Package com.sun.enterprise.mgmt.transport

Class VirtualMulticastSender

java.lang.Object

com.sun.enterprise.mgmt.transport.AbstractMulticastMessageSender

com.sun.enterprise.mgmt.transport.VirtualMulticastSender

All Implemented Interfaces:

MulticastMessageSender, ShoalMessageSender

public class VirtualMulticastSender
extends AbstractMulticastMessageSender

This class extends BlockingIOMulticastSender for supporting the circumstance that cluster members are located beyond one subnet or multicast traffic is disabled virtualPeerIdList should contain PeerIDs of cluster members which are located beyond one subnet. So, this MulticastMessageSender will broadcast a message to endpoints which virtualPeerIdList includes as well as one subnet on TCP protocol.

Author:

Bongjae Chang

Field Summary

Fields inherited from class com.sun.enterprise.mgmt.transport.AbstractMulticastMessageSender

localPeerID

Fields inherited from interface com.sun.enterprise.mgmt.transport.ShoalMessageSender

TCP_TRANSPORT, UDP_TRANSPORT

Constructor Summary

Constructors

Constructor	Description
VirtualMulticastSender(NetworkManager networkManager, java.util.List<PeerID> initialPeerIds)

Method Summary

Modifier and Type	Method	Description
protected boolean	doBroadcast(Message message)	Broadcasts or Multicasts the given Message to all members
java.util.Set<PeerID>	getVirtualPeerIDSet()
void	removeUnknownInstances()	Remove all PeerID entries added via DISCOVERY_URI_LIST.
void	start()
void	stop()

Methods inherited from class com.sun.enterprise.mgmt.transport.AbstractMulticastMessageSender

broadcast

Methods inherited from class java.lang.Object

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

Constructor Detail

VirtualMulticastSender

public VirtualMulticastSender(NetworkManager networkManager,
                              java.util.List<PeerID> initialPeerIds)
                       throws java.io.IOException

Throws:

java.io.IOException

Method Detail

getVirtualPeerIDSet

public java.util.Set<PeerID> getVirtualPeerIDSet()

start

public void start()
           throws java.io.IOException

Description copied from class: AbstractMulticastMessageSender

Specified by:

start in interface ShoalMessageSender

Overrides:

start in class AbstractMulticastMessageSender

Throws:

java.io.IOException

stop

public void stop()
          throws java.io.IOException

Description copied from class: AbstractMulticastMessageSender

Specified by:

stop in interface ShoalMessageSender

Overrides:

stop in class AbstractMulticastMessageSender

Throws:

java.io.IOException

doBroadcast

protected boolean doBroadcast(Message message)
                       throws java.io.IOException

Broadcasts or Multicasts the given Message to all members

Specified by:

doBroadcast in class AbstractMulticastMessageSender

Parameters:

message - a message which is sent to all members

Returns:

true if the message is sent to all members successfully, otherwise false

Throws:

java.io.IOException - if I/O error occurs or given parameters are not valid

removeUnknownInstances

public void removeUnknownInstances()

Remove all PeerID entries added via DISCOVERY_URI_LIST. These entries have "Unknown_" at start for instance name. If there are not removed, then we send to those DISCOVERY_URI_LIST instances multiple times.