Hi,
I think you might could write a simple shell script on server(if unix)
to check the update time of that status file, and if it was updated,
increase serial number in another file which your Flash client could
check (working like a flag), and create another easy read file such as
XML formated for Flash for update information. So when your Flash find
the serial number is increased, check the XML file then.
George
Paul Andrews wrote:
Hi,
I'm about to start a new project which will display the workings of a server
based system that's manipulating data and passing it between servers. At each
stage of the process a flat file is written that indicates a change in
status/readiness of the data for the next stage in the process.
My flash project will sit over the top of this indicating what's going on -
driven by the flat file status changes. It's unlikely that I can really change
the infrastructure at all - probably the best I'll be able to do will be to
have the status files copied into a suitable form for the flash project to
read. It's going to be interesting if I can't meddle with the infrastructure or
get a file format compatible with loadvars or xml..
Since it's unlikely I can add much to the infrastructure, as far as I can tell
the best approach is simply to poll for the presence of the status files
regularly and read them to pick up any changes. I don't know if I'll be able to
expose the files through a web service, or add a socket server.
So my current thinking is to poll (read the status files if they are there),
then sleep for an interval then poll again (this will be as real-time as I can
manage). Effectively I'll be building an event-driven project that generates
events to update the interface in reaction to the presence of the status files.
Unfortunately, without a socket server I can't push the changes, nor can I
reply on other solutions being installed on the server side (such as media
server).
As the status changes, I'll animate the flash interface to show what's going on
on the servers.
Anyone done this kind of thing before and have some sage advice/gotchas?
Paul
--
ipauland.com
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