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!

Mark, I'm interested in this (for another mad reason). I'm guessing that you're refering to AgendaEventListener; Are you suggesting using an implementation of this listener that has a counter to check if a rule is fired too many times , then calls workingmemory.halt() if required? Or is there a better way of doing this? Thanks Paul Mark Proctor wrote: > There is no out of the box way to do this, you could add an event > listener and check yourself for recursion and halt the session if it > is spotted. > > Mark > Isabelle Hupont wrote: >> 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! >> > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users