Hi Paul, In another non-ESB based application we have build, we've implemented this automatic retry mechanism with a JMS-based approach. This application sends XML Messages to a Queue, a Message-Driven Bean picks the message up and tries immediately to contact the external webservice. If this call fails, specific meta-data - linked to the automatic retry mechanism - are added to the original XML message and this message is injected again in the Queue. With JBoss you can control the delay with which the message will be processed by the Message-Driven Bean, so the message will be processed after a pre-defined delay. JBoss stores the message in its internally HSQL database until it gets treated correctly, i.e. there was no exception during the processing phase.
Any suggestions for implementing a similar use case with Synapse ? Regards, Stefan Lecho. pzfreo wrote: > > Can I ask how you want to kick this off? I guess a message over a > truly asynchronous approach like JMS or WS-Addressing would be ok. > > We already support timeouts and failure handling, so I think this > would be a pretty simple extension. I guess I'm still thinking what we > do with the message while we are waiting the n minutes. > > Its definitely a good use case for Synapse. > > Paul > > > > On Jan 10, 2008 11:03 AM, stlecho <[EMAIL PROTECTED]> wrote: >> >> Hi, >> >> In the application we are developing, we are contacting external >> Webservices. >> >> When these Webservices are - for some reason - not available, we would >> like >> to automatically retry to contact the Webservice after a pre-defined >> number >> of minutes. When the Webservice is at that point in time available, the >> call >> will succeed. If the Webservice is still not available, a second retry >> should be issued. This retry mechanism will stop when a pre-defined >> maximum >> number of retries is attained. >> >> Is this type of functionality - out-of-the-box or by custom-build >> extension >> - supported by Apache Synapse ? >> >> Regards, Stefan Lecho. >> -- >> View this message in context: >> http://www.nabble.com/Automatic-retry-mechanism-tp14731149p14731149.html >> Sent from the Synapse - User mailing list archive at Nabble.com. >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > > > > -- > Paul Fremantle > Co-Founder and VP of Technical Sales, WSO2 > OASIS WS-RX TC Co-chair > > blog: http://pzf.fremantle.org > [EMAIL PROTECTED] > > "Oxygenating the Web Service Platform", www.wso2.com > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- View this message in context: http://www.nabble.com/Automatic-retry-mechanism-tp14731149p14744243.html Sent from the Synapse - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
