org.archive.wayback.resourcestore.indexer
Class IndexQueueUpdater

java.lang.Object
  org.archive.wayback.resourcestore.indexer.IndexQueueUpdater

All Implemented Interfaces:

Shutdownable

public class IndexQueueUpdater
extends java.lang.Object
implements Shutdownable

This class polls a ResourceFileLocationDB repeatedly, to notice new files arriving in the DB. Whenever new files are noticed, they are added to the Index Queue. It uses a local file to store the last known "mark" of the location DB.

Version:

$Date$, $Revision$

Author:

brad

Constructor Summary

IndexQueueUpdater()

Method Summary

ResourceFileLocationDB	getDb()
long	getInterval()
java.lang.String	getLastMark()
IndexQueue	getQueue()
void	init()
void	setDb(ResourceFileLocationDB db)
void	setInterval(long interval)
void	setLastMark(java.lang.String path)
void	setQueue(IndexQueue queue)
void	shutdown()
int	updateQueue()

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexQueueUpdater

public IndexQueueUpdater()

Method Detail

init

public void init()

shutdown

public void shutdown()

Specified by:

shutdown in interface Shutdownable

updateQueue

public int updateQueue()
                throws java.io.IOException

Throws:

java.io.IOException

getDb

public ResourceFileLocationDB getDb()

Returns:

the db

setDb

public void setDb(ResourceFileLocationDB db)

Parameters:

db - the db to set

getQueue

public IndexQueue getQueue()

Returns:

the queue

setQueue

public void setQueue(IndexQueue queue)

Parameters:

queue - the queue to set

getLastMark

public java.lang.String getLastMark()

Returns:

the stateFile

setLastMark

public void setLastMark(java.lang.String path)
                 throws java.io.IOException

Parameters:

stateFile - the stateFile to set

Throws:

java.io.IOException

getInterval

public long getInterval()

Returns:

the interval

setInterval

public void setInterval(long interval)

Parameters:

interval - the interval to set