from("xxx").from("yyy") is not valid.
See the configuration options for the camel-file [1] if the directory should
be polled for every 5 minutes. Look for the the "delay" option and maybe
also the "initialDelay" option.
If you want to send the same file every 5 minutes (for whatever reason), use
the camel-quartz [2] component to trigger a processor which use a consumer
template to consume the file. See the Camel in Action book [3] for details
(site 481 chapter C.2.1).
This is not an elegant way and will be improved in Camel 3 [4] (look for
schedule DSL)
[1] http://camel.apache.org/file2.html
[2] http://camel.apache.org/quartz.html
[3] http://www.manning.com/ibsen/
[4] https://cwiki.apache.org/confluence/display/CAMEL/Camel+3.0+-+Roadmap
Cheers,
Christian