org.mmbase.module.builders.vwms
Class JudasURLpusher

java.lang.Object
  |
  +--org.mmbase.module.builders.vwms.JudasURLpusher

All Implemented Interfaces:

java.lang.Runnable

public class JudasURLpusher

extends java.lang.Object

implements java.lang.Runnable

A background process that registers pagechanges and pushes for reloads of those pages, for proxy caching (and mirroring).

Version:

10 Apr 2001

Author:

Rico Jansen, Pierre van Rooden (javadocs)

Constructor Summary

JudasURLpusher(Judas parent)
Constructor of the URL pusher class.

Method Summary

void	addURL(java.lang.String url) Adds a url to be scheduled for reload.
void	addURL(java.lang.String url, int priority) Adds a url to be scheduled for reload.
void	doWork() Main work loop.
void	init() Intializes the class.
void	run() Main loop, exception protected
void	start() Starts the main Thread.
void	stop() Stops the main Thread.

Methods inherited from class java.lang.Object

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

Constructor Detail

JudasURLpusher

public JudasURLpusher(Judas parent)

Constructor of the URL pusher class.

Parameters:

parent - the instance that starts the class

Method Detail

init

public void init()

Intializes the class. Starts the thread for this class.

start

public void start()

Starts the main Thread.

stop

public void stop()

Stops the main Thread.

run

public void run()

Main loop, exception protected

Specified by:

run in interface java.lang.Runnable

See Also:

doWork()

doWork

public void doWork()

Main work loop. Periodically checks the list of urls to be reloaded. If any urls with a maximum priority exist, they are pushed to be reloaded. After this, the priority of all remaining urls are increased by one (to be scheduled for handling next time).

addURL

public void addURL(java.lang.String url)

Adds a url to be scheduled for reload. The url has to be a relative url eg. /3voor12/bla/index.shtml?123+456 . If no parameters are given, the url STILL has to have a '?' character eg. /3voor12/test.shtml? Uses default priority for scheduling reload. The urls are added to a queue that is periodically emptied by the workloop. Any duplicate urls are removed from the queue to improve performance.

Parameters:

url - the url to reload

addURL

public void addURL(java.lang.String url,
                   int priority)

Adds a url to be scheduled for reload. The url has to be a relative url eg. /3voor12/bla/index.shtml?123+456 . If no parameters are given, the url STILL has to have a '?' character eg. /3voor12/test.shtml? The urls are added to a queue that is periodically emptied by the workloop. Any duplicate urls are removed from the queue to improve performance.

Parameters:

url - the url to reload

priority - priority at which the url needs to be reloaded