tapestry.ptr.impl
Class LocationStage

java.lang.Object
  |
  +--ostore.util.StandardStage
        |
        +--tapestry.ptr.impl.LocationStage

All Implemented Interfaces:

EventHandlerIF, SingleThreadedEventHandlerIF

public class LocationStage

extends StandardStage

implements SingleThreadedEventHandlerIF

WARNING This class is not complete yet. If you are not online this stage will hang and then die. LocationStage fetches and parses the geographic location of a list of nodes given their ip_addresses. When used as a stand alone program LocationStage prints the location list to the screen. When used as a stage use the LocationReq, LocationResp, and LocationInfo interface.

Version:

$Id: LocationStage.java,v 1.1.1.1 2004/03/26 19:57:11 hweather Exp $

Author:

Hakim Weatherspoon

Nested Class Summary

static class	LocationStage.LocationInfo Ping another node to test if the node is alive.
static class	LocationStage.LocationReq LocationReq request to the LocationStage to return a LocationStage.LocationInfo pertaining to the given NodeId.
static class	LocationStage.LocationResp LocationResp response from the LocationStage containing LocationStage.LocationInfo corresponding to the given NodeId.

Field Summary

Fields inherited from class ostore.util.StandardStage

classifier, DEBUG, event_types, inb_msg_types, my_node_id, my_sink, outb_msg_types, tag

Constructor Summary

LocationStage()

Method Summary

void	handleEvent(QueueElementIF item) Specified by seda.sandStorm.api.EventHandlerIF
void	init(ConfigDataIF config) Specified by seda.sandStorm.api.EventHandlerIF
static void	main(String[] argv)

Methods inherited from class ostore.util.StandardStage

BUG, destroy, dispatch, enqueue, handleEvents, now_ms, now_us

Methods inherited from class java.lang.Object

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

Constructor Detail

LocationStage

public LocationStage()

Method Detail

main

public static void main(String[] argv)

handleEvent

public void handleEvent(QueueElementIF item)
                 throws EventHandlerException

Specified by seda.sandStorm.api.EventHandlerIF

Specified by:

handleEvent in interface EventHandlerIF

EventHandlerException

init

public void init(ConfigDataIF config)
          throws Exception

Specified by seda.sandStorm.api.EventHandlerIF

Specified by:

init in interface EventHandlerIF

Overrides:

init in class StandardStage

Exception