org.shredzone.commons.gravatar.impl

Class GravatarServiceImpl

java.lang.Object

org.shredzone.commons.gravatar.impl.GravatarServiceImpl

All Implemented Interfaces:

GravatarService

@Component(value="gravatarService")
public class GravatarServiceImpl
extends Object
implements GravatarService

Default implementation of GravatarService.

Author:

Richard "Shred" Körber

Constructor Summary

Constructors

Constructor and Description
GravatarServiceImpl()

Method Summary

Modifier and Type	Method and Description
void	cacheCleanup() Cleans up the gravatar cache.
String	computeHash(String mail) Computes the Gravatar hash for a mail address.
File	fetchGravatar(String hash) Fetch a File of the Gravatar image for the given hash.

Methods inherited from class java.lang.Object

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

Constructor Detail

GravatarServiceImpl

public GravatarServiceImpl()

Method Detail

computeHash

public String computeHash(String mail)

Description copied from interface: GravatarService

Computes the Gravatar hash for a mail address. Actually, this is the md5 sum of the mail address.

Specified by:

computeHash in interface GravatarService

Parameters:

mail - Mail address to hash

Returns:

Gravatar hash

fetchGravatar

public File fetchGravatar(String hash)
                   throws IOException

Description copied from interface: GravatarService

Fetch a File of the Gravatar image for the given hash. If there is no such file, the image is downloaded from the Gravatar server, and stored in the file system.

The files are cached for a certain time.

Specified by:

fetchGravatar in interface GravatarService

Parameters:

hash - Gravatar image hash

Returns:

File containing the image

Throws:

IOException

cacheCleanup

@Scheduled(fixedDelay=3600000L)
public void cacheCleanup()

Cleans up the gravatar cache. Oldest entries are deleted until cache size is valid again.