solar.service.routing
Class DirectRoutingService

java.lang.Object
  |
  +--solar.service.BaseService
        |
        +--solar.service.routing.ManualRoutingService
              |
              +--solar.service.routing.DirectRoutingService

All Implemented Interfaces:

Cache.CacheListener, EventHandler, RequestHandler, RoutingConstants, RoutingService, Service

public class DirectRoutingService

extends ManualRoutingService

The direct routing service uses same routing contruction as ManualRoutingService, only to gain knowledge of all live hosts. It does not attempt to route using the knowledge, but simply route on IP. The services exchange information about each other so each node eventually knows all other live nodes in the network. This service requires a transport, a cache and a timer services. The valid properties are:

• rtable: whether to use a daemon to build routing table.
  
• interval: periodic probing interval, default as 5 seconds.
  
• bootstrap: the peer node to connect at startup.
  
• cache: the name of required cache service, default as "cache".
  
• timer: the name of required timer service, default as "timer".
  

Version:

$Id: DirectRoutingService.java,v 1.18 2003/10/05 18:51:01 glchen Exp $

Author:

Guanling Chen

Nested Class Summary

Nested classes inherited from class solar.service.routing.ManualRoutingService

ManualRoutingService.RoutingTask

Field Summary

protected boolean

_rtable

Fields inherited from class solar.service.routing.ManualRoutingService

_dispatch, _interval, _log, _nearby, _peer, _remote, _routingName, _timer, _transportAddress, _transportName

Fields inherited from class solar.service.BaseService

_inited, _manager, _name

Fields inherited from interface solar.service.routing.RoutingConstants

ROUTING_HOST, ROUTING_INTERVAL, ROUTING_LASTHOP, ROUTING_SOURCE

Constructor Summary

DirectRoutingService()

Method Summary

Address	getNextHop(Address dest) Return the next hop for the messages with specified destination.
void	init() Initiate the service, do not try to init dependent services here.
void	initDependents() Initialize dependent services here.

Methods inherited from class solar.service.routing.ManualRoutingService

handleEvent, notifyObjectExpired

Methods inherited from class solar.service.BaseService

assertInited, getDependentService, getName, getServiceManager, handleDispatchUnit, handleEvent, handleRequest, hasInited, init, setInited, setName, setServiceManager, start, stop

Methods inherited from class java.lang.Object

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

Methods inherited from interface solar.service.Service

getName, getServiceManager, handleDispatchUnit, hasInited, setName, setServiceManager, start, stop

Methods inherited from interface solar.api.RequestHandler

handleRequest

Field Detail

_rtable

protected boolean _rtable

Constructor Detail

DirectRoutingService

public DirectRoutingService()

Method Detail

init

public void init()
          throws ServiceException

Description copied from interface: Service

Initiate the service, do not try to init dependent services here.

Specified by:

init in interface Service

Overrides:

init in class ManualRoutingService

ServiceException

initDependents

public void initDependents()
                    throws ServiceException

Description copied from interface: Service

Initialize dependent services here.

Specified by:

initDependents in interface Service

Overrides:

initDependents in class ManualRoutingService

ServiceException

getNextHop

public Address getNextHop(Address dest)
                   throws RoutingException

Description copied from interface: RoutingService

Return the next hop for the messages with specified destination.

Specified by:

getNextHop in interface RoutingService

Overrides:

getNextHop in class ManualRoutingService

RoutingException