On Mon, Jan 10, 2011 at 10:11 AM, Udayanga Wickramasinghe <udaya...@wso2.com > wrote:
> Hi devs, > i think it is better we do $subject for Synapse . There is already a cache > implementation for synapse which store and manage endpoints, remote entries > ,etc. However the problem is all cache related functions are currently done > in Synapse configuration and Registry,etc modules, which is not scalable > (and difficult to maintain). Why not? It does a pretty good job at caching configuration artifacts at the moment. Also it can be easily accessed through the configuration language (using keys) and the Synapse extension APIs (synCtx#getEntry). I admit that it is not perfect. But I don't see a strong enough case to completely get rid of it and come up with a new impl :( Thanks, Hiranya > I suggest , we separate the cache functionality into a different module.IMO > that would allow us to to extend current cache functionality as well (ie:- > prefetch and cache certain entries at startup for possible performance gain > ,etc). > API i am suggesting has the following, > *Cache <Interface>* > #insert(String key,Cacheable cachedObject,CacheConstraint constraint); > #insert(String key,Cacheable cachedObject); > #Cacheable getCachedObject(String key); > #long getGlobalCacheDuration(); > * > Cacheable <interface>* > #Object getValue(); > #String getKey(); > #boolean isExpired(); > #clearCache(); > #long getVersion(); > #long getExpiryTime(); > .... > et*c > *(i think we could easily extend current Synapse Entry class [which is the > object currently used for cache] to implement Cacheable interface ) > * > > CacheConstraint* *<interface>* > boolean evaluate(Cacheable cachedObj) > > We could also include a cache.xml construct to configure this cache at > startup (ie:-cache duration , cache providers , prefetching params , etc) . > Really appreciate thoughts of you all , regarding this. thnx in advance. > > Regards, > Udayanga > > -- > *Udayanga Wickramasinghe* > Software Engineer; WSO2 Inc.; http://wso2.com, > *email: **udaya...@wso2.com* <udayan...@wso2.com>* cell: +94 (77) 983-4365 > blog: **http://udayangawiki.blogspot.com*<http://udayangawiki.blogspot.com/> > * > twitter: **http://twitter.com/udayanga_wick*<http://twitter.com/udayanga_wick> > * > * > -- Hiranya Jayathilaka Senior Software Engineer; WSO2 Inc.; http://wso2.org E-mail: hira...@wso2.com; Mobile: +94 77 633 3491 Blog: http://techfeast-hiranya.blogspot.com
