Hi Claus, Thanks so much for the quick response! This helps me very much! Yes, basically, if the sending the email fails, I just want to log the error and end the route. I want the File consumer to complete and move/delete the file, since a new file will be created and processed at a later time with the same data since the FTP failed. Anyways, the info you provided below will be very helpful. I have created a Processor to handle the errors this evening, and that seems to work, however, I think the try catch semantics of the Java DSL will be cleaner. Should I pull down the 2.0-M2 snapshot? Cheers!
Jeff Claus Ibsen-2 wrote: > > Hi > > Error handling is hard, especially for non transactional transports > such as File / FTP and the likes. > > From what I understand from your description is that you want to poll > files and upload them to SFTP. > And in case this fails an email should be sent. And if this email > fails then it should ???? > > If you where doing this with regular Java you would probably use the > try .. catch .. finally. > And they also exists in Camel DSL > > .doTry() > // send file to SFTP > .doCatch(Exception) > .doTry() > // send an email > .doCatch() > // log failed to send email > .end() > .end() > > And they support handled(true) as well. > See more here > http://davsclaus.blogspot.com/2009/04/on-road-to-camel-20-try-catch-finally.html > > And here: > http://camel.apache.org/try-catch-finally.html > > However try .. catch .. finally have been overhauled in Camel 2.0m2 so > you have to wait for this release or use SNAPSHOT if you want. > > > Also the general error handling in Camel 2.0 have had a major overhaul > as well. In fact I do believe that the problem with error handling, > when doing error handling has been fixed in 2.0m2 (SNAPSHOT) as well. > > So in your case if the SMTP failed then it would not "catch this" but > it should be fixed in 2.0m2. > > > > If you want to avoid consuming the same file again then use the > Idempotent Consumer EIP > http://camel.apache.org/idempotent-consumer.html > > > > > On Tue, May 12, 2009 at 1:30 AM, turp1twin <jeff.tur...@ecloser.net> > wrote: >> >> I am new to Camel and am having a tough time getting my route to work >> properly. That being said, it is entirely possible that I am being a >> moron >> and have missed something simple.... However, I have searched the mailing >> list and have not found the answer I am looking for. Any help would be >> appreciated. I am using Camel 2.0-M1 and I am trying to test my various >> error handling scenarios. I am using a Java DSL with various endpoints >> configured in my Spring camel-context.xml. >> >> Endpoints: >> >> <camel:endpoint id="filePollingDir" >> uri="file:///Users/xxxxx/temp/polldir/"/> >> >> <camel:endpoint id="sFtpDestination" >> >> uri="sftp://r098...@sftp.someserver.com/upload?password=xxxxxx&knownHostsFile=/Users/xxxxx/.ssh/known_hosts"/> >> >> <camel:endpoint id="failedTransferSmtp" >> uri="smtp://smtp.someserver.net?to=u...@mymail.net&from=ad...@mymail.net"/> >> >> Route definition: >> >> from(getEndpoint("filePollingDir")).onException(Exception.class).maximumRedeliveries(0).handled(true).end() >> .to(getEndpoint("sFtpDestination")).onException(Exception.class).maximumRedeliveries(2).handled(true) >> .to(getEndpoint("failedTransferSmtp")).onException(Exception.class).maximumRedeliveries(0).handled(true).end(); >> >> >> Basically what I am trying to achieve is that if the SFTP producer fails >> I >> want to send an email notifying a user that the transfer failed. I also >> want >> to handle the case where the smtp producer might also fail. I am getting >> to >> the SMTP endpoint (failedTransferSmtp) just fine, however, when it fails >> (as >> intended for this particular test) it causes the "filePollingDir" >> consumer >> to rollback and consume the source file again. This continues in a >> loop... >> Is this behavior intended? If so, can I configure the consumer to stop >> consuming the same file again? Again, I might be missing something >> simple, >> but any help would be appreciated. Cheers! >> >> Jeff >> >> >> >> -- >> View this message in context: >> http://www.nabble.com/Error-Handling-tp23493625p23493625.html >> Sent from the Camel - Users mailing list archive at Nabble.com. >> >> > > > > -- > Claus Ibsen > Apache Camel Committer > > Open Source Integration: http://fusesource.com > Blog: http://davsclaus.blogspot.com/ > Twitter: http://twitter.com/davsclaus > Apache Camel Reference Card: > http://refcardz.dzone.com/refcardz/enterprise-integration > Interview with me: > http://architects.dzone.com/articles/interview-claus-ibsen-about?mz=7893-progress > > -- View this message in context: http://www.nabble.com/Error-Handling-tp23493625p23496008.html Sent from the Camel - Users mailing list archive at Nabble.com.
