I have a configurable camel route for monitoring certain directories. I use
the quartz component to perform my monitoring actions at certain scheduled
times (e g to check that a certain file exists in a certain directory at a
certain time).
I configure my route by giving it the directory to monitor (and a few other
things). However, what directory to monitor depends on what day it is. E g
files that are processed are moved to an archive directory with a
subdirectory name with today's date ( e g ./archive/20101014).
I perform my actual monitoring in a custom processor. I would like to
configure this using the simple language, e g like this:
# Directory to monitor
directory=./archive/${date:now:yyyyMMdd}
I've been using the simple language before as part of the route. However, I
don't know how I can evaluate a simple language expression (like the
directory property above) from within my custom processor. Can anyone help
with this? My code is similar to the following:
from("quartz://" + group + "/" + timerName + "?cron=" + cron).process(new
> ConditionProcessor(condition, mDirectory));
...
public class ConditionProcessor implements Processor {
private ICondition mCondition;
private String mDirectory;
> public ConditionProcessor(ICondition theCondition, String theDirectory) {
mCondition = theCondition;
mDirectory = theDirectory;
}
> public void process(Exchange theExchange) throws Exception {
String evaluatedDirectory = ???; // Evaluate "theDirectory" with simple
> language
if (!mCondition.check(evaluatedDirectory)) {
// Send notification
}
}
}
I'm using Camel 2.4 now but will update to Camel 2.5 when it's available.
/Bengt
