com.day.cq.rewriter.linkchecker.impl
Class LinkCheckerTask

java.lang.Object
  com.day.cq.rewriter.linkchecker.impl.LinkCheckerTask

All Implemented Interfaces:

ExternalLinkChecker, Runnable

public class LinkCheckerTask
extends Object
implements Runnable, ExternalLinkChecker

Asynchronous task used to check external links on a regular basis.

Field Summary

protected int	badLinkTestInterval The number of hours to wait until a bad link is checked again.
protected int	goodLinkTestInterval The number of hours to wait until a valid link is checked again.
protected int	linkUnusedInterval The number of hours after which validity information about a link is removed from the repository if the link is not used any more.
protected LinkInfoStorage	storage

Constructor Summary

LinkCheckerTask()

Method Summary

protected void	activate(org.osgi.service.component.ComponentContext context) Activates the LinkChecker service.
boolean	check(String url) Validates and updates the given external link.
void	checkLink(LinkInfo info)
protected void	deactivate(org.osgi.service.component.ComponentContext componentContext) Deactivates the LinkChecker service.
boolean	isValid(String url) Checks a link for validity (HTTP response code 2xx or 3xx)
void	run() Walks through the links stored in the repository and checks them for validity if necessary or removes them from the repository if they are no longer used.

Methods inherited from class java.lang.Object

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

Field Detail

storage

protected LinkInfoStorage storage

goodLinkTestInterval

protected int goodLinkTestInterval

The number of hours to wait until a valid link is checked again.

badLinkTestInterval

protected int badLinkTestInterval

The number of hours to wait until a bad link is checked again.

linkUnusedInterval

protected int linkUnusedInterval

The number of hours after which validity information about a link is removed from the repository if the link is not used any more.

Constructor Detail

LinkCheckerTask

public LinkCheckerTask()

Method Detail

activate

protected void activate(org.osgi.service.component.ComponentContext context)
                 throws RepositoryException

Activates the LinkChecker service.

Parameters:

context - The component context providing startup information

Throws:

RepositoryException

deactivate

protected void deactivate(org.osgi.service.component.ComponentContext componentContext)

Deactivates the LinkChecker service.

Parameters:

componentContext - The component context

run

public void run()

Walks through the links stored in the repository and checks them for validity if necessary or removes them from the repository if they are no longer used.

Specified by:

run in interface Runnable

check

public boolean check(String url)

Description copied from interface: ExternalLinkChecker

Validates and updates the given external link.

Specified by:

check in interface ExternalLinkChecker

Parameters:

url - external link

checkLink

public void checkLink(LinkInfo info)

isValid

public boolean isValid(String url)

Checks a link for validity (HTTP response code 2xx or 3xx)

Parameters:

url - The link to be checked

Returns:

true, if the link is valid