[ http://issues.apache.org/jira/browse/DIRMINA-185?page=comments#action_12377747 ]
Niklas Therning commented on DIRMINA-185: ----------------------------------------- I've moved it up into common. I'll close this issue now. > Refactor IoFilter life cycle management > --------------------------------------- > > Key: DIRMINA-185 > URL: http://issues.apache.org/jira/browse/DIRMINA-185 > Project: Directory MINA > Type: Improvement > Reporter: Niklas Therning > Priority: Minor > Fix For: 0.9.4 > > I thought it would be good to have this discussion in JIRA. Please add your > thoughs to this issue. Below I'll try to give a background to the problem. > Recently, a discussion on IoFilter life cycle management has been going on on > the MINA mailing list. Questions have been raised whether MINA should provide > life cycle management (LCM) for all filters (the current situation), if it > should be optional (either on by default or off by default) or if it > shouldn't be supported at all. > In version 0.9.2 of MINA IoFilter has six LCM methods: > init, onPreAdd, onPostAdd, onPreRemove, onPostRemove and destroy > The LCM is handled by AbstractIoFilterChain and the singleton > IoFilterLifeCycleManager. IoFilterLifeCycleManager uses reference counting to > determine whether init/destroy should be called when a filter is added > to/removed from a filter chain. > In MINA 0.8 filter chains were typically shared among sessions. This meant > that init/destroy would only be called once (or at least very few times) in > the lifetime of an application. However, in MINA 0.9 filter chains are always > per session which means that in some circumstances init/destroy will be > called very frequently. > The discussion on LCM forked from the discussion on DIRMINA-169. The LCM > described above causes a deadlock in the current implementation of > ThreadPoolFilter. > How do you think MINA should handle LCM? -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
