RE: FTP in response to mail queue message
Alas, the file can easily outgrow any time frame that might be suggested for it. There's a problem with using any time related file attribute as the message, it isn't instantaneous. I think this is an inherent problem with folder polling ESB components. The assumption all these systems make is that any message is instantaneously processed, which isn't the case in our files. The presence of the file in the folder is the "message", but really the presence of the COMPLETED file should be the message. Thus, we need a way to allow the sending process to poke along and then message only when it deems that it is complete. Built in measures of completeness (file size, file age) all have the problem that as the process matures, the parameters set change: 6 months from now we are so big that our process takes 2 hours to run instead of 30 minutes, or end of quarter processing takes us out of the planned time range.