org.javagroups.protocols
Class WANPIPE

java.lang.Object
  |
  +--org.javagroups.stack.Protocol
        |
        +--org.javagroups.protocols.WANPIPE
All Implemented Interfaces:
LogicalLink.Receiver

public class WANPIPE
extends Protocol
implements LogicalLink.Receiver

Logical point-to-point link. Uses multiple physical links to provide a reliable transport. For example, if there are 2 physical links over different networks, and one of them fails, the WAN pipe will still be able to send traffic over the other link. Currently traffic is sent over the physical links round-robin, but this will be made configurable in the future. Example: 70% over first link, 30% over second, or packets are split and sent across both links (increasing the available bandwidth).


Inner Class Summary
 class WANPIPE.WanPipeHeader
           
 
Fields inherited from class org.javagroups.stack.Protocol
down_handler, down_prot, down_queue, down_thread, observer, props, stack, up_handler, up_prot, up_queue, up_thread
 
Constructor Summary
WANPIPE()
           
 
Method Summary
 void down(Event evt)
          Sent to destination(s) using the WAN pipe.
 java.lang.String getName()
           
 void linkDown(java.net.InetAddress local, int local_port, java.net.InetAddress remote, int remote_port)
           
 void linkUp(java.net.InetAddress local, int local_port, java.net.InetAddress remote, int remote_port)
           
 void missedHeartbeat(java.net.InetAddress local, int local_port, java.net.InetAddress remote, int remote_port, int num_hbs)
           
 void receive(byte[] buf)
           
 void receivedHeartbeatAgain(java.net.InetAddress local, int local_port, java.net.InetAddress remote, int remote_port)
           
 boolean setProperties(java.util.Properties props)
          Setup the Protocol instance acording to the configuration string
 void startWork()
           
 java.lang.String toString()
           
 void up(Event evt)
          An event was received from the layer below.
 
Methods inherited from class org.javagroups.stack.Protocol
getDownProtocol, getDownQueue, getProperties, getUpProtocol, getUpQueue, init, passDown, passUp, providedDownServices, providedUpServices, receiveDownEvent, receiveUpEvent, requiredDownServices, requiredUpServices, setDownProtocol, setObserver, setPropertiesInternal, setProtocolStack, setUpProtocol, startDownHandler, startUpHandler, stopInternal
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

WANPIPE

public WANPIPE()
Method Detail

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object

getName

public java.lang.String getName()
Overrides:
getName in class Protocol

up

public void up(Event evt)
Description copied from class: Protocol
An event was received from the layer below. Usually the current layer will want to examine the event type and - depending on its type - perform some computation (e.g. removing headers from a MSG event type, or updating the internal membership list when receiving a VIEW_CHANGE event). Finally the event is either a) discarded, or b) an event is sent down the stack using passDown() or c) the event (or another event) is sent up the stack using passUp().
Overrides:
up in class Protocol

down

public void down(Event evt)
Sent to destination(s) using the WAN pipe. Send local messages directly back up the stack
Overrides:
down in class Protocol

startWork

public void startWork()

receive

public void receive(byte[] buf)
Specified by:
receive in interface LogicalLink.Receiver

linkDown

public void linkDown(java.net.InetAddress local,
                     int local_port,
                     java.net.InetAddress remote,
                     int remote_port)
Specified by:
linkDown in interface LogicalLink.Receiver

linkUp

public void linkUp(java.net.InetAddress local,
                   int local_port,
                   java.net.InetAddress remote,
                   int remote_port)
Specified by:
linkUp in interface LogicalLink.Receiver

missedHeartbeat

public void missedHeartbeat(java.net.InetAddress local,
                            int local_port,
                            java.net.InetAddress remote,
                            int remote_port,
                            int num_hbs)
Specified by:
missedHeartbeat in interface LogicalLink.Receiver

receivedHeartbeatAgain

public void receivedHeartbeatAgain(java.net.InetAddress local,
                                   int local_port,
                                   java.net.InetAddress remote,
                                   int remote_port)
Specified by:
receivedHeartbeatAgain in interface LogicalLink.Receiver

setProperties

public boolean setProperties(java.util.Properties props)
Setup the Protocol instance acording to the configuration string
Overrides:
setProperties in class Protocol


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