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## rice.pastry.direct
Class EuclideanNetwork

    java.lang.Object
      rice.pastry.direct.EuclideanNetwork

All Implemented Interfaces:
  NetworkSimulator

public class EuclideanNetwork
extends java.lang.Object
implements NetworkSimulator

Euclidean network topology and idealized node life. Emulates a network of nodes that are randomly placed in a plane. Proximity is based on euclidean distance in the plane.

Version:
  $Id: EuclideanNetwork.java,v 1.17 2005/03/11 00:58:12 jeffh Exp $
Author:
  Andrew Ladd, Rongmei Zhang

Constructor Summary
`EuclideanNetwork()` Constructor.

Method Summary
`void` | `deliverMessage(Message msg, PastryNode node)` DESCRIBE THE METHOD
`DirectNodeHandle` | `getClosest(NodeId nid)` find the closest NodeId to an input NodeId out of all NodeIds in the network
`TestRecord` | `getTestRecord()` get TestRecord
`boolean` | `isAlive(NodeId nid)` testing if a NodeId is alive
`int` | `proximity(NodeId a, NodeId b)` computes the proximity between two NodeIds
`void` | `registerNodeId(DirectNodeHandle nh)` register a new node
`void` | `setAlive(NodeId nid, boolean alive)` set the liveliness of a NodeId
`void` | `setTestRecord(TestRecord tr)` set TestRecord
`boolean` | `simulate()` DESCRIBE THE METHOD

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

Constructor Detail

### EuclideanNetwork

    public EuclideanNetwork()

  Constructor.

Method Detail

### isAlive

    public boolean isAlive(NodeId nid)

  testing if a NodeId is alive

  Specified by:
    `isAlive` in interface `NetworkSimulator`
  Parameters:
    `nid` - the NodeId being tested
  Returns:
    true if nid is alive false otherwise

### getTestRecord

    public TestRecord getTestRecord()

  get TestRecord

  Specified by:
    `getTestRecord` in interface `NetworkSimulator`
  Returns:
    the returned TestRecord

### getClosest

    public DirectNodeHandle getClosest(NodeId nid)

  find the closest NodeId to an input NodeId out of all NodeIds in the network

  Specified by:
    `getClosest` in interface `NetworkSimulator`
  Parameters:
    `nid` - the input NodeId
  Returns:
    the NodeId closest to the input NodeId in the network

### setAlive

    public void setAlive(NodeId nid,
                         boolean alive)

  set the liveliness of a NodeId

  Specified by:
    `setAlive` in interface `NetworkSimulator`
  Parameters:
    `nid` - the NodeId being set
    `alive` - the value being set

### setTestRecord

    public void setTestRecord(TestRecord tr)

  set TestRecord

  Specified by:
    `setTestRecord` in interface `NetworkSimulator`
  Parameters:
    `tr` - input TestRecord

### registerNodeId

    public void registerNodeId(DirectNodeHandle nh)

  register a new node

  Specified by:
    `registerNodeId` in interface `NetworkSimulator`
  Parameters:
    `nh` - the DirectNodeHandle being registered

### proximity

    public int proximity(NodeId a,
                         NodeId b)

  computes the proximity between two NodeIds

  Specified by:
    `proximity` in interface `NetworkSimulator`
  Parameters:
    `a` - the first NodeId
    `b` - the second NodeId
  Returns:
    the proximity between the two input NodeIds

### deliverMessage

    public void deliverMessage(Message msg,
                               PastryNode node)

  DESCRIBE THE METHOD

  Specified by:
    `deliverMessage` in interface `NetworkSimulator`
  Parameters:
    `msg` - DESCRIBE THE PARAMETER
    `node` - DESCRIBE THE PARAMETER

### simulate

    public boolean simulate()

  DESCRIBE THE METHOD

  Specified by:
    `simulate` in interface `NetworkSimulator`
  Returns:
    DESCRIBE THE RETURN VALUE

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