ome.services.blitz.util

Class ParamsCache

java.lang.Object

ome.services.blitz.util.ParamsCache

All Implemented Interfaces:

org.springframework.context.ApplicationContextAware

public class ParamsCache
extends Object
implements org.springframework.context.ApplicationContextAware

Caching replacement of ParamsHelper which maintains an OriginalFile ID+SHA1-to-JobParams mapping in memory rather than storing ParseJob instances in the database. All scripts are read once on start and them subsequently based on the omero.scripts.cache.cron setting. JobParams instances may be removed from the cache based on the omero.scripts.cache.spec setting. If a key is not present in the cache on getParams(Long, String, Current) then an attempt will be made to load it. Any exceptions thrown will be propagated to the caller.

Since:

5.1.2

Constructor Summary

Constructors

Constructor and Description
ParamsCache(Registry reg, Roles roles, ScriptRepoHelper scripts, String spec)

Method Summary

Modifier and Type	Method and Description
omero.grid.JobParams	getParams(Long id, String sha1, Ice.Current curr) Lookup a cached JobParams instance for the given key.
omero.grid.JobParams	lookup(ome.services.blitz.util.ParamsCache.Key key) Called by the LoadingCache when a cache-miss occurs.
void	lookupAll() Called from a Quartz cron trigger for periodically reloading all scripts.
void	removeParams(Long id) Remove a cached JobParams instance.
void	setApplicationContext(org.springframework.context.ApplicationContext ctx)

Methods inherited from class java.lang.Object

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

Constructor Detail

ParamsCache

public ParamsCache(Registry reg,
                   Roles roles,
                   ScriptRepoHelper scripts,
                   String spec)

Method Detail

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext ctx)
                           throws org.springframework.beans.BeansException

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

Throws:

org.springframework.beans.BeansException

getParams

public omero.grid.JobParams getParams(Long id,
                                      String sha1,
                                      Ice.Current curr)
                               throws Ice.UserException

Lookup a cached JobParams instance for the given key. If none is present, then an attempt will be made to load one, possibly throwing a UserException.

Parameters:

id -

sha1 -

curr -

Returns:

See above.

Throws:

Ice.UserException

removeParams

public void removeParams(Long id)

Remove a cached JobParams instance.

Parameters:

id - The id of the job.

lookup

public omero.grid.JobParams lookup(ome.services.blitz.util.ParamsCache.Key key)
                            throws Exception

Called by the LoadingCache when a cache-miss occurs.

Throws:

Exception

lookupAll

public void lookupAll()
               throws Exception

Called from a Quartz cron trigger for periodically reloading all scripts.

Throws:

Exception