org.archive.wayback.resourcestore.indexer

Class IndexQueueUpdater

java.lang.Object

org.archive.wayback.resourcestore.indexer.IndexQueueUpdater

All Implemented Interfaces:

Shutdownable

public class IndexQueueUpdater
extends 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

Constructors

Constructor and Description
IndexQueueUpdater()

Method Summary

Methods

Modifier and Type	Method and Description
ResourceFileLocationDB	getDb()
long	getInterval()
String	getLastMark()
IndexQueue	getQueue()
void	init() The init method for this class.
void	setDb(ResourceFileLocationDB db)
void	setInterval(long interval)
void	setLastMark(String path)
void	setQueue(IndexQueue queue)
void	shutdown() Release any resources used by this ResourceIndex cleanly
int	updateQueue() Add new names to the IndexQueue.

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()

The init method for this class.

shutdown

public void shutdown()

Description copied from interface: Shutdownable

Release any resources used by this ResourceIndex cleanly

Specified by:

shutdown in interface Shutdownable

updateQueue

public int updateQueue()
                throws IOException

Add new names to the IndexQueue.

Returns:

The number of items added to the queue.

Throws:

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 String getLastMark()

Returns:

the stateFile

setLastMark

public void setLastMark(String path)
                 throws IOException

Parameters:

path - The filepath to use as mark.

Throws:

IOException

getInterval

public long getInterval()

Returns:

the interval

setInterval

public void setInterval(long interval)

Parameters:

interval - the interval to set