cgl.narada.topology.viewer
Class SCluster

java.lang.Object
  cgl.narada.topology.viewer.Node
      cgl.narada.topology.viewer.SCluster

public class SCluster
extends Node

This class represents all the super clusters consisting of clusters. The super cluster is third level in the node address. If node's address is 1.2.3.4 then the super cluster id is 2

Field Summary

List

clusters

Fields inherited from class cgl.narada.topology.viewer.Node

clients, INVALID_VALUE, nodeId, nodeLocation, parentClusterId, parentSClusterId, parentSSClusterId

Constructor Summary

SCluster(int pSClusterId, int pSSClusterId)
Only constructor

Method Summary

void	deleteAllClusters(List nodesToBeDeleted) Deletes all the cluster present in this super cluster.
void	deleteCluster(int clusterId, int nodeId, List nodesToBeDeleted) Deletes an existing cluster inside the super cluster only if that cluster is empty and then repositions all other clusters.
void	drawSuperCluster(Graphics g, int limitX1, int limitY1, int limitX2, int limitY2) Draws the super cluster only if its part is visible on the screen.
Node	getNodeAtParticularCoordinates(int x, int y) Finds out cluster nearest to the specified coordinates.
Node	getParticularNode(int clusterId, int nodeId) Returns a node in this super cluster with specified cluster and node id.
void	insertCluster(int clusterId, int nodeId) Add a new cluster to the list.
void	repositionClusters() Gets the new Position objects and assign then to all the clusters inside this super cluster.

Methods inherited from class cgl.narada.topology.viewer.Node

addClient, addTopic, canFitOnPanel, deleteAllClients, deleteAllTopics, deleteClient, deleteTopic, drawNode, getAllClients, getClient, getNodeAddress

Methods inherited from class java.lang.Object

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

Field Detail

clusters

public List clusters

Constructor Detail

SCluster

public SCluster(int pSClusterId,
                int pSSClusterId)

Only constructor

Method Detail

insertCluster

public void insertCluster(int clusterId,
                          int nodeId)
                   throws TopologyException

Add a new cluster to the list. Depending upon the total number of clusters in the list, decide the new positions for each of the cluster.

Parameters:

clusterId - id of a cluster

nodeId - id of a node to be inserted

Throws:

TopologyException - if due to some problem cluster is found null during node insertion

deleteCluster

public void deleteCluster(int clusterId,
                          int nodeId,
                          List nodesToBeDeleted)
                   throws TopologyException

Deletes an existing cluster inside the super cluster only if that cluster is empty and then repositions all other clusters. If the cluster does not become empty after the node deletion then just pass the control to the Cluster for deletion of the node.

Parameters:

clusterId - id of a cluster containing node to be deleted.

nodeId - id of a node to be deleted.

nodesToBeDeleted - a List which will contain node addresses of the nodes being deleted.

Throws:

TopologyException - if no such cluster id found while node deletion.

deleteAllClusters

public void deleteAllClusters(List nodesToBeDeleted)

Deletes all the cluster present in this super cluster.

Parameters:

nodesToBeDeleted - a List which will contain node addresses of the nodes being deleted.

getNodeAtParticularCoordinates

public Node getNodeAtParticularCoordinates(int x,
                                           int y)

Finds out cluster nearest to the specified coordinates. Then passes control to the cluster for finding a nearest node.

Parameters:

x - X-coordinate

y - Y-coordinate

Returns:

Node nearest to specified coordinates.

drawSuperCluster

public void drawSuperCluster(Graphics g,
                             int limitX1,
                             int limitY1,
                             int limitX2,
                             int limitY2)

Draws the super cluster only if its part is visible on the screen. Draws all the clusters inside it.

Parameters:

g - Graphics object for image drawing.

limitX1 - lower limit for X-coordinate

limitY1 - lower limit for Y-coordinate

limitX2 - upper limit for X-coordinate

limitY2 - upper limit for Y-coordinate

getParticularNode

public Node getParticularNode(int clusterId,
                              int nodeId)

Returns a node in this super cluster with specified cluster and node id.

Parameters:

clusterId - id of a cluster.

nodeId - id of a node.

Returns:

Node

repositionClusters

public void repositionClusters()

Gets the new Position objects and assign then to all the clusters inside this super cluster. Recurdively calls repositionNodes() for each of the cluster.