On Fri, Nov 13, 2015 at 4:06 PM, Afkham Azeez <[email protected]> wrote:
> Also add information about these annotation to > https://github.com/wso2/product-mss README.md > Done. In a separate note, it seems above page becoming lengthy, we should separate content into few pages or should include hyperlink menu at the top. Thanks ! > > On Thu, Nov 12, 2015 at 7:15 AM, Afkham Azeez <[email protected]> wrote: > >> Use Java syntax highlighting in the README.md file at >> https://github.com/wso2/product-mss/tree/master/samples/lifecycle >> >> On Thu, Nov 12, 2015 at 7:11 AM, Afkham Azeez <[email protected]> wrote: >> >>> >>> >>> On Thu, Nov 12, 2015 at 5:05 AM, Sagara Gunathunga <[email protected]> >>> wrote: >>> >>>> Use case >>>> -------------- >>>> MS F/W should support at least two bean lifecycle methods so that one >>>> method get call during the service start-up while other one get call just >>>> before the service shutdown. We already have following use cases but this >>>> should be a much lengthy list when implementing real world use cases. >>>> >>>> 1) Service stat publishing - During the service start-up, it should be >>>> possible to initialize DAS agents and make connections, then during the >>>> service shutdown it should be possible to terminate DAS agents properly and >>>> close any connection remains. >>>> >>> >>> How are we doing the above now with the metrics component? >>> >>> >>>> >>>> 2.) Metadata publishing - During the service start-up, it should be >>>> possible to publish service and endpoint metadata into a centralized >>>> metadata repository such as G-Reg and during the service shutdown it should >>>> be possible to remove/deactivate service or endpoint metadata on metadata >>>> repository. >>>> >>>> 3.) Handle connection establishment and termination for data sources >>>> such as RSBMS, LDAPs , legacy systems etc. >>>> >>>> >>>> Solution >>>> -------------- >>>> >>>> Instead of introducing our own proprietary approaches we could use >>>> @PostConstruct[1] and @PreDestroy[2] annotations available with JDK. >>>> Users just need to annotate their init and termination methods as follows. >>>> Additionally this is a natural choice for those who familiar with >>>> JAX-WS/JAX-RS programming models where above annotation are used for same >>>> purpose. >>>> >>>> @PostConstruct >>>> public void init() { >>>> LOG.info("Helloworld :: calling PostConstruct method"); >>>> } >>>> >>>> @PreDestroy >>>> public void close() { >>>> LOG.info("Helloworld :: calling PreDestroy method"); >>>> } >>>> >>>> >>>> I have added above 2 annotation support to MS trunk, please refer >>>> following working sample[3]. >>>> >>>> >>>> @IsuruP , since we have service lifecycle support now, we need to >>>> refactor your analytics sample to use proper annotations and it will become >>>> a real world sample as well, [3] is too simple to demonstrate real world >>>> use cases. >>>> >>>> >>>> [1] - >>>> https://docs.oracle.com/javaee/5/api/javax/annotation/PostConstruct.html >>>> [2] - >>>> https://docs.oracle.com/javaee/5/api/javax/annotation/PreDestroy.html >>>> [3] - https://github.com/wso2/product-mss/tree/master/samples/lifecycle >>>> >>>> >>>> Thanks ! >>>> -- >>>> Sagara Gunathunga >>>> >>>> Architect; WSO2, Inc.; http://wso2.com >>>> V.P Apache Web Services; http://ws.apache.org/ >>>> Linkedin; http://www.linkedin.com/in/ssagara >>>> Blog ; http://ssagara.blogspot.com >>>> >>>> >>> >>> >>> -- >>> *Afkham Azeez* >>> Director of Architecture; WSO2, Inc.; http://wso2.com >>> Member; Apache Software Foundation; http://www.apache.org/ >>> * <http://www.apache.org/>* >>> *email: **[email protected]* <[email protected]> >>> * cell: +94 77 3320919 <%2B94%2077%203320919>blog: * >>> *http://blog.afkham.org* <http://blog.afkham.org> >>> *twitter: **http://twitter.com/afkham_azeez* >>> <http://twitter.com/afkham_azeez> >>> *linked-in: **http://lk.linkedin.com/in/afkhamazeez >>> <http://lk.linkedin.com/in/afkhamazeez>* >>> >>> *Lean . Enterprise . Middleware* >>> >> >> >> >> -- >> *Afkham Azeez* >> Director of Architecture; WSO2, Inc.; http://wso2.com >> Member; Apache Software Foundation; http://www.apache.org/ >> * <http://www.apache.org/>* >> *email: **[email protected]* <[email protected]> >> * cell: +94 77 3320919 <%2B94%2077%203320919>blog: * >> *http://blog.afkham.org* <http://blog.afkham.org> >> *twitter: **http://twitter.com/afkham_azeez* >> <http://twitter.com/afkham_azeez> >> *linked-in: **http://lk.linkedin.com/in/afkhamazeez >> <http://lk.linkedin.com/in/afkhamazeez>* >> >> *Lean . Enterprise . Middleware* >> > > > > -- > *Afkham Azeez* > Director of Architecture; WSO2, Inc.; http://wso2.com > Member; Apache Software Foundation; http://www.apache.org/ > * <http://www.apache.org/>* > *email: **[email protected]* <[email protected]> > * cell: +94 77 3320919 <%2B94%2077%203320919>blog: * > *http://blog.afkham.org* <http://blog.afkham.org> > *twitter: **http://twitter.com/afkham_azeez* > <http://twitter.com/afkham_azeez> > *linked-in: **http://lk.linkedin.com/in/afkhamazeez > <http://lk.linkedin.com/in/afkhamazeez>* > > *Lean . Enterprise . Middleware* > -- Sagara Gunathunga Architect; WSO2, Inc.; http://wso2.com V.P Apache Web Services; http://ws.apache.org/ Linkedin; http://www.linkedin.com/in/ssagara Blog ; http://ssagara.blogspot.com
_______________________________________________ Architecture mailing list [email protected] https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture
