node to connect to
    `c` - Continuation to return the LeafSet to
  Returns:

### getRouteRow

    public Cancellable getRouteRow(NodeHandle input,
                                   short row,
                                   Continuation<RouteSet[],java.lang.Exception> c)

  Description copied from class: `PNSApplication`
  Non-blocking version.

  Overrides:
    `getRouteRow` in class `PNSApplication`
  Returns:

### getNearest

    public Cancellable getNearest(NodeHandle seed,
                                  Continuation<java.util.Collection<NodeHandle>,java.lang.Exception> retToMe)

  Description copied from class: `PNSApplication`
  This method implements the algorithm in the Pastry locality paper for finding a close node the the current node through iterative leafset and route row requests. The seed node provided is any node in the network which is a member of the pastry ring. This algorithm is designed to work in a protocol-independent manner, using the getResponse(Message) method provided by subclasses.

  Overrides:
    `getNearest` in class `PNSApplication`
  Parameters:
    `seed` - Any member of the pastry ring
  Returns:
    A node suitable to boot off of (which is close the this node)

### getProximity

    public Cancellable getProximity(NodeHandle handle,
                                    Continuation<java.lang.Integer,java.io.IOException> c,
                                    int timeout)

  Description copied from class: `PNSApplication`
  Non-blocking version, no timeout. TODO: Make this fail early if faulty.

  Overrides:
    `getProximity` in class `PNSApplication`

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