org.opencms.scheduler.jobs
Class CmsImageCacheCleanupJob

java.lang.Object
  org.opencms.scheduler.jobs.CmsImageCacheCleanupJob

All Implemented Interfaces:

I_CmsScheduledJob

public class CmsImageCacheCleanupJob
extends java.lang.Object
implements I_CmsScheduledJob

A schedulable OpenCms job that clear the image cache for the scaled images created by the CmsImageLoader.

Job parameters:

maxage={time in hours}

Specifies the maximum age (in hours) images can be unused before they are removed from the cache. Any image in the image cache folder that has a RFS date of last modification older than this time is considered expired and is therefore deleted.

Since:

6.2.0

Version:

$Revision: 1.6 $

Author:

Alexander Kandzior

Field Summary

static java.lang.String

PARAM_MAXAGE Unlock parameter.

Constructor Summary

CmsImageCacheCleanupJob()

Method Summary

static int	cleanImageCache(float maxAge) Removes all expired image cache entries from the RFS cache.
java.lang.String	launch(CmsObject cms, java.util.Map parameters) This method will be called when this scheduled job is executed.

Methods inherited from class java.lang.Object

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

Field Detail

PARAM_MAXAGE

public static final java.lang.String PARAM_MAXAGE

Unlock parameter.

See Also:

Constant Field Values

Constructor Detail

CmsImageCacheCleanupJob

public CmsImageCacheCleanupJob()

Method Detail

cleanImageCache

public static int cleanImageCache(float maxAge)

Removes all expired image cache entries from the RFS cache.

Empty directories are removed as well.

Parameters:

maxAge - the maximum age of the image cache files in hours (or fractions of hours)

Returns:

the total number of deleted resources

launch

public java.lang.String launch(CmsObject cms,
                               java.util.Map parameters)
                        throws java.lang.Exception

Description copied from interface: I_CmsScheduledJob

This method will be called when this scheduled job is executed.

Depending on the configuration of this job, a new instance of the configured class will be instantiated every time the job is launched, or a new instance will be generated only the first time the job is launched, and re-used afterwards.

The result String will be written to the OpenCms logfile in the org.opencms.scheduler.CmsScheduleManager channel, on INFO log level.

Specified by:

launch in interface I_CmsScheduledJob

Parameters:

cms - will be initialized with the configured users cms context

parameters - the configured parameters

Returns:

a String that will be written to the OpenCms logfile

Throws:

java.lang.Exception - if something goes wrong

See Also:

I_CmsScheduledJob.launch(CmsObject, Map)