lac.cnet.groupdefiner.task

Class GroupMembershipGDiffMessageTask

java.lang.Object

lac.cnet.groupdefiner.task.GroupMembershipGDiffMessageTask

All Implemented Interfaces:

java.lang.Runnable

public class GroupMembershipGDiffMessageTask
extends java.lang.Object
implements java.lang.Runnable

Each instance of GroupMembershipGDiffMessageTask (GDiffMessageTask) represents an object to be processed by the GroupDefinerīs thread pool This class calls the Group Selection Module and realizes the Gdiff message processing.

Author:

Rafael Oliveira Vasconcelos

Constructor Summary

Constructors

Constructor and Description
GroupMembershipGDiffMessageTask(GroupDefiner groupDefiner, Message mobileNodeInformation) Constructs a GroupMembershipGDiffMessageTask from GroupDefinerīs instance and the CxtU.

Method Summary

Methods

Modifier and Type	Method and Description
static void	addAllGroups(java.util.Set<java.lang.Integer> groupCollection, java.util.Collection<java.lang.Integer> groupsToBeInserted) Adds a array of groups to the specified Set of groups
static java.util.Set<java.lang.Integer>	getGDiffMessage(java.util.Set<java.lang.Integer> newGroupCollection, java.util.Set<java.lang.Integer> oldGroupCollection) Calculates the Gdiff message from the newGroupCollection and oldGroupCollection
static java.util.Set<java.lang.Integer>	getGroupCollection(Message nodeMessage, int groupType) Gets all groups that have the specified group type
void	run() Processes the CxtU message and calculates the Gdiff message

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupMembershipGDiffMessageTask

public GroupMembershipGDiffMessageTask(GroupDefiner groupDefiner,
                               Message mobileNodeInformation)

Constructs a GroupMembershipGDiffMessageTask from GroupDefinerīs instance and the CxtU.

Parameters:

groupDefiner - GroupDefinerīs instance

mobileNodeInformation - CxtU message produced by Mobile Node

Method Detail

run

public void run()

Processes the CxtU message and calculates the Gdiff message

Specified by:

run in interface java.lang.Runnable

getGroupCollection

public static java.util.Set<java.lang.Integer> getGroupCollection(Message nodeMessage,
                                                  int groupType)

Gets all groups that have the specified group type

Parameters:

nodeMessage - CxtU message

groupType - The specified group type

Returns:

Set that holds the groups

addAllGroups

public static void addAllGroups(java.util.Set<java.lang.Integer> groupCollection,
                java.util.Collection<java.lang.Integer> groupsToBeInserted)

Adds a array of groups to the specified Set of groups

Parameters:

groupCollection - The specified collection where the groups will be inserted

groupsToBeInserted - Groups to be inserted in the specified collection

getGDiffMessage

public static java.util.Set<java.lang.Integer> getGDiffMessage(java.util.Set<java.lang.Integer> newGroupCollection,
                                               java.util.Set<java.lang.Integer> oldGroupCollection)

Calculates the Gdiff message from the newGroupCollection and oldGroupCollection

Parameters:

newGroupCollection - The Mobile Nodeīs groups calculated by the Group Selection Module. These groups are also called the new (or current) MNīs groups

oldGroupCollection - The Mobile Nodeīs groups informed by the Gateway. These groups are also called the old MNīs groups

Returns:

Gdiff message