Thank you for the prompt reply Asankha, will see if it is feasible on the morrow and report on success.
Cheers, Jeremy. ----- Original Message ----- From: Asankha C. Perera <[EMAIL PROTECTED]> To: [email protected] Sent: Tue, 9 Dec 2008 19:29:07 +1030 (CST) Subject: Re: Problem Hi Jeremy > One of my clients has an interesting problem > > We have a messaging system (System A) that delivers messages to a simple web > service deployed in axis. the web service attempts to relay the message to a > second System (System B). If system B is up and running then all goes well > and axis responds to system A with a success msg. if System B is down then an > error is thrown and axis responds to System A with a failure error.The > problem: If system A receives any response from axis at all it assumes the > message was delivered and does not try to resend the message. What we would > like to happen is if an error is thrown in the web service we would like to > cut connection to System A so it times out and attempts to resend the msg > later. Has anyone tried to do this kind of thing before? We do not have > control over System A so we cannot change the code to check the response from > axis to see if it is an success or failure. > You could use the Apache Synapse ESB (http://synapse.apache.org) and create a proxy service that fronts your real web service. Create the proxy similar to this example [150]. In the <outSequence>, use an XPath or other filter to find out if the message is a successful reply and put the <send/> within that filter. (See first few samples on how to do CBR) For the error case, if you don't pass it through the <send/>, the response will timeout to your system A since its dropped at the ESB cheers asankha [150] http://synapse.apache.org/Synapse_Samples.html#Sample150 -- Asankha C. Perera http://adroitlogic.org http://esbmagic.blogspot.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
