Hi!
I'm developing a software where the user creates his own rules, saves then,
and finally fires them in order to preprocess a set of data.
I have implemented a method for controlling infinite loops (its simply a
timer). I would like to notify to the user the rule that has caused the
infinite loop, in order to change it. My code is the following:
public void fireRules(Instances instances) {
try {
assertInstances(instances);
// Worker thread to execute task that may hang.
WorkerThread workerThread = new WorkerThread();
// Wait for timeout or task end.
synchronized (this) {
workerThread.start();
try {
this.wait(60000);
} catch (InterruptedException e) {
log.error(e.getLocalizedMessage(),e);
}
if (!workerThread.isWorkDone()) {
// If work is not done then
workingMemory.fireAllRules()
// hasn't finished (the timeout has
expired).
workingMemory.halt();
// Here comes the code for capturing
rule that has code the loop
throw new
PersistenceException("Operation timeout. Please modify rule
XXX" );
}
}
cleanWorkingMemory();
} catch (PersistenceException e) {
log.error(e.getLocalizedMessage(),e);
}
log.debug("Rule firing finished");
}
private class WorkerThread extends Thread {
private boolean workDone = false;
public boolean isWorkDone() {
synchronized (SingletonInferenceEngine.this) {
return workDone;
}
}
public void run() {
workingMemory.fireAllRules();
synchronized (SingletonInferenceEngine.this) {
workDone = true;
SingletonInferenceEngine.this.notifyAll();
}
}
}
Can you help me?
Thanks in advance!
--
View this message in context:
http://www.nabble.com/infinite-loop-controlling-tf4675899.html#a13359512
Sent from the drools - user mailing list archive at Nabble.com.
_______________________________________________
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
